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4036 | Black Flag | Black Flag or black flag may refer to:
Flags
The Black Standard, a legendary flag in Islamic tradition
The Anarchist black flag
The Jolly Roger, flag associated with piracy
The Pan-African flag, a trans-national unity symbol
Black flag (racing)
Arts, entertainment, and media
Black Flag (band), an American hardcore punk band
Black Flag (comics), a comic book superhero team from Maximum Press
Black Flag (Ektomorf album), a 2012 album by Ektomorf
Black Flag (Machine Gun Kelly mixtape), 2013
"Black Flag" (song), a 1992 song by King's X
Black Flag (newspaper), a publication in Britain
Assassin's Creed IV: Black Flag, 2013 videogame by Ubisoft
Black Flags: The Rise of ISIS, a 2015 Pulitzer prize-winning book by Joby Warrick
Places
Black Flag, Western Australia, an abandoned town named after the Black Flag gold mine and farm
Other uses
Ali Charaf Damache, a terror suspect with the nom de guerre "the Black Flag"
Black Flag (insecticide)
Black Flag Army, a militia in Vietnam and southern China, 1860s-1885
Chernoe Znamia, a 20th-century Russian anarchist organisation
Ferraria crispa, a plant also known as black flag | https://en.wikipedia.org/wiki/Black_Flag | 2025-04-05T18:26:40.401125 |
4037 | Bletchley Park | |established = 1938 (as a code-breaking centre); 1993 (as a museum)
|location = Bletchley, Milton Keynes, Buckinghamshire, England, United Kingdom
|visitors |director Iain Standen
|curator |publictransit Bletchley railway station
|website =
}}
Bletchley Park is an English country house and estate in Bletchley, Milton Keynes (Buckinghamshire), that became the principal centre of Allied code-breaking during the Second World War. The mansion was constructed during the years following 1883 for the financier and politician Herbert Leon in the Victorian Gothic, Tudor and Dutch Baroque styles, on the site of older buildings of the same name.
During World War II, the estate housed the Government Code and Cypher School (GC&CS), which regularly penetrated the secret communications of the Axis Powers most importantly the German Enigma and Lorenz ciphers. The GC&CS team of codebreakers included John Tiltman, Dilwyn Knox, Alan Turing, Harry Golombek, Gordon Welchman, Hugh Alexander, Donald Michie, Bill Tutte and Stuart Milner-Barry.
According to the official historian of British Intelligence, the "Ultra" intelligence produced at Bletchley shortened the war by two to four years, and without it the outcome of the war would have been uncertain. The team at Bletchley Park devised automatic machinery to help with decryption, culminating in the development of Colossus, the world's first programmable digital electronic computer. Codebreaking operations at Bletchley Park came to an end in 1946 and all information about the wartime operations was classified until the mid-1970s.
After the war it had various uses including as a teacher-training college and local GPO headquarters. By 1990 the huts in which the codebreakers worked were being considered for demolition and redevelopment. The Bletchley Park Trust was formed in February 1992 to save large portions of the site from development.
More recently, Bletchley Park has been open to the public, featuring interpretive exhibits and huts that have been rebuilt to appear as they did during their wartime operations. It receives hundreds of thousands of visitors annually. The separate National Museum of Computing, which includes a working replica Bombe machine and a rebuilt Colossus computer, is housed in Block H on the site.
History
The site appears in the Domesday Book of 1086 as part of the Manor of Eaton. Browne Willis built a mansion there in 1711, but after Thomas Harrison purchased the property in 1793 this was pulled down. It was first known as Bletchley Park after its purchase by the architect Samuel Lipscomb Seckham in 1877, who built a house there. The estate of was bought in 1883 by Sir Herbert Samuel Leon, who expanded the then-existing house into what architect Landis Gores called a "maudlin and monstrous pile" combining Victorian Gothic, Tudor, and Dutch Baroque styles. At his Christmas family gatherings there was a fox hunting meet on Boxing Day with glasses of sloe gin from the butler, and the house was always "humming with servants". With 40 gardeners, a flower bed of yellow daffodils could become a sea of red tulips overnight. After the death of Herbert Leon in 1926, the estate continued to be occupied by his widow Fanny Leon (née Higham) until her death in 1937.
In 1938, the mansion and much of the site was bought by a builder for a housing estate, but in May 1938 Admiral Sir Hugh Sinclair, head of the Secret Intelligence Service (SIS or MI6), bought the mansion and of land for £6,000 (£ today) for use by GC&CS and SIS in the event of war. He used his own money as the Government said they did not have the budget to do so.
A key advantage seen by Sinclair and his colleagues (inspecting the site under the cover of "Captain Ridley's shooting party") was Bletchley's geographical centrality. It was almost immediately adjacent to Bletchley railway station, where the "Varsity Line" between Oxford and Cambridgewhose universities were expected to supply many of the code-breakersmet the main West Coast railway line connecting London, Birmingham, Manchester, Liverpool, Glasgow and Edinburgh. Watling Street, the main road linking London to the north-west (subsequently the A5) was close by, and high-volume communication links were available at the telegraph and telephone repeater station in nearby Fenny Stratford.
Bletchley Park was known as "B.P." to those who worked there.
"Station X" (X Roman numeral ten), "London Signals Intelligence Centre", and "Government Communications Headquarters" were all cover names used during the war.
The formal posting of the many "Wrens"members of the Women's Royal Naval Serviceworking there, was to HMS Pembroke V. Royal Air Force names of Bletchley Park and its outstations included RAF Eastcote, RAF Lime Grove and RAF Church Green. The postal address that staff had to use was "Room 47, Foreign Office".
After the war, the Government Code & Cypher School became the Government Communications Headquarters (GCHQ), moving to Eastcote in 1946 and to Cheltenham in the 1950s. The site was used by various government agencies, including the GPO and the Civil Aviation Authority. One large building, block F, was demolished in 1987 by which time the site was being run down with tenants leaving.
In 1990 the site was at risk of being sold for housing development. However, Milton Keynes Council made it into a conservation area. Bletchley Park Trust was set up in 1991 by a group of people who recognised the site's importance. The initial trustees included Roger Bristow, Ted Enever, Peter Wescombe, Dr Peter Jarvis of the Bletchley Archaeological & Historical Society, and Tony Sale who in 1994 became the first director of the Bletchley Park Museums.Personnel
's 2007 Alan Turing statue]]
Admiral Hugh Sinclair was the founder and head of GC&CS between 1919 and 1938 with Commander Alastair Denniston being operational head of the organization from 1919 to 1942, beginning with its formation from the Admiralty's Room 40 (NID25) and the War Office's MI1b. Key GC&CS cryptanalysts who moved from London to Bletchley Park included John Tiltman, Dillwyn "Dilly" Knox, Josh Cooper, Oliver Strachey and Nigel de Grey. These people had a variety of backgroundslinguists and chess champions were common, and Knox's field was papyrology. The British War Office recruited top solvers of cryptic crossword puzzles, as these individuals had strong lateral thinking skills.
On the day Britain declared war on Germany, Denniston wrote to the Foreign Office about recruiting "men of the professor type". Personal networking drove early recruitments, particularly of men from the universities of Cambridge and Oxford. Trustworthy women were similarly recruited for administrative and clerical jobs. In one 1941 recruiting stratagem, The Daily Telegraph was asked to organise a crossword competition, after which promising contestants were discreetly approached about "a particular type of work as a contribution to the war effort".
Denniston recognised, however, that the enemy's use of electromechanical cipher machines meant that formally trained mathematicians would also be needed; Oxford's Peter Twinn joined GC&CS in February 1939; Cambridge's Alan Turing and Gordon Welchman began training in 1938 and reported to Bletchley the day after war was declared, along with John Jeffreys. Later-recruited cryptanalysts included the mathematicians Derek Taunt, Jack Good, Bill Tutte, and Max Newman; historian Harry Hinsley, and chess champions Hugh Alexander and Stuart Milner-Barry. Joan Clarke was one of the few women employed at Bletchley as a full-fledged cryptanalyst.
When seeking to recruit more suitably advanced linguists, John Tiltman turned to Patrick Wilkinson of the Italian section for advice, and he suggested asking Lord Lindsay of Birker, of Balliol College, Oxford, S. W. Grose, and Martin Charlesworth, of St John's College, Cambridge, to recommend classical scholars or applicants to their colleges.
This eclectic staff of "Boffins and Debs" (scientists and debutantes, young women of high society) caused GC&CS to be whimsically dubbed the "Golf, Cheese and Chess Society". Among those who worked there and later became famous in other fields were historian Asa Briggs, politician Roy Jenkins and novelist Angus Wilson.
During a morale-boosting visit on 9 September 1941, Winston Churchill reportedly remarked to Denniston or Menzies: "I told you to leave no stone unturned to get staff, but I had no idea you had taken me so literally." Six weeks later, having failed to get sufficient typing and unskilled staff to achieve the productivity that was possible, Turing, Welchman, Alexander and Milner-Barry wrote directly to Churchill. His response was "Action this day make sure they have all they want on extreme priority and report to me that this has been done."
After initial training at the Inter-Service Special Intelligence School set up by John Tiltman (initially at an RAF depot in Buckingham and later in Bedfordwhere it was known locally as "the Spy School") staff worked a six-day week, rotating through three shifts: 4 p.m. to midnight, midnight to 8 a.m. (the most disliked shift), and 8 a.m. to 4 p.m., each with a half-hour meal break. At the end of the third week, a worker went off at 8 a.m. and came back at 4 p.m., thus putting in 16 hours on that last day.<!-- Could we have explicit clarification of the sequence of shifts? Also, how did six-days/week work? Surely the place wasn't idle on Sundays... --> The irregular hours affected workers' health and social life, as well as the routines of the nearby homes at which most staff lodged. The work was tedious and demanded intense concentration; staff got one week's leave four times a year, but some "girls" collapsed and required extended rest. Recruitment took place to combat a shortage of experts in Morse code and German.
In January 1945, at the peak of codebreaking efforts, nearly 10,000 personnel were working at Bletchley and its outstations. About three-quarters of these were women. Among them were Eleanor Ireland, who worked on the Colossus computers and Ruth Briggs, a German scholar, who worked within the Naval Section.
The female staff in Dilwyn Knox's section were sometimes termed "Dilly's Fillies". Knox's methods enabled Mavis Lever (who married mathematician and fellow code-breaker Keith Batey) and Margaret Rock to solve a German code, the Abwehr cipher.
Many of the women had backgrounds in languages, particularly French, German and Italian. Among them were Rozanne Colchester, a translator who worked mainly for the Italian air forces Section, and Cicely Mayhew, recruited straight from university, who worked in Hut 8, translating decoded German Navy signals, as did Jane Fawcett (née Hughes) who decrypted a vital message concerning the German battleship Bismarck and after the war became an opera singer and buildings conservationist.
Secrecy
Properly used, the German Enigma and Lorenz ciphers should have been virtually unbreakable, but flaws in German cryptographic procedures, and poor discipline among the personnel carrying them out, created vulnerabilities that made Bletchley's attacks just barely feasible. These vulnerabilities, however, could have been remedied by relatively simple improvements in enemy procedures, and such changes would certainly have been implemented had Germany had any hint of Bletchley's success. Thus the intelligence Bletchley produced was considered wartime Britain's "Ultra secret"higher even than the normally highest classification }}and security was paramount.
All staff signed the Official Secrets Act (1939) and a 1942 security warning emphasised the importance of discretion even within Bletchley itself: "Do not talk at meals. Do not talk in the transport. Do not talk travelling. Do not talk in the billet. Do not talk by your own fireside. Be careful even in your Hut ..."
Nevertheless, there were security leaks. Jock Colville, the Assistant Private Secretary to Winston Churchill, recorded in his diary on 31 July 1941, that the newspaper proprietor Lord Camrose had discovered Ultra and that security leaks "increase in number and seriousness". Without doubt, the most serious of these was that Bletchley Park had been infiltrated by John Cairncross, the notorious Soviet mole and member of the Cambridge Spy Ring, who leaked Ultra material to Moscow.
Despite the high degree of secrecy surrounding Bletchley Park during the Second World War, unique and hitherto unknown amateur film footage of the outstation at nearby Whaddon Hall came to light in 2020, after being anonymously donated to the Bletchley Park Trust. A spokesman for the Trust noted the film's existence was all the more incredible because it was "very, very rare even to have [still] photographs" of the park and its associated sites. Early work The first personnel of the Government Code and Cypher School (GC&CS) moved to Bletchley Park on 15 August 1939. The Naval, Military, and Air Sections were on the ground floor of the mansion, together with a telephone exchange, teleprinter room, kitchen, and dining room; the top floor was allocated to MI6. Construction of the wooden huts began in late 1939, and Elmers School, a neighbouring boys' boarding school in a Victorian Gothic redbrick building by a church, was acquired for the Commercial and Diplomatic Sections.
After the United States joined World War II, a number of American cryptographers were posted to Hut 3, and from May 1943 onwards there was close co-operation between British and American intelligence. (See 1943 BRUSA Agreement.) In contrast, the Soviet Union was never officially told of Bletchley Park and its activities, a reflection of Churchill's distrust of the Soviets even during the US-UK-USSR alliance imposed by the Nazi threat.
The only direct enemy damage to the site was done 2021 November 1940 by three bombs probably intended for Bletchley railway station; Hut 4, shifted two feet off its foundation, was winched back into place as
work inside continued.Intelligence reportingInitially, when only a very limited amount of Enigma traffic was being read, deciphered non-Naval Enigma messages were sent from Hut 6 to Hut 3 which handled their translation and onward transmission. Subsequently, under Group Captain Eric Jones, Hut 3 expanded to become the heart of Bletchley Park's intelligence effort, with input from decrypts of "Tunny" (Lorenz SZ42) traffic and many other sources. Early in 1942 it moved into Block D, but its functions were still referred to as Hut 3.
Hut 3 contained a number of sections: Air Section "3A", Military Section "3M", a small Naval Section "3N", a multi-service Research Section "3G" and a large liaison section "3L". It also housed the Traffic Analysis Section, SIXTA. An important function that allowed the synthesis of raw messages into valuable Military intelligence was the indexing and cross-referencing of information in a number of different filing systems. Intelligence reports were sent out to the Secret Intelligence Service, the intelligence chiefs in the relevant ministries, and later on to high-level commanders in the field.
Naval Enigma deciphering was in Hut 8, with translation in Hut 4. Verbatim translations were sent to the Naval Intelligence Division (NID) of the Admiralty's Operational Intelligence Centre (OIC), supplemented by information from indexes as to the meaning of technical terms and cross-references from a knowledge store of German naval technology. Where relevant to non-naval matters, they would also be passed to Hut 3. Hut 4 also decoded a manual system known as the dockyard cipher, which sometimes carried messages that were also sent on an Enigma network. Feeding these back to Hut 8 provided excellent "cribs" for Known-plaintext attacks on the daily naval Enigma key.Listening stations
Initially, a wireless room was established at Bletchley Park.
It was set up in the mansion's water tower under the code name "Station X", a term now sometimes applied to the codebreaking efforts at Bletchley as a whole. The "X" is the Roman numeral "ten", this being the Secret Intelligence Service's tenth such station. Due to the long radio aerials stretching from the wireless room, the radio station was moved from Bletchley Park to nearby Whaddon Hall to avoid drawing attention to the site.
Subsequently, other listening stationsthe Y-stations, such as the ones at Chicksands in Bedfordshire, Beaumanor Hall, Leicestershire (where the headquarters of the War Office "Y" Group was located) and Beeston Hill Y Station in Norfolkgathered raw signals for processing at Bletchley. Coded messages were taken down by hand and sent to Bletchley on paper by motorcycle despatch riders or (later) by teleprinter.
Additional buildings
The wartime needs required the building of additional accommodation.HutsOften a hut's number became so strongly associated with the work performed inside that even when the work was moved to another building it was still referred to by the original "Hut" designation.
* Hut 1: The first hut, built in 1939 used to house the Wireless Station for a short time,
* Hut 2: A recreational hut for "beer, tea, and relaxation".
* Hut 3: Intelligence: translation and analysis of Army and Air Force decrypts
* Hut 4: Naval intelligence: analysis of Naval Enigma and Hagelin decrypts
* Hut 5: Military intelligence including Italian, Spanish, and Portuguese ciphers and German police codes.
* Hut 6: Cryptanalysis of Army and Air Force Enigma
* Hut 7: Cryptanalysis of Japanese naval codes and intelligence.
* Hut 8: Cryptanalysis of Naval Enigma.
* Hut 11: Bombe building.
* Hut 14: Communications centre.
* Hut 15: SIXTA (Signals Intelligence and Traffic Analysis).
* Hut 16: ISK (Intelligence Service Knox) Abwehr ciphers.
* Hut 18: ISOS (Intelligence Section Oliver Strachey).
<!--* Hut 19: Currently used by 2366 ATC Squadron-->
* Hut 23: Primarily used to house the engineering department. After February 1943, Hut 3 was renamed Hut 23.
Blocks
In addition to the wooden huts, there were a number of brick-built "blocks".
* Block A: Naval Intelligence.
* Block B: Italian Air and Naval, and Japanese code breaking.
* Block C: Stored the substantial punch-card indexes.
* Block D: From February 1943 it housed those from Hut 3, who synthesised intelligence from multiple sources, Huts 6 and 8 and SIXTA.
* Block E: Incoming and outgoing Radio Transmission and TypeX.
* Block F: Included the Newmanry and Testery, and Japanese Military Air Section. It has since been demolished.
* Block G: Traffic analysis and deception operations.
* Block H: Tunny and Colossus (now The National Museum of Computing).
Work on specific countries' signals
German signals
, Jerzy Różycki and Henryk Zygalski, mathematicians of the Polish intelligence service, in first breaking the Enigma code. Their work greatly assisted the Bletchley Park code breakers and contributed to the Allied victory in World War II."]]
Most German messages decrypted at Bletchley were produced by one or another version of the Enigma cipher machine, but an important minority were produced by the even more complicated twelve-rotor Lorenz SZ42 on-line teleprinter cipher machine used for high command messages, known as Fish.
Five weeks before the outbreak of war, Warsaw's Cipher Bureau revealed its achievements in breaking Enigma to astonished French and British personnel.
, built by a team led by John Harper and switched on by the Duke of Kent, patron of the British Computer Society, on 17 July 2008. This is now located at The National Museum of Computing in Block H on Bletchley Park.]]
The bombe was an electromechanical device whose function was to discover some of the daily settings of the Enigma machines on the various German military networks. Its pioneering design was developed by Alan Turing (with an important contribution from Gordon Welchman) and the machine was engineered by Harold 'Doc' Keen of the British Tabulating Machine Company. Each machine was about high and wide, deep and weighed about a ton.
At its peak, GC&CS was reading approximately 4,000 messages per day. As a hedge against enemy attack most bombes were dispersed to installations at Adstock and Wavendon (both later supplanted by installations at Stanmore and Eastcote), and Gayhurst.
Luftwaffe messages were the first to be read in quantity. The German navy had much tighter procedures, and the capture of code books was needed before they could be broken. When, in February 1942, the German navy introduced the four-rotor Enigma for communications with its Atlantic U-boats, this traffic became unreadable for a period of ten months. Britain produced modified bombes, but it was the success of the US Navy Bombe that was the main source of reading messages from this version of Enigma for the rest of the war. Messages were sent to and fro across the Atlantic by enciphered teleprinter links.
Bletchley's work was essential to defeating the U-boats in the Battle of the Atlantic, and to the British naval victories in the Battle of Cape Matapan and the Battle of North Cape. In 1941, Ultra exerted a powerful effect on the North African desert campaign against German forces under General Erwin Rommel. General Sir Claude Auchinleck wrote that were it not for Ultra, "Rommel would have certainly got through to Cairo". While not changing the events,<!--maybe instead we should list more situations in which events WERE changed--> "Ultra" decrypts featured prominently in the story of Operation SALAM, László Almásy's mission across the desert behind Allied lines in 1942. Prior to the Normandy landings on D-Day in June 1944, the Allies knew the locations of all but two of Germany's fifty-eight Western-front divisions.
Italian signals
Italian signals had been of interest since Italy's attack on Abyssinia in 1935.
During the Spanish Civil War the Italian Navy used the K model of the commercial Enigma without a plugboard; this was solved by Knox in 1937.
When Italy entered the war in 1940 an improved version of the machine was used, though little traffic was sent by it and there were "wholesale changes" in Italian codes and cyphers.
Knox was given a new section for work on Enigma variations, which he staffed with women ("Dilly's girls"), who included Margaret Rock, Jean Perrin, Clare Harding, Rachel Ronald, Elisabeth Granger; and Mavis Lever.
Mavis Lever solved the signals revealing the Italian Navy's operational plans before the Battle of Cape Matapan in 1941, leading to a British victory.
Although most Bletchley staff did not know the results of their work, Admiral Cunningham visited Bletchley in person a few weeks later to congratulate them. In June 1941, Willson became the first of the team to decode the Hagelin system, thus enabling military commanders to direct the Royal Navy and Royal Air Force to sink enemy ships carrying supplies from Europe to Rommel's Afrika Korps. This led to increased shipping losses and, from reading the intercepted traffic, the team learnt that between May and September 1941 the stock of fuel for the Luftwaffe in North Africa reduced by 90 per cent.
After an intensive language course, in March 1944 Willson switched to Japanese language-based codes.
A Middle East Intelligence Centre (MEIC) was set up in Cairo in 1939. When Italy entered the war in June 1940, delays in forwarding intercepts to Bletchley via congested radio links resulted in cryptanalysts being sent to Cairo. A Combined Bureau Middle East (CBME) was set up in November, though the Middle East authorities made "increasingly bitter complaints" that GC&CS was giving too little priority to work on Italian cyphers. However, the principle of concentrating high-grade cryptanalysis at Bletchley was maintained. John Chadwick started cryptanalysis work in 1942 on Italian signals at the naval base 'HMS Nile' in Alexandria. Later, he was with GC&CS; in the Heliopolis Museum, Cairo and then in the Villa Laurens, Alexandria.Soviet signalsSoviet signals had been studied since the 1920s. In 193940, John Tiltman (who had worked on Russian Army traffic from 1930) set up two Russian sections at Wavendon (a country house near Bletchley) and at Sarafand in Palestine. Two Russian high-grade army and navy systems were broken early in 1940. Tiltman spent two weeks in Finland, where he obtained Russian traffic from Finland and Estonia in exchange for radio equipment. In June 1941, when the Soviet Union became an ally, Churchill ordered a halt to intelligence operations against it. In December 1941, the Russian section was closed down, but in late summer 1943 or late 1944, a small GC&CS Russian cypher section was set up in London overlooking Park Lane, then in Sloane Square.Japanese signalsAn outpost of the Government Code and Cypher School had been set up in Hong Kong in 1935, the Far East Combined Bureau (FECB). The FECB naval staff moved in 1940 to Singapore, then Colombo, Ceylon, then Kilindini, Mombasa, Kenya. They succeeded in deciphering Japanese codes with a mixture of skill and good fortune. The Army and Air Force staff went from Singapore to the Wireless Experimental Centre at Delhi, India.
In early 1942, a six-month crash course in Japanese, for 20 undergraduates from Oxford and Cambridge, was started by the Inter-Services Special Intelligence School in Bedford, in a building across from the main Post Office. This course was repeated every six months until war's end. Most of those completing these courses worked on decoding Japanese naval messages in Hut 7, under John Tiltman.PostwarContinued secrecyAfter the War, the secrecy imposed on Bletchley staff remained in force, so that most relatives never knew more than that a child, spouse, or parent had done some kind of secret war work. Churchill referred to the Bletchley staff as "the geese that laid the golden eggs and never cackled". That said, occasional mentions of the work performed at Bletchley Park slipped the censor's net and appeared in print.
With the publication of F. W. Winterbotham's The Ultra Secret (1974) public discussion of Bletchley Park's work finally became possible, although some former staff considered themselves bound to silence forever.
Professor Brian Randell was researching the history of computer science in Britain in 1975–76 for a conference on the history of computing held at the Los Alamos National Laboratory, New Mexico on 10–15 June 1976, and received permission to present a paper on wartime development of the Colossi at the Post Office Research Station, Dollis Hill. (In October 1975 the British Government had released a series of captioned photographs from the Public Record Office.) The interest in the "revelations" in his paper resulted in a special evening meeting when Randell and Coombs answered further questions. Coombs later wrote that "no member of our team could ever forget the fellowship, the sense of purpose and, above all, the breathless excitement of those days". In 1977 Randell published an article "The First Electronic Computer" in several journals.
In July 2009 the British government announced that Bletchley personnel would be recognised with a commemorative badge.
Site
After the war, the site passed through a succession of hands and saw a number of uses, including as a teacher-training college and local GPO headquarters. By 1991, the site was nearly empty and the buildings were at risk of demolition for redevelopment.
In February 1992, the Milton Keynes Borough Council declared most of the Park a conservation area, and the Bletchley Park Trust was formed to maintain the site as a museum. The site opened to visitors in 1993, and was formally inaugurated by the Duke of Kent as Chief Patron in July 1994. In 1999 the land owners, the Property Advisors to the Civil Estate and BT, granted a lease to the Trust giving it control over most of the site.
Heritage attraction
June 2014 saw the completion of an £8 million restoration project by museum design specialist, Event Communications, which was marked by a visit from Catherine, Duchess of Cambridge. The Duchess' paternal grandmother, Valerie, and Valerie's twin sister, Mary (née Glassborow), both worked at Bletchley Park during the war. The twin sisters worked as Foreign Office Civilians in Hut 6, where they managed the interception of enemy and neutral diplomatic signals for decryption. Valerie married Catherine's grandfather, Captain Peter Middleton. A memorial at Bletchley Park commemorates Mary and Valerie Middleton's work as code-breakers.Exhibitions]]
* Block C Visitor Centre
** Secrets Revealed introduction
** The Road to Bletchley Park. Codebreaking in World War One.
** Intel Security Cybersecurity exhibition. Online security and privacy in the 21st century.
* Block B
** Lorenz Cipher
** Alan Turing
** Enigma machines
** Japanese codes
** Home Front exhibition. How people lived in WW2
* The Mansion
** Office of Alistair Denniston
** Library. Dressed as a World War II naval intelligence office
** The Imitation Game exhibition
** Gordon Welchman: Architect of Ultra Intelligence exhibition
* Huts 3 and 6. Codebreaking offices as they would have looked during World War II.
* Hut 8.
** Interactive exhibitions explaining codebreaking
** Alan Turing's office
** Pigeon exhibition. The use of pigeons in World War II.
* Hut 11. Life as a WRNS Bombe operator
* Hut 12. Bletchley Park: Rescued and Restored. Items found during the restoration work.
* Wartime garages
* Hut 19. 2366 Bletchley Park Air Training Corp Squadron
Learning Department
students]]
The Bletchley Park Learning Department offers educational group visits with active learning activities for schools and universities. Visits can be booked in advance during term time, where students can engage with the history of Bletchley Park and understand its wider relevance for computer history and national security. Their workshops cover introductions to codebreaking, cyber security and the story of Enigma and Lorenz.
Funding
In October 2005, American billionaire Sidney Frank donated £500,000 to Bletchley Park Trust to fund a new Science Centre dedicated to Alan Turing. Simon Greenish joined as Director in 2006 to lead the fund-raising effort in a post he held until 2012 when Iain Standen took over the leadership role. In July 2008, a letter to The Times from more than a hundred academics condemned the neglect of the site. In September 2008, PGP, IBM and other technology firms announced a fund-raising campaign to repair the facility. On 6 November 2008 it was announced that English Heritage would donate £300,000 to help maintain the buildings at Bletchley Park, and that they were in discussions regarding the donation of a further £600,000.
In October 2011, the Bletchley Park Trust received a £4.6 million Heritage Lottery Fund grant to be used "to complete the restoration of the site, and to tell its story to the highest modern standards" on the condition that £1.7 million of match funding is raised by the Bletchley Park Trust. Just weeks later, Google contributed £550,000 and by June 2012 the trust had successfully raised £2.4 million to unlock the grants to restore Huts 3 and 6, as well as develop its exhibition centre in Block C.
Additional income is raised by renting Block H to the National Museum of Computing, and some office space in various parts of the park to private firms.
Due to the COVID-19 pandemic the Trust expected to lose more than £2 million in 2020 and be required to cut a third of its workforce. Former MP John Leech asked Amazon, Apple, Google, Facebook and Microsoft to donate £400,000 each to secure the future of the Trust. Leech had led the successful campaign to pardon Alan Turing and implement Turing's Law.
Other organisations sharing the campus
The National Museum of Computing
supervising the breaking of an enciphered message with the completed Colossus computer rebuild in 2006 at The National Museum of Computing]]
The National Museum of Computing is housed in Block H, which is rented from the Bletchley Park Trust. Its Colossus and Tunny galleries tell an important part of allied breaking of German codes during World War II. There is a working reconstruction of a Bombe and a rebuilt Colossus computer which was used on the high-level Lorenz cipher, codenamed Tunny by the British.
The museum, which opened in 2007, is an independent voluntary organisation that is governed by its own board of trustees. Its aim is "To collect and restore computer systems particularly those developed in Britain and to enable people to explore that collection for inspiration, learning and enjoyment." Through its many exhibits, the museum displays the story of computing through the mainframes of the 1960s and 1970s, and the rise of personal computing in the 1980s. It has a policy of having as many of the exhibits as possible in full working order.
Science and Innovation Centre
This consisted of serviced office accommodation housed in Bletchley Park's Blocks A and E, and the upper floors of the Mansion. Its aim was to foster the growth and development of dynamic knowledge-based start-ups and other businesses. It closed in 2021 and blocks A and E were taken into use as part of the museum.
Proposed National College of Cyber Security
In April 2020 Bletchley Park Capital Partners, a private company run by Tim Reynolds, Deputy Chairman of the National Museum of Computing, announced plans to sell off the freehold to part of the site containing former Block G for commercial development. Offers of between £4 million and £6 million were reportedly being sought for the 3 acre plot, for which planning permission for employment purposes was granted in 2005. Previously, the construction of a National College of Cyber Security for students aged from 16 to 19 years old had been envisaged on the site, to be housed in Block G after renovation with funds supplied by the Bletchley Park Science and Innovation Centre.
RSGB National Radio Centre
The Radio Society of Great Britain's National Radio Centre (including a library, radio station, museum and bookshop) are in a newly constructed building close to the main Bletchley Park entrance.Final recognitionNot until July 2009 did the British government fully acknowledge the contribution of the many people working for the Government Code and Cypher School (GC&CS) at Bletchley. Only then was a commemorative medal struck to be presented to those involved. The gilded medal bears the inscription GC&CS 1939–1945 Bletchley Park and its Outstations.
In popular culture
Literature
* Bletchley featured heavily in Robert Harris' novel Enigma (1995).
* A fictionalised version of Bletchley Park is featured in Neal Stephenson's novel Cryptonomicon (1999).
* Bletchley Park plays a significant role in Connie Willis' novel All Clear (2010).
* The Agatha Christie novel N or M?, published in 1941, was about spies during the Second World War and featured a character called Major Bletchley. Christie was friends with one of the code-breakers at Bletchley Park, and MI5 thought that the character name might have been a joke indicating that she knew what was happening there. It turned out to be a coincidence.
*Bletchley Park is the setting of Kate Quinn's 2021 historical fiction novel, The Rose Code. Quinn used the likenesses of true veterans of Bletchley Park as inspiration for her story of three women who worked in some of the different areas at Bletchley Park.
Film
model used in the film Enigma (2001)]]
(2001)]]
* The film Enigma'' (2001), which was based upon Robert Harris's book and starred Kate Winslet, Saffron Burrows and Dougray Scott, is set in part in Bletchley Park.
* The film The Imitation Game (2014), starring Benedict Cumberbatch as Alan Turing, is set in Bletchley Park, and was partially filmed there.Radio* The radio show Hut 33 is a situation comedy set in the fictional 33rd Hut of Bletchley Park.
* The Big Finish Productions Doctor Who audio Criss-Cross, released in September 2015, features the Sixth Doctor working undercover in Bletchley Park to decode a series of strange alien signals that have hindered his TARDIS, the audio also depicting his first meeting with his new companion Constance Clarke.
* The Bletchley Park Podcast began in August 2012, with new episodes being released approximately monthly. It features stories told by the codebreakers, staff and volunteers, audio from events and reports on the development of Bletchley Park.
Television
* The 1979 ITV television serial Danger UXB features the character Steven Mount, a codebreaker at Bletchley who is driven to a nervous breakdown (and eventual suicide) by the stressful and repetitive nature of the work.
* In the TV series ''Foyle's War'', Adam Wainwright (Samantha Stewart's fiancé, then husband) is a former Bletchley Park codebreaker.
* The Second World War code-breaking sitcom pilot "Satsuma & Pumpkin" was recorded at Bletchley Park in 2003 and featured Bob Monkhouse in his last screen role. The BBC declined to produce the show and develop it further before creating effectively the same show on Radio 4 several years later, featuring some of the same cast, entitled Hut 33.
* Bletchley came to wider public attention with the documentary series Station X (1999).
* The 2012 ITV programme The Bletchley Circle is a set of murder mysteries set in 1952 and 1953. The protagonists are four female former Bletchley codebreakers, who use their skills to solve crimes. The pilot episode's opening scene was filmed on-site, and the set was asked to remain there for its close adaptation of historiography.
*The 2018 programme The Bletchley Circle: San Francisco is a spin-off of The Bletchley Circle. It takes place in San Francisco and features two characters from the original series.
* Ian McEwan's television play The Imitation Game (1980) concludes at Bletchley Park.
* Bletchley Park was featured in the sixth and final episode of the BBC TV documentary The Secret War (1977), presented and narrated by William Woodard. This episode featured interviews with Gordon Welchman, Harry Golombek, Peter Calvocoressi, F. W. Winterbotham, Max Newman, Jack Good, and Tommy Flowers.
* The Agent Carter season 2 episode "Smoke & Mirrors" reveals that Agent Peggy Carter worked at Bletchley Park early in the war before joining the Strategic Scientific Reserve.Theatre* The play Breaking the Code (1986) is set at Bletchley Park.Location
Bletchley Park is opposite Bletchley railway station. It is close to junctions 13 and 14 of the M1, about northwest of London.
See also
*
*
*
* in Hong Kong prewar, then Singapore, Colombo (Ceylon) and Kilindini (Kenya)
*
*
*
*
* , based in Washington, D.C.
*
* Wireless Experimental Centre operated by the Intelligence Corps outside Delhi
*
* , made the "Bletchley Declaration".
Notes and references
Notes
References
Bibliography
Sources
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* 1945 | place London | publisher Random House | orig-year 1994 | year 1999 | edition New and Enlarged | isbn = 978-0-7126-6521-6 }}
*
*
*
*
*
*
* in 56}}
*
* Updated and extended version of Action This Day: From Breaking of the Enigma Code to the Birth of the Modern Computer Bantam Press 2001
* in 83}}
* That version is a facsimile copy, but there is a transcript of much of this document in '.pdf' format at: , and a web transcript of Part 1 at:
*
*
* Transcript of a lecture given on Tuesday 19 October 1993 at Cambridge University
*
* 1943 | publisher Houghton Mifflin Co. | isbn = 978-0-395-42739-2 }}
*
*
* in 63}}
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* in 29 }}
* in 99}}
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* 1945 | publisher Universal Publishing Solutions Online Ltd | isbn 978-1-84375-252-3 | year 2003 }}
* <!-- prev 2000, 2004, 2011; 2017 - 75th anniv edition with new material -->
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* 1945 | journal Cryptologia | volume 21 | issue 2 | pages 14957 |dateApril 1997 | doi = 10.1080/0161-119791885878 }}
*
*
*
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* in 35}}
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* in 3}}
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* in 31}}
* in 10}}
* New edition with addendum by Welchman correcting his misapprehensions in the 1982 edition.
Further reading
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* 1945 |year1988 |urlhttps://www.ams.org/online_bks/hmath1/hmath1-hilton22.pdf |archive-urlhttps://web.archive.org/web/20060515081156/http://www.ams.org/online_bks/hmath1/hmath1-hilton22.pdf |url-statusdead |archive-date15 May 2006 |pages291301 |access-date13 September 2009 }} <small>(CAPTCHA)</small> (10-page preview from A Century of mathematics in America, Volume 1 By Peter L. Duren, Richard Askey, Uta C. Merzbach, see [https://www.ams.org/bookstore-getitem/item=HMATH-1 A Century of Mathematics in America: Part 1]; ).
*
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* 1945 | journal Women's History Magazine | volume 76 | pages 3036 |date2014 | issn 1476-6760 }}
* 222 |date2014 |doi10.1177/0073275314529861 |s2cid145181963 |url=https://pureportal.coventry.ac.uk/en/publications/how-i-learned-to-stop-worrying-and-love-the-bombe(22dbdd7e-6888-4693-9198-659f11fa9f3b).html }}
*
*
External links
* [http://www.bletchleypark.org.uk/ Bletchley Park Trust]
*
* [http://www.codesandciphers.org.uk/bletchleypark/ Bletchley Park—Virtual Tour] by Tony Sale
* [http://www.tnmoc.org/ The National Museum of Computing (based at Bletchley Park)]
* [http://www.nationalradiocentre.com/ The RSGB National Radio Centre (based at Bletchley Park)]
* (The Daily Telegraph 3 March 1997)
* [http://www.boffoonery.com/ Boffoonery! Comedy Benefit For Bletchley Park] Comedians and computing professionals stage comedy show in aid of Bletchley Park
* [https://www.telegraph.co.uk/travel/destinations/europe/uk/6103805/Bletchley-Park-Its-no-secret-just-an-Enigma.html Bletchley Park: It's No Secret, Just an Enigma, The Telegraph, 29 August 2009]
* [https://web.archive.org/web/20170925063249/http://www.shedblog.co.uk/2009/09/19/bletchley-park-is-the-official-charity-for-shed-week-2010-bpark-shedweek/ Bletchley Park is official charity of Shed Week 2010]—in recognition of the work done in the [https://web.archive.org/web/20090516183838/http://www.readersheds.co.uk/share.cfm?SHARESHED=2159 Huts]
* [https://web.archive.org/web/20081109070803/http://savingbletchleypark.org/ Saving Bletchley Park] blog by Sue Black
* with Sue Black by Robert Llewellyn about Bletchley Park
*
* [http://bobmeades-ivil.tripod.com/id13.html C4 Station X 1999 on DVD here]
* [http://www.iwm.org.uk/history/how-alan-turing-cracked-the-enigma-code How Alan Turing Cracked The Enigma Code] Imperial War Museums
* [https://audioboom.com/channel/bletchley-park The Bletchley Park Podcast] on Audioboom
* [http://www.vintage-icl-computers.com/Bletchley-Park Bletchley Park Paperwork at The ICL Computer Museum]
*[https://www.thebritishacademy.ac.uk/publishing/memoirs/humanities-scholars-who-worked-military-intelligence-second-world-war/ Humanities scholars who worked in military intelligence in the Second World War]
Maps
*[https://www.computerhistory.org/collections/catalog/102652255 Map of Bletchley Park site, as used during World War II]
*[https://www.themaparchive.com/product/bletchley-park-193945/ Map of Bletchley Park site, as used 1939-1945]
*[https://interactivemap.bletchleypark.org.uk/ Bletchley Park - Interactive Map]
*[https://www.cryptomuseum.com/bp/ Map of Bletchley Park site, as used in 2024]
*[https://bletchleypark.org.uk/wp-content/uploads/2023/03/Map_Digital_2.pdf View of Bletchley Park site, in 2024]
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Category:Buildings and structures in Milton Keynes | https://en.wikipedia.org/wiki/Bletchley_Park | 2025-04-05T18:26:40.461406 |
4041 | Bede | Anglican Communion, and Lutheranism
|image=E-codices bke-0047 001v medium (cropped).jpg
|caption=The Venerable Bede writing. Detail from a 12th-century codex.
|birth_placeKingdom of Northumbria, possibly Monkwearmouth in present-day Sunderland, Tyne and Wear, England and Bede implies that he was then in his fifty-ninth year, which would give a birth date in 672 or 673. In Bede's thirtieth year (about 702), he became a priest, with the ordination again performed by Bishop John.
Bede may have worked on some of the Latin Bibles that were copied at Jarrow, one of which, the Codex Amiatinus, is now held by the Laurentian Library in Florence. Bede was a teacher as well as a writer; he enjoyed music and was said to be accomplished as a singer and as a reciter of poetry in the vernacular. The standard theological view of world history at the time was known as the Six Ages of the World; in his book, Bede calculated the age of the world for himself, rather than accepting the authority of Isidore of Seville, and came to the conclusion that Christ had been born 3,952 years after the creation of the world, rather than the figure of over 5,000 years that was commonly accepted by theologians. The accusation occurred in front of the bishop of Hexham, Wilfrid, who was present at a feast when some drunken monks made the accusation. Wilfrid did not respond to the accusation, but a monk present relayed the episode to Bede, who replied within a few days to the monk, writing a letter setting forth his defence and asking that the letter also be read to Wilfrid.
In 733, Bede travelled to York to visit Ecgbert, who was then bishop of York. The See of York was elevated to an archbishopric in 735, and it is likely that Bede and Ecgbert discussed the proposal for the elevation during his visit. Bede also travelled to the monastery of Lindisfarne and at some point visited the otherwise unknown monastery of a monk named , a visit that is mentioned in a letter to that monk. Because of his widespread correspondence with others throughout the British Isles, and because many of the letters imply that Bede had met his correspondents, it is likely that Bede travelled to some other places, although nothing further about timing or locations can be guessed.
It seems certain that he did not visit Rome, however, as he did not mention it in the autobiographical chapter of his Historia Ecclesiastica. Nothhelm, a correspondent of Bede's who assisted him by finding documents for him in Rome, is known to have visited Bede, though the date cannot be determined beyond the fact that it was after Nothhelm's visit to Rome. Except for a few visits to other monasteries, his life was spent in a round of prayer, observance of the monastic discipline and study of the Sacred Scriptures. He was considered the most learned man of his time.
at the west end of Durham Cathedral]]
Bede died at Jarrow on the Feast of the Ascension, 26 May 735 and was buried there. The account of Cuthbert does not make entirely clear whether Bede died before midnight or after. However, by the reckoning of Bede's time, passage from the old day to the new occurred at sunset, not midnight, and Cuthbert is clear that he died after sunset. Thus, while his box was brought at three o'clock Wednesday afternoon of 25 May, by the time of the final dictation it was considered 26 May, although it might still have been 25 May in modern usage.
Cuthbert's letter also relates a five-line poem in the vernacular that Bede composed on his deathbed, known as "Bede's Death Song". It is the most-widely copied Old English poem and appears in 45 manuscripts, but its attribution to Bede is not certain—not all manuscripts name Bede as the author, and the ones that do are of later origin than those that do not. Bede's remains may have been translated to Durham Cathedral in the 11th century; his tomb there was looted in 1541, but the contents were probably re-interred in the Galilee chapel at the cathedral. The section in question is the only one in that work that is written in first-person view. Bede says: "Prayers are hindered by the conjugal duty because as often as I perform what is due to my wife I am not able to pray." Another passage, in the Commentary on Luke, also mentions a wife in the first person: "Formerly I possessed a wife in the lustful passion of desire and now I possess her in honourable sanctification and true love of Christ." Works
Bede wrote scientific, historical and theological works, reflecting the range of his writings from music and metrics to exegetical Scripture commentaries. He knew patristic literature, as well as Pliny the Elder, Virgil, Lucretius, Ovid, Horace and other classical writers. He knew some Greek. Bede's scriptural commentaries employed the allegorical method of interpretation, and his history includes accounts of miracles, which to modern historians has seemed at odds with his critical approach to the materials in his history. Modern studies have shown the important role such concepts played in the world-view of early medieval scholars. Although Bede is mainly studied as a historian now, in his time his works on grammar, chronology, and biblical studies were as important as his historical and hagiographical works. The non-historical works contributed greatly to the Carolingian Renaissance. He has been credited with writing a penitential, though his authorship of this work is disputed. Ecclesiastical History of the English People
'', from a 12th-century codex at Engelberg Abbey, Switzerland]]
Bede's best-known work is the , or An Ecclesiastical History of the English People, completed in about 731. Bede was aided in writing this book by Albinus, abbot of St Augustine's Abbey, Canterbury. The first of the five books begins with some geographical background and then sketches the history of England, beginning with Caesar's invasion in 55 BC. A brief account of Christianity in Roman Britain, including the martyrdom of St Alban, is followed by the story of Augustine's mission to England in 597, which brought Christianity to the Anglo-Saxons. These ended in disaster when Penda, the pagan king of Mercia, killed the newly Christian Edwin of Northumbria at the Battle of Hatfield Chase in about 632. The climax of the third book is the account of the Council of Whitby, traditionally seen as a major turning point in English history. The fourth book begins with the consecration of Theodore as Archbishop of Canterbury and recounts Wilfrid's efforts to bring Christianity to the Kingdom of Sussex.
The fifth book brings the story up to Bede's day and includes an account of missionary work in Frisia and of the conflict with the British church over the correct dating of Easter. The preface mentions that Ceolwulf received an earlier draft of the book; presumably Ceolwulf knew enough Latin to understand it, and he may even have been able to read it. It has been estimated that there were about 200 books in the monastic library.
For the period prior to Augustine's arrival in 597, Bede drew on earlier writers, including Solinus. He had access to two works of Eusebius: the Historia Ecclesiastica, and also the Chronicon, though he had neither in the original Greek; instead he had a Latin translation of the Historia, by Rufinus, and Jerome's translation of the Chronicon. He also knew Orosius's Adversus Paganus, and Gregory of Tours' Historia Francorum, both Christian histories, He used Constantius's Life of Germanus as a source for Germanus's visits to Britain. Bede would also have been familiar with more recent accounts such as Stephen of Ripon's Life of Wilfrid, and anonymous Life of Gregory the Great and Life of Cuthbert. and there was a copy of the Liber Pontificalis in Bede's monastery. Bede quotes from several classical authors, including Cicero, Plautus, and Terence, but he may have had access to their work via a Latin grammar rather than directly. However, it is clear he was familiar with the works of Virgil and with Pliny the Elder's Natural History, and his monastery also owned copies of the works of Dionysius Exiguus. He also had access to a life of Ceolfrith. Some of Bede's material came from oral traditions, including a description of the physical appearance of Paulinus of York, who had died nearly 90 years before Bede's Historia Ecclesiastica was written. Almost all of Bede's information regarding Augustine is taken from these letters. he was in contact with Bishop Daniel of Winchester, for information about the history of the church in Wessex and also wrote to the monastery at Lastingham for information about Cedd and Chad. Most of Bede's informants for information after Augustine's mission came from the eastern part of Britain, leaving significant gaps in the knowledge of the western areas, which were those areas likely to have a native Briton presence.
Models and style
Bede's stylistic models included some of the same authors from whom he drew the material for the earlier parts of his history. His introduction imitates the work of Orosius, Bede quoted his sources at length in his narrative, as Eusebius had done.
Bede's work as a hagiographer and his detailed attention to dating were both useful preparations for the task of writing the Historia Ecclesiastica. His interest in computus, the science of calculating the date of Easter, was also useful in the account he gives of the controversy between the British and Anglo-Saxon church over the correct method of obtaining the Easter date. His Latin has been praised for its clarity, but his style in the Historia Ecclesiastica is not simple. He knew rhetoric and often used figures of speech and rhetorical forms which cannot easily be reproduced in translation, depending as they often do on the connotations of the Latin words. However, unlike contemporaries such as Aldhelm, whose Latin is full of difficulties, Bede's own text is easy to read. In the words of Charles Plummer, one of the best-known editors of the Historia Ecclesiastica, Bede's Latin is "clear and limpid ... it is very seldom that we have to pause to think of the meaning of a sentence ... Alcuin rightly praises Bede for his unpretending style."
Intent
Bede's primary intention in writing the Historia Ecclesiastica was to show the growth of the united church throughout England. The native Britons, whose Christian church survived the departure of the Romans, earn Bede's ire for refusing to help convert the Anglo-Saxons; by the end of the Historia the English, and their church, are dominant over the Britons. This goal, of showing the movement towards unity, explains Bede's animosity towards the British method of calculating Easter: much of the Historia is devoted to a history of the dispute, including the final resolution at the Synod of Whitby in 664.
Omissions and biases
Bede is somewhat reticent about the career of Wilfrid, a contemporary and one of the most prominent clerics of his day. This may be because Wilfrid's opulent lifestyle was uncongenial to Bede's monastic mind; it may also be that the events of Wilfrid's life, divisive and controversial as they were, simply did not fit with Bede's theme of the progression to a unified and harmonious church.
Bede was a Northumbrian, and this tinged his work with a local bias. The sources to which he had access gave him less information about the west of England than for other areas. He says relatively little about the achievements of Mercia and Wessex, omitting, for example, any mention of Boniface, a West Saxon missionary to the continent of some renown and of whom Bede had almost certainly heard, though Bede does discuss Northumbrian missionaries to the continent. He is also parsimonious in his praise for Aldhelm, a West Saxon who had done much to convert the native Britons to the Roman form of Christianity. He lists seven kings of the Anglo-Saxons whom he regards as having held imperium, or overlordship; only one king of Wessex, Ceawlin, is listed as Bretwalda, and none from Mercia, though elsewhere he acknowledges the secular power several of the Mercians held. Historian Robin Fleming states that he was so hostile to Mercia because Northumbria had been diminished by Mercian power that he consulted no Mercian informants and included no stories about its saints.
Bede relates the story of Augustine's mission from Rome, and tells how the British clergy refused to assist Augustine in the conversion of the Anglo-Saxons. This, combined with Gildas's negative assessment of the British church at the time of the Anglo-Saxon invasions, led Bede to a very critical view of the native church. However, Bede ignores the fact that at the time of Augustine's mission, the history between the two was one of warfare and conquest, which, in the words of Barbara Yorke, would have naturally "curbed any missionary impulses towards the Anglo-Saxons from the British clergy."
Use of Anno Domini
At the time Bede wrote the Historia Ecclesiastica, there were two common ways of referring to dates. One was to use indictions, which were 15-year cycles, counting from 312 AD. There were three different varieties of indiction, each starting on a different day of the year. The other approach was to use regnal years—the reigning Roman emperor, for example, or the ruler of whichever kingdom was under discussion. This meant that in discussing conflicts between kingdoms, the date would have to be given in the regnal years of all the kings involved. Bede used both these approaches on occasion but adopted a third method as his main approach to dating: the Anno Domini method invented by Dionysius Exiguus. Although Bede did not invent this method, his adoption of it and his promulgation of it in De Temporum Ratione, his work on chronology, is the main reason it is now so widely used. Bede's Easter table, contained in De Temporum Ratione, was developed from Dionysius Exiguus' Easter table. Assessment The Historia Ecclesiastica was copied often in the Middle Ages, and about 160 manuscripts containing it survive. About half of those are located on the European continent, rather than in the British Isles. This total does not include manuscripts with only a part of the work, of which another 100 or so survive. It was printed for the first time between 1474 and 1482, probably at Strasbourg.
Modern historians have studied the Historia extensively, and several editions have been produced.
Modern historians and editors of Bede have been lavish in their praise of his achievement in the Historia Ecclesiastica. Stenton regards it as one of the "small class of books which transcend all but the most fundamental conditions of time and place", and regards its quality as dependent on Bede's "astonishing power of co-ordinating the fragments of information which came to him through tradition, the relation of friends, or documentary evidence ... In an age where little was attempted beyond the registration of fact, he had reached the conception of history." Patrick Wormald describes him as "the first and greatest of England's historians".
The Historia Ecclesiastica has given Bede a high reputation, but his concerns were different from those of a modern writer of history. Early modern writers, such as Polydore Vergil and Matthew Parker, the Elizabethan Archbishop of Canterbury, also utilised the Historia, and his works were used by both Protestant and Catholic sides in the wars of religion.
Some historians have questioned the reliability of some of Bede's accounts. One historian, Charlotte Behr, thinks that the ''Historia's'' account of the arrival of the Germanic invaders in Kent should not be considered to relate what actually happened, but rather relates myths that were current in Kent during Bede's time.
It is likely that Bede's work, because it was so widely copied, discouraged others from writing histories and may even have led to the disappearance of manuscripts containing older historical works. Other historical works presenting the work to the saint. This manuscript was given to St Cuthbert's shrine in 934.]] Chronicles As Chapter 66 of his On the Reckoning of Time, in 725 Bede wrote the Greater Chronicle (chronica maiora), which sometimes circulated as a separate work. For recent events the Chronicle, like his Ecclesiastical History, relied upon Gildas, upon a version of the Liber Pontificalis current at least to the papacy of Pope Sergius I (687–701), and other sources. For earlier events he drew on Eusebius's Chronikoi Kanones. The dating of events in the Chronicle is inconsistent with his other works, using the era of creation, the Anno Mundi. Hagiography His other historical works included lives of the abbots of Wearmouth and Jarrow, as well as verse and prose lives of St Cuthbert, an adaptation of Paulinus of Nola's Life of St Felix, and a translation of the Greek Passion of St Anastasius. He also created a listing of saints, the Martyrology. Theological works In his own time, Bede was as well known for his biblical commentaries, and for his exegetical and other theological works. The majority of his writings were of this type and covered the Old Testament and the New Testament. Most survived the Middle Ages, but a few were lost. It was for his theological writings that he earned the title of Doctor Anglorum and why he was declared a saint.
Bede synthesised and transmitted the learning from his predecessors, as well as made careful, judicious innovation in knowledge (such as recalculating the age of the Earth—for which he was censured before surviving the heresy accusations and eventually having his views championed by Archbishop Ussher in the sixteenth century—see below) that had theological implications. In order to do this, he learned Greek and attempted to learn Hebrew. He spent time reading and rereading both the Old and the New Testaments. He mentions that he studied from a text of Jerome's Vulgate, which itself was from the Hebrew text. It is clear from Bede's own comments that he felt his calling was to explain to his students and readers the theology and thoughts of the Church Fathers.
Bede also wrote homilies, works written to explain theology used in worship services. He wrote homilies on the major Christian seasons such as Advent, Lent, or Easter, as well as on other subjects such as anniversaries of significant events. Commentary on the Catholic Epistles, Commentary on Acts, Reconsideration on the Books of Acts, On the Gospel of Mark, On the Gospel of Luke, and Homilies on the Gospels. At the time of his death he was working on a translation of the Gospel of John into English. He did this for the last 40 days of his life. When the last passage had been translated he said: "All is finished." Commentary on Genesis, Commentaries on Ezra and Nehemiah, On the Temple, On the Tabernacle, Commentaries on Tobit, Commentaries on Proverbs, Commentaries on the Song of Songs, Commentaries on the Canticle of Habakkuk. The works on Ezra, the tabernacle and the temple were especially influenced by Gregory the Great's writings. Historical and astronomical chronology De temporibus, or On Time, written in about 703, provides an introduction to the principles of Easter computus. This was based on parts of Isidore of Seville's Etymologies, and Bede also included a chronology of the world which was derived from Eusebius, with some revisions based on Jerome's translation of the Bible. He also wrote several shorter letters and essays discussing specific aspects of computus.
On the Reckoning of Time (De temporum ratione) included an introduction to the traditional ancient and medieval view of the cosmos, including an explanation of how the spherical Earth influenced the changing length of daylight, of how the seasonal motion of the Sun and Moon influenced the changing appearance of the new moon at evening twilight. Bede also records the effect of the moon on tides. He shows that the twice-daily timing of tides is related to the Moon and that the lunar monthly cycle of spring and neap tides is also related to the Moon's position. He goes on to note that the times of tides vary along the same coast and that the water movements cause low tide at one place when there is high tide elsewhere. Since the focus of his book was the computus, Bede gave instructions for computing the date of Easter from the date of the Paschal full moon, for calculating the motion of the Sun and Moon through the zodiac, and for many other calculations related to the calendar. He gives some information about the months of the Anglo-Saxon calendar.
Any codex of Bede's Easter table is normally found together with a codex of his De temporum ratione. His Easter table, being an exact extension of Dionysius Exiguus' Paschal table and covering the time interval AD 532–1063, contains a 532-year Paschal cycle based on the so-called classical Alexandrian 19-year lunar cycle, being the close variant of bishop Theophilus' 19-year lunar cycle proposed by Annianus and adopted by bishop Cyril of Alexandria around AD 425. The ultimate similar (but rather different) predecessor of this Metonic 19-year lunar cycle is the one invented by Anatolius around AD 260.
For calendric purposes, Bede made a new calculation of the age of the world since the creation, which he dated as 3952 BC. Because of his innovations in computing the age of the world, he was accused of heresy at the table of Bishop Wilfrid, his chronology being contrary to accepted calculations. Once informed of the accusations of these "lewd rustics", Bede refuted them in his Letter to Plegwin.
In addition to these works on astronomical timekeeping, he also wrote De natura rerum, or On the Nature of Things, modelled in part after the work of the same title by Isidore of Seville. His works were so influential that late in the ninth century Notker the Stammerer, a monk of the Monastery of St Gall in Switzerland, wrote that "God, the orderer of natures, who raised the Sun from the East on the fourth day of Creation, in the sixth day of the world has made Bede rise from the West as a new Sun to illuminate the whole Earth".
Educational works
Bede wrote some works designed to help teach grammar in the abbey school. One of these was De arte metrica, a discussion of the composition of Latin verse, drawing on previous grammarians' work. It was based on Donatus's De pedibus and Servius's De finalibus and used examples from Christian poets as well as Virgil. It became a standard text for the teaching of Latin verse during the next few centuries. Bede dedicated this work to Cuthbert, apparently a student, for he is named "beloved son" in the dedication, and Bede says "I have laboured to educate you in divine letters and ecclesiastical statutes." De orthographia is a work on orthography, designed to help a medieval reader of Latin with unfamiliar abbreviations and words from classical Latin works. Although it could serve as a textbook, it appears to have been mainly intended as a reference work. The date of composition for both of these works is unknown.
De schematibus et tropis sacrae scripturae discusses the Bible's use of rhetoric. Similarly, his text on poetic metre uses only Christian poetry for examples.
Vernacular poetry
According to his disciple Cuthbert, Bede was doctus in nostris carminibus'' ("learned in our songs"). Cuthbert's letter on Bede's death, the Epistola Cuthberti de obitu Bedae, moreover, commonly is understood to indicate that Bede composed a five-line vernacular poem known to modern scholars as ''Bede's Death Song''
|
Facing that enforced journey, no man can be
More prudent than he has good call to be,
If he consider, before his going hence,
What for his spirit of good hap or of evil
After his day of death shall be determined.}} }}
As Opland notes, however, it is not entirely clear that Cuthbert is attributing this text to Bede: most manuscripts of the latter do not use a finite verb to describe Bede's presentation of the song, and the theme was relatively common in Old English and Anglo-Latin literature. The fact that Cuthbert's description places the performance of the Old English poem in the context of a series of quoted passages from Sacred Scripture might be taken as evidence simply that Bede also cited analogous vernacular texts.
On the other hand, the inclusion of the Old English text of the poem in Cuthbert's Latin letter, the observation that Bede "was learned in our song," and the fact that Bede composed a Latin poem on the same subject all point to the possibility of his having written it. By citing the poem directly, Cuthbert seems to imply that its particular wording was somehow important, either since it was a vernacular poem endorsed by a scholar who evidently frowned upon secular entertainment or because it is a direct quotation of Bede's last original composition.
Veneration
, Chennai]]
There is no evidence for cult being paid to Bede in England in the 8th century. One reason for this may be that he died on the feast day of Augustine of Canterbury. Later, when he was venerated in England, he was either commemorated after Augustine on 26 May, or his feast was moved to 27 May. However, he was venerated outside England, mainly through the efforts of Boniface and Alcuin, both of whom promoted the cult on the continent. Boniface wrote repeatedly back to England during his missionary efforts, requesting copies of Bede's theological works.
Alcuin, who was taught at the school set up in York by Bede's pupil Ecgbert, praised Bede as an example for monks to follow and was instrumental in disseminating Bede's works to all of Alcuin's friends.
His body was 'translated' (the ecclesiastical term for relocation of relics) from Jarrow to Durham Cathedral around 1020, where it was placed in the same tomb with St Cuthbert. Later Bede's remains were moved to a shrine in the Galilee Chapel at Durham Cathedral in 1370. The shrine was destroyed during the English Reformation, but the bones were reburied in the chapel. In 1831 the bones were dug up and then reburied in a new tomb, which is still there. Other relics were claimed by York, Glastonbury
His scholarship and importance to Catholicism were recognised in 1899 when the Vatican declared him a Doctor of the Church. He is the only Englishman named a Doctor of the Church. and in the Episcopal Church (United States) on 25 May, and in the Eastern Orthodox Church, with a feast day on 27 May (Βεδέα του Ομολογητού).
Bede became known as Venerable Bede (Latin: ) by the 9th century because of his holiness, ("Here in this grave are the bones of ... Bede") before heading off to bed. In the morning an angel had inserted the word .}} It is first utilised in connection with Bede in the 9th century, where Bede was grouped with others who were called "venerable" at two ecclesiastical councils held at Aachen in 816 and 836. Paul the Deacon then referred to him as venerable consistently. By the 11th and 12th century, it had become commonplace.
Modern legacy
'', 1493]]Bede's reputation as a historian, based mostly on the Historia Ecclesiastica, remains strong. Walter Goffart says of Bede that he "holds a privileged and unrivalled place among first historians of Christian Europe". He is patron of Beda College in Rome which prepares older men for the Roman Catholic priesthood. His life and work have been celebrated with the annual Jarrow Lecture, held at St Paul's Church, Jarrow, since 1958.
Bede has been described as a progressive scholar, who made Latin and Greek teachings accessible to his fellow Anglo-Saxons.
Jarrow Hall (formerly Bede's World), in Jarrow, is a museum that documents the history of Bede and other parts of English heritage, on the site where he lived.
Bede Metro station, part of the Tyne and Wear Metro light rail network, is named after him.
See also
* List of manuscripts of Bede's Historia Ecclesiastica
* List of works by Bede
* Medieval ecclesiastic historiography
*
Notes
References
Sources
Primary sources
*
* |editor-lastPlummer |editor-firstC |titleHist. eccl. · Venerabilis Baedae opera historica |year1896 |volume=2 vols}}
* |editorColgrave, Bertram |editor-linkBertram Colgrave |editor2Mynors, R.A.B. |editor2-linkR. A. B. Mynors |titleBede's Ecclesiastical History of the English People |location Oxford |publisherClarendon Press|year1969 |isbn978-0-19-822202-6|title-linkHistoria ecclesiastica gentis Anglorum }} (Parallel Latin text and English translation with English notes.)
*|publisherCistercian Publications|isbn=9780879078829}}
* |titleEcclesiastical History of the English People|translatorLeo Sherley-Price |othersRevised by R.E. Latham |editorD. H. Farmer |locationLondon |publisherPenguin |year1991 |isbn978-0-14-044565-7|title-link=Historia ecclesiastica gentis Anglorum }}
* |editor1Kendall, Calvin B. |titleLibri II De Arte Metrica et De Schematibus et Tropis|authorBede|locationSaarbrücken|publisherAQ-Verlag|year1991 |isbn 978-3-922441-60-1}}
* |editor1McClure, Judith |editor2Collins, Roger |titleThe Ecclesiastical History of the English People|authorBede|location Oxford |publisherOxford University Press|year 1994 |isbn978-0-19-283866-7|title-linkHistoria ecclesiastica gentis Anglorum }}
* |editor Jones, C.W.|authorBede |titleBedae Opera de Temporibus|locationCambridge, MA |publisherMediaeval Academy of America |year=1943}}
* |translatorWallis, Faith |titleBede: The Reckoning of Time |locationLiverpool |publisherLiverpool University Press |year2004 |isbn 978-0-85323-693-1}}
* | translator-last Holder| translator-first Arthur G. | year 2011| title On the Song of Songs and selected writings | publisher Paulist Press | place New York | series The Classics of Western Spirituality | isbn 978-0-8091-4700-7
}} (contains translations of On the Song of Songs, Homilies on the Gospels and selections from the Ecclesiastical history of the English people).
* }}
Secondary sources
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* |titleRoyal and Ecclesiastical rivalries in Bede's History|journalRenascence |year1999|volume51 |issue1|pages19–33|doi10.5840/renascence19995213 }}
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* |titleThe Oxford Dictionary of Saints |publisherOxford University Press |year2004 |editionFifth |locationOxford|isbn= 978-0-19-860949-0}}
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* |titleBede the Theologian |encyclopediaThe Medieval Theologians: An Introduction to Theology in the Medieval Period |editorEvans, G.R. |publisherBlackwell Publishing |locationMalden, MA |year2001 |isbn978-0-631-21203-4| pages=57–64 }}
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Further reading
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External links
* [https://dcc.dickinson.edu/bede-historia-ecclesiastica/intro/preface Dickinson College Commentaries: Historia Ecclēsiastica]
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* [https://web.archive.org/web/20160201211451/http://www.bedesworld.co.uk/ Bede's World: the museum of early medieval Northumbria at Jarrow]
* [http://www.bbc.co.uk/radio4/history/inourtime/inourtime_20041125.shtml The Venerable Bede] from In Our Time (BBC Radio 4)
* [https://sourcebooks.fordham.edu/basis/bede-book1.asp Ecclesiastical History of the English People], Books 1–5, L.C. Jane's 1903 Temple Classics translation. From the Internet Medieval Sourcebook.
* [https://www.ccel.org/ccel/bede/history.pdf Bede's Ecclesiastical History and the Continuation of Bede (pdf)], at CCEL, edited & translated by A.M. Sellar.
* [https://web.archive.org/web/20070804064713/http://oll.libertyfund.org/index.php?optioncom_staticxt&staticfileshow.php%3Fperson4039&Itemid28 Saint Bede], complete works, in Latin, with historical works also in English at The Online Library of Liberty
* [https://www.janzuidhoek.net/Recondiony.htm Dionysius Exiguus' Paschal table]
}}
Category:673 births
Category:735 deaths
Category:7th-century Christian monks
Category:7th-century Christian theologians
Category:8th-century Christian monks
Category:8th-century historians
Category:8th-century Christian theologians
Category:8th-century writers in Latin
Category:Anglo-Saxon monks
Category:Anglo-Saxon poets
Category:Benedictine biblical scholars
Category:Benedictine theologians
Category:Benedictine writers
Category:Bible translators
Category:Translators of the Bible into Old English
Category:Burials at Monkwearmouth-Jarrow Abbey
Category:Christian hagiographers
Category:English Christian theologians
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Category:Doctors of the Church
Category:English Benedictines
Category:English chroniclers
Category:Hagiographers
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Category:8th-century English writers
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Category:English Roman Catholic saints
Category:History of Catholicism in England
Category:Lutheran saints | https://en.wikipedia.org/wiki/Bede | 2025-04-05T18:26:40.527050 |
4045 | Bubble tea | Bubble tea (also known as pearl milk tea, bubble milk tea, tapioca milk tea, boba tea, or boba; , ) is a tea-based drink most often containing chewy tapioca balls, milk, and flavouring. It originated in Taiwan in the early 1980s and spread to other countries where there is a large East Asian diaspora population.
Bubble tea is most commonly made with tapioca pearls (also known as "boba" or "balls"), but it can be made with other toppings as well, such as grass jelly, aloe vera, red bean, and popping boba. It has many varieties and flavours, but the two most popular varieties are pearl black milk tea and pearl green milk tea ("pearl" for the tapioca balls at the bottom).
Description
Bubble teas fall under two categories: teas without milk and milk teas. Both varieties come with a choice of black, green, or oolong tea as the base.
The oldest known bubble tea drink consisted of a mixture of hot Taiwanese black tea, tapioca pearls (), condensed milk, and syrup () or honey. Bubble tea is most commonly served cold. which was introduced to Taiwan from South America during Japanese colonial rule. Larger pearls () quickly replaced these.
Some cafés specialize in bubble tea production. While some cafés may serve bubble tea in a glass, most Taiwanese bubble tea shops serve the drink in a plastic cup and use a machine to seal the top of the cup with heated plastic cellophane. The method allows the tea to be shaken in the serving cup and makes it spill-free until a person is ready to drink it. The cellophane is then pierced with an oversized straw, referred to as a boba straw, which is larger than a typical drinking straw to allow the toppings to pass through.
Due to its popularity, bubble tea has inspired a variety of bubble tea flavoured snacks, such as bubble tea ice cream and bubble tea candy. The market size of bubble tea was valued at in 2022 and is projected to reach by the end of 2027. Some of the largest global bubble tea chains include Chatime, CoCo Fresh Tea & Juice and Gong Cha.Variants Drink Bubble tea comes in many variations which usually consist of black tea, green tea, oolong tea, and sometimes white tea. mango, coffee, and coconut. Flavouring ingredients such as a syrup or powder determines the flavour and usually the colour of the bubble tea, while other ingredients such as tea, milk, and boba are the basis. Toppings Tapioca pearls (boba) are the most common ingredient, although there are other ways to make the chewy spheres found in bubble tea.
Jelly comes in different shapes: small cubes, stars, or rectangular strips, and flavours such as coconut jelly, konjac, lychee, grass jelly, mango, coffee, and green tea. Azuki bean or mung bean paste, typical toppings for Taiwanese shaved ice desserts, give bubble tea an added subtle flavour as well as texture. Aloe, egg pudding (custard), and sago also can be found in many bubble tea shops. Popping boba, or spheres that have fruit juices or syrups inside them, are another popular bubble tea topping. Flavours include mango, strawberry, coconut, kiwi, and honey melon.
Some shops offer milk or cheese foam on top of the drink, giving the drink a consistency similar to that of whipped cream, and a saltier flavour profile. One shop described the effect of the cheese foam as "neutraliz[ing] the bitterness of the tea...and as you drink it you taste the returning sweetness of the tea."
Ice and sugar level
Bubble tea shops often give customers the option of choosing the amount of ice or sugar in their drink. Ice levels are usually specified ordinally (e.g., no ice, less ice, normal ice, more ice), and sugar levels in quarterly intervals (e.g., 0%, 25%, 50%, 75%, 100%). and other shapes. Some have used sealed plastic bags. Nevertheless, the plastic takeaway cup with a sealed cap is still the most common packaging method.
Preparation method
The tea can be made in batches during the day or the night before. Brewing different types of teas take different amounts of time and temperature. For instance, green tea requires brewing at a lower temperature, typically between with a brewing time of 8–10 minutes to extract its optimal flavour. In contrast, black tea needs to be made with hotter water, usually around with a brewing of around 15–20 minutes to bring out its sweetness. A tea warmer dispenser allows the tea to remain heated for up to eight hours.
Pearls (boba) are made from tapioca starch. Most bubble tea stores buy packaged tapioca pearls in an uncooked stage. When the boba is uncooked and in the package, it is uncolored and hard. The boba does not turn chewy and dark until they are cooked and sugar is added to bring out its taste. Uncooked tapioca pearls in their package can be stored for around 9 to 12 months. Once cooked, they can be stored in a sealed container in the refrigerator. Despite this, most bubble tea stores will not sell their boba after 24 hours because it will start to harden and lose its chewiness.
The traditional preparation method is to mix the ingredients (sugar, powders, and other flavourings) together using a bubble tea shaker cup, by hand. However, many present-day bubble tea shops use a bubble tea shaker machine. This eliminates the need for humans to shake the bubble tea by hand. It also reduces staffing needs as multiple cups of bubble tea may be prepared by a single barista.
History
Milk and sugar have been added to tea in Taiwan since the Dutch colonization of Taiwan from 1624–1662.
There are two competing stories for the discovery of bubble tea.
Popularity
In the 1990s, bubble tea spread across East and Southeast Asia with its ever-growing popularity. In regions like Hong Kong, mainland China, Japan, Vietnam, and Singapore, the bubble tea trend expanded rapidly among young people. In some popular shops, people would line up for more than thirty minutes to get a drink. In 2020, the date April 30 was officially declared as National Bubble Tea Day in Taiwan. According to Al Jazeera, bubble tea has become synonymous with Taiwan and is an important symbol of Taiwanese identity both domestically and internationally. Bubble tea is used to represent Taiwan in the context of the Milk Tea Alliance. Hong Kong Hong Kong is famous for its traditional Hong Kong–style milk tea, which is made with brewed black tea and evaporated milk. In 2020 it was estimated that the consumption of bubble tea was 5 times that of coffee in recent years. In 2019, annual sales from bubble tea shops reached as high as (roughly ). While bubble tea chains from Taiwan (e.g., Gong Cha and Coco) are still popular, more local brands, like Yi Dian Dian, Nayuki, Hey Tea, etc., are now dominating the market. It was not until the 2010s when the bubble tea trend finally swept Japan.
Singapore
Known locally in Chinese as (), bubble tea is loved by many in Singapore. The drink was sold in Singapore as early as 1992 and became phenomenally popular among young people in 2001. This soon ended because of the intense competition and price wars among shops. As a result, most bubble tea shops closed and bubble tea lost its popularity by 2003. In 2018, the interest in bubble tea rose again at an unprecedented speed in Singapore, as new brands like The Alley and Tiger Sugar entered the market; social media also played an important role in driving this renaissance of bubble tea. Some of the first stand-alone bubble tea shops can be traced to a food court in Arcadia, in Southern California, Chains like Tapioca Express, Quickly, Lollicup, and Happy Lemon emerged in the late 1990s and early 2000s, bringing the Taiwanese bubble tea trend to the US. It is also used disparagingly in the term boba liberal, a term that derides mainstream Asian-American liberalism. Other regions with large concentrations of bubble tea restaurants in the United States are the Northeast and Southwest. This is reflected in the coffeehouse-style teahouse chains that originate from the regions, such as Boba Tea Company from Albuquerque, New Mexico, No. 1 Boba Tea in Las Vegas, Nevada, and Kung Fu Tea from New York City. Albuquerque and Las Vegas have a large concentrations of boba tea restaurants, as the drink is popular especially among the Hispano, Navajo, Pueblo, and other Native American, Hispanic and Latino American communities in the Southwest.
A massive shipping and supply chain crisis on the U.S. West coast, coupled with the obstruction of the Suez Canal in March 2021, caused a shortage of tapioca pearls for bubble tea shops in the U.S. and Canada. Most of the tapioca consumed in the U.S. is imported from Asia, since the critical ingredient, tapioca starch, is mostly grown in Asia.
TikTok trends and the Korean Wave also fueled the popularity of bubble tea in the United States.
Vietnam
Taiwanese milk tea was introduced to Vietnam in the early 2000s, but it took a few years for this drink to become popular with young people. Roadside stalls and carts rarely served milk tea, and the milk tea trend gradually cooled down in the late 2000s. Many shops had to liquidate or close, while others struggled to survive. Bubble tea also gained controversy because of information about tea of unknown origin, tapioca pearls allegedly being made from polymer plastics, etc.
By 2012, Taiwanese brands arrived in Vietnam, still the same old milk tea but served in a completely new style: milk tea with toppings, developing a chain model, and a space designed as well as any famous coffee shop. Also, the halo of Taiwanese milk tea gradually returned, especially around the end of 2016, to the beginning of 2017. According to a survey by Lozi, in 2017, the Vietnamese milk tea market witnessed an explosion with 100 large and small brands coexisting and over 1,500 points of sale, including major brands from Taiwan such as Ding Tea, Gong Cha, BoBaPop. This survey also shows that milk tea is becoming a popular drink in Vietnam when 53% of people are confirmed to drink milk tea at least once a week.
From the consumer perspective, milk tea is characterized by its sweet, creamy taste, suitable for many customers, not only students, but also children and office workers. In addition, milk tea is constantly "transforming" to meet all customer needs, from cheese cream tea, fruit tea to low-fat tea. Another important point that makes milk tea popular is the service style. Instead of small shops and school gate carts like in the past, the milk tea is designed into a spacious space, with fixed seats, and cool air conditioning.
Korea
Milk tea is not only a daily drink, but it has also become a "fever drink" loved in many countries, including South Korea. In the capital Seoul alone, there are 4 famous milk tea shops, which are popular places for entertainment, dating, and meeting of Korean youth every weekend, which are Gong Cha, Cofioca, Amasvin, and Happy Lemon.
In Korea, there are many different large and small milk tea shops, famous brands or just small shops with a drink counter and a table. Although pearl milk tea originated in Taiwan, it took certain changes in Korea. Koreans are very concerned about keeping in shape, every meal they have to check exactly how many calories they take in, so that they can do appropriate exercises to burn off excess fat. Therefore, when entering restaurants or bakeries in Korea, we will see the calorie index recorded very carefully as a way to protect the health of consumers. For example, at Gong Cha milk tea shops there, customers can choose the sweetness of their milk tea by choosing the sugar level (0%, 30%, 50%, 70%, and 100%) and similarly choose ice to add personal favourite flavour to their milk tea.AustraliaIndividual bubble tea shops began to appear in Australia in the 1990s, along with other regional drinks like Eis Cendol. Chains of stores were established as early as 2002, when the Bubble Cup franchise opened its first store in Melbourne. Although originally associated with the rapid growth of immigration from Asia and the vast tertiary student cohort from Asia, in Melbourne and Sydney bubble tea has become popular across many communities.
Mauritius
The first bubble tea shop in Mauritius opened in late 2012, and since then there have been bubble tea shops in most shopping malls on the island. Bubble tea shops have become a popular place for teenagers to hang out.
Cultural influence
In 2020, the Unicode Consortium released the bubble tea emoji () as part of its version 13.0 update.
On 29 January 2023, Google celebrated Bubble Tea with a doodle.Potential health concernsIn July 2019, Singapore's Mount Alvernia Hospital warned against the high sugar content of bubble tea since the drink had become extremely popular in Singapore. While it acknowledged the benefits of drinking green tea and black tea in reducing risk of cardiovascular disease, diabetes, arthritis, and cancer, respectively, the hospital cautions that the addition of other ingredients like non-dairy creamer and toppings in the tea could raise the fat and sugar content of the tea and increase the risk of chronic diseases. Non-dairy creamer is a milk substitute that contains trans fat in the form of hydrogenated palm oil. The hospital warned that this oil has been strongly correlated with an increased risk of heart disease and stroke.
The other concern about bubble tea is its high calorie content, partially attributed to the high-carbohydrate tapioca pearls (), which can make up to half the calorie-count in a serving of bubble tea.See also
* Bober Tea and Mochi Dough
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*
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* Milk tea
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* Sharetea
*
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* Teaspoon (restaurant)
* Yifang Taiwan Fruit Tea
References
External links
*
Category:Blended tea
Category:Food and drink introduced in the 1980s
Category:Milk tea
Category:Taiwanese drinks
Category:Taiwanese inventions
Category:Taiwanese tea
Category:Tea culture | https://en.wikipedia.org/wiki/Bubble_tea | 2025-04-05T18:26:40.557310 |
4049 | Battle of Blenheim | | partof = the War of the Spanish Succession
| date =
| place Blindheim, southwest of Donauwörth in Bavaria, southern Germany.}} Höchstädt, Bavaria
| result Grand Alliance victory
| combatant1 = Grand Alliance: |
Austria|| Prussia}}
| combatant2 = France| Bavaria}}
| commander1 = Duke of Marlborough| Eugene of Savoy}}
| commander2 = Duke of Tallard| Count of Marsin| Maximilian II}}
| strength1 =
| strength2 =
| casualties1 = 12,9844,542 killed|7,942 wounded|500 captured}}
| casualties2 = 27,1906,000 killed or drowned|7,000 wounded|14,190 captured}}
| campaignbox
}}
The Battle of Blenheim (; ; ) fought on , was a major battle of the War of the Spanish Succession. The overwhelming Allied victory ensured the safety of Vienna from the Franco-Bavarian army, thus preventing the collapse of the reconstituted Grand Alliance.
Louis XIV of France sought to knock the Holy Roman Emperor, Leopold, out of the war by seizing Vienna, the Habsburg capital, and gain a favourable peace settlement. The dangers to Vienna were considerable: Maximilian II Emanuel, Elector of Bavaria, and Marshal Ferdinand de Marsin's forces in Bavaria threatened from the west, and Marshal Louis Joseph de Bourbon, duc de Vendôme's large army in northern Italy posed a serious danger with a potential offensive through the Brenner Pass. Vienna was also under pressure from Rákóczi's Hungarian revolt from its eastern approaches. Realising the danger, the Duke of Marlborough resolved to alleviate the peril to Vienna by marching his forces south from Bedburg to help maintain Emperor Leopold within the Grand Alliance.
A combination of deception and skilled administration – designed to conceal his true destination from friend and foe alike – enabled Marlborough to march unhindered from the Low Countries to the River Danube in five weeks. After securing Donauwörth on the Danube, Marlborough sought to engage Maximilian's and Marsin's army before Marshal Camille d'Hostun, duc de Tallard, could bring reinforcements through the Black Forest. The Franco-Bavarian commanders proved reluctant to fight until their numbers were deemed sufficient, and Marlborough failed in his attempts to force an engagement. When Tallard arrived to bolster Maximilian's army, and Prince Eugene of Savoy arrived with reinforcements for the Allies, the two armies finally met on the banks of the Danube in and around the small village of Blindheim, from which the English "Blenheim" is derived.
Blenheim was one of the battles that altered the course of the war, which until then was favouring the French and Spanish Bourbons. Although the battle did not win the war, it prevented a potentially devastating loss for the Grand Alliance and shifted the war's momentum, ending French plans of knocking Emperor Leopold out of the war. The French suffered catastrophic casualties in the battle, including their commander-in-chief, Tallard, who was taken captive to England. Before the 1704 campaign ended, the Allies had taken Landau, and the towns of Trier and Trarbach on the Moselle in preparation for the following year's campaign into France itself. This offensive never materialised, for the Grand Alliance's army had to depart the Moselle to defend Liège from a French counter-offensive. The war continued for another decade before ending in 1714.
Background
(December 1704) Uffizi]]
By 1704, the War of the Spanish Succession was in its fourth year. The previous year had been one of successes for France and her allies, most particularly on the Danube, where Marshal Claude-Louis-Hector de Villars and Maximilian II Emanuel, Elector of Bavaria, had created a direct threat to Vienna, the Habsburg capital. Vienna had been saved by dissension between the two commanders, leading to Villars being replaced by the less dynamic Marshal Ferdinand de Marsin. Nevertheless, the threat was still real: Rákóczi's Hungarian revolt was threatening the Empire's eastern approaches, and Marshal Louis Joseph, Duke of Vendôme's forces threatened an invasion from northern Italy. In the courts of Versailles and Madrid, Vienna's fall was confidently anticipated, an event which would almost certainly have led to the collapse of the reconstituted Grand Alliance.
To isolate the Danube from any Allied intervention, Marshal François de Neufville, duc de Villeroi's 46,000 troops were expected to pin the 70,000 Dutch and British troops around Maastricht in the Low Countries, while General Robert Jean Antoine de Franquetot de Coigny protected Alsace against surprise with a further corps. The only forces immediately available for Vienna's defence were the imperial army under Margrave Louis William of Baden of 36,000 men stationed in the Lines of Stollhofen to watch Marshal Camille d'Hostun, duc de Tallard, at Strasbourg; and 10,000 men under Prince Eugene of Savoy south of Ulm.
Various Allied statesmen, including the Imperial Austrian Ambassador in London, Count Wratislaw, and the Duke of Marlborough realised the implications of the situation on the Danube. To maintain secrecy, Marlborough kept his plans hidden from both the Dutch States General and the Parliament of England. In the Dutch Republic, only a select few – Grand Pensionary Anthonie Heinsius, Simon van Slingelandt, Jacob Hop, and François Fagel – were privy to his strategy from the outset. In England, Marlborough confided only in Sidney Godolphin, Queen Anne, and her husband. Marlborough, realising the only way to reinforce the Austrians was by the use of secrecy and guile, pretended to move his troops to the Moselle – a plan approved of by the Dutch States General – but once there, he would move further and link up with Austrian forces in southern Germany. because without them, the army's logistics system would have simply collapsed. Intensive consultations preceded the campaign and the four most important Dutch politicians knew of Marlborough's secret plan to link up with Austrian forces from the start.}}
The Dutch diplomat and field deputy Van Rechteren-Almelo would come to play an important role. He made sure that on their 450-kilometre-long march, the Allies would nowhere be denied passage by local rulers, nor would they need to look for provisions, horsefeed or new boots. He also saw to it that sufficient stopovers were arranged along the way to ensure that the Allies arrived at their destination in good condition. This was of paramount importance, for the success of the operation depended on a quick elimination of the Bavarian elector. However, it was not possible to make the logistical arrangements in advance that would have been indispensable to supply the Allied army south of the Danube. For this, the Allies should have had access to the free imperial cities of Ulm and Augsburg, but the Bavarian elector had taken these two cities. This could have become a problem for Marlborough had the Elector avoided a battle and instead entrenched himself south of the Danube. Had Villeroy then managed to take advantage of the weakening of Allied forces in the Netherlands by recapturing Liège and besieging Maastricht, it would have validated the concerns of some of his Dutch adversaries, who were against any major weakening of the forces in the Spanish Netherlands.PreludeProtagonists march to the Danube
, took control of Allied forces in the Netherlands]]
}}
Marlborough's march started on 19 May from Bedburg, northwest of Cologne. The army assembled by Marlborough's brother, General Charles Churchill, consisted of 66 squadrons of cavalry, 31 battalions of infantry and 38 guns and mortars, totalling 21,000 men, 16,000 of whom were British.}} This force was augmented en route, and by the time it reached the Danube it numbered 40,00047 battalions and 88 squadrons. While Marlborough led this army south, the Dutch general, Henry Overkirk, Count of Nassau, maintained a defensive position in the Dutch Republic against the possibility of Villeroi mounting an attack. Marlborough had assured the Dutch that if the French were to launch an offensive he would return in good time, but he calculated that as he marched south, the French army would be drawn after him. In this assumption Marlborough proved correct: Villeroi shadowed him with 30,000 men in 60 squadrons and 42 battalions. Marlborough wrote to Godolphin: "I am very sensible that I take a great deal upon me, but should I act otherwise, the Empire would be undone ..."
In the meantime, the appointment of Henry Overkirk as Field Marshal caused significant controversy in the Dutch Republic. After the Earl of Athlone's death, the Dutch States General had put Overkirk in charge of the Dutch States Army, which led to much discontent among the other high-ranking Dutch generals. Ernst Wilhelm von Salisch, Daniël van Dopff and Menno van Coehoorn threatened to resign or go into the service of other countries, although all were eventually convinced to stay. The new infantry generals were also disgruntled — the Lord of Slangenburg because he had to serve the less experienced Overkirk; and the Count of Noyelles because he had to serve the orders of the 'insupportable' Slangenburg. Then there was the major problem of the position of the Prince of Orange. The provinces of Friesland and Groningen demanded that their 17-year-old stadtholder be appointed supreme infantry general. This divided the parties so much that a second Grand Assembly, as had existed in 1651, was considered. However, after pressure from the other provinces, Friesland and Groningen adjusted their demands and a compromise was found. The Prince of Orange would nominally be appointed infantry general, behind Slangenburg and Noyelles, but he would not really be in command until he was 20.
While the Allies were making their preparations, the French were striving to maintain and re-supply Marsin. He had been operating with Maximilian II against Margrave Louis William, and was somewhat isolated from France: his only lines of communication lay through the rocky passes of the Black Forest. On 14 May, Tallard brought 8,000 reinforcements and vast supplies and munitions through the difficult terrain, whilst outmanoeuvring , the Imperial general who sought to block his path. Tallard then returned with his own force to the Rhine, once again side-stepping Thüngen's efforts to intercept him.
On 26 May, Marlborough reached Coblenz, where the Moselle meets the Rhine. If he intended an attack along the Moselle his army would now have to turn west; instead it crossed to the right bank of the Rhine, and was reinforced by 5,000 waiting Hanoverians and Prussians. The French realised that there would be no campaign on the Moselle. A second possible objective now occurred to theman Allied incursion into Alsace and an attack on Strasbourg. Marlborough furthered this apprehension by constructing bridges across the Rhine at Philippsburg, a ruse that not only encouraged Villeroi to come to Tallard's aid in the defence of Alsace, but one that ensured the French plan to march on Vienna was delayed while they waited to see what Marlborough's army would do.
Encouraged by Marlborough's promise to return to the Netherlands if a French attack developed there, transferring his troops up the Rhine on barges at a rate of a day, the Dutch States General agreed to release the Danish contingent of seven battalions and 22 squadrons as reinforcements. Marlborough reached Ladenburg, in the plain of the Neckar and the Rhine, and there halted for three days to rest his cavalry and allow the guns and infantry to close up. On 6 June he arrived at Wiesloch, south of Heidelberg. The following day, the Allied army swung away from the Rhine towards the hills of the Swabian Jura and the Danube beyond. At last Marlborough's destination was established without doubt.Strategy
(1663–1736) by Jacob van Schuppen. Prince Eugene met Marlborough for the first time in 1704. It was the start of a lifelong personal and professional friendship.]]
On 10 June, Marlborough met for the first time the President of the Imperial War Council, Prince Eugene – accompanied by Count Wratislaw – at the village of Mundelsheim, halfway between the Danube and the Rhine. By 13 June, the Imperial Field Commander, Margrave Louis William of Baden, had joined them in Großheppach.}} The three generals commanded a force of nearly 110,000 men. At this conference, it was decided that Prince Eugene would return with 28,000 men to the Lines of Stollhofen on the Rhine to watch Villeroi and Tallard and prevent them going to the aid of the Franco-Bavarian army on the Danube. Meanwhile, Marlborough's and Margrave Louis William's forces would combine, totalling 80,000 men, and march on the Danube to seek out Maximilian II and Marsin before they could be reinforced.
Knowing Marlborough's destination, Tallard and Villeroi met at Landau in the Palatinate on 13 June to construct a plan to save Bavaria. The rigidity of the French command system was such that any variations from the original plan had to be sanctioned by Versailles. The Count of Mérode-Westerloo, commander of the Flemish troops in Tallard's army, wrote "One thing is certain: we delayed our march from Alsace for far too long and quite inexplicably." Approval from King Louis arrived on 27 June: Tallard was to reinforce Marsin and Maximilian II on the Danube via the Black Forest, with 40 battalions and 50 squadrons; Villeroi was to pin down the Allies defending the Lines of Stollhofen, or, if the Allies should move all their forces to the Danube, he was to join with Tallard; Coigny with 8,000 men would protect Alsace. On 1 July Tallard's army of 35,000 re-crossed the Rhine at Kehl and began its march.
On 22 June, Marlborough's forces linked up with the Imperial forces at Launsheim, having covered in five weeks. per day. What stands out was the total distance covered and the fine condition of the troops when they arrived.}} Thanks to a carefully planned timetable, the effects of wear and tear had been kept to a minimum. Captain Parker described the march discipline: "As we marched through the country of our Allies, commissars were appointed to furnish us with all manner of necessaries for man and horse ... the soldiers had nothing to do but pitch their tents, boil kettles and lie down to rest."}} In response to Marlborough's manoeuvres, Maximilian and Marsin, conscious of their numerical disadvantage with only 40,000 men, moved their forces to the entrenched camp at Dillingen on the north bank of the Danube. Marlborough could not attack Dillingen because of a lack of siege guns – he had been unable to bring any from the Low Countries, and Margrave Louis William had failed to supply any, despite prior assurances that he would.
on 2 July – provided the Allies with an excellent river crossing.]]
The Allies needed a base for provisions and a good river crossing. Consequently, on 2 July Marlborough stormed the fortress of Schellenberg on the heights above the town of Donauwörth. Count Jean d'Arco had been sent with 12,000 men from the Franco-Bavarian camp to hold the town and grassy hill, but after a fierce battle, with heavy casualties on both sides, Schellenberg fell. This forced Donauwörth to surrender shortly afterward. Maximilian, knowing his position at Dillingen was now not tenable, took up a position behind the strong fortifications of Augsburg.
Tallard's march presented a dilemma for Prince Eugene. If the Allies were not to be outnumbered on the Danube, he realised that he had to either try to cut Tallard off before he could get there, or to reinforce Marlborough. If he withdrew from the Rhine to the Danube, Villeroi might also make a move south to link up with Maximilian and Marsin. Prince Eugene compromisedleaving 12,000 troops behind guarding the Lines of Stollhofenhe marched off with the rest of his army to forestall Tallard.
Lacking in numbers, Prince Eugene could not seriously disrupt Tallard's march but the French marshal's progress was proving slow. Tallard's force had suffered considerably more than Marlborough's troops on their march – many of his cavalry horses were suffering from glanders and the mountain passes were proving tough for the 2,000 wagonloads of provisions. Local German peasants, angry at French plundering, compounded Tallard's problems, leading Mérode-Westerloo to bemoan – "the enraged peasantry killed several thousand of our men before the army was clear of the Black Forest."
At Augsburg, Maximilian was informed on 14 July that Tallard was on his way through the Black Forest. This good news bolstered his policy of inaction, further encouraging him to wait for the reinforcements. This reticence to fight induced Marlborough to undertake a controversial policy of spoliation in Bavaria, burning buildings and crops throughout the rich lands south of the Danube. This had two aims: firstly to put pressure on Maximilian to fight or come to terms before Tallard arrived with reinforcements; and secondly, to ruin Bavaria as a base from which the French and Bavarian armies could attack Vienna, or pursue Marlborough into Franconia if, at some stage, he had to withdraw northwards. But this destruction, coupled with a protracted siege of the town of Rain over 9 to 16 July, caused Prince Eugene to lament "... since the Donauwörth action I cannot admire their performances", and later to conclude "If he has to go home without having achieved his objective, he will certainly be ruined."Final positioning
before the battle, 9–13 August]]
Tallard, with 34,000 men, reached Ulm, joining with Maximilian and Marsin at Augsburg on 5 August, although Maximilian had dispersed his army in response to Marlborough's campaign of ravaging the region. Also on 5 August, Prince Eugene reached Höchstädt, riding that same night to meet with Marlborough at Schrobenhausen. Marlborough knew that another crossing point over the Danube was required in case Donauwörth fell to the enemy; so on 7 August, the first of Margrave Louis William's 15,000 Imperial troops left Marlborough's main force to besiege the heavily defended city of Ingolstadt, farther down the Danube, with the remainder following two days later.}}
scouts the marshy terrain near Blenheim at the risk of his own life]]
With Prince Eugene's forces at Höchstädt on the north bank of the Danube, and Marlborough's at Rain on the south bank, Tallard and Maximilian debated their next move. Tallard preferred to bide his time, replenish supplies and allow Marlborough's Danube campaign to flounder in the colder autumn weather; Maximilian and Marsin, newly reinforced, were keen to push ahead. The French and Bavarian commanders eventually agreed to attack Prince Eugene's smaller force. On 9 August, the Franco-Bavarian forces began to cross to the north bank of the Danube. On 10 August, Prince Eugene sent an urgent dispatch reporting that he was falling back to Donauwörth. By a series of swift marches Marlborough concentrated his forces on Donauwörth and, by noon 11 August, the link-up was complete.
During 11 August, Tallard pushed forward from the river crossings at Dillingen. By 12 August, the Franco-Bavarian forces were encamped behind the small River Nebel near the village of Blenheim on the plain of Höchstädt. On the same day, Marlborough and Prince Eugene carried out a reconnaissance of the French position from the church spire at Tapfheim, and moved their combined forces to Münster – from the French camp. A French reconnaissance under Jacques Joseph Vipart, Marquis de Silly went forward to probe the enemy, but were driven off by Allied troops who had deployed to cover the pioneers of the advancing army, labouring to bridge the numerous streams in the area and improve the passage leading westwards to Höchstädt.}} Marlborough quickly moved forward two brigades under the command of Lieutenant General John Wilkes and Brigadier Archibald Rowe to secure the narrow strip of land between the Danube and the wooded Fuchsberg hill, at the Schwenningen defile. Tallard's army numbered 56,000 men and 90 guns; the army of the Grand Alliance, 52,000 men and 66 guns. Some Allied officers who were acquainted with the superior numbers of the enemy, and aware of their strong defensive position, remonstrated with Marlborough about the hazards of attacking; but he was resolute – partly because the Dutch officer Willem Vleertman had scouted the marshy ground before them and reported that the land was perfectly suitable for the troops.BattleThe battlefieldThe battlefield stretched for nearly . The extreme right flank of the Franco-Bavarian army rested on the Danube, the undulating pine-covered hills of the Swabian Jura lay to their left. A small stream, the Nebel, fronted the French line; the ground either side of this was marshy and only fordable intermittently. The French right rested on the village of Blenheim near where the Nebel flows into the Danube; the village itself was surrounded by hedges, fences, enclosed gardens, and meadows. Between Blenheim and the village of Oberglauheim to the north west the fields of wheat had been cut to stubble and were now ideal for the deployment of troops. From Oberglauheim to the next hamlet of Lutzingen the terrain of ditches, thickets and brambles was potentially difficult ground for the attackers.
Initial manoeuvres
.]]
At 02:00 on 13 August, 40 Allied cavalry squadrons were sent forward, followed at 03:00, in eight columns, by the main Allied force pushing over the River Kessel. At about 06:00 they reached Schwenningen, from Blenheim. The British and German troops who had held Schwenningen through the night joined the march, making a ninth column on the left of the army. Marlborough and Prince Eugene made their final plans. The Allied commanders agreed that Marlborough would command 36,000 troops and attack Tallard's force of 33,000 on the left, including capturing the village of Blenheim, while Prince Eugene's 16,000 men would attack Maximilian and Marsin's combined forces of 23,000 troops on the right. If this attack was pressed hard, it was anticipated that Maximilian and Marsin would feel unable to send troops to aid Tallard on their right. Lieutenant-General John Cutts would attack Blenheim in concert with Prince Eugene's attack. With the French flanks busy, Marlborough could cross the Nebel and deliver the fatal blow to the French at their centre. The Allies would have to wait until Prince Eugene was in position before the general engagement could begin.
Tallard was not anticipating an Allied attack; he had been deceived by intelligence gathered from prisoners taken by de Silly the previous day, and his army's strong position. Tallard and his colleagues believed that Marlborough and Prince Eugene were about to retreat north-westwards towards Nördlingen.<!-- WHICH Chandler --> suggest that Marlborough had planted this corroborative 'evidence' for Tallard.}} Tallard wrote a report to this effect to King Louis that morning. Signal guns were fired to bring in the foraging parties and pickets as the French and Bavarian troops drew into battle-order to face the unexpected threat.
At around 08:00 the French artillery on their right wing opened fire, answered by Colonel Holcroft Blood's batteries.}} The guns were heard by Prince Louis in his camp before Ingolstadt. An hour later Tallard, Maximilian, and Marsin climbed Blenheim's church tower to finalise their plans. It was settled that Maximilian and Marsin would hold the front from the hills to Oberglauheim, whilst Tallard would defend the ground between Oberglauheim and the Danube. The French commanders were divided as to how to utilise the Nebel. Tallard's preferred tactic was to lure the Allies across before unleashing his cavalry upon them. This was opposed by Marsin and Maximilian who felt it better to close their infantry right up to the stream itself, so that while the enemy was struggling in the marshes, they would be caught in crossfire from Blenheim and Oberglauheim. Tallard's approach was sound if all its parts were implemented, but in the event it allowed Marlborough to cross the Nebel without serious interference and fight the battle he had planned.Deployment
]]
The Franco-Bavarian commanders deployed their forces. In the village of Lutzingen, Count Alessandro de Maffei positioned five Bavarian battalions with a great battery of 16 guns at the village's edge. In the woods to the left of Lutzingen, seven French battalions under César Armand, Marquis de Rozel moved into place. Between Lutzingen and Oberglauheim Maximilian placed 27 squadrons of cavalry and 14 Bavarian squadrons commanded by d'Arco with 13 more in support nearby under Baron Veit Heinrich Moritz Freiherr von Wolframsdorf. To their right stood Marsin's 40 French squadrons and 12 battalions. The village of Oberglauheim was packed with 14 battalions commanded by , including the effective Irish Brigade known as the "Wild Geese". Six batteries of guns were ranged alongside the village. On the right of these French and Bavarian positions, between Oberglauheim and Blenheim, Tallard deployed 64 French and Walloon squadrons, 16 of which were from Marsin, supported by nine French battalions standing near the Höchstädt road. In the cornfield next to Blenheim stood three battalions from the Regiment de Roi. Nine battalions occupied the village itself, commanded by Philippe, Marquis de Clérambault. Four battalions stood to the rear and a further eleven were in reserve. These battalions were supported by Count Gabriel d'Hautefeuille's twelve squadrons of dismounted dragoons. By 11:00 Tallard, Maximilian, and Marsin were in place. Many of the Allied generals were hesitant to attack such a strong position. The Earl of Orkney later said that, "had I been asked to give my opinion, I had been against it."
Prince Eugene was expected to be in position by 11:00, but due to the difficult terrain and enemy fire, progress was slow. Cutts' column – which by 10:00 had expelled the enemy from two water mills on the Nebel – had already deployed by the river against Blenheim, enduring over the next three hours severe fire from a six-gun heavy battery posted near the village. The rest of Marlborough's army, waiting in their ranks on the forward slope, were also forced to bear the cannonade from the French artillery, suffering 2,000 casualties before the attack could even start. Meanwhile, engineers repaired a stone bridge across the Nebel, and constructed five additional bridges or causeways across the marsh between Blenheim and Oberglauheim. Marlborough's anxiety was finally allayed when, just past noon, Colonel William Cadogan reported that Prince Eugene's Prussian and Danish infantry were in place – the order for the general advance was given. At 13:00, Cutts was ordered to attack the village of Blenheim whilst Prince Eugene was requested to assault Lutzingen on the Allied right flank.Blenheim
by Judocus de Vos. In the background is the village of Blenheim; in the middle ground are the two water mills that Rowe had to take to gain a bridgehead over the Nebel. The foreground shows an English grenadier with a captured French colour.]]
Cutts ordered Rowe's brigade to attack. The English infantry rose from the edge of the Nebel, and silently marched towards Blenheim, a distance of some . James Ferguson's Scottish brigade supported Rowe's left, and moved towards the barricades between the village and the river, defended by Hautefeuille's dragoons. As the range closed to within , the French fired a deadly volley. Rowe had ordered that there should be no firing from his men until he struck his sword upon the palisades, but as he stepped forward to give the signal, he fell mortally wounded.}} The survivors of the leading companies closed up the gaps in their ranks and rushed forward. Small parties penetrated the defences, but repeated French volleys forced the English back and inflicted heavy casualties. As the attack faltered, eight squadrons of elite Gens d'Armes, commanded by the veteran Swiss officer, , fell on the English troops, cutting at the exposed flank of Rowe's own regiment. and Coxe state only three squadrons of Gens d'Armes. Rowe's own regiment lost their colours, but they were soon retrieved by the Hessians.}} Wilkes' Hessian brigade, nearby in the marshy grass at the water's edge, stood firm and repulsed the Gens d'Armes with steady fire, enabling the English and Hessians to re-order and launch another attack.
Although the Allies were again repulsed, these persistent attacks on Blenheim eventually bore fruit, panicking Clérambault into making the worst French error of the day. Without consulting Tallard, Clérambault ordered his reserve battalions into the village, upsetting the balance of the French position and nullifying the French numerical superiority. "The men were so crowded in upon one another", wrote Mérode-Westerloo, "that they couldn't even fire – let alone receive or carry out any orders". Marlborough, spotting this error, now countermanded Cutts' intention to launch a third attack, and ordered him simply to contain the enemy within Blenheim; no more than 5,000 Allied soldiers were able to pen in twice the number of French infantry and dragoons.Lutzingen
, Germany]]
}}
On the Allied right, Prince Eugene's Prussian and Danish forces were desperately fighting the numerically superior forces of Maximilian and Marsin. Leopold I, Prince of Anhalt-Dessau led forward four brigades across the Nebel to assault the well-fortified position of Lutzingen. Here, the Nebel was less of an obstacle, but the great battery positioned on the edge of the village enjoyed a good field of fire across the open ground stretching to the hamlet of Schwennenbach. As soon as the infantry crossed the stream, they were struck by Maffei's infantry, and salvoes from the Bavarian guns positioned both in front of the village and in enfilade on the wood-line to the right. Despite heavy casualties the Prussians attempted to storm the great battery, whilst the Danes, under Count Jobst von Scholten, attempted to drive the French infantry out of the copses beyond the village.
With the infantry heavily engaged, Prince Eugene's cavalry picked its way across the Nebel. After an initial success, his first line of cavalry, under the Imperial General of Horse, Prince Maximilian of Hanover, were pressed by the second line of Marsin's cavalry and forced back across the Nebel in confusion. The exhausted French were unable to follow up their advantage, and both cavalry forces tried to regroup and reorder their ranks. Without cavalry support, and threatened with envelopment, the Prussian and Danish infantry were in turn forced to pull back across the Nebel. Panic gripped some of Prince Eugene's troops as they crossed the stream. Ten infantry colours were lost to the Bavarians, and hundreds of prisoners taken; it was only through the leadership of Prince Eugene and the Prince Maximilian of Hanover that the Imperial infantry was prevented from abandoning the field.
After rallying his troops near Schwennenbach – well beyond their starting point – Prince Eugene prepared to launch a second attack, led by the second-line squadrons under the Duke of Württemberg-Teck. Yet again they were caught in the murderous crossfire from the artillery in Lutzingen and Oberglauheim, and were once again thrown back in disarray. The French and Bavarians were almost as disordered as their opponents, and they too were in need of inspiration from their commander, Maximilian, who was seen " ... riding up and down, and inspiring his men with fresh courage." Anhalt-Dessau's Danish and Prussian infantry attacked a second time but could not sustain the advance without proper support. Once again they fell back across the stream.
Centre and Oberglauheim
Whilst these events around Blenheim and Lutzingen were taking place, Marlborough was preparing to cross the Nebel. Hulsen's brigade of Hessians and Hanoverians and the earl of Orkney's British brigade advanced across the stream and were supported by dismounted British dragoons and ten British cavalry squadrons. This covering force allowed Charles Churchill's Dutch, British and German infantry and further cavalry units to advance and form up on the plain beyond. Marlborough arranged his infantry battalions in a novel manner, with gaps sufficient to allow the cavalry to move freely between them. He ordered the formation forward. Once again Zurlauben's Gens d'Armes charged, looking to rout Henry Lumley's English cavalry who linked Cutts' column facing Blenheim with Churchill's infantry. As the elite French cavalry attacked, they were faced by five English squadrons under Colonel Francis Palmes. To the consternation of the French, the Gens d'Armes were pushed back in confusion and were pursued well beyond the Maulweyer stream that flows through Blenheim. "What? Is it possible?" exclaimed Maximilian, "the gentlemen of France fleeing?" Palmes attempted to follow up his success but was repulsed by other French cavalry and musket fire from the edge of Blenheim.
Nevertheless, Tallard was alarmed by the repulse of the Gens d'Armes and urgently rode across the field to ask Marsin for reinforcements; but on the basis of being hard pressed by Prince Eugene – whose second attack was in full flood – Marsin refused. As Tallard consulted with Marsin, more of his infantry were taken into Blenheim by Clérambault. Fatally, Tallard, although aware of the situation, did nothing to rectify it, leaving him with just the nine battalions of infantry near the Höchstädt road to oppose the massed enemy ranks in the centre. Zurlauben tried several more times to disrupt the Allies forming on Tallard's side of the stream. His front-line cavalry darted forward down the gentle slope towards the Nebel, but the attacks lacked co-ordination, and the Allied infantry's steady volleys disconcerted the French horsemen. During these skirmishes Zurlauben fell mortally wounded; he died two days later. At this stage the time was just after 15:00.
The Danish cavalry, under Carl Rudolf, Duke of Württemberg-Neuenstadt, had made slow work of crossing the Nebel near Oberglauheim. Harassed by Marsin's infantry near the village, the Danes were driven back across the stream. Count Horn's Dutch infantry managed to push the French back from the water's edge, but it was apparent that before Marlborough could launch his main effort against Tallard, Oberglauheim would have to be secured.
Count Horn directed Anton Günther, Fürst von Holstein-Beck to take the village, but his two Dutch brigades were cut down by the French and Irish troops, capturing and badly wounding Holstein-Beck during the action. The battle was now in the balance. If Holstein-Beck's Dutch column were destroyed, the Allied army would be split in two: Prince Eugene's wing would be isolated from Marlborough's, passing the initiative to the Franco-Bavarian forces.}} Seeing the opportunity, Marsin ordered his cavalry to change from facing Prince Eugene, and turn towards their right and the open flank of Churchill's infantry drawn up in front of Unterglau. Marlborough, who had crossed the Nebel on a makeshift bridge to take personal control, ordered Hulsen's Hanoverian battalions to support the Dutch infantry. A nine-gun artillery battery and a Dutch cavalry brigade under Averock were also called forward, but the cavalry soon came under pressure from Marsin's more numerous squadrons.
Marlborough now requested Prince Eugene to release Count Hendrick Fugger and his Imperial Cuirassier brigade to help repel the French cavalry thrust. Despite his own difficulties, Prince Eugene at once complied. Although the Nebel stream lay between Fugger's and Marsin's squadrons, the French were forced to change front to meet this new threat, thus preventing Marsin from striking at Marlborough's infantry. Fugger's cuirassiers charged and, striking at a favourable angle, threw back Marsin's squadrons in disorder. With support from Blood's batteries, the Hessian, Hanoverian and Dutch infantry – now commanded by Count Berensdorf – succeeded in pushing the French and Irish infantry back into Oberglauheim so that they could not again threaten Churchill's flank as he moved against Tallard. The French commander in the village, de Blainville, was numbered among the heavy casualties.
Breakthrough
}}
By 16:00, with large parts of the Franco-Bavarian army besieged in Blenheim and Oberglau, the Allied centre of 81 squadrons (nine squadrons had been transferred from Cutts' column) supported by 18 battalions was firmly planted amidst the French line of 64 squadrons and nine battalions of raw recruits. There was now a pause in the battle: Marlborough wanted to attack simultaneously along the whole front, and Prince Eugene, after his second repulse, needed time to reorganise.
By just after 17:00 all was ready along the Allied front. Marlborough's two lines of cavalry had now moved to the front of his line of battle, with the two supporting lines of infantry behind them. Mérode-Westerloo attempted to extricate some French infantry crowded into Blenheim, but Clérambault ordered the troops back into the village. The French cavalry exerted themselves once more against the Allied first line – Lumley's English and Scots on the Allied left, and Reinhard Vincent Graf von Hompesch's Dutch and German squadrons on the Allied right. Tallard's squadrons, which lacked infantry support and were tired, managed to push the Allied first line back to their infantry support. With the battle still not won, Marlborough had to rebuke one of his cavalry officers who was attempting to leave the field – "Sir, you are under a mistake, the enemy lies that way ..." Marlborough commanded the second Allied line, under and , to move forward, and, driving through the centre, the Allies finally routed Tallard's tired cavalry. The Prussian Life Dragoons' Colonel, Ludwig von Blumenthal, and his second in command, Lieutenant Colonel von Hacke, fell next to each other, but the charge succeeded. With their cavalry in headlong flight, the remaining nine French infantry battalions fought with desperate valour, trying to form a square, but they were overwhelmed by Blood's close-range artillery and platoon fire. Mérode-Westerloo later wrote – "[They] died to a man where they stood, stationed right out in the open plain – supported by nobody."
]]
The majority of Tallard's retreating troops headed for Höchstädt but most did not make the safety of the town, plunging instead into the Danube where over 3,000 French horsemen drowned; that it was the "greater part" of 2,000 men who drowned.}} others were cut down by the pursuing Allied cavalry. The Marquis de Gruignan attempted a counter-attack, but he was brushed aside by the triumphant Allies. After a final rally behind his camp's tents, shouting entreaties to stand and fight, Tallard was caught up in the rout and swept towards Sonderheim. Surrounded by a squadron of Hessian troops, Tallard surrendered to Lieutenant Colonel de Boinenburg, the Prince of Hesse-Kassel's aide-de-camp, and was sent under escort to Marlborough. Marlborough welcomed the French commander – "I am very sorry that such a cruel misfortune should have fallen upon a soldier for whom I have the highest regard."
Meanwhile, the Allies had once again attacked the Bavarian stronghold at Lutzingen. Prince Eugene became exasperated with the performance of his Imperial cavalry whose third attack had failed: he had already shot two of his troopers to prevent a general flight. Then, declaring in disgust that he wished to "fight among brave men and not among cowards", Prince Eugene went into the attack with the Prussian and Danish infantry, as did Leopold I, waving a regimental colour to inspire his troops. This time the Prussians were able to storm the great Bavarian battery, and overwhelm the guns' crews. Beyond the village, Scholten's Danes defeated the French infantry in a desperate hand-to-hand bayonet struggle.}} When they saw that the centre had broken, Maximilian and Marsin decided the battle was lost; like the remnants of Tallard's army, they fled the battlefield, albeit in better order than Tallard's men. Attempts to organise an Allied force to prevent Marsin's withdrawal failed owing to the exhaustion of the cavalry, and the growing confusion in the field.Fall of Blenheim}}
Marlborough now turned his attention from the fleeing enemy to direct Churchill to detach more infantry to storm Blenheim. Orkney's infantry, Hamilton's English brigade and St Paul's Hanoverians moved across the trampled wheat to the cottages. Fierce hand-to-hand fighting gradually forced the French towards the village centre, in and around the walled churchyard which had been prepared for defence. Lord John Hay and Charles Ross's dismounted dragoons were also sent, but suffered under a counter-charge delivered by the regiments of Artois and Provence under command of Colonel de la Silvière. Colonel Belville's Hanoverians were fed into the battle to steady the resolve of the dragoons, who attacked again. The Allied progress was slow and hard, and like the defenders, they suffered many casualties.
Many of the cottages were now burning, obscuring the field of fire and driving the defenders out of their positions. Hearing the din of battle in Blenheim, Tallard sent a message to Marlborough offering to order the garrison to withdraw from the field. "Inform Monsieur Tallard", replied Marlborough, "that, in the position in which he is now, he has no command." Nevertheless, as dusk came the Allied commander was anxious for a quick conclusion. The French infantry fought tenaciously to hold on to their position in Blenheim, but their commander was nowhere to be found. By now Blenheim was under assault from every side by three British generals: Cutts, Churchill, and Orkney. The French had repulsed every attack, but many had seen what had happened on the plain: their army was routed and they were cut off. Orkney, attacking from the rear, now tried a different tactic – "... it came into my head to beat parley", he later wrote, "which they accepted of and immediately their Brigadier de Nouville capitulated with me to be prisoner at discretion and lay down their arms." Threatened by Allied guns, other units followed their example. It was not until 21:00 that the Marquis de Blanzac, who had taken charge in Clérambault's absence, reluctantly accepted the inevitability of defeat, and some 10,000 of France's best infantry had laid down their arms.
During these events Marlborough was still in the saddle organising the pursuit of the broken enemy. Pausing for a moment, he scribbled on the back of an old tavern bill a note addressed to his wife, Sarah: "I have no time to say more but to beg you will give my duty to the Queen, and let her know her army has had a glorious victory."}}
Aftermath
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French losses were immense, with over 27,000 killed, wounded and captured. Moreover, the myth of French invincibility had been destroyed, and King Louis's hopes of a victorious early peace were over. Mérode-Westerloo summarised the case against Tallard's army: }} It was a hard-fought contest: Prince Eugene observed that "I have not a squadron or battalion which did not charge four times at least."
Although the war dragged on for years, the Battle of Blenheim was probably its most decisive victory; Marlborough and Prince Eugene had saved the Habsburg Empire and thereby preserved the Grand Alliance from collapse. Munich, Augsburg, Ingolstadt, Ulm and the remaining territory of Bavaria soon fell to the Allies. By the Treaty of Ilbersheim, signed on 7 November, Bavaria was placed under Austrian military rule, allowing the Habsburgs to use its resources for the rest of the conflict.
The remnants of Maximilian and Marsin's wing limped back to Strasbourg, losing another 7,000 men through desertion. Despite being offered the chance to remain as ruler of Bavaria, under the strict terms of an alliance with Austria, Maximilian left his country and family in order to continue the war against the Allies from the Spanish Netherlands where he still held the post of governor-general. Tallard – who, unlike his subordinates, was not ransomed or exchanged – was taken to England and imprisoned in Nottingham until his release in 1711.
The 1704 campaign lasted longer than usual, for the Allies sought to extract the maximum advantage. Realising that France was too powerful to be forced to make peace by a single victory, Prince Eugene, Marlborough and Prince Louis met to plan their next moves. For the following year Marlborough proposed a campaign along the valley of the Moselle to carry the war deep into France. This required the capture of the major fortress of Landau which guarded the Rhine, and the towns of Trier and Trarbach on the Moselle itself. Trier was taken on 27 October and Landau fell on 23 November to Prince Louis and Prince Eugene; with the fall of Trarbach on 20 December, the campaign season for 1704 came to an end. The planned offensive never materialised as the Grand Alliance's army had to depart the Moselle to defend Liège from a French counteroffensive. The war raged on for another decade.
Marlborough returned to England on 14 December (O.S) to the acclamation of Queen Anne and the country. In the first days of January, the 110 cavalry standards and 128 infantry colours that had been captured during the battle were borne in procession to Westminster Hall.}} In February 1705, Queen Anne, who had made Marlborough a duke in 1702, granted him the Park of Woodstock Palace and promised a sum of £240,000 to build a suitable house as a gift from a grateful Crown in recognition of his victory; this resulted in the construction of Blenheim Palace. The British historian Sir Edward Shepherd Creasy considered Blenheim one of the pivotal battles in history, writing: "Had it not been for Blenheim, all Europe might at this day suffer under the effect of French conquests resembling those of Alexander in extent and those of the Romans in durability." The military historian John A. Lynn considers this claim unjustified, for King Louis never had such an objective; the campaign in Bavaria was intended only to bring a favourable peace settlement and not domination over Europe.
Lake Poet Robert Southey criticised the Battle of Blenheim in his anti-war poem "After Blenheim", but later praised the victory as "the greatest victory which had ever done honour to British arms".NotesReferencesSources
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Category:Battles involving Bavaria
Category:Battles involving England
Category:Battles involving France
Category:Battles involving Hesse-Kassel
Category:Battles involving the Dutch Republic
Category:Battles of the War of the Spanish Succession
Battle of Blenheim
Category:1704 in Europe
Category:Battles involving the Holy Roman Empire
Category:Battles involving Prussia | https://en.wikipedia.org/wiki/Battle_of_Blenheim | 2025-04-05T18:26:40.584955 |
4050 | Battle of Ramillies | |map_type = Belgium
|map_relief = yes
|image_size = 300px
|caption = The Battle of Ramillies by Jan van Huchtenburg
|date = 23 May 1706
|place = Ramillies, Spanish Netherlands
|result = Anglo-Dutch victory
|combatant1 = <br />
|combatant2 = Spain
|commander1 = Duke of Marlborough Lord Overkirk
|commander2 = Duke of Villeroi Maximilian of Bavaria
|strength1 = 62,000
|strength2 = 60,000
|casualties1 3,663–5,000
|casualties2 13,000–15,000
|campaignbox =
}}
The Battle of Ramillies (), fought on 23 May 1706, was a battle of the War of the Spanish Succession. For the Grand AllianceAustria, England, and the Dutch Republicthe battle had followed an indecisive campaign against the Bourbon armies of King Louis XIV of France in 1705. Although the Allies had captured Barcelona that year, they had been forced to abandon their campaign on the Moselle, had stalled in the Spanish Netherlands and suffered defeat in northern Italy. Yet despite his opponents' setbacks LouisXIV wanted peace, but on reasonable terms. Because of this, as well as to maintain their momentum, the French and their allies took the offensive in 1706.
The campaign began well for Louis XIV's generals: in Italy Marshal Vendôme defeated the Austrians at the Battle of Calcinato in April, while in Alsace Marshal Villars forced the Margrave of Baden back across the Rhine. Encouraged by these early gains LouisXIV urged Marshal Villeroi to go over to the offensive in the Spanish Netherlands and, with victory, gain a 'fair' peace. Accordingly, the French Marshal set off from Leuven (Louvain) at the head of 60,000 men and marched towards Tienen (Tirlemont), as if to threaten Zoutleeuw (Léau). Also determined to fight a major engagement, the Duke of Marlborough, commander-in-chief of Anglo-Dutch forces, assembled his armysome 62,000 mennear Maastricht, and marched past Zoutleeuw. With both sides seeking battle, they soon encountered each other on the dry ground between the rivers Mehaigne and Petite Gette, close to the small village of Ramillies.
In less than four hours Marlborough's Dutch, English, and Danish forces overwhelmed Villeroi's and Max Emanuel's Franco-Spanish-Bavarian army. The Duke's subtle moves and changes in emphasis during the battlesomething his opponents failed to realise until it was too latecaught the French in a tactical vice.<!--British! https://proofed.com/writing-tips/spelling-tips-vice-or-vise/--> With their foe broken and routed, the Allies were able to fully exploit their victory. Town after town fell, including Brussels, Bruges and Antwerp; by the end of the campaign Villeroi's army had been driven from most of the Spanish Netherlands. With Prince Eugene's subsequent success at the Battle of Turin in northern Italy, the Allies had imposed the greatest loss of territory and resources that LouisXIV would suffer during the war. Thus, the year 1706 proved, for the Allies, to be an annus mirabilis.
Background
After their disastrous defeat at Blenheim in 1704, the French found some respite in next year. The Duke of Marlborough had intended the 1705 campaignan invasion of France through the Moselle valleyto complete the work of Blenheim and persuade King LouisXIV to make peace but the plan had been thwarted by friend and foe alike. The reluctance of his Dutch allies to see their frontiers denuded of troops for another gamble in Germany had denied Marlborough the initiative Marlborough had to cope with the death of Emperor LeopoldI in May and the accession of JosephI, which unavoidably complicated matters for the Grand Alliance. Marshal Villeroi, exerting considerable pressure on the Dutch commander, Count Overkirk, along the Meuse, took Huy on 10 June before pressing on towards Liège. With Marshal Villars sitting strong on the Moselle, the Allied commanderwhose supplies had by now become very shortwas forced to call off his campaign on 16 June. "What a disgrace for Marlborough," exulted Villeroi, "to have made false movements without any result!" With Marlborough's departure north, the French transferred troops from the Moselle valley to reinforce Villeroi in Flanders, while Villars marched off to the Rhine.
The Anglo-Dutch forces gained minor compensation for the failed Moselle campaign with the success at Elixheim and the crossing of the Lines of Brabant in the Spanish Netherlands (Huy was also retaken on 11 July) but a chance to bring the French to a decisive engagement eluded Marlborough. The year 1705 proved almost entirely barren for the Duke, whose military disappointments were only partly compensated by efforts on the diplomatic front where, at the courts of Düsseldorf, Frankfurt, Vienna, Berlin and Hanover, Marlborough sought to bolster support for the Grand Alliance and extract promises of prompt assistance for the following year's campaign.
Prelude
On 11 January 1706 Marlborough finally reached London at the end of his diplomatic tour but he had already been planning his strategy for the coming season. The first option (although it is debatable to what extent the Duke was committed to such an enterprise) was a plan to transfer his forces from the Spanish Netherlands to northern Italy; once there, he intended linking up with Prince Eugene in order to defeat the French and safeguard Savoy from being overrun. Savoy would then serve as a gateway into France by way of the mountain passes or an invasion with naval support along the Mediterranean coast via Nice and Toulon, in connexion with redoubled Allied efforts in Spain. It seems that the Duke's favoured scheme was to return to the Moselle valley (where Marshal Marsin had recently taken command of French forces) and once more attempt an advance into the heart of France. But these decisions soon became academic. Shortly after Marlborough landed in the Dutch Republic on 14 April, news arrived of big Allied setbacks in the wider war.
Determined to show the Grand Alliance that France was still resolute, LouisXIV prepared to launch a double surprise in Alsace and northern Italy. On the latter front Marshal Vendôme defeated the Imperial army at Calcinato on 19 April, pushing the Imperialists back in confusion (French forces were now in a position to prepare for the long-anticipated siege of Turin). In Alsace, Marshal Villars took Baden by surprise and captured Haguenau, driving him back across the Rhine in some disorder, thus creating a threat on Landau. With these reverses, the Dutch refused to contemplate Marlborough's ambitious march to Italy or any plan that denuded their borders of the Duke and their army. In the interest of coalition harmony, Marlborough prepared to campaign in the Low Countries. On 17 May the Duke concentrated his Dutch and English troops at Tongeren, near Maastricht. The Hanoverians, Hessians and Danes, despite earlier undertakings, found, or invented, pressing reasons for withholding their support. Additionally, the King in Prussia, Frederick I, had kept his troops in quarters behind the Rhine while his personal disputes with Vienna and the States General at The Hague remained unresolved. Nevertheless, the Duke could think of no circumstances why the French would leave their strong positions and attack his army, even if Villeroi was first reinforced by substantial transfers from Marsin's command. But in this he had miscalculated. Although LouisXIV wanted peace he wanted it on reasonable terms; for that, he needed victory in the field and to convince the Allies that his resources were by no means exhausted.
]]
Following the successes in Italy and along the Rhine, LouisXIV was now hopeful of similar results in Flanders. Far from standing on the defensive thereforeand unbeknown to MarlboroughLouisXIV was persistently goading his marshal into action. "[Villeroi] began to imagine," wrote St Simon, "that the King doubted his courage, and resolved to stake all at once in an effort to vindicate himself." Accordingly, on 18 May, Villeroi set off from Leuven at the head of 70 battalions, 132 squadrons and 62 cannoncomprising an overall force of some 60,000 troopsand crossed the river Dyle to seek battle with the enemy. Spurred on by his growing confidence in his ability to out-general his opponent, and by Versailles’ determination to avenge Blenheim, Villeroi and his generals anticipated success.
Neither opponent expected the clash at the exact moment or place where it occurred. The French moved first to Tienen, (as if to threaten Zoutleeuw, abandoned by the French in October 1705), before turning southwards, heading for Jodoignethis line of march took Villeroi's army towards the narrow aperture of dry ground between the rivers Mehaigne and Petite Gette close to the small villages of Ramillies and Taviers; but neither commander quite appreciated how far his opponent had travelled. Villeroi still believed (on 22 May) the Allies were a full day's march away when in fact they had camped near Corswaren waiting for the Danish squadrons to catch up; for his part, Marlborough deemed Villeroi still at Jodoigne when in reality he was now approaching the plateau of Mont St. André with the intention of pitching camp near Ramillies (see map at right).
The following day, at 01:00, Marlborough dispatched Cadogan, his Quartermaster-General, with an advanced guard to reconnoitre the same dry ground that Villeroi's army was now heading toward, country that was well known to the Duke from previous campaigns. Two hours later the Duke followed with the main body: 74 battalions, 123 squadrons, 90 pieces of artillery and 20 mortars, totalling 62,000 troops. About 08:00, after Cadogan had just passed Merdorp, his force made brief contact with a party of French hussars gathering forage on the edge of the plateau of Jandrenouille. After a brief exchange of shots the French retired and Cadogan's dragoons pressed forward. With a short lift in the mist, Cadogan soon discovered the smartly ordered lines of Villeroi's advance guard some off; a galloper hastened back to warn Marlborough. Two hours later the Duke, accompanied by the Dutch field commander Field Marshal Overkirk, Quartermaster-General Daniël van Dopff, and the Allied staff, rode up to Cadogan where on the horizon to the westward he could discern the massed ranks of the French army deploying for battle along the front.
Battle
Battlefield
The battlefield of Ramillies is very similar to that of Blenheim, for here too there is an immense area of arable land unimpeded by woods or hedges. Villeroi's right rested on the villages of Franquenée and Taviers, with the river Mehaigne protecting his flank. A large open plain, about wide, lay between Taviers and Ramillies, but unlike Blenheim, there was no stream to hinder the cavalry. His centre was secured by Ramillies itself, lying on a slight eminence which gave distant views to the north and east. The French left flank was protected by broken country, and by a stream, the Petite Gheete, which runs deep between steep and slippery slopes. On the French side of the stream the ground rises to Offus, the village which, together with Autre-Eglise farther north, anchored Villeroi's left flank. To the west of the Petite Gheete rises the plateau of Mont St. André; a second plain, the plateau of Jandrenouilleupon which the Anglo-Dutch army amassedrises to the east.Overkirk drew the 69 squadrons of the Dutch and Danish horse, supported by 19 battalions of Dutch infantry and two artillery pieces.
]]
Meanwhile, Villeroi deployed his forces. In Taviers on his right, he placed two battalions of the Greder Suisse Régiment, with a smaller force forward in Franquenée; the whole position was protected by the boggy ground of the river Mehaigne, thus preventing an Allied flanking movement. In the open country between Taviers and Ramillies, he placed 82 squadrons under General de Guiscard supported by several interleaved brigades of French, Swiss and Bavarian infantry. Along the Ramillies–Offus–Autre Eglise ridge-line, Villeroi positioned Walloon and Bavarian infantry, supported by the Elector of Bavaria's 50 squadrons of Bavarian and Walloon cavalry placed behind on the plateau of Mont St. André. Ramillies, Offus and Autre-Eglise were all packed with troops and put in a state of defence, with alleys barricaded and walls loop-holed for muskets. Villeroi also positioned powerful batteries near Ramillies. These guns (some of which were of the three barrelled kind first seen at Elixheim the previous year) enjoyed good arcs of fire, able to fully cover the approaches of the plateau of Jandrenouille over which the Allied infantry would have to pass.
Marlborough, however, noticed several important weaknesses in the French dispositions. Tactically, it was imperative for Villeroi to occupy Taviers on his right and Autre-Eglise on his left, but by adopting this posture he had been forced to over-extend his forces. Moreover, this dispositionconcave in relation to the Allied armygave Marlborough the opportunity to form a more compact line, drawn up in a shorter front between the 'horns' of the French crescent; when the Allied blow came it would be more concentrated and carry more weight. Additionally, the Duke's disposition facilitated the transfer of troops across his front far more easily than his foe, a tactical advantage that would grow in importance as the events of the afternoon unfolded.
Taviers
At 13:00 the batteries went into action; a little later two Allied columns set out from the extremities of their line and attacked the flanks of the Franco-Bavarian army. To the south, 4 Dutch battalions, under the command of Colonel Wertmüller, came forward with their two field guns to seize the hamlet of Franquenée. The small Swiss garrison in the village, shaken by the sudden onslaught and unsupported by the battalions to their rear, were soon compelled back towards the village of Taviers. Taviers was of particular importance to the Franco-Bavarian position: it protected the otherwise unsupported flank of General de Guiscard's cavalry on the open plain, while at the same time, it allowed the French infantry to pose a threat to the flanks of the Dutch and Danish squadrons as they came forward into position. But hardly had the retreating Swiss rejoined their comrades in that village when the Dutch Guards renewed their attack. The fighting amongst the alleys and cottages soon deteriorated into a fierce bayonet and clubbing mêlée, but the superiority in Dutch firepower soon told. The accomplished French officer, Colonel de la Colonie, standing on the plain nearby remembered: "This village was the opening of the engagement, and the fighting there was almost as murderous as the rest of the battle put together." By about 15:00 the Swiss had been pushed out of the village into the marshes beyond.
. The Battle of Ramillies was Villeroi's last command.]]
Villeroi's right flank fell into chaos and was now open and vulnerable. Alerted to the situation de Guiscard ordered an immediate attack with 14 squadrons of French dragoons currently stationed in the rear. Two other battalions of the Greder Suisse Régiment were also sent, but the attack was poorly co-ordinated and consequently went in piecemeal. The Anglo-Dutch commanders now sent dismounted Dutch dragoons into Taviers, which, together with the Guards and their field guns, poured concentrated musketry- and canister-fire into the advancing French troops. Colonel d’Aubigni, leading his regiment, fell mortally wounded.
As the French ranks wavered, the leading squadrons of Württemberg's Danish horsenow unhampered by enemy fire from either villagewere also sent into the attack and fell upon the exposed flank of the Franco-Swiss infantry and dragoons. De la Colonie, with his Grenadiers Rouge regiment, together with the Cologne Guards who were brigaded with them, was now ordered forward from his post south of Ramillies to support the faltering counter-attack on the village. But on his arrival, all was chaos: "Scarcely had my troops got over when the dragoons and Swiss who had preceded us, came tumbling down upon my battalions in full flight... My own fellows turned about and fled along with them."
Offus and Autre-Eglise
]]
While the attack on Taviers went on the Earl of Orkney launched his first line of English across the Petite Gheete in a determined attack against the barricaded villages of Offus and Autre-Eglise on the Allied right. Villeroi, posting himself near Offus, watched anxiously the redcoats' advance, mindful of the counsel he had received on 6 May from LouisXIV: "Have particular care to that part of the line which will endure the first shock of the English troops." The vigour of the English assault, however, was such that they threatened to break through the line of the villages and out onto the open plateau of Mont St André beyond. This was potentially dangerous for the Allied infantry who would then be at the mercy of the Elector's Bavarian and Walloon squadrons patiently waiting on the plateau for the order to move.
Although Henry Lumley's English cavalry had managed to cross the marshy ground around the Petite Gheete, it was soon evident to Marlborough that sufficient cavalry support would not be practicable and that the battle could not be won on the Allied right. The Duke, therefore, called off the attack against Offus and Autre-Eglise. To make sure that Orkney obeyed his order to withdraw, Marlborough sent his Quartermaster-General in person with the command. Despite Orkney's protestations, Cadogan insisted on compliance and, reluctantly, Orkney gave the word for his troops to fall back to their original positions on the edge of the plateau of Jandrenouille. It is still not clear how far Orkney's advance was planned only as a feint; according to historian David Chandler it is probably more accurate to surmise that Marlborough launched Orkney in a serious probe with a view to sounding out the possibilities of the sector.
Ramillies
Meanwhile, the Dutch assault on Ramillies was gaining pace. Marlborough's younger brother, General of Infantry Charles Churchill, ordered four brigades of foot to attack the village. The assault consisted of 12 battalions of Dutch infantry commanded by Major Generals Scholten and Sparre; two brigades of Saxons under Count Schulenburg; a Scottish brigade in Dutch service led by the 2nd Duke of Argyle; and a small brigade of Protestant Swiss. The 20 French and Bavarian battalions in Ramillies, supported by the Irish who had left Ireland in the Flight of the Wild Geese to join Clare's Dragoons who fought as infantry and captured a colour from the British 3rd Regiment of Foot and a small brigade of Cologne and Bavarian Guards under the Marquis de Maffei, put up a determined defence, initially driving back the attackers with severe losses as commemorated in the song ''Clare's Dragoons''.
Seeing that Scholten and Sparre were faltering, Marlborough now ordered Orkney's second-line British and Danish battalions (who had not been used in the assault on Offus and Autre-Eglise) to move south towards Ramillies. Shielded as they were from observation by a slight fold in the land, their commander, Brigadier-General Van Pallandt, ordered the regimental colours to be left in place on the edge of the plateau to convince their opponents they were still in their initial position. Therefore, unbeknown to the French who remained oblivious to the Allies' real strength and intentions on the opposite side of the Petite Gheete, Marlborough was throwing his full weight against Ramillies and the open plain to the south. Villeroi meanwhile, was still moving more reserves of infantry in the opposite direction towards his left flank; crucially, it would be some time before the French commander noticed the subtle change in emphasis of the Allied dispositions.
Around 15:30 Overkirk advanced his massed squadrons on the open plain in support of the infantry attack on Ramillies. 48 Dutch squadrons, supported on their left by 21 Danish squadrons, led by Count Tilly and Lieutenants Generals Hompesch, d'Auvergne, Ostfriesland and Dopffsteadily advanced towards the enemy (taking care not to prematurely tire the horses), before breaking into a trot to gain the impetus for their charge. The Marquis de Feuquières writing after the battle described the scene: "They advanced in four lines... As they approached they advanced their second and fourth lines into the intervals of their first and third lines; so that when they made their advance upon us, they formed only one front, without any intermediate spaces." This made it nearly impossible for the French cavalry to perform flanking manoeuvres.
The initial clash favoured the Dutch and Danish squadrons. The disparity of numbersexacerbated by Villeroi stripping their ranks of infantry to reinforce his left flankenabled Overkirk's cavalry to throw the first line of French horse back in some disorder towards their second-line squadrons. This line also came under severe pressure and, in turn, was forced back to their third-line of cavalry and the few battalions still remaining on the plain. But these French horsemen were amongst the best in LouisXIV's armythe Maison du Roi, supported by four elite squadrons of Bavarian Cuirassiers. Ably led by de Guiscard, the French cavalry rallied, thrusting back the Allied squadrons in successful local counterattacks. On Overkirk's right flank, close to Ramillies, ten of his squadrons suddenly broke ranks and were scattered, riding headlong to the rear to recover their order, leaving the left flank of the Allied assault on Ramillies dangerously exposed. Notwithstanding the lack of infantry support, de Guiscard threw his cavalry forward in an attempt to split the Allied army in two.
A crisis threatened the centre, but from his vantage point Marlborough was at once aware of the situation. It was a critical moment of the battle. "Major-General Murray," recalled one eyewitness: "...seeing him fall, marched up in all haste with two Swiss battalions to save him and stop the enemy who were hewing all down in their way." Samuel Constant de Rebecque helped Marlborough back on his feet, while Marlborough's newly appointed aide-de-camp, Richard Molesworth, galloped to the rescue, mounted the Duke on his horse and made good their escape, before Murray's disciplined ranks threw back the pursuing French troopers.
Breakthrough
The time was about 16:30, and the two armies were in close contact across the whole front, from the skirmishing in the marshes in the south, through the vast cavalry battle on the open plain; to the fierce struggle for Ramillies at the centre, and to the north, where, around the cottages of Offus and Autre-Eglise, Orkney and de la Guiche faced each other across the Petite Gheete ready to renew hostilities.
The arrival of the transferring squadrons now began to tip the balance in favour of the Allies. Tired, and suffering a growing list of casualties, the numerical inferiority of Guiscard's squadrons battling on the plain at last began to tell. After earlier failing to hold or retake Franquenée and Taviers, Guiscard's right flank had become dangerously exposed and a fatal gap had opened on the right of their line. Taking advantage of this breach, Württemberg's Danish cavalry now swept forward, wheeling to penetrate the flank of the Maison du Roi whose attention was almost entirely fixed on holding back the Dutch. Sweeping forwards, virtually without resistance, the 21 Danish squadrons reformed behind the French around the area of the Tomb of Ottomond, facing north across the plateau of Mont St André towards the exposed flank of Villeroi's army.
The final Allied reinforcements for the cavalry contest to the south were at last in position; Marlborough's superiority on the left could no longer be denied, and his fast-moving plan took hold of the battlefield. Now, far too late, Villeroi tried to redeploy his 50 unused squadrons, but a desperate attempt to form line facing south, stretching from Offus to Mont St André, floundered amongst the baggage and tents of the French camp carelessly left there after the initial deployment. The Allied commander ordered his cavalry forward against the now heavily outnumbered French and Bavarian horsemen. De Guiscard's right flank, without proper infantry support, could no longer resist the onslaught and, turning their horses northwards, they broke and fled in complete disorder. Even the squadrons currently being scrambled together by Villeroi behind Ramillies could not withstand the onslaught. "We had not got forty yards on our retreat," remembered Captain Peter Drake, an Irishman serving with the French"when the words sauve qui peut went through the great part, if not the whole army, and put all to confusion"
In Ramillies the Allied infantry, now reinforced by the English troops brought down from the north, at last broke through. The Régiment de Picardie stood their ground but were caught between Colonel Borthwick's Scots-Dutch regiment and the English reinforcements. Borthwick was killed, as was Charles O’Brien, the Irish Viscount Clare in French service, fighting at the head of his regiment. The Marquis de Maffei attempted one last stand with his Bavarian and Cologne Guards, but it proved in vain. Noticing a rush of horsemen fast approaching from the south, he later recalled: "...I went towards the nearest of these squadrons to instruct their officer, but instead of being listened to [I] was immediately surrounded and called upon to ask for quarter."
Pursuit
The roads leading north and west were choked with fugitives. Orkney now sent his English troops back across the Petite Gheete stream to once again storm Offus where de la Guiche's infantry had begun to drift away in the confusion. To the right of the infantry Lord John Hay's 'Scots Greys' also picked their way across the stream and charged the Régiment du Roi within Autre-Eglise. "Our dragoons," wrote John Deane, "pushing into the village... made terrible slaughter of the enemy." Far to the south, the remnants of de la Colonie's brigade headed in the opposite direction towards the French held fortress of Namur.
The retreat became a rout. Individual Allied commanders drove their troops forward in pursuit, allowing their beaten enemy no chance to recover. Soon the Allied infantry could no longer keep up, but their cavalry were off the leash, heading through the gathering night for the crossings on the river Dyle. At last, however, Marlborough called a halt to the pursuit shortly after midnight near Meldert, from the field.Aftermath
as Minerva.]]
, Lier, Antwerp, Furnes (Veurne), Aalst, Ath, Oudenarde (Oudenaarde), Bruges (Brugge), Ghent (Gent), Damme, Leuven (Louvain).]]
What was left of Villeroi's army was now broken in spirit; the imbalance of the casualty figures amply demonstrates the extent of the disaster for LouisXIV's army: (see below). In addition, hundreds of French soldiers were fugitives, many of whom would never remuster to the colours. Villeroi also lost 52 artillery pieces and his entire engineer pontoon train. In the words of Marshal Villars, the French defeat at Ramillies was "the most shameful, humiliating and disastrous of routs".
Town after town now succumbed to the Allies. Leuven fell on 25 May 1706; three days later, the Allies entered Brussels, the capital of the Spanish Netherlands. Marlborough realised the great opportunity created by the early victory of Ramillies: "We now have the whole summer before us," wrote the Duke from Brussels to Robert Harley: "...and with the blessing of God I shall make the best use of it." Malines, Lierre, Ghent, Alost, Damme, Oudenaarde, Bruges, and on 6 June Antwerp, all subsequently fell to Marlborough's victorious army and, like Brussels, proclaimed the Austrian candidate for the Spanish throne, the Archduke Charles, as their sovereign. Villeroi was helpless to arrest the process of collapse. When LouisXIV learnt of the disaster he recalled Marshal Vendôme from northern Italy to take command in Flanders; but it would be weeks before the command changed hands.
As news spread of the Allies' triumph, the Prussians, Hessians and Hanoverian contingents, long delayed by their respective rulers, eagerly joined the pursuit of the broken French and Bavarian forces. "This," wrote Marlborough wearily, "I take to be owing to our late success." Meanwhile, Overkirk took the port of Ostend on 4 July thus opening a direct route to the English Channel for communication and supply, but the Allies were making scant progress against Dendermonde whose governor, the Marquis de Valée, was stubbornly resisting. Only later when Cadogan and Churchill went to take charge did the town's defences begin to fail.
Vendôme formally took over command in Flanders on 4 August; Villeroi would never again receive a major command: "I cannot foresee a happy day in my life save only that of my death." LouisXIV was more forgiving to his old friend: "At our age, Marshal, we must no longer expect good fortune." In the meantime, Marlborough invested the elaborate fortress of Menin which, after a costly siege, capitulated on 22 August. Dendermonde finally succumbed on 6 September followed by Aththe last conquest of 1706on 2 October. By the time Marlborough had closed down the Ramillies campaign he had denied the French most of the Spanish Netherlands west of the Meuse and north of the Sambreit was an unsurpassed operational triumph for the English Duke but once again it was not decisive as these gains did not defeat France. Emperor JosephI, acting on behalf of his younger brother King CharlesIII, absent in Spain, claimed that reconquered Brabant and Flanders should be put under immediate possession of a governor named by himself. The Dutch, however, who had supplied the major share of the troops and money to secure the victory (the Austrians had produced nothing of either) claimed the government of the region till the war was over, and that after the peace they should continue to garrison Barrier Fortresses stronger than those which had fallen so easily to LouisXIV's forces in 1701. Marlborough mediated between the two parties but favoured the Dutch position. To sway the Duke's opinion, the Emperor offered Marlborough the governorship of the Spanish Netherlands. It was a tempting offer, but in the name of Allied unity, it was one he refused. In the end England and the Dutch Republic took control of the newly won territory for the duration of the war; after which it was to be handed over to the direct rule of CharlesIII, subject to the reservation of a Dutch Barrier, the extent and nature of which had yet to be settled.
Meanwhile, on the Upper Rhine, Villars had been forced onto the defensive as battalion after battalion had been sent north to bolster collapsing French forces in Flanders; there was now no possibility of his undertaking the re-capture of Landau. Further good news for the Allies arrived from northern Italy where, on 7 September, Prince Eugene had routed a French army before the Piedmontese capital, Turin, driving the Franco-Spanish forces from northern Italy. Only from Spain did LouisXIV receive any good news where Das Minas and Galway had been forced to retreat from Madrid towards Valencia, allowing PhilipV to re-enter his capital on 4 October. All in all though, the situation had changed considerably and LouisXIV began to look for ways to end what was fast becoming a ruinous war for France. For Queen Anne also, the Ramillies campaign had one overriding significance: "Now we have God be thanked so hopeful a prospect of peace." Instead of continuing the momentum of victory, however, cracks in Allied unity would enable LouisXIV to reverse some of the major setbacks suffered at Turin and Ramillies.
Casualties
The total number of French casualties cannot be calculated precisely, so complete was the collapse of the Franco-Bavarian army that day.<ref namefalkner105/> David G. Chandler's Marlborough as Military Commander and A Guide to the Battlefields of Europe are consistent with regards to French casualty figures, i.e. 12,000 dead and wounded plus some 7,000 taken prisoner. James Falkner, in Ramillies 1706: Year of Miracles, also notes 12,000 dead and wounded and "up to 10,000" taken prisoner. In Notes on the history of military medicine, Garrison puts French casualties at 13,000, including 2,000 killed, 3,000 wounded and 6,000 missing. In The Collins Encyclopaedia of Military History, Dupuy puts Villeroi's dead and wounded at 8,000, with a further 7,000 captured. Neil Litten, using French archives, suggests 7,000 killed and wounded and 6,000 captured, with a further 2,000 choosing to desert. John Millner's memoirsCompendious Journal (1733)is more specific, recording 12,087 of Villeroi's army were killed or wounded, with another 9,729 taken prisoner. In Marlborough, however, Correlli Barnett puts the total casualty figure as high as 30,000–15,000 dead and wounded with an additional 15,000 taken captive. Trevelyan estimates Villeroi's casualties at 13,000 but adds "his losses by desertion may have doubled that number". La Colonie omits a casualty figure in his Chronicles of an old Campaigner but Saint-Simon in his Memoirs states 4,000 killed adding "many others were wounded and many important persons were taken prisoner". Voltaire, however, in Histoire du siècle du LouisXIV records "the French lost there twenty thousand men". Gaston Bodart states 2,000 killed or wounded, 6,000 captured and 7,000 scattered for a total of 13,000 casualties. Périni writes that both sides lost 2 to 3,000 killed or wounded (the Dutch losing precisely 716 killed and 1,712 wounded), and that 5,600 French were captured.See also*The battle was used as the name of several Royal Navy ships, HMS Ramillies.NotesFootnotesReferencesPrimary
*La Colonie, Jean Martin de. The Chronicles of an Old Campaigner, (trans. W. C. Horsley), (1904)
* (1857) Mémoires relatifs à la Guerre de succession de 1706–1709 et 1711, de Sicco van Goslinga, publiés par mm. U. A. Evertsz et G. H. M. Delprat, au nom de la Société d’histoire, d’archéologie et de linquistique de Frise, (Published by G.T.N. Suringar, 1857)
*Saint-Simon. Memoirs, vol i. Prion Books Ltd., (1999).
Secondary
*Barnett, Correlli. Marlborough. Wordsworth Editions Limited, (1999).
*Chandler, David G. A Guide to the Battlefields of Europe. Wordsworth Editions Limited, (1998).
*Chandler, David G. Marlborough as Military Commander. Spellmount Ltd, (2003).
*Falkner, James. Ramillies 1706: Year of Miracles. Pen & Sword Books Ltd, (2006).
*Gregg, Edward. Queen Anne. Yale University Press, (2001).
*Lynn, John A. The Wars of Louis XIV, 1667–1714. Longman, (1999).
*
*
*Trevelyan, G. M. England Under Queen Anne: Ramillies and the Union with Scotland. Longmans, Green and co., (1932)
*
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*
*
*
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Battle of Ramillies
Category:Battles of the War of the Spanish Succession
Category:Battles involving Bavaria
Category:Battles involving France
Category:Battles involving England
Category:Battles involving the Dutch Republic
Category:Battles involving the Spanish Netherlands
Category:1706 in France
Battle of Ramillies
Battle
Category:18th century in the Southern Netherlands
Category:Battles involving Spain | https://en.wikipedia.org/wiki/Battle_of_Ramillies | 2025-04-05T18:26:40.605035 |
4051 | Brian Kernighan | | birth_place = Toronto, Ontario, Canada
| residence | citizenship Canada
| nationality = Canadian
| field = Computer science
| work_institution = Princeton University
| alma_mater = University of Toronto (BASc)<br />Princeton University (PhD)
| thesis_title = Some Graph Partitioning Problems Related to Program Segmentation
| thesis_url = http://www.worldcat.org/oclc/39166855
| thesis_year = 1969
| doctoral_advisor Peter Weiner
| doctoral_students | known_for
| prizes | website
}}
Brian Wilson Kernighan (; born January 30, 1942)
Kernighan authored many Unix programs, including ditroff. He is coauthor of the AWK and AMPL programming languages. The "K" of K&R C and of AWK both stand for "Kernighan".
In collaboration with Shen Lin he devised well-known heuristics for two NP-complete optimization problems: graph partitioning and the travelling salesman problem. In a display of authorial equity, the former is usually called the Kernighan–Lin algorithm, while the latter is known as the Lin–Kernighan heuristic.
Kernighan has been a professor of computer science at Princeton University since 2000 and is the director of undergraduate studies in the department of computer science. In 2015, he co-authored the book ''The Go Programming Language.Early life and education
in 2012 at Bell Labs.]]
Kernighan was born in Toronto. He attended the University of Toronto between 1960 and 1964, earning his bachelor's degree in engineering physics.
Career and research
Kernighan has held a professorship in the department of computer science at Princeton since 2000. Each fall he teaches a course called "Computers in Our World", which introduces the fundamentals of computing to non-majors.
Kernighan was the software editor for Prentice Hall International. His "Software Tools" series spread the essence of "C/Unix thinking" with makeovers for BASIC, FORTRAN, and Pascal, and most notably his "Ratfor" (rational FORTRAN) was put in the public domain.
He has said that if stranded on an island with only one programming language it would have to be C.
Kernighan coined the term "Unix" and helped popularize Thompson's Unix philosophy. Kernighan is also known for coining the expression "What You See Is All You Get" (WYSIAYG), which is a sarcastic variant of the original "What You See Is What You Get" (WYSIWYG). Kernighan's term is used to indicate that WYSIWYG systems might throw away information in a document that could be useful in other contexts.
In 1972, Kernighan described memory management in strings using "hello" and "world", in the B programming language, which became the iconic example we know today. Kernighan's original 1978 implementation of was sold at The Algorithm Auction, the world's first auction of computer algorithms.
In 1996, Kernighan taught CS50 which is the Harvard University introductory course in computer science. Kernighan was an influence on David J. Malan who subsequently taught the course and scaled it up to run at multiple universities and in multiple digital formats.
Kernighan was elected a member of the National Academy of Engineering in 2002 for contributions to software and to programming languages. He was also elected a member of the American Academy of Arts and Sciences in 2019.
In 2022, Kernighan stated that he was actively working on improvements to the AWK programming language, which he took part in creating in 1977.
Books and reports
* The Elements of Programming Style, with P. J. Plauger
* Software Tools, a book and set of tools for Ratfor, co-created in part with P. J. Plauger
* Software Tools in Pascal, a book and set of tools for Pascal, with P. J. Plauger
* The C Programming Language, with C creator Dennis Ritchie, the first book on C
* The Practice of Programming, with Rob Pike
* The Unix Programming Environment, a tutorial book, with Rob Pike
* [http://wiki.c2.com/?WhyPascalIsNotMyFavoriteProgrammingLanguage "Why Pascal is Not My Favorite Programming Language"], a popular criticism of Niklaus Wirth's Pascal. Some parts of the criticism are obsolete due to ISO 7185 (Programming Languages - Pascal); the criticism was written before ISO 7185 was created. (AT&T Computing Science Technical Report #100)
Programs
* 1972: The first documented "Hello, world!" program, in Kernighan's [https://web.archive.org/web/20150611114644/https://www.bell-labs.com/usr/dmr/www/btut.pdf "A Tutorial Introduction to the Language B"]
* 1973: ditroff, or "device independent troff", which allowed troff to be used with any device
* 1974: The eqn typesetting language for troff, with Lorinda Cherry
* The Go Programming Language (2015) with Alan Donovan
* Understanding the Digital World: What You Need to Know about Computers, the Internet, Privacy, and Security (2017)
* Millions, Billions, Zillions: Defending Yourself in a World of Too Many Numbers (2018)
* UNIX: A History and a Memoir (2019)
See also
* List of pioneers in computer science
References
External links
*[http://9p.io/who/bwk/index.html Brian Kernighan's home page at Bell Labs]
*[https://www.youtube.com/watch?v=O9upVbGSBFo Lex Fridman Podcast #109: Brian Kernighan - UNIX, C, AWK, AMPL, and Go Programming]
*[http://www.lysator.liu.se/c/bwk-on-pascal.html "Why Pascal is Not My Favorite Programming Language"] — By Brian Kernighan, AT&T Bell Labs, 2 April 1981
*[https://web.archive.org/web/20090428163341/https://www.princeton.edu/~mike/unixhistory "Leap In and Try Things" — Interview with Brian Kernighan] — on "Harmony at Work Blog", October 2009.
*[http://www-2.cs.cmu.edu/~mihaib/kernighan-interview/index.html An Interview with Brian Kernighan] — By Mihai Budiu, for PC Report Romania, August 2000
* – Interview by
* [http://technetcast.ddj.com/tnc_play_stream.html?stream_id=25 Video] — TechNetCast At Bell Labs: Dennis Ritchie and Brian Kernighan (1999-05-14)
*[https://www.princeton.edu/WebMedia/special/ Video (Princeton University, September 7, 2003)] — "Assembly for the Class of 2007: 'D is for Digital and Why It Matters'"
* [http://doc.cat-v.org/inferno/4th_edition/limbo_language/descent A Descent into Limbo] by Brian Kernighan
* [https://web.archive.org/web/20160303234158/http://www.adeptis.ru/vinci/m_part6.html Photos of Brian Kernighan]
*
* [https://web.archive.org/web/20131126220450/http://princetonstartuptv.com/post/49379235060/the-legendary-brian-kernighan-on-teaching-writing Video interview with Brian Kernighan for Princeton Startup TV] (2012-03-20)
* [https://web.archive.org/web/20130609233704/http://brian.kernighan.usesthis.com/ The Setup, Brian Kernighan]
* [https://www.cs.princeton.edu/~bwk/Prince/princecols.html Hello, World!] A collection of Kernighan's opinion columns from The Daily Princetonian, 2006–2013.
Category:1942 births
Category:Living people
Category:Canadian computer scientists
Category:Canadian computer programmers
Category:Computer programmers
Category:Inferno (operating system) people
Category:Canadian people of Irish descent
Category:Writers from Toronto
Category:Plan 9 people
Category:Princeton University School of Engineering and Applied Science alumni
Category:Princeton University faculty
Category:Programming language designers
Category:Scientists at Bell Labs
Category:Canadian technology writers
Category:University of Toronto alumni
Category:Unix people
Category:C (programming language)
Category:Members of the United States National Academy of Engineering
Category:Berkman Fellows
Category:Scientists from Toronto | https://en.wikipedia.org/wiki/Brian_Kernighan | 2025-04-05T18:26:40.616245 |
4052 | BCPL | | operating_system | license
| website =
}}
BCPL ("Basic Combined Programming Language") is a procedural, imperative, and structured programming language. Originally intended for writing compilers for other languages, BCPL is no longer in common use. However, its influence is still felt because a stripped down and syntactically changed version of BCPL, called B, was the language on which the C programming language was based. BCPL introduced several features of many modern programming languages, including using curly braces to delimit code blocks. BCPL was first implemented by Martin Richards of the University of Cambridge in 1967.
Design
BCPL was designed so that small and simple compilers could be written for it; reputedly some compilers could be run in 16 kilobytes. Furthermore, the original compiler, itself written in BCPL, was easily portable. BCPL was thus a popular choice for bootstrapping a system. A major reason for the compiler's portability lay in its structure. It was split into two parts: the front end parsed the source and generated O-code, an intermediate language. The back end took the O-code and translated it into the machine code for the target machine. Only of the compiler's code needed to be rewritten to support a new machine, a task that usually took between 2 and 5 person-months. This approach became common practice later (e.g. Pascal, Java).
The language is unusual in having only one data type: a word, a fixed number of bits, usually chosen to align with the same platform architecture's machine word and of adequate capacity to represent any valid storage address. For many machines of the time, this data type was a 16-bit word. This choice later proved to be a significant problem when BCPL was used on machines in which the smallest addressable item was not a word but a byte or on machines with larger word sizes such as 32-bit or 64-bit.
The interpretation of any value was determined by the operators used to process the values. (For example, <code>+</code> added two values together, treating them as integers; <code>!</code> indirected through a value, effectively treating it as a pointer.) In order for this to work, the implementation provided no type checking.
The mismatch between BCPL's word orientation and byte-oriented hardware was addressed in several ways. One was by providing standard library routines for packing and unpacking words into byte strings. Later, two language features were added: the bit-field selection operator and the infix byte indirection operator (denoted by <code>%</code>).
BCPL handles bindings spanning separate compilation units in a unique way. There are no user-declarable global variables; instead, there is a global vector, similar to "blank common" in Fortran. All data shared between different compilation units comprises scalars and pointers to vectors stored in a pre-arranged place in the global vector. Thus, the header files (files included during compilation using the "GET" directive) become the primary means of synchronizing global data between compilation units, containing "GLOBAL" directives that present lists of symbolic names, each paired with a number that associates the name with the corresponding numerically addressed word in the global vector. As well as variables, the global vector contains bindings for external procedures. This makes dynamic loading of compilation units very simple to achieve. Instead of relying on the link loader of the underlying implementation, effectively, BCPL gives the programmer control of the linking process.
The global vector also made it very simple to replace or augment standard library routines. A program could save the pointer from the global vector to the original routine and replace it with a pointer to an alternative version. The alternative might call the original as part of its processing. This could be used as a quick ad hoc debugging aid.
BCPL was the first brace programming language and the braces survived the syntactical changes and have become a common means of denoting program source code statements. In practice, on limited keyboards of the day, source programs often used the sequences <code>$(</code> and <code>$)</code> or <code>[</code> and <code>]</code> in place of the symbols <code>{</code> and <code>}</code>. The single-line <code>//</code> comments of BCPL, which were not adopted by C, reappeared in C++ and later in C99.
The book BCPL: The language and its compiler describes the philosophy of BCPL as follows:
HistoryBCPL was first implemented by Martin Richards of the University of Cambridge in 1967. BCPL was a response to difficulties with its predecessor, Cambridge Programming Language, later renamed Combined Programming Language (CPL), which was designed during the early 1960s. Richards created BCPL by "removing those features of the full language which make compilation difficult". The first compiler implementation, for the IBM 7094 under Compatible Time-Sharing System, was written while Richards was visiting Project MAC at the Massachusetts Institute of Technology in the spring of 1967. The language was first described in a paper presented to the 1969 Spring Joint Computer Conference.
BCPL has been rumored to have originally stood for "Bootstrap Cambridge Programming Language", but CPL was never created since development stopped at BCPL, and the acronym was later reinterpreted for the BCPL book.
BCPL is the language in which the original "Hello, World!" program was written. The first MUD was also written in BCPL (MUD1).
Several operating systems were written partially or wholly in BCPL (for example, TRIPOS and the earliest versions of AmigaDOS). BCPL was also the initial language used in the Xerox PARC Alto project. Among other projects, the Bravo document preparation system was written in BCPL.
An early compiler, bootstrapped in 1969, by starting with a paper tape of the O-code of Richards's Atlas 2 compiler, targeted the ICT 1900 series. The two machines had different word-lengths (48 vs 24 bits), different character encodings, and different packed string representations—and the successful bootstrapping increased confidence in the practicality of the method.
By late 1970, implementations existed for the Honeywell 635 and Honeywell 645, IBM 360, PDP-10, TX-2, CDC 6400, UNIVAC 1108, PDP-9, KDF 9 and Atlas 2. In 1974 a dialect of BCPL was implemented at BBN without using the intermediate O-code. The initial implementation was a cross-compiler hosted on BBN's TENEX PDP-10s, and directly targeted the PDP-11s used in BBN's implementation of the second generation IMPs used in the ARPANET.
There was also a version produced for the BBC Micro in the mid-1980s, by Richards Computer Products, a company started by John Richards, the brother of Martin Richards. The BBC Domesday Project made use of the language. Versions of BCPL for the Amstrad CPC and Amstrad PCW computers were also released in 1986 by UK software house Arnor Ltd. MacBCPL was released for the Apple Macintosh in 1985 by Topexpress Ltd, of Kensington, England.
Both the design and philosophy of BCPL strongly influenced B, which in turn influenced C. Programmers at the time debated whether an eventual successor to C would be called "D", the next letter in the alphabet, or "P", the next letter in the parent language name. The language most accepted as being C's successor is C++ (with <code>++</code> being C's increment operator), although meanwhile, a D programming language also exists.
In 1979, implementations of BCPL existed for at least 25 architectures; the language gradually fell out of favour as C became popular on non-Unix systems.
Martin Richards maintains a modern version of BCPL on his website, last updated in 2023. This can be set up to run on various systems including Linux, FreeBSD, and Mac OS X. The latest distribution includes graphics and sound libraries, and there is a comprehensive manual. He continues to program in it, including for his research on musical automated score following.
A common informal MIME type for BCPL is .
Examples
Hello world
Richards and Whitby-Strevens provide an example of the "Hello, World!" program for BCPL using a standard system header, 'LIBHDR':
<pre>
GET "LIBHDR"
LET START() BE WRITES("Hello, World")
</pre>
Further examples
If these programs are run using Richards' current version of Cintsys (December 2018), LIBHDR, START and WRITEF must be changed to lower case to avoid errors.
Print factorials:
<pre>
GET "LIBHDR"
LET START() = VALOF $(
FOR I = 1 TO 5 DO
WRITEF("%N! = %I4*N", I, FACT(I))
RESULTIS 0
$)
AND FACT(N) N 0 -> 1, N * FACT(N - 1)
</pre>
Count solutions to the N queens problem:
<pre>
GET "LIBHDR"
GLOBAL $(
COUNT: 200
ALL: 201
$)
LET TRY(LD, ROW, RD) BE
TEST ROW = ALL THEN
COUNT := COUNT + 1
ELSE $(
LET POSS = ALL & ~(LD | ROW | RD)
UNTIL POSS = 0 DO $(
LET P = POSS & -POSS
POSS := POSS - P
TRY(LD + P << 1, ROW + P, RD + P >> 1)
$)
$)
LET START() = VALOF $(
ALL := 1
FOR I = 1 TO 12 DO $(
COUNT := 0
TRY(0, 0, 0)
WRITEF("%I2-QUEENS PROBLEM HAS %I5 SOLUTIONS*N", I, COUNT)
ALL := 2 * ALL + 1
$)
RESULTIS 0
$)
</pre>
References
Further reading
* Martin Richards, [https://www.bell-labs.com/usr/dmr/www/bcpl.html The BCPL Reference Manual] (Memorandum M-352, Project MAC, Cambridge, MA, USA, July, 1967) <!-- temporary copy: http://www.fh-jena.de/~kleine/history/languages/Richards-BCPL-ReferenceManual.pdf -->
* Martin Richards, BCPL - a tool for compiler writing and systems programming (Proceedings of the Spring Joint Computer Conference, Vol 34, pp 557–566, 1969)
* Martin Richards, Arthur Evans, Robert F. Mabee, [https://web.archive.org/web/20160305034639/http://publications.csail.mit.edu/lcs/specpub.php?id=709 The BCPL Reference Manual] (MAC TR-141, Project MAC, Cambridge, MA, USA, 1974)
* Martin Richards, Colin Whitby-Strevens, BCPL, the language and its compiler (Cambridge University Press, 1980)
External links
* [http://www.cl.cam.ac.uk/users/mr/BCPL.html Martin Richards' BCPL distribution]
* [https://www.bell-labs.com/usr/dmr/www/bcpl.html Martin Richards' BCPL Reference Manual, 1967] by Dennis M. Ritchie
* [http://www.catb.org/~esr/jargon/html/B/BCPL.html BCPL entry] in the Jargon File
* Nordier & Associates' x86 [https://web.archive.org/web/20200715142010/http://www.nordier.com/software/bcpl.html port]
* [http://cpcwiki.eu/imgs/3/3a/ArnorBCPL.pdf ArnorBCPL manual] (1986, Amstrad PCW/CPC)
* How BCPL evolved from CPL, Martin Richards [https://www.cl.cam.ac.uk/~mr10/cpl2bcpl.pdf]
* [https://www.bell-labs.com/usr/dmr/www/chist.html Ritchie's The Development of the C Language] has commentary about BCPL's influence on C
* [https://www.cl.cam.ac.uk/~mr10/bcplman.pdf The BCPL Cintsys and Cintpos User Guide]
* [http://www.bitsavers.org/pdf/xerox/alto/bcpl/BCPL_Reference_Manual_Sep75.pdf BCPL Reference Manual, 1975 Xerox Palo Alto Research Center]
Category:History of computing in the United Kingdom
Category:Procedural programming languages
Category:Programming languages created in 1967
Category:Structured programming languages
Category:Systems programming languages
Category:University of Cambridge Computer Laboratory | https://en.wikipedia.org/wiki/BCPL | 2025-04-05T18:26:40.623235 |
4054 | Battleship | ]]
A battleship is a large, heavily armored warship with a main battery consisting of large guns, designed to serve as capital ships. From their advent in the late 1880s, battleships were among the largest and most formidable weapon systems ever built, until they were surpassed by aircraft carriers beginning in the 1940s. The modern battleship traces its origin to the sailing ship of the line, which was developed into the steam ship of the line and soon thereafter the ironclad warship. After a period of extensive experimentation in the 1870s and 1880s, ironclad design was largely standardized by the British , which are usually referred to as the first "pre-dreadnought battleships". These ships carried an armament that usually included four large guns and several medium-caliber guns that were to be used against enemy battleships, and numerous small guns for self defense.
Naval powers around the world built dozens of pre-dreadnoughts in the 1890s and early 1900s, though they saw relatively little combat; only two major wars were fought during the period that included pre-dreadnought battles: the Spanish-American War in 1898 and the Russo-Japanese War of 1904–1905. The following year, the British launched the revolutionary all-big-gun battleship . This ship discarded the medium-caliber guns in exchange for a uniform armament of ten large guns. All other major navies quickly began (or had already started) "dreadnoughts" of their own, leading to a major naval arms race. During World War I, only one major fleet engagement took place: the Battle of Jutland in 1916, but neither side was able to achieve a decisive result.
In the Interwar period, the major naval powers concluded a series of agreements beginning with the Washington Naval Treaty that imposed limits on battleship building to stop a renewed arms race. During this period, relatively few battleships were built, but advances in technology led to the maturation of the fast battleship concept, and several of these ships were built in the 1930s. The treaty system eventually broke down after Japan refused to sign the Second London Naval Treaty in 1936. Although the rise of the aircraft carrier during World War II largely relegated battleships to secondary duties, they still saw significant action during that conflict. Notable engagements include the battles of Cape Spartivento and Cape Matapan in 1940 and 1941, respectively; the sortie by the German battleship in 1941; the Naval Battle of Guadalcanal in 1942; and the Battle of Leyte Gulf in 1944. After World War II, most battleships were placed in reserve, broken up, or used as target ships, and few saw significant active service during the Cold War. The four American s were reactivated during the Korean War in the early 1950s and again in the 1980s as part of the 600-ship Navy.
Even at the height of their dominance of naval combat, some strategists questioned the usefulness of battleships. Beginning in the mid-1880s, the (Young School) argued that construction of expensive capital ships should stop in favor of cheap cruisers and torpedo boats. Despite a period of popularity for the , the idea fell out of favor and the battleship remained the arbiter of naval combat until World War II. Even afterward, they remained potent symbols of a country's might and they retained significant psychological and diplomatic effects. A number of battleships—predominantly American—remain as museum ships.
Background
Ships of the line
A ship of the line was a large, unarmored wooden sailing ship which mounted a battery of up to 120 smoothbore guns and carronades, which came to prominence with the adoption of line of battle tactics in the early 17th century. From 1794, the alternative term 'line of battle ship' was contracted to 'battle ship' or 'battleship'. The sheer number of guns fired broadside meant a ship of the line could wreck any wooden enemy, holing her hull, knocking down masts, wrecking her rigging, and killing her crew. They also imparted a psychological effect on the crews of smaller vessels. Ships of the line were also fairly resilient to the guns of the day; for example, the British Royal Navy lost no first-rate (the largest type of ship of the line) to enemy action during the entire 18th century. Over time, ships of the line gradually became larger and carried more guns, but otherwise remained quite similar. Development of the first-rates was particularly conservative, as these ships represented a major investment. By the early 1800s, the traditional "seventy-four" (so-named because it carried 74 guns) was no longer considered to be a proper ship of the line, having been supplanted by 84- and 120-gun ships.
The first major change to the ship of the line concept was the introduction of steam power as an auxiliary propulsion system. Steam power was gradually introduced to the navy in the first half of the 19th century, initially for small craft and later for frigates. Early vessels used paddle wheels for propulsion, but by the 1840s, the first screw propeller equipped vessels began to appear. The value of these smaller steam-powered warships demonstrated their worth, when vessels like the British Nemesis proved to be critical to the Anglo-French success in the First Opium War in the 1840s.
The French Navy introduced steam to the line of battle with the 90-gun in 1850—the first true steam battleship. Napoléon, which was designed by Henri Dupuy de Lôme, was armed as a conventional ship-of-the-line, but her steam engines could give her a speed of , regardless of the wind. This was a potentially decisive advantage in a naval engagement. The introduction of steam accelerated the growth in size of battleships. France and the United Kingdom were the only countries to develop fleets of wooden, steam-screw battleships although several other navies operated small numbers of screw battleships, including Russia (9), the Ottoman Empire (3), Sweden (2), Naples (1), Denmark (1) and Austria (1).
Concurrent with the development of steam power, another major technological step heralded the end of the traditional ship of the line: guns capable of firing explosive shells. Pioneering work was done by the French artillery officer Henri-Joseph Paixhans beginning in 1809. The American artillerist George Bomford followed not far behind, designing the first shell-firing Columbiad in 1812. The British and Russians began to follow suit in the 1830s, though early smoothbore guns could not fire shells as far as solid shot, which hampered widespread adoption in any fleet. By the early 1840s, the French Paixhans gun and American Dahlgren gun had begun to be adopted by their respective navies. In the Crimean War of 1853–1855, six Russian ships of the line and two frigates of the Black Sea Fleet destroyed seven Turkish frigates and three corvettes with explosive shells at the Battle of Sinop in 1853. The battle was widely seen as vindication of the shell gun. John Beeler agrees, stating that "the effects of explosive shell, supposedly the death-knell of the wooden warship, have been considerably overrated by most naval historians."}} Nevertheless, wooden-hulled ships stood up comparatively well to shells, as shown in the 1866 Battle of Lissa, where the modern Austrian steam ship of the line ranged across a confused battlefield, rammed an Italian ironclad and took 80 hits from Italian ironclads, many of which were shells, but including at least one shot at point-blank range. Despite losing her bowsprit and her foremast, and being set on fire, she was ready for action again the very next day. Ironclads
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As amply demonstrated at the Battle of Sinope, and again during the Anglo-French blockade of Sevastopol from 1854–1855, wooden ships had become vulnerable to shell-firing guns. This prompted the French emperor Napoleon III to order the first ironclad warships: the s. Three of these ships led the Anglo-French attack on the Russian fortress on the Kinburn Peninsula in the Battle of Kinburn in 1855, where they bore the brunt of Russian artillery fire, but were not seriously damaged. The success of these ships prompted the French and British to order several similar vessels.
In March 1858, the French took development of the ironclad to its next logical step: a proper, ocean-going armored warship. This vessel, another design by Dupuy de Lome, was , and after her launching in 1859, Napoleon III ordered another five similar ships, which sparked a naval arms race with Britain. The first French ironclads had the profile of a ship of the line, cut to one deck due to weight considerations. Although made of wood and reliant on sail for most journeys, Gloire and her contemporaries were fitted with screw propellers, and their wooden hulls were protected by a layer of thick iron armor. Britain responded promptly with , a similar but much larger ironclad with an iron hull. By the time Warrior was completed in 1861, another nine ironclads were under construction in British shipyards, some of which were conversions of screw ships of the line that were already being built.
During the Unification of Italy in 1860, the Kingdom of Sardinia entered the ironclad building race by ordering the s from French shipyards; their long-term rival across the Adriatic Sea, the Austrian Empire, quickly responded later that year with the two s. Spain and Russia ordered ironclads in 1861, as did the United States and rebel Confederate States of America after the start of the American Civil War. Construction of these large and expensive warships remained controversial until March 1862, when news of the Battle of Hampton Roads, fought between the Union and the Confederate , firmly settled debate in favor of even larger construction programs.
From the 1860s to 1880s, navies experimented with the positioning of guns, in turrets, central-batteries, or barbettes; ironclads of the period also prominently used the ram as a principal weapon. As steam technology developed, masts were gradually removed from battleship designs. The British Chief Constructor, Edward Reed, produced the s in 1869. These were mastless turret ships, which adopted twin-screw propulsion and an arrangement of two pairs of guns, one fore and one aft of the superstructre, that prefigured the advent of the pre-dreadnought battleship some two decades later. By the mid-1870s steel was used as a construction material alongside iron and wood. The French Navy's , laid down in 1873 and launched in 1876, was a combination central battery and barbette ship, which became the first capital ship in the world to use steel as the principal building material.
The rapid pace of technological developments, particularly in terms of gun capabilities and thickness of armor to combat them, quickly rendered ships obsolescent. In the continuous attempt by gun manufacturers to keep ahead of developments in armor plate, larger and larger guns were fitted to many of the later ironclads. Some of these, such as the British , carried guns as large as in diameter, while the Italian s were armed with colossal guns. The French experimented with very large guns in the 1870s, but after significant trouble with these guns (and the development of slower-burning gunpowder), they led the way toward smaller-caliber guns with longer barrels, which had higher muzzle velocity and thus greater penetration than the larger guns.
Jeune École
In the 1880s, opposition to fleets of large, expensive ironclads arose around the world, but most notably in France, where a group of naval officers led by Admiral Théophile Aube formed the (Young School). The theory, which held as one of its core tenets that small, cheap torpedo boats could easily defeat ironclads, was based on combat experience during the Russo-Turkish War of 1877–1878. The doctrine also posited that modern steel-hulled cruisers could defeat a more powerful navy by attacking the country's merchant shipping, rather than engage in a direct battle. The concept proved to be highly influential for several years, shaping the construction programs of France, Germany, Italy, and Austria-Hungary, among others throughout the world.Development of the modern battleship Pre-dreadnought battleships
In 1889, the British government passed the Naval Defence Act 1889, which embarked on a major naval construction program aimed at establishing the so-called two-power standard, whereby the Royal Navy would be stronger than the next two largest navies combined. The plan saw the construction of the eight s, which have been regarded as the first class of battleship that would retrospectively be referred to as "pre-dreadnought battleships". These large battleships incorporated a number of major improvements over earlier vessels like the Devastations, including a high freeboard for true ocean-going capability, more extensive armor protection, heavier secondary battery guns, and greater speed. The ships were armed with four guns in two twin mounts, fore and aft, which established the pattern for subsequent battleships..}} After building a trio of smaller second class battleships intended for the colonial empire, Britain followed with the nine-strong s in 1893–1895, which improved on the basic Royal Sovereign design. These ships adopted the gun, which would become the standard for all subsequent British pre-dreadnoughts.
Foreign navies quickly began pre-dreadnoughts of their own; France began in 1889 and Germany laid down four s in 1890. The United States Navy laid down three s in 1891, the same year work began on the Russian battleship . Japan ordered the two s from British yards, to an improved Royal Sovereign design, in 1894. The Austro-Hungarian Navy eventually ordered its own pre-dreadnoughts, beginning with the in 1899. All of these ships carried guns of between , save the Austro-Hungarian vessels, which, being significantly smaller than the rest, only carried guns.
Most pre-dreadnoughts followed the same general pattern, which typically saw a ship armed with four large guns, usually 12-inch weapons, along with a secondary of medium-caliber guns (usually guns early in the period), which were also intended for combat at close range with other battleships. They also generally carried a light armament for defense against torpedo boats and other light craft. Some ships varied from this general pattern, such as the American Indianas, which carried a heavier secondary battery of guns, and the German Brandenburgs, which had six 11-inch guns for instead of the usual four heavy guns. Many of the early French pre-dreadnoughts, such as , carried a mixed heavy armament of two 12-inch and two guns.
Pre-dreadnoughts continued the technical innovations of the ironclad throughout the 1890s and early 1900s. Compound armor gave way to much stronger Harvey armor developed in the United States in 1890, which was in turn superseded by the German Krupp armor in 1894. As armor became stronger, it could be reduced in thickness considerably, which saved weight that could be allocated to other aspects of the ship design, and generally permitted larger and more capable battleships. At the same time, the advent of smokeless powder continued the trend begun in the French navy of comparatively smaller guns firing at higher velocities. Early on in the pre-dreadnought era, most navies standardized on the 12-inch gun; only Germany remained the significant outlier, relying on 11-inch and even 9.4-inch guns for its pre-dreadnoughts. Similarly, later in the pre-dreadnought era, the secondary batteries grew in caliber, usually to guns. Some final classes, such as the British with a secondary battery of guns, or the French that had 9.4-inch secondaries, have been subsequently referred to as "semi-dreadnoughts", reflecting their transitional step between classic pre-dreadnought designs and the all-big-gun battleships that would soon appear.
In the last years of the 19th century and the first years of the 20th, the escalation in the building of battleships became an arms race between Britain and Germany. The German naval laws of 1890 and 1898 authorized a fleet of 38 battleships, a vital threat to the balance of naval power. Britain answered with further shipbuilding, but by the end of the pre-dreadnought era, British supremacy at sea had markedly weakened. In 1883, the United Kingdom had 38 ironclad battleships, twice as many as France and almost as many as the rest of the world put together. In 1897, Britain's lead was far smaller due to competition from France, Germany, and Russia, as well as the development of pre-dreadnought fleets in Italy, the United States and Japan. The Ottoman Empire, Spain, Sweden, Denmark, Norway, the Netherlands, Chile, and Brazil all had second-rate fleets led by armored cruisers, coastal defence ships or monitors.Early combat experiences
, 1905]]
Pre-dreadnought battleships received their first test in combat in the Spanish-American War in 1898 at the Battle of Santiago de Cuba. An American squadron that included four pre-dreadnoughts had blockaded a Spanish squadron of four armored cruisers in Santiago de Cuba until 3 July, when the Spanish ships attempted to break through and escape. All four cruisers were destroyed in the ensuing engagement, as were a pair of Spanish destroyers, and American ships received little damage in return. The battle seemed to indicate that the mixed batteries of pre-dreadnought battleships were very effective, as the medium-caliber guns had inflicted most of the damage (which reinforced the observations of the Battle of Manila Bay, where only cruisers armed with medium guns had been present). It also led navies around the world to begin working on better solutions for rangefinding in the hope of improving gunnery at longer ranges.
Conflicting colonial ambitions in Korea and Manchuria led Russia and Japan to the next major use of pre-dreadnoughts in combat. During the Russo-Japanese War of 1904–1905, squadrons of battleships engaged in a number of battles, including the Battle of the Yellow Sea and the Battle of Tsushima. Naval mines also proved to be a deadly threat to battleships on both sides, sinking the Russian in March 1904 and the Japanese battleships and on the same day in May. The action in the Yellow Sea began during a Russian attempt to break out of Port Arthur, which the Japanese under Admiral Tōgō Heihachirō had blockaded. The Russians outmaneuvered the Japanese and briefly escaped, but the latter's superior speed allowed them to catch up. A 12-inch shell struck the Russian flagship, killing the squadron commander and causing the Russian ships to fall into disarray and retreat back to Port Arthur. With night falling, the Japanese broke off and reimposed the blockade. At Tsushima, Togo outmaneuvered the Russian Second Pacific Squadron that had been sent to reinforce the Pacific Fleet, and the Japanese battleships quickly inflicted fatal damage with long-range fire from their 12-inch guns.
In both actions during the Russo-Japanese War, the fleets engaged at longer range (as far as at the Yellow Sea), where only their 12-inch guns were effective. Only in the final stages of the battle at Tsushima, by which time the Russian fleet had been severely damaged and most of its modern battleships sunk or disabled, did the Japanese fleet close to effective range of their secondary guns, fighting as close as . The actions, particularly the decisive engagement at Tsushima, demonstrated that the lessons taken from the Spanish-American War were incorrect, and that the large-caliber gun should be the only offensive weapon carried by battleships. Dreadnought battleships
In the early 1900s, some naval theorists had begun to argue for future battleships to discard the heavy secondary batteries and instead carry only big guns. The first prominent example was Vittorio Cuniberti, the chief engineer of the Italian (Royal Navy); he published an article in 1903 titled "An Ideal Battleship for the British Navy" in ''Jane's Fighting Ships. By the time that British Admiral Sir John ("Jackie") Fisher became the First Sea Lord in late 1904, he had already become convinced that a similar concept—that of a fast capital ship carrying the largest quick-firing guns available (which at that time were weapons)—was the path forward. The Japanese Navy was the first to actually order any of these new ships, beginning with the two s in 1904, though due to shortages of 12-inch guns, they were completed with a mix of 12- and guns. By early 1905, Fisher had converted to the 12-inch gun for his proposed new capital ships, and in March that year, the German Navy had decided to build an all-big-gun battleship for the planned . The American was authorized in 1905, but work did not begin until December 1906.
1912]]
Though several navies had begun design work on all-big-gun battleships, the first to be completed was the British , which had been ordered by Fisher. He actually preferred a very large armored cruiser equipped with an all-big-gun armament, which would come to be known as the battlecruiser, and he only included Dreadnought'' in his 1905 construction program to appease naval officers who favored continued battleship building. Fisher believed that Britain's security against the French and Russian threats would be better guaranteed by squadrons of fast battlecruisers, three of which were laid down in 1906. Regardless of Fisher's intentions, the rapidly changing strategic calculus invalidated his plans and ensured that when the 1906–1907 program was being debated, Germany would be Britain's primary rival, the Royal Navy chose to build three more dreadnoughts instead of further battlecruisers. Reactions from the other naval powers was immediate; very few pre-dreadnoughts were built afterward, and in the first seven years of the ensuing arms race, all of the major naval powers either had their own dreadnoughts in service or nearing completion. Of these competitions, the Anglo-German race was the most significant, though others took place, such as the South American contest. Even naval powers of the second and third rank, such as Spain; Brazil, Chile, and Argentina in South America; and Greece and the Ottoman Empire in the Mediterranean had begun dreadnought programs, either domestically or ordering abroad.
Dreadnought carried ten 12-inch guns, all in twin turrets: one was forward, two further aft, all on the centerline, and the remaining pair were wing turrets with more restricted arcs of fire. She disposed of the medium-caliber secondary battery and carried only guns for anti-torpedo boat work. A variety of experimental arrangements followed, including the "hexagonal" layout adopted by the German Nassaus (which had four of their six twin turrets on the "wings"), or the Italian and Russian s that mounted their guns all on the centerline, but with restricted arcs of fire for half of the guns. The South Carolinas dispensed with Dreadnoughts wing turrets, adopting instead a superfiring arrangement of eight guns in four twin turrets, which gave them the same broadside as Dreadnought, despite having two fewer guns.
Technological development continued over the decade that followed Dreadnoughts launch. Already by 1910, the British had begun the first of the so-called "super-dreadnoughts" that carried significantly more powerful guns, all on the centerline. The United States followed suit in 1911, though increasing the caliber of their guns to . France adopted a gun for its s, laid down in 1912. That year, Japan laid down the first of its s, also armed with a 14-inch main battery. The Germans waited until 1913, but skipped directly to guns. By this time, Britain had led the way to the 15-inch gun with the begun in late 1912. But more importantly than the increase of caliber, these were the first completely oil-fired battleships these were the first fast battleships. At around the same time, the United States introduced the next major innovation in battleship design: the all or nothing armor system in the laid down in 1912. The heaviest possible armor was used to protect the ship's propulsion machinery and ammunition magazines, but intermediate protection was stripped away from non-essential areas, since this mid-weight armor only served to detonate armor-piercing shells. World War I
By the start of World War I in July 1914, the Royal Navy's Grand Fleet outnumbered the German High Seas Fleet by 21 to 13 in numbers of dreadnought battleships and 4 to 3 in battlecruisers. And over the course of the war, Britain would add another 14 dreadnoughts, while Germany completed another 6. seemingly referring to the two s completed in 1916, but omitting the four s that entered service in the first months of the war.}} German strategy presumed that Britain would launch an immediate offensive into the southern North Sea, but the British preferred to establish a distant blockade, which very quickly stopped German maritime trade. Both sides were aware that, because of the greater number of British dreadnoughts, a full fleet engagement would be likely to result in a British victory. The German strategy was therefore to try to provoke an engagement on their terms: either to induce a part of the Grand Fleet to enter battle alone, or to fight a pitched battle near the German coastline, where friendly minefields, torpedo-boats and submarines could be used to even the odds. The British fleet commander, Admiral John Jellicoe, refused to be drawn into unfavorable conditions and enforced the blockade at the English Channel and between Scotland and Norway.
In the Baltic Sea, Germany found itself in the reverse situation, in an even more lopsided fashion versus its Russian opponent. The Russian Baltic Fleet had only four dreadnoughts at the start of the war, so they adopted a purely defensive approach to guard the capital at Petrograd and the northern flank of the Russian army units fighting on the Eastern Front. In the Mediterranean Sea, Italy initially remained neutral, despite being a member of the Triple Alliance with Germany and Austria-Hungary, leaving the latter to face the French Navy and British Mediterranean Fleet alone. After ensuring the French army units in French North Africa were safely convoyed to France, the French fleet sailed to the Adriatic Sea to blockade the Austro-Hungarian fleet, which refused to leave their fortified bases. The French, like the other major European naval commanders, had failed to consider that their opponents would not concede to engaging in battle on terms unfavorable to them. The Adriatic quickly turned into another stalemate as the threat of Austro-Hungarian mines and submarines prevented a more aggressive employment of the French fleet.
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The Germans embarked on a number of sweeps into the North Sea and raids on British coastal towns to draw out part of the Grand Fleet, which would be isolated and destroyed. These included the raid on Scarborough, Hartlepool and Whitby, where the Germans nearly caught an isolated British battle squadron, but turned away, thinking that it was the entire Grand Fleet. This strategy ultimately led to the Battle of Jutland on 31 May – 1 June 1916, the largest clash of battleship fleets. The first stage of the battle was fought largely by the two sides' battlecruiser squadrons, though the British were supported by four of the Queen Elizabeth-class battleships. After both battleship fleets engaged, the British crossed the Germans' "T" twice, but the latter managed to extricate themselves from the action as darkness fell. Early on 1 June, the High Seas Fleet had reached port. In the course of the fighting, three British battlecruisers were destroyed, as was one German battlecruiser and the old pre-dreadnought . Numerous cruisers and destroyers were lost on both sides as well.
The Germans made two further offensive operations in the months after Jutland. The first, which led to the inconclusive action of 19 August, saw one German battleship torpedoed by a British submarine and two British cruisers sunk by German U-boats. This incident convinced the British that the risks posed by submarines were too great to send the Grand Fleet into the southern North Sea, barring exceptional circumstances like a German invasion of Britain. In the second German operation, which took place on 18–19 October, a German cruiser was damaged by a submarine and the Grand Fleet remained in port. By this time, the Germans were similarly convinced of the futility of their attempts to isolate part of the British fleet, and discontinued such raids. They instead turned to unrestricted submarine warfare, which resulted in their battleships being reduced to a supporting force that guarded the U-boat bases.
In the Baltic, the Germans made two attempts to capture the islands in the Gulf of Riga. The first came in August 1915, and in the ensuing Battle of the Gulf of Riga, a pair of German dreadnoughts engaged in an artillery duel at long range with the Russian pre-dreadnought guarding the minefields that protected the gulf. The Germans were drove off the Russian ship, cleared the minefield, but by the time they entered the gulf, submarines had reportedly arrived. Unwilling to risk the battleships in the shallow, confined waters of the gulf, the Germans retreated. The second attempt—Operation Albion—took place in October 1917. During the Battle of Moon Sound, another pair of German dreadnoughts damaged Slava so badly that she had to be scuttled, and the Germans completed their amphibious assault on the islands.
The modern units of the French and British fleets in the Mediterranean spent much of the war guarding the entrance to the Adriatic, first based at Malta and later moving to Corfu. They saw very little action through the war. In May 1915, Italy entered the war on the side of the Triple Entente, declaring war on their former allies; the Austro-Hungarians, who were prepared for the betrayal, sailed with the bulk of their fleet to raid the Italian coast on the first hours of the war on 24 May; the battleships were sent to bombard Ancona, but there were no heavy Italian or French units close enough to intervene. For their part, the Italians were content to reinforce the blockading force guarding the Adriatic, as they, too, were unwilling to risk their capital ships in the mine and submarine infested waters of the Austrian Littoral. Instead, light forces carried out most of the operations. Meanwhile, several French and British pre-dreadnoughts were sent to attack the Ottoman defenses guarding the Dardanelles. In the ensuing naval operations from February to March 1915, several battleships were sunk or damaged by mines and torpedoes. When the fleets failed to break through the defenses, the British and French decided to land at Gallipoli to try to take the fortifications by land; the remaining battleships were thereafter used to provide naval gunfire support. This, too, ultimately failed and by January 1916, the British and French withdrew their troops.
motor boats]]
Russian battleships saw more action in the Black Sea against their Ottoman opponents. The Ottomans had the battlecruiser Yavuz Sultan Selim (formerly the German Goeben), which the Russians attempted to destroy in a series of short engagements, including the Battle of Cape Sarych in November 1914, the Action of 10 May 1915, and the Action of 8 January 1916, though they were unsuccessful in all three attempts, primarily because the faster Yavuz Sultan Selim could easily escape from the more numerous but slow Russian pre-dreadnoughts. By 1916, the Russians had completed a pair of dreadnoughts in the Black Sea, which severely curtailed Ottoman freedom of maneuver.
In the course of the war, older pre-dreadnoughts proved to be highly vulnerable to underwater damage, whether by naval mine or ship-launched or submarine-delivered torpedoes. was sunk by a German U-boat in the English Channel in 1915. At the Dardanelles, was sunk by a German U-boat, was sunk by the Ottoman destroyer . The British and and the French were all sunk by mines. and were both sunk by mines in the Mediterranean in 1916 and 1917, respectively. was similarly mined and sunk off the British coast in 1916, and was sunk by a U-boat in the final days of the war. The French were sunk by U-boats in 1916, and was torpedoed and sunk by a U-boat in 1917 At Jutland, the only battleship lost was the old pre-dreadnought Pommern, which was torpedoed by a destroyer.
In contrast, dreadnoughts proved to be much more resilient to underwater attack. was damaged by a torpedo at Jutland, but nevertheless returned to port. The German was torpedoed at the action of 19 August 1916, and and were torpedoed by the same submarine in November 1917; all three survived. was mined during Operation Albion and remained in action against Russian artillery batteries for some time thereafter. Dreadnoughts lost to underwater attack were rare. was sunk by a mine in October 1914, the Austro-Hungarian was sunk by Italian MAS boats in June 1918, and five months later, Italian frogmen sank using a powerful limpet mine.
Inter-war period
In the immediate aftermath of the war, the most modern units of the German fleet was interned at Scapa Flow, where in June 1919, their crews scuttled the fleet to avoid it being handed over to the Allies. The remaining dreadnoughts still in German ports were therefore seized as compensation for the scuttled ships. The postwar of Weimar Germany was limited to a contingent of eight old pre-dreadnoughts (of which two would be kept in reserve) under the terms of the Treaty of Versailles; new battleships were subject to severe restrictions on size and armament. The surviving battleships of Austria-Hungary, the other defeated Central Power, were soon distributed among the Allies, to be broken up.
While the other major naval powers remained free to build new battleships, most of them were financially crippled after the war. The prospect of a renewed naval arms race between the United States, United Kingdom, and Japan, appealed to few politicians in the three countries, and so they concluded the Washington Naval Treaty in 1922, which also included Italy and France. The treaty limited the number and size of battleships, and imposed a ten-year building holiday, along with other provisions. The treaty also imposed a ratio of 5:5:3 on total displacement of battleships for the US, UK, and Japan, respectively, and it severed the Anglo-Japanese Alliance. The only exceptions to the building holiday were for the two British s, which were permitted to give Britain parity with the latest American and Japanese battleships, which were all armed with guns.
The Washington treaty was followed by a series of other naval treaties, including the First London Naval Treaty (1930) and the Second London Naval Treaty (1936), which both set additional limits on major warships. The treaty limitations meant that fewer new battleships were launched in 1919–1939 than in 1905–1914. The treaties also inhibited development by imposing upper limits on the weights of ships. Designs like the projected British , the first American , and the Japanese —all of which continued the trend to larger ships with bigger guns and thicker armor—never got off the drawing board. Those designs which were commissioned during this period were referred to as treaty battleships. The collapse of the treaty system began during the negotiations for the Second London Treaty, where Japan demanded parity with Britain and the US, which the latter two flatly rejected. Japan withdrew from the treaty system in 1936, though the agreements remained in effect until January 1937. Rise of air power As early as 1914, the British Admiral Percy Scott predicted that battleships would soon be made irrelevant by aircraft. Between 1916 and 1918, US Admiral William Fullam published a series of papers stating that aircraft would become an independent strike arm of the fleet, and argued that the s then under construction should be converted to aircraft carriers than scrapped. By the end of World War I, aircraft had successfully adopted the torpedo as a weapon. In 1921 the Italian general and air theorist Giulio Douhet completed a hugely influential treatise on strategic bombing titled The Command of the Air, which foresaw the dominance of air power over conventional military and naval forces.
In 1921, US General Billy Mitchell used the ex-German dreadnought in a series of bombing tests conducted by the Navy and Army. The test involved a series of attacks on the stationary, unmanned ships using low-level, land-based bombers dropping bombs that ranged from . Ostfriesland was sunk by the heaviest bombs, though Mitchell broke the rules of the tests and the subsequent report concluded that had the ship been crewed, underway, and firing back at the aircraft, damage control teams aboard Ostfriesland could have managed any damage inflicted. Mitchell and his supporters nevertheless embarked on a public campaign that falsely claimed that Ostfriesland was a super-battleship, and the quick sinking proved that battleships were obsolete. Mitchell would eventually be subjected to a court martial, convicted, and discharged from the Army over his insubordinate tactics.
Naval aviation traces its origin back to the first decade of the 20th century, though early efforts were based on using aircraft to scout for the fleet and help direct gunfire at long range. A number of experimental aircraft carriers were employed during World War I, primarily by the Royal Navy, all converted from merchant vessels or existing warships. The US Navy completed its first carrier, , in 1922. But aircraft carriers in the 1920s faced a number of challenges to be overcome: aircraft of the day were short-ranged, which meant the carrier had to be very close to the enemy to be able to launch and then recover a strike, which exposed the carriers to attack. In addition, the available planes had insufficient power to carry meaningful bomb loads. Early naval aviators nevertheless pioneered effective tactics like dive bombing during this period.
Fast battleships and the end of the treaty system
Because the Washington Treaty system precluded the construction of any new battleships until the early 1930s, the major naval powers began a program of modernization for their most effective battleships. Britain conducted a series of refits to their Queen Elizabeth-class battleships through the 1920s, adding anti-torpedo bulges, additional anti-aircraft guns, and aircraft catapults; further refits in the 1930s increased armor protection and further strengthened their anti-aircraft batteries. The s were less heavily modified during the period. The US , , and es received similar treatments in the 1920s, while the Nevada| and es received new turbines, additional armor, and more anti-aircraft guns. The Japanese similarly updated their Fusō, , and s, and rebuilt three of the four s into fast battleships, albeit with significantly inferior protection compared to the other ships. They all also received distinctive pagoda masts. was initially disarmed to serve as a training ship under the terms of the Washington Treaty, but was remilitarized in the late 1930s. In the 1930s, all four classes were lengthened and had their propulsion systems improved to increase their speeds.
The French and Italian navies were exempted from the 10-year building holiday, owing to the comparative obsolescence of their battleships; they were permitted to build worth of battleships. But the weak economies of both countries led both to defer new construction until Germany began building the of heavily armed cruiser at the end of the 1920s. This prompted the French to build the of small, fast battleships armed with guns, which led to a short arms race in Europe in the mid-1930s. The Italians responded with the significantly larger and more powerful , armed with 15-inch guns. The French, in turn, began the s to counter the Littorios. By this time, Nazi Germany had signed the Anglo-German Naval Agreement in 1935, which removed the restrictions imposed by Versailles and pegged German naval strength to 35% of British tonnage. This permitted the construction of two s, which were also a response to the Dunkerques. The advent of the Richelieus prompted the Germans to build the two s late in the decade. The Germans thereafter embarked on the ambitious Plan Z naval construction program, which included a total of eight battleships, of which the Bismarck''s would be the first two.
Against the backdrop of European rearmament in the mid-1930s, Britain began planning its first battleship class in a decade: the . These were armed with 14-inch guns intended to comply with the terms of the Second London Naval Conference, and they were laid down in 1937. The United States began their at the same time, and though they were intended to be armed with 14-inch guns, Japan's refusal to agree to the Second London Treaty led the US to invoke a clause of the treaty that allowed an increase to 16-inch guns. In 1939, these were followed by the four s, and in 1940 by the first of four s. For its part, Japan had decided to embark on a program of four very large s, armed with guns, as early as 1934, though work did not begin on the first ship until late 1937.
World War II
European theater
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The German pre-dreadnought fired the first shots of World War II by initiating the bombardment of the Polish garrison at Westerplatte in the early hours on 1 August 1939. The German Scharnhorst-class battleships caught the British carrier off the coast of Norway and sank her during the Norwegian campaign. Following the collapse of France in June 1940 and subsequent surrender, the British embarked on a campaign to neutralize or destroy British battleships that might be seized to reinforce the German fleet, including the attack on Mers-el-Kébir and the Battle of Dakar in July and September, respectively. In the former action, the British sank a pair of older Bretagne-class battleships and the fast battleship , though the latter was refloated and repaired. At Dakar, the French battleship and other forces fended off the British task force, which resulted in the torpedoing of the battleship , which was severely damaged.
Italy entered the war in June 1940, shortly before the French defeat. In November, the British launched a nighttime airstrike on the naval base at Taranto; in the Battle of Taranto, Fairey Swordfish torpedo bombers disabled three Italian battleships, though they were subsequently repaired. Over the next year, Italian and British battleships engaged in a number of inconclusive actions as they contested the supply lines to North Africa. These included the Battle of Cape Spartivento in November 1940 and the Battle of Cape Matapan in March 1941. At Matapan, the battleship was badly damaged by a Swordfish, though the ship returned to port. The British battleships , , and nevertheless caught a group of three heavy cruisers that evening and destroyed them in a furious, close-range night action. Convoy battles continued through 1941 and into 1942, with actions such as First and Second Sirte. By 1943, Italian operations were sharply reduced due to a shortage of fuel, and after the Allied invasion of Italy, the country surrendered, allowing most of its fleet to be interned at Malta. While on the way, the battleship was sunk by a German Fritz X guided glide bomb.
In the meantime, in January 1941, the Germans began to send their few battleships on commerce raiding operations in the Atlantic, starting with the two Scharnhorst-class ships in Operation Berlin, which was not particularly successful. followed with Operation Rheinübung in May, which resulted in two actions, the Battle of the Denmark Strait and the sinking of Bismarck. During the operation, Bismarck was crippled by Swordfish torpedo bombers, which allowed a pair of British battleships to catch and destroy her. By 1942, the last operational German battleships— and —were sent to occupied Norway to serve as a fleet in being to tie down British naval resources and to attack supply convoys to the Soviet Union. The battleship eventually sank Scharnhorst at the Battle of North Cape in December 1943, and Tirpitz was destroyed by British heavy bombers in 1944.Pacific theaterOn 7 December 1941, the Japanese launched a surprise attack on the US naval base at Pearl Harbor. Over the course of two waves of dive-, level- and torpedo bombers, the Japanese sank or destroyed five battleships and inflicted serious damage to the facilities there. Three days later, land-based Japanese aircraft operating out of French Indochina, then occupied by Japan, caught and sank the British battleship and the battlecruiser off the coast of British Malaya. Though the Taranto and Pearl Harbor strikes were significant steps toward aircraft replacing the battleship as the primary naval striking arm, the sinking of Prince of Wales and Repulse marked the first time aircraft had sunk capital ships that were maneuvering and returning fire.}}
Employment of battleships during the Pacific War was limited by a number of factors. Japanese strategic doctrine, the , envisioned a decisive clash of battleships at the end of the war, and so kept most of their battleships in home waters, and only the four Kongōs were routinely detached to escort the aircraft carriers of the . For their part, the US kept its surviving pre-war battleships out of action primarily because they were too slow to keep up with the carriers. Later in the war, they were employed as coastal bombardment vessels. Nevertheless, American and Japanese battleships saw significant action during the Guadalcanal campaign in 1942, most notably at the Naval Battle of Guadalcanal in November. There, an American squadron centered on the battleships and intercepted and sank the battleship , though South Dakota received significant damage in return. As more and more of the American fast battleships entered service from 1942, onward, they were frequently used as escorts for the fast carrier task force that was the US Navy's primary striking arm in its campaign across the central Pacific.
During the Philippines campaign, battleships played a central role during the Battle of Leyte Gulf in October 1944. The action was one of the largest naval battles in history, which took place over several days and as three Japanese fleets attacked the Allied invasion fleet. The Japanese battleship , part of Center Force, was sunk by American carrier aircraft during the Battle of Sibuyan Sea on 24 October. During the Battle of Surigao Strait the following night, several US battleships that had been repaired from the attack on Pearl Harbor defeated the Japanese Southern Force that included a pair of battleships. Center Force attacked again on 25 October and in the Battle off Samar, but was driven off by destroyers and aircraft from several escort carriers. During the Battle of Okinawa in April 1945, Japan sent Yamato as a final suicide mission to attack the landing beaches and attempt to stop the invasion of the island. American aircraft scored between nine and thirteen torpedo hits and six bomb hits on the ship and sank her. was sunk by US aircraft off Kure, Japan, in July. Only survived the war. The war ended with the Japanese surrender aboard the battleship in September 1945. Cold War: end of the battleship era
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After World War II, several navies retained their existing battleships, but most were either placed in their reserve fleets or scrapped outright. Of their surviving pre-war battleships, most of the American vessels were either scrapped or sunk as target ships by 1948, though the most modern vessels, those of the and es, survived until the late 1950s and early 1960s. One of the earlier vessels, , was preserved as a museum ship. The four King George V-class ships were all broken up by 1957, Only two battleships—the British and the French —were completed after the war. Vanguard did not long outlast the King George Vs, being scrapped herself in 1960. Jean Bart (and her sister Richelieu) remained in the French fleet's inventory until the early 1960s, when they were discarded. Three of the six American North Carolina- and South Dakota-class ships were similarly scrapped in the early 1960s, but the other three—, , and —were retained as museum ships. With the reduced naval budgets of the immediate postwar period, the US Navy chose to concentrate its resources on its carrier force. Besides the rise of aircraft carriers as the preeminent naval striking force, the advent of nuclear weapons influenced the decision to abandon large battleship fleets. In 1946, Nagato, which was seized by the US, and four American battleships were used during the Operation Crossroads nuclear weapons tests, though three of the American ships survived the two blasts and were later sunk with conventional weapons.
Of the remaining, smaller battleships fleets, Italy retained its two s, of 1913 vintage, until the late 1950s and early 1960s, when they were scrapped. One other battleship, was taken by the Soviets as reparations and renamed Novorossiysk; she was sunk by a mine in the Black Sea on 29 October 1955. The two surviving Littorio-class ships were taken by the US and UK as war reparations and scrapped in the late 1940s. The Soviets still had a pair of World War I-era battleships— and —, but they, too, were scrapped in the late 1950s. The three large South American navies still had a handful of pre-World War I dreadnoughts in service after the war. Brazil eventually discarded its two s in the early 1950s; Argentina sold its two s in 1956; the last ship in the region, the Chilean , followed them to the breakers' yard in 1959.
The four Iowa-class battleships were the only vessels of the type to see significant combat after World War II. All four ships were reactivated for gunfire support duties during the Korean War in the early 1950s, and was also deployed during the Vietnam War in 1968–1969 for the same task. All four ships were modernized in the early 1980s with Tomahawk cruise missiles, Harpoon anti-ship missiles, and Phalanx CIWS systems, along with the latest radar systems. They were recommissioned as part of the 600-ship Navy program under President Ronald Reagan. New Jersey next saw action in 1982, bombarding Syrian artillery during the Lebanese Civil War. Missouri and took part in Operation Desert Storm against Iraqi forces in 1991, bombarding enemy positions along the coast. The ships proved to be expensive to operate, and they required thousands of men to keep in service, so Iowa and New Jersey were already back in reserve by that time, and Missouri and Wisconsin were also decommissioned by the end of 1991. All four were struck from the Naval Vessel Register in 1995.
When the last Iowa-class ship was finally stricken from the Naval Vessel Registry, no battleships remained in service or in reserve with any navy worldwide. A number are preserved as museum ships, either afloat or in drydock. The U.S. has eight battleships on display: Massachusetts, North Carolina, Alabama, Iowa, New Jersey, Missouri, Wisconsin, and Texas. Missouri and New Jersey are museums at Pearl Harbor and Camden, New Jersey, respectively. Iowa is on display as an educational attraction at the Los Angeles Waterfront in San Pedro, California. Wisconsin now serves as a museum ship in Norfolk, Virginia. Massachusetts, which has the distinction of never having lost a man during service, is on display at the Battleship Cove naval museum in Fall River, Massachusetts. Texas, the first battleship turned into a museum, is normally on display at the San Jacinto Battleground State Historic Site, near Houston, but as of 2021 is closed for repairs. North Carolina is on display in Wilmington, North Carolina. Alabama is on display in Mobile, Alabama. The USS Arizona Memorial was erected over the wreck of , which was sunk during the Pearl Harbor attack in 1941, to commemorate those killed in the raid. Memorials were also placed to mark the wreck of , also sunk during the attack. The only other 20th-century battleship on display is the Japanese pre-dreadnought , preserved since 1923. Strategy and doctrine Doctrine For much of their existence, battleships were the embodiment of sea power. The American naval officer Alfred Thayer Mahan argued in his seminal 1890 work, The Influence of Sea Power upon History, a strong navy was vital to the success of a nation, and control of the seas was a prerequisite for the projection of force. Conversely, countries with weak navies would inevitably decline. Mahan argued that the cruiser warfare advocated by the Jeune Ecole could never be decisive, and that only fleets of battleships could control sea lanes and enforce blockades of an enemy's coast. The book proved to be widely influential across the world's navies; it was translated into German in 1896, where it was used to support the German naval expansion program championed by Alfred von Tirpitz. A Japanese-language translation also appeared in 1896, and it soon became required reading at the Japanese naval academy. By the end of the decade, Russian, French, Italian, and Spanish versions were produced.
A competing doctrine, that of the "fleet in being" dates at least as far back as the 17th century Royal Navy; its commander, Lord Torrington, argued that his fleet, though significantly outnumbered by the French navy of the day, posed enough of a risk as to dissuade a French attempt to invade England. The "fleet in being" in part acts as a deterrent against attack. The concept underpinned Tirpitz's so-called "risk theory" that was the basis of his program to build a German battle fleet. Even if the Royal Navy maintained a numerical superiority, the risk that the German fleet would inflict grievous damage even in the case of a British victory would militate against any such battle taking place, and Germany would be free to pursue its global ambitions. Tactics
steaming in line ahead]]
By the 1890s, naval tacticians had developed a number of formations in which to employ battleships. The most prominent were referred to as "line ahead" and "line abreast". The former, the standard tactic during the age of sail, arrayed ships in a single-file line, which emphasized broadside fire. The latter placed ships side-by-side, which was suited to close-range melees where ramming and torpedoes could be effectively employed; after Tegetthoff's success at Lissa in 1866 used a modified line abreast formation, the tactic enjoyed a period of popularity for several years. By the 1880s, line-ahead tactics had returned to prominence. Royal Navy officers devised the tactic referred to as "crossing the T" of an enemy fleet, whereby one fleet steaming in line-ahead formation crossed in front of another line of battleships. This maneuver would allow one's own battleships to concentrate entire broadsides on the leading enemy ship, while one's opponent could only reply with their forward guns. Many navies adopted the tactic soon thereafter.
As the threat of underwater attack, including mines and torpedoes, developed after the 1860s, capital ships could no longer maintain close blockades of enemy ports. This required smaller, faster scouts to observe hostile ports so that an enemy fleet could be brought to battle. Modern cruisers began to be built in the 1880s for this purpose. Almost immediately after the invention of the airplane, navies recognized its potential as a reconnaissance unit for the fleet's battleships.
The Austro-Hungarian Navy, then following the Jeune École doctrine of the 1870s and 1880s, devised the tactic of placing torpedo boats alongside battleships; these would hide behind the larger ships until gun-smoke obscured visibility enough for them to dart out and fire their torpedoes. While this tactic was made less effective by the development of smokeless propellant, the threat from more capable torpedo craft (later including submarines) remained. By the 1890s, the Royal Navy had developed the first destroyers, which were initially designed to intercept and drive off any attacking torpedo boats. The other major naval powers quickly followed suit with similar vessels of their own. Psychological and diplomatic impact The presence of battleships had a great psychological and diplomatic impact. Similar to possessing nuclear weapons in the second half of the 20th century, the ownership of battleships marked a country as a regional or global power, and the ability to build them domestically signified that a country could claim to be a great power.
Even during the Cold War, the psychological impact of a battleship was significant. In 1946, USS Missouri was dispatched to deliver the remains of the ambassador from Turkey, and her presence in Turkish and Greek waters staved off a possible Soviet thrust into the Balkan region. In September 1983, when Druze militia in Lebanon's Shouf Mountains fired upon U.S. Marine peacekeepers, the arrival of USS New Jersey stopped the firing. Gunfire from New Jersey later killed militia leaders.
Cost-effectiveness
Battleships were the largest and most complex, and hence the most expensive warships of their time; as a result, the value of investment in battleships has always been contested. As the French politician Etienne Lamy wrote in 1879, "The construction of battleships is so costly, their effectiveness so uncertain and of such short duration, that the enterprise of creating an armored fleet seems to leave fruitless the perseverance of a people". The Jeune École school of thought of the 1870s and 1880s sought alternatives to the crippling expense and debatable utility of a conventional battlefleet. It proposed what would nowadays be termed a sea denial strategy, based on fast, long-ranged cruisers for commerce raiding and torpedo boat flotillas to attack enemy ships attempting to blockade French ports. The ideas of the Jeune École were ahead of their time; it was not until the 20th century that efficient mines, torpedoes, submarines, and aircraft were available that allowed similar ideas to be effectively implemented. The determination of powers such as Germany to build battlefleets with which to confront much stronger rivals has been criticized by historians, who emphasize the futility of investment in a battlefleet that has no chance of matching its opponent in an actual battle. Former operators * : lost its entire navy following the collapse of the Empire at the end of World War I.
* : sole surviving battleship TCG Turgut Reis was scrapped in 1956.
* : lost its two surviving s during the Spanish Civil War, both in 1937.
* : lost its two s during the German bombing of Salamis in 1941.
* : scuttled its two surviving s in 1945, during the closing months of World War II.
* : surrendered its sole surviving battleship, , to the United States following World War II.
* : sold its last battleship, , for scrap in 1953.
* : decommissioned its in 1961.
* : scrapped its last in 1959.
* : sold its last battleships, and , in 1956.
* : sold its last battleship, , in 1959.
* : scrapped its last battleship, , in 1960.
* : scrapped its last battleship, , in 1970.
* : decommissioned its last battleship, , in 1991. See also
* List of battleships
* List of sunken battleships
* List of battleships of World War I
* List of battleships of World War II
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* [http://www.combinedfleet.com/baddest.htm Comparison of the capabilities of seven World War II battleships]
* [http://www.chuckhawks.com/super_battleships_projected.htm Comparison of projected post-World War II battleship designs]
* [https://web.archive.org/web/20091027051033/http://geocities.com/batdev Development of U.S. battleships, with timeline graph]
* [http://digitalcollections.lib.washington.edu/cdm/search/collection/transportation/searchterm/battleship/field/all/mode/all/conn/and/order/title/ad/asc Battleships in the Transportation Photographs Collection] – University of Washington Library
Category:Ship types | https://en.wikipedia.org/wiki/Battleship | 2025-04-05T18:26:40.694404 |
4055 | Bifröst | thumb|The god Heimdallr stands before the rainbow bridge while blowing his horn (1905) by Emil Doepler.
In Norse mythology, Bifröst (modern icelandic: Bifröst ; from Old Norse: /ˈbiv.rɔst/), also called Bilröst and often anglicized as Bifrost, is a burning rainbow bridge that reaches between Midgard (Earth) and Asgard, the realm of the gods. The bridge is attested as Bilröst in the Poetic Edda, compiled in the 13th century from earlier traditional sources; as Bifröst in the Prose Edda, written in the 13th century by Snorri Sturluson; and in the poetry of skalds. Both the Poetic Edda and the Prose Edda alternately refer to the bridge as Ásbrú (Old Norse "Æsir's bridge").
According to the Prose Edda, the bridge ends in heaven at Himinbjörg, the residence of the god Heimdall, who guards it from the jötnar. The bridge's destruction during Ragnarök by the forces of Muspell is foretold. Scholars have proposed that the bridge may have originally represented the Milky Way and have noted parallels between the bridge and another bridge in Norse mythology, Gjallarbrú.
Etymology
Scholar Andy Orchard suggests that Bifröst may mean "shimmering path." He notes that the first element of Bilröst—bil (meaning "a moment")—"suggests the fleeting nature of the rainbow," which he connects to the first element of Bifröst—the Old Norse verb bifa (meaning "to shimmer" or "to shake")—noting that the element evokes notions of the "lustrous sheen" of the bridge. Austrian Germanist Rudolf Simek says that Bifröst either means "the swaying road to heaven" (also citing bifa) or, if Bilröst is the original form of the two (which Simek says is likely), "the fleetingly glimpsed rainbow" (possibly connected to bil, perhaps meaning "moment, weak point").
Attestations
Two poems in the Poetic Edda and two books in the Prose Edda provide information about the bridge:
Poetic Edda
thumb|Thor wades through rivers while the rest of the æsir ride across Bifröst (1895) by Lorenz Frølich.
In the Poetic Edda, the bridge is mentioned in the poems Grímnismál and Fáfnismál, where it is referred to as Bilröst. In one of two stanzas in the poem Grímnismál that mentions the bridge, Grímnir (the god Odin in disguise) provides the young Agnarr with cosmological knowledge, including that Bilröst is the best of bridges. Later in Grímnismál, Grímnir notes that Asbrú "burns all with flames" and that, every day, the god Thor wades through the waters of Körmt and Örmt and the two Kerlaugar:
Benjamin Thorpe translation:
Körmt and Ormt, and the Kerlaugs twain:
these Thor must wade
each day, when he to council goes
at Yggdrasil's ash;
for as the As-bridge is all on fire,
the holy waters boil.Henry Adams Bellows translation:
Kormt and Ormt and the Kerlaugs twain
Shall Thor each day wade through,
(When dooms to give he forth shall go
To the ash-tree Yggdrasil;)
For heaven's bridge burns all in flame,
And the sacred waters seethe.
In Fáfnismál, the dying wyrm Fafnir tells the hero Sigurd that, during the events of Ragnarök, bearing spears, gods will meet at Óskópnir. From there, the gods will cross Bilröst, which will break apart as they cross over it, causing their horses to dredge through an immense river.
Prose Edda
thumb|Bifröst appears in the background as the gods do battle in Battle of the Doomed Gods (1882) by Friedrich Wilhelm Heine.
thumb|Bifröst is shattered in The Twilight of the Gods (1920) by Willy Pogany.
The bridge is mentioned in the Prose Edda books Gylfaginning and Skáldskaparmál, where it is referred to as Bifröst. In chapter 13 of Gylfaginning, Gangleri (King Gylfi in disguise) asks the enthroned figure of High what way exists between heaven and earth. Laughing, High replies that the question isn't an intelligent one, and goes on to explain that the gods built a bridge from heaven and earth. He incredulously asks Gangleri if he has not heard the story before. High says that Gangleri must have seen it, and notes that Gangleri may call it a rainbow. High says that the bridge consists of three colors, has great strength, "and is built with art and skill to a greater extent than other constructions."
High notes that, although the bridge is strong, it will break when "Muspell's lads" attempt to cross it, and their horses will have to make do with swimming over "great rivers." Gangleri says that it doesn't seem that the gods "built the bridge in good faith if it is liable to break, considering that they can do as they please." High responds that the gods do not deserve blame for the breaking of the bridge, for "there is nothing in this world that will be secure when Muspell's sons attack."
In chapter 17, High tells Gangleri that the location of Himinbjörg "stands at the edge of heaven where Bifrost reaches heaven." While describing the god Heimdallr in chapter 27, High says that Heimdallr lives in Himinbjörg by Bifröst, and guards the bridge from mountain jotnar while sitting at the edge of heaven. In chapter 34, High quotes the first of the two Grímnismál stanzas that mention the bridge. In chapter 51, High foretells the events of Ragnarök. High says that, during Ragnarök, the sky will split open, and from the split will ride forth the "sons of Muspell". When the "sons of Muspell" ride over Bifröst it will break, "as was said above."
In the Prose Edda book Skáldskaparmál, the bridge receives a single mention. In chapter 16, a work by the 10th century skald Úlfr Uggason is provided, where Bifröst is referred to as "the powers' way."
Theories
thumb|Bifröst in the background, Heimdallr explains to a young Hnoss how all things came to be (1920) by Willy Pogany.
In his translation of the Poetic Edda, Henry Adams Bellows comments that the Grímnismál stanza mentioning Thor and the bridge stanza may mean that "Thor has to go on foot in the last days of the destruction, when the bridge is burning. Another interpretation, however, is that when Thor leaves the heavens (i.e., when a thunder-storm is over) the rainbow-bridge becomes hot in the sun." Several scholars have proposed that Bifröst may represent the Milky Way.
Adaptations
In the final scene of Richard Wagner's 1869 opera Das Rheingold, the god Froh summons a rainbow bridge, over which the gods cross to enter Valhalla.
In J. R. R. Tolkien's legendarium, the "level bridge" of "The Fall of Númenor", an early version of the Akallabeth, recalls Bifröst. It departs from the earth at a tangent, allowing immortal Elves but not mortal Men to travel the Old Straight Road to the lost earthly paradise of Valinor after the world has been remade.
Bifröst appears in comic books associated with the Marvel Comics character Thor and in subsequent adaptations of those comic books. In the Marvel Cinematic Universe film Thor, Jane Foster describes the Bifröst as an Einstein–Rosen bridge, which functions as a means of transportation across space in a short period of time.
Notes
References
External links
Category:Locations in Norse mythology
Category:Mythological bridges
Category:Rainbows in culture | https://en.wikipedia.org/wiki/Bifröst | 2025-04-05T18:26:40.714596 |
4057 | Battlecruiser | The battlecruiser (also written as battle cruiser or battle-cruiser) was a type of capital ship of the first half of the 20th century. These were similar in displacement, armament and cost to battleships, but differed in form and balance of attributes. Battlecruisers typically had thinner armour (to a varying degree) and a somewhat lighter main gun battery than contemporary battleships, installed on a longer hull with much higher engine power in order to attain greater speeds. The first battlecruisers were designed in the United Kingdom, as a development of the armoured cruiser, at the same time as the dreadnought succeeded the pre-dreadnought battleship. The goal of the design was to outrun any ship with similar armament, and chase down any ship with lesser armament; they were intended to hunt down slower, older armoured cruisers and destroy them with heavy gunfire while avoiding combat with the more powerful but slower battleships. However, as more and more battlecruisers were built, they were increasingly used alongside the better-protected battleships.
Battlecruisers served in the navies of the United Kingdom, Germany, the Ottoman Empire, Australia and Japan during World War I, most notably at the Battle of the Falkland Islands and in the several raids and skirmishes in the North Sea which culminated in a pitched fleet battle, the Battle of Jutland. British battlecruisers in particular suffered heavy losses at Jutland, where poor fire safety and ammunition handling practices left them vulnerable to catastrophic magazine explosions following hits to their main turrets from large-calibre shells. This dismal showing led to a persistent general belief that battlecruisers were too thinly armoured to function successfully. By the end of the war, capital ship design had developed, with battleships becoming faster and battlecruisers becoming more heavily armoured, blurring the distinction between a battlecruiser and a fast battleship. The Washington Naval Treaty, which limited capital ship construction from 1922 onwards, treated battleships and battlecruisers identically, and the new generation of battlecruisers planned by the United States, Great Britain and Japan were scrapped or converted into aircraft carriers under the terms of the treaty.
Improvements in armour design and propulsion created the 1930s "fast battleship" with the speed of a battlecruiser and armour of a battleship, making the battlecruiser in the traditional sense effectively an obsolete concept. Thus from the 1930s on, only the Royal Navy continued to use "battlecruiser" as a classification for the World War I–era capital ships that remained in the fleet; while Japan's battlecruisers remained in service, they had been significantly reconstructed and were re-rated as full-fledged fast battleships. Some new vessels built during that decade, the German s and s and the French s are all sometimes referred to as battlecruisers, although the owning navies referred to them as "battleships" (), "armoured ships" () and "battleships" () respectively.s and s and the French s are all sometimes referred to as battlecruisers, although the owning navies referred to them as "battleships" (), "armoured ships" () and "battleships" () respectively. Since neither their operators nor a significant number of naval historians classify them as such, they are not discussed in this article.|groupNote}}
Battlecruisers were put into action again during World War II, and only one survived to the end, . There was also renewed interest in large "cruiser-killer" type warships whose design was scaled-up from a heavy cruiser rather than a lighter/faster battleship derivative, but few were ever begun and only two members of the were commissioned in time to see war service. Construction of large cruisers as well as fast battleships were curtailed in favor of more-needed aircraft carriers, convoy escorts, and cargo ships.
During (and after) the Cold War, the Soviet of large guided missile cruisers have been the only ships termed "battlecruisers"; the class is also the only example of a nuclear-powered battlecruiser. As of 2024, Russia operates two units: the Pyotr Velikiy has remained in active service since its 1998 commissioning, while the Admiral Nakhimov has been inactive (in storage or refitting) since 1999.
Background
The battlecruiser was developed by the Royal Navy in the first years of the 20th century as an evolution of the armoured cruiser. The first armoured cruisers had been built in the 1870s, as an attempt to give armour protection to ships fulfilling the typical cruiser roles of patrol, trade protection and power projection. However, the results were rarely satisfactory, as the weight of armour required for any meaningful protection usually meant that the ship became almost as slow as a battleship. As a result, navies preferred to build protected cruisers with an armoured deck protecting their engines, or simply no armour at all.
In the 1890s, new Krupp steel armour meant that it was now possible to give a cruiser side armour which would protect it against the quick-firing guns of enemy battleships and cruisers alike. In 1896–97 France and Russia, who were regarded as likely allies in the event of war, started to build large, fast armoured cruisers taking advantage of this. In the event of a war between Britain and France or Russia, or both, these cruisers threatened to cause serious difficulties for the British Empire's worldwide trade.
Britain, which had concluded in 1892 that it needed twice as many cruisers as any potential enemy to adequately protect its empire's sea lanes, responded to the perceived threat by laying down its own large armoured cruisers. Between 1899 and 1905, it completed or laid down seven classes of this type, a total of 35 ships. This building program, in turn, prompted the French and Russians to increase their own construction. The Imperial German Navy began to build large armoured cruisers for use on their overseas stations, laying down eight between 1897 and 1906. In the period 1889–1896, the Royal Navy spent £7.3 million on new large cruisers. From 1897 to 1904, it spent £26.9 million. Many armoured cruisers of the new kind were just as large and expensive as the equivalent battleship.
The increasing size and power of the armoured cruiser led to suggestions in British naval circles that cruisers should displace battleships entirely. The battleship's main advantage was its 12-inch heavy guns, and heavier armour designed to protect from shells of similar size. However, for a few years after 1900 it seemed that those advantages were of little practical value. The torpedo now had a range of 2,000 yards, and it seemed unlikely that a battleship would engage within torpedo range. However, at ranges of more than 2,000 yards it became increasingly unlikely that the heavy guns of a battleship would score any hits, as the heavy guns relied on primitive aiming techniques. The secondary batteries of 6-inch quick-firing guns, firing more plentiful shells, were more likely to hit the enemy. As naval expert Fred T. Jane wrote in June 1902,<blockquote>Is there anything outside of 2,000 yards that the big gun in its hundreds of tons of medieval castle can affect, that its weight in 6-inch guns without the castle could not affect equally well? And inside 2,000, what, in these days of gyros, is there that the torpedo cannot effect with far more certainty?</blockquote>
In 1904, Admiral John "Jacky" Fisher became First Sea Lord, the senior officer of the Royal Navy. He had for some time thought about the development of a new fast armoured ship. He was very fond of the "second-class battleship" , a faster, more lightly armoured battleship. As early as 1901, there is confusion in Fisher's writing about whether he saw the battleship or the cruiser as the model for future developments. This did not stop him from commissioning designs from naval architect W. H. Gard for an armoured cruiser with the heaviest possible armament for use with the fleet. The design Gard submitted was for a ship between , capable of , armed with four 9.2-inch and twelve guns in twin gun turrets and protected with six inches of armour along her belt and 9.2-inch turrets, on her 7.5-inch turrets, 10 inches on her conning tower and up to on her decks. However, mainstream British naval thinking between 1902 and 1904 was clearly in favour of heavily armoured battleships, rather than the fast ships that Fisher favoured.
The Battle of Tsushima proved the effectiveness of heavy guns over intermediate ones and the need for a uniform main caliber on a ship for fire control. Even before this, the Royal Navy had begun to consider a shift away from the mixed-calibre armament of the 1890s pre-dreadnought to an "all-big-gun" design, and preliminary designs circulated for battleships with all 12-inch or all 10-inch guns and armoured cruisers with all 9.2-inch guns. In late 1904, not long after the Royal Navy had decided to use 12-inch guns for its next generation of battleships because of their superior performance at long range, Fisher began to argue that big-gun cruisers could replace battleships altogether. The continuing improvement of the torpedo meant that submarines and destroyers would be able to destroy battleships; this in Fisher's view heralded the end of the battleship or at least compromised the validity of heavy armour protection. Nevertheless, armoured cruisers would remain vital for commerce protection.
Fisher's views were very controversial within the Royal Navy, and even given his position as First Sea Lord, he was not in a position to insist on his own approach. Thus he assembled a "Committee on Designs", consisting of a mixture of civilian and naval experts, to determine the approach to both battleship and armoured cruiser construction in the future. While the stated purpose of the committee was to investigate and report on future requirements of ships, Fisher and his associates had already made key decisions. The terms of reference for the committee were for a battleship capable of with 12-inch guns and no intermediate calibres, capable of docking in existing drydocks; and a cruiser capable of , also with 12-inch guns and no intermediate armament, armoured like , the most recent armoured cruiser, and also capable of using existing docks.
The construction of the new class was begun in 1906 and completed in 1908, delayed perhaps to allow their designers to learn from any problems with Dreadnought. The ships fulfilled the design requirement quite closely. On a displacement similar to Dreadnought, the Invincibles were longer to accommodate additional boilers and more powerful turbines to propel them at . Moreover, the new ships could maintain this speed for days, whereas pre-dreadnought battleships could not generally do so for more than an hour. Armed with eight 12-inch Mk X guns, compared to ten on Dreadnought, they had of armour protecting the hull and the gun turrets. (Dreadnoughts armour, by comparison, was at its thickest.) The class had a very marked increase in speed, displacement and firepower compared to the most recent armoured cruisers but no more armour.
Confusion about how to refer to these new battleship-size armoured cruisers set in almost immediately. Even in late 1905, before work was begun on the Invincibles, a Royal Navy memorandum refers to "large armoured ships" meaning both battleships and large cruisers. In October 1906, the Admiralty began to classify all post-Dreadnought battleships and armoured cruisers as "capital ships", while Fisher used the term "dreadnought" to refer either to his new battleships or the battleships and armoured cruisers together. At the same time, the Invincible class themselves were referred to as "cruiser-battleships", "dreadnought cruisers"; the term "battlecruiser" was first used by Fisher in 1908. Finally, on 24 November 1911, Admiralty Weekly Order No. 351 laid down that "All cruisers of the "Invincible" and later types are for the future to be described and classified as "battle cruisers" to distinguish them from the armoured cruisers of earlier date."
Along with questions over the new ships' nomenclature came uncertainty about their actual role due to their lack of protection. If they were primarily to act as scouts for the battle fleet and hunter-killers of enemy cruisers and commerce raiders, then the seven inches of belt armour with which they had been equipped would be adequate. If, on the other hand, they were expected to reinforce a battle line of dreadnoughts with their own heavy guns, they were too thin-skinned to be safe from an enemy's heavy guns. The Invincibles were essentially extremely large, heavily armed, fast armoured cruisers. However, the viability of the armoured cruiser was already in doubt. A cruiser that could have worked with the Fleet might have been a more viable option for taking over that role.
Because of the Invincibles size and armament, naval authorities considered them capital ships almost from their inception—an assumption that might have been inevitable. Complicating matters further was that many naval authorities, including Lord Fisher, had made overoptimistic assessments from the Battle of Tsushima in 1905 about the armoured cruiser's ability to survive in a battle line against enemy capital ships due to their superior speed. These assumptions had been made without taking into account the Russian Baltic Fleet's inefficiency and tactical ineptitude. By the time the term "battlecruiser" had been given to the Invincibles, the idea of their parity with battleships had been fixed in many people's minds. Those in favor of the battlecruiser countered with two points—first, since all capital ships were vulnerable to new weapons such as the torpedo, armour had lost some of its validity; and second, because of its greater speed, the battlecruiser could control the range at which it engaged an enemy.
Battlecruisers in the dreadnought arms race
Between the launching of the Invincible''s to just after the outbreak of the First World War, the battlecruiser played a junior role in the developing dreadnought arms race, as it was never wholeheartedly adopted as the key weapon in British imperial defence, as Fisher had presumably desired. The biggest factor for this lack of acceptance was the marked change in Britain's strategic circumstances between their conception and the commissioning of the first ships. The prospective enemy for Britain had shifted from a Franco-Russian alliance with many armoured cruisers to a resurgent and increasingly belligerent Germany. Diplomatically, Britain had entered the Entente cordiale in 1904 and the Anglo-Russian Entente. Neither France nor Russia posed a particular naval threat; the Russian navy had largely been sunk or captured in the Russo-Japanese War of 1904–1905, while the French were in no hurry to adopt the new dreadnought-type design. Britain also boasted very cordial relations with two of the significant new naval powers: Japan (bolstered by the Anglo-Japanese Alliance, signed in 1902 and renewed in 1905), and the US. These changed strategic circumstances, and the great success of the Dreadnought ensured that she rather than the Invincible became the new model capital ship. Nevertheless, battlecruiser construction played a part in the renewed naval arms race sparked by the Dreadnought.
For their first few years of service, the Invincibles entirely fulfilled Fisher's vision of being able to sink any ship fast enough to catch them, and run from any ship capable of sinking them. An Invincible would also, in many circumstances, be able to take on an enemy pre-dreadnought battleship. Naval circles concurred that the armoured cruiser in its current form had come to the logical end of its development and the Invincibles were so far ahead of any enemy armoured cruiser in firepower and speed that it proved difficult to justify building more or bigger cruisers. This lead was extended by the surprise both Dreadnought and Invincible produced by having been built in secret; this prompted most other navies to delay their building programmes and radically revise their designs. This was particularly true for cruisers, because the details of the Invincible class were kept secret for longer; this meant that the last German armoured cruiser, , was armed with only guns, and was no match for the new battlecruisers.
The Royal Navy's early superiority in capital ships led to the rejection of a 1905–1906 design that would, essentially, have fused the battlecruiser and battleship concepts into what would eventually become the fast battleship. The 'X4' design combined the full armour and armament of Dreadnought with the 25-knot speed of Invincible. The additional cost could not be justified given the existing British lead and the new Liberal government's need for economy; the slower and cheaper , a relatively close copy of Dreadnought, was adopted instead. The X4 concept would eventually be fulfilled in the and later by other navies.
The next British battlecruisers were the three , slightly improved Invincibles built to fundamentally the same specification, partly due to political pressure to limit costs and partly due to the secrecy surrounding German battlecruiser construction, particularly about the heavy armour of . This class came to be widely seen as a mistake and the next generation of British battlecruisers were markedly more powerful. By 1909–1910 a sense of national crisis about rivalry with Germany outweighed cost-cutting, and a naval panic resulted in the approval of a total of eight capital ships in 1909–1910. Fisher pressed for all eight to be battlecruisers, but was unable to have his way; he had to settle for six battleships and two battlecruisers of the . The Lions carried eight 13.5-inch guns, the now-standard caliber of the British "super-dreadnought" battleships. Speed increased to and armour protection, while not as good as in German designs, was better than in previous British battlecruisers, with armour belt and barbettes. The two Lions were followed by the very similar .
By 1911 Germany had built battlecruisers of her own, and the superiority of the British ships could no longer be assured. Moreover, the German Navy did not share Fisher's view of the battlecruiser. In contrast to the British focus on increasing speed and firepower, Germany progressively improved the armour and staying power of their ships to better the British battlecruisers. Von der Tann, begun in 1908 and completed in 1910, carried eight 11.1-inch guns, but with 11.1-inch (283 mm) armour she was far better protected than the Invincibles. The two s were quite similar but carried ten 11.1-inch guns of an improved design. , designed in 1909 and finished in 1913, was a modified Moltke; speed increased by one knot to , while her armour had a maximum thickness of 12 inches, equivalent to the s of a few years earlier. Seydlitz was Germany's last battlecruiser completed before World War I.
The next step in battlecruiser design came from Japan. The Imperial Japanese Navy had been planning the ships from 1909, and was determined that, since the Japanese economy could support relatively few ships, each would be more powerful than its likely competitors. Initially the class was planned with the Invincibles as the benchmark. On learning of the British plans for Lion, and the likelihood that new U.S. Navy battleships would be armed with guns, the Japanese decided to radically revise their plans and go one better. A new plan was drawn up, carrying eight 14-inch guns, and capable of , thus marginally having the edge over the Lions in speed and firepower. The heavy guns were also better-positioned, being superfiring both fore and aft with no turret amidships. The armour scheme was also marginally improved over the Lions, with nine inches of armour on the turrets and on the barbettes. The first ship in the class was built in Britain, and a further three constructed in Japan. The Japanese also re-classified their powerful armoured cruisers of the Tsukuba and Ibuki classes, carrying four 12-inch guns, as battlecruisers; nonetheless, their armament was weaker and they were slower than any battlecruiser.
The next British battlecruiser, , was intended initially as the fourth ship in the Lion class, but was substantially redesigned. She retained the eight 13.5-inch guns of her predecessors, but they were positioned like those of Kongō for better fields of fire. She was faster (making on sea trials), and carried a heavier secondary armament. Tiger was also more heavily armoured on the whole; while the maximum thickness of armour was the same at nine inches, the height of the main armour belt was increased. Not all the desired improvements for this ship were approved, however. Her designer, Sir Eustace Tennyson d'Eyncourt, had wanted small-bore water-tube boilers and geared turbines to give her a speed of , but he received no support from the authorities and the engine makers refused his request.
1912 saw work begin on three more German battlecruisers of the , the first German battlecruisers to mount 12-inch guns. These ships, like Tiger and the Kongōs, had their guns arranged in superfiring turrets for greater efficiency. Their armour and speed was similar to the previous Seydlitz class. In 1913, the Russian Empire also began the construction of the four-ship , which were designed for service in the Baltic Sea. These ships were designed to carry twelve 14-inch guns, with armour up to 12 inches thick, and a speed of . The heavy armour and relatively slow speed of these ships made them more similar to German designs than to British ships; construction of the Borodinos was halted by the First World War and all were scrapped after the end of the Russian Civil War.
World War I
Construction
For most of the combatants, capital ship construction was very limited during the war. Germany finished the Derfflinger class and began work on the . The Mackensens were a development of the Derfflinger class, with 13.8-inch guns and a broadly similar armour scheme, designed for .
In Britain, Jackie Fisher returned to the office of First Sea Lord in October 1914. His enthusiasm for big, fast ships was unabated, and he set designers to producing a design for a battlecruiser with 15-inch guns. Because Fisher expected the next German battlecruiser to steam at 28 knots, he required the new British design to be capable of 32 knots. He planned to reorder two s, which had been approved but not yet laid down, to a new design. Fisher finally received approval for this project on 28 December 1914 and they became the . With six 15-inch guns but only 6-inch armour they were a further step forward from Tiger in firepower and speed, but returned to the level of protection of the first British battlecruisers.
At the same time, Fisher resorted to subterfuge to obtain another three fast, lightly armoured ships that could use several spare gun turrets left over from battleship construction. These ships were essentially light battlecruisers, and Fisher occasionally referred to them as such, but officially they were classified as large light cruisers. This unusual designation was required because construction of new capital ships had been placed on hold, while there were no limits on light cruiser construction. They became and her sisters and , and there was a bizarre imbalance between their main guns of 15 inches (or in Furious) and their armour, which at thickness was on the scale of a light cruiser. The design was generally regarded as a failure (nicknamed in the Fleet Outrageous, Uproarious and Spurious), though the later conversion of the ships to aircraft carriers was very successful. Fisher also speculated about a new mammoth, but lightly built battlecruiser, that would carry guns, which he termed ; this never got beyond the concept stage.
It is often held that the Renown and Courageous classes were designed for Fisher's plan to land troops (possibly Russian) on the German Baltic coast. Specifically, they were designed with a reduced draught, which might be important in the shallow Baltic. This is not clear-cut evidence that the ships were designed for the Baltic: it was considered that earlier ships had too much draught and not enough freeboard under operational conditions. Roberts argues that the focus on the Baltic was probably unimportant at the time the ships were designed, but was inflated later, after the disastrous Dardanelles Campaign.
The final British battlecruiser design of the war was the , which was born from a requirement for an improved version of the Queen Elizabeth battleship. The project began at the end of 1915, after Fisher's final departure from the Admiralty. While initially envisaged as a battleship, senior sea officers felt that Britain had enough battleships, but that new battlecruisers might be required to combat German ships being built (the British overestimated German progress on the Mackensen class as well as their likely capabilities). A battlecruiser design with eight 15-inch guns, 8 inches of armour and capable of 32 knots was decided on. The experience of battlecruisers at the Battle of Jutland meant that the design was radically revised and transformed again into a fast battleship with armour up to 12 inches thick, but still capable of . The first ship in the class, , was built according to this design to counter the possible completion of any of the Mackensen-class ship. The plans for her three sisters, on which little work had been done, were revised once more later in 1916 and in 1917 to improve protection.
The Admiral class would have been the only British ships capable of taking on the German Mackensen class; nevertheless, German shipbuilding was drastically slowed by the war, and while two Mackensens were launched, none were ever completed. The Germans also worked briefly on a further three ships, of the , which were modified versions of the Mackensens with 15-inch guns. Work on the three additional Admirals was suspended in March 1917 to enable more escorts and merchant ships to be built to deal with the new threat from U-boats to trade. They were finally cancelled in February 1919.
The German battlecruiser perhaps made the most impact early in the war. Stationed in the Mediterranean, she and the escorting light cruiser evaded British and French ships on the outbreak of war, and steamed to Constantinople (Istanbul) with two British battlecruisers in hot pursuit. The two German ships were handed over to the Ottoman Navy, and this was instrumental in bringing the Ottoman Empire into the war as one of the Central Powers. Goeben herself, renamed Yavuz Sultan Selim, fought engagements against the Imperial Russian Navy in the Black Sea before being knocked out of the action for the remainder of the war after the Battle of Imbros against British forces in the Aegean Sea in January 1918.
The original battlecruiser concept proved successful in December 1914 at the Battle of the Falkland Islands. The British battlecruisers and did precisely the job for which they were intended when they chased down and annihilated the German East Asia Squadron, centered on the armoured cruisers and , along with three light cruisers, commanded by Admiral Maximilian Graf Von Spee, in the South Atlantic Ocean. Prior to the battle, the Australian battlecruiser had unsuccessfully searched for the German ships in the Pacific.
During the Battle of Dogger Bank in 1915, the aftermost barbette of the German flagship Seydlitz was struck by a British 13.5-inch shell from HMS Lion. The shell did not penetrate the barbette, but it dislodged a piece of the barbette armour that allowed the flame from the shell's detonation to enter the barbette. The propellant charges being hoisted upwards were ignited, and the fireball flashed up into the turret and down into the magazine, setting fire to charges removed from their brass cartridge cases. The gun crew tried to escape into the next turret, which allowed the flash to spread into that turret as well, killing the crews of both turrets. Seydlitz was saved from near-certain destruction only by emergency flooding of her after magazines, which had been effected by Wilhelm Heidkamp. This near-disaster was due to the way that ammunition handling was arranged and was common to both German and British battleships and battlecruisers, but the lighter protection on the latter made them more vulnerable to the turret or barbette being penetrated. The Germans learned from investigating the damaged Seydlitz and instituted measures to ensure that ammunition handling minimised any possible exposure to flash.
Apart from the cordite handling, the battle was mostly inconclusive, though both the British flagship Lion and Seydlitz were severely damaged. Lion lost speed, causing her to fall behind the rest of the battleline, and Beatty was unable to effectively command his ships for the remainder of the engagement. A British signalling error allowed the German battlecruisers to withdraw, as most of Beatty's squadron mistakenly concentrated on the crippled armoured cruiser Blücher, sinking her with great loss of life. The British blamed their failure to win a decisive victory on their poor gunnery and attempted to increase their rate of fire by stockpiling unprotected cordite charges in their ammunition hoists and barbettes.
At the Battle of Jutland on 31 May 1916, both British and German battlecruisers were employed as fleet units. The British battlecruisers became engaged with both their German counterparts, the battlecruisers, and then German battleships before the arrival of the battleships of the British Grand Fleet. The result was a disaster for the Royal Navy's battlecruiser squadrons: Invincible, Queen Mary, and exploded with the loss of all but a handful of their crews. The exact reason why the ships' magazines detonated is not known, but the abundance of exposed cordite charges stored in their turrets, ammunition hoists and working chambers in the quest to increase their rate of fire undoubtedly contributed to their loss. Beatty's flagship Lion herself was almost lost in a similar manner, save for the heroic actions of Major Francis Harvey.
The better-armoured German battlecruisers fared better, in part due to the poor performance of British fuzes (the British shells tended to explode or break up on impact with the German armour). —the only German battlecruiser lost at Jutland—had only 128 killed, for instance, despite receiving more than thirty hits. The other German battlecruisers, , Von der Tann, Seydlitz, and , were all heavily damaged and required extensive repairs after the battle, Seydlitz barely making it home, for they had been the focus of British fire for much of the battle.
Interwar period
In the years immediately after World War I, Britain, Japan and the US all began design work on a new generation of ever more powerful battleships and battlecruisers. The new burst of shipbuilding that each nation's navy desired was politically controversial and potentially economically crippling. This nascent arms race was prevented by the Washington Naval Treaty of 1922, where the major naval powers agreed to limits on capital ship numbers. The German navy was not represented at the talks; under the terms of the Treaty of Versailles, Germany was not allowed any modern capital ships at all.
Through the 1920s and 1930s only Britain and Japan retained battlecruisers, often modified and rebuilt from their original designs. The line between the battlecruiser and the modern fast battleship became blurred; indeed, the Japanese Kongōs were formally redesignated as battleships after their very comprehensive reconstruction in the 1930s.Plans in the aftermath of World War IHood, launched in 1918, was the last World War I battlecruiser to be completed. Owing to lessons from Jutland, the ship was modified during construction; the thickness of her belt armour was increased by an average of 50 percent and extended substantially, she was given heavier deck armour, and the protection of her magazines was improved to guard against the ignition of ammunition. This was hoped to be capable of resisting her own weapons—the classic measure of a "balanced" battleship. Hood was the largest ship in the Royal Navy when completed; because of her great displacement, in theory she combined the firepower and armour of a battleship with the speed of a battlecruiser, causing some to refer to her as a fast battleship. However, her protection was markedly less than that of the British battleships built immediately after World War I, the . The United States Navy, which had worked on its battlecruiser designs since 1913 and watched the latest developments in this class with great care, responded with the . If completed as planned, they would have been exceptionally fast and well armed with eight 16-inch guns, but carried armour little better than the Invincibles—this after an increase in protection following Jutland. The final stage in the post-war battlecruiser race came with the British response to the Amagi and Lexington types: four G3 battlecruisers. Royal Navy documents of the period often described any battleship with a speed of over about as a battlecruiser, regardless of the amount of protective armour, although the G3 was considered by most to be a well-balanced fast battleship.
The Washington Naval Treaty meant that none of these designs came to fruition. Ships that had been started were either broken up on the slipway or converted to aircraft carriers. In Japan, Amagi and were selected for conversion. Amagi was damaged beyond repair by the 1923 Great Kantō earthquake and was broken up for scrap; the hull of one of the proposed Tosa-class battleships, , was converted in her stead. The United States Navy also converted two battlecruiser hulls into aircraft carriers in the wake of the Washington Treaty: and , although this was only considered marginally preferable to scrapping the hulls outright (the remaining four: Constellation, Ranger, Constitution and United States were scrapped). In Britain, Fisher's "large light cruisers," were converted to carriers. Furious had already been partially converted during the war and Glorious and Courageous were similarly converted.
Rebuilding programmes
In total, nine battlecruisers survived the Washington Naval Treaty, although HMS Tiger later became a victim of the London Naval Conference 1930 and was scrapped. Because their high speed made them valuable surface units in spite of their weaknesses, most of these ships were significantly updated before World War II. and were modernized significantly in the 1920s and 1930s. Between 1934 and 1936, Repulse was partially modernized and had her bridge modified, an aircraft hangar, catapult and new gunnery equipment added and her anti-aircraft armament increased. Renown underwent a more thorough reconstruction between 1937 and 1939. Her deck armour was increased, new turbines and boilers were fitted, an aircraft hangar and catapult added and she was completely rearmed aside from the main guns which had their elevation increased to +30 degrees. The bridge structure was also removed and a large bridge similar to that used in the battleships installed in its place. While conversions of this kind generally added weight to the vessel, Renowns tonnage actually decreased due to a substantially lighter power plant. Similar thorough rebuildings planned for Repulse and Hood were cancelled due to the advent of World War II.
Unable to build new ships, the Imperial Japanese Navy also chose to improve its existing battlecruisers of the Kongō class (initially the , , and —the only later as it had been disarmed under the terms of the Washington treaty) in two substantial reconstructions (one for Hiei). During the first of these, elevation of their main guns was increased to +40 degrees, anti-torpedo bulges and of horizontal armour added, and a "pagoda" mast with additional command positions built up. This reduced the ships' speed to . The second reconstruction focused on speed as they had been selected as fast escorts for aircraft carrier task forces. Completely new main engines, a reduced number of boilers and an increase in hull length by allowed them to reach up to 30 knots once again. They were reclassified as "fast battleships," although their armour and guns still fell short compared to surviving World War I–era battleships in the American or the British navies, with dire consequences during the Pacific War, when Hiei and Kirishima were easily crippled by US gunfire during actions off Guadalcanal, forcing their scuttling shortly afterwards. Perhaps most tellingly, Hiei was crippled by medium-caliber gunfire from heavy and light cruisers in a close-range night engagement.
There were two exceptions: Turkey's Yavuz Sultan Selim and the Royal Navy's Hood. The Turkish Navy made only minor improvements to the ship in the interwar period, which primarily focused on repairing wartime damage and the installation of new fire control systems and anti-aircraft batteries. Hood was in constant service with the fleet and could not be withdrawn for an extended reconstruction. She received minor improvements over the course of the 1930s, including modern fire control systems, increased numbers of anti-aircraft guns, and in March 1941, radar.
Naval rearmament
In the late 1930s navies began to build capital ships again, and during this period a number of large commerce raiders and small, fast battleships were built that are sometimes referred to as battlecruisers, such as the s and s and the French s.s and s and the French s are all sometimes referred to as battlecruisers, although the owning navies referred to them as "battleships" (), "armoured ships" () and "battleships" () respectively. Since neither their operators nor a significant number of naval historians classify them as such, they are not discussed in this article.|groupNote}} Germany and Russia designed new battlecruisers during this period, though only the latter laid down two of the 35,000-ton . They were still on the slipways when the Germans invaded in 1941 and construction was suspended. Both ships were scrapped after the war. The Germans planned three battlecruisers of the as part of the expansion of the Kriegsmarine (Plan Z). With six 15-inch guns, high speed, excellent range, but very thin armour, they were intended as commerce raiders. Only one was ordered shortly before World War II; no work was ever done on it. No names were assigned, and they were known by their contract names: 'O', 'P', and 'Q'. The new class was not universally welcomed in the Kriegsmarine. Their abnormally-light protection gained it the derogatory nickname Ohne Panzer Quatsch (without armour nonsense) within certain circles of the Navy.
World War II
The Royal Navy deployed some of its battlecruisers during the Norwegian Campaign in April 1940. The and the were engaged during the action off Lofoten by Renown in very bad weather and disengaged after Gneisenau was damaged. One of Renowns 15-inch shells passed through Gneisenaus director-control tower without exploding, severing electrical and communication cables as it went and destroyed the rangefinders for the forward 150 mm (5.9 in) turrets. Main-battery fire control had to be shifted aft due to the loss of electrical power. Another shell from Renown knocked out Gneisenaus aft turret. The British ship was struck twice by German shells that failed to inflict any significant damage. She was the only pre-war battlecruiser to survive the war.
In the early years of the war various German ships had a measure of success hunting merchant ships in the Atlantic. Allied battlecruisers such as Renown, Repulse, and the fast battleships Dunkerque and were employed on operations to hunt down the commerce-raiding German ships. The one stand-up fight occurred when the battleship and the heavy cruiser sortied into the North Atlantic to attack British shipping and were intercepted by Hood and the battleship in May 1941 in the Battle of the Denmark Strait. Hood was destroyed when the Bismarcks 15-inch shells caused a magazine explosion. Only three men survived.
The first battlecruiser to see action in the Pacific War was Repulse when she was sunk by Japanese torpedo bombers north of Singapore on 10 December 1941 whilst in company with Prince of Wales. She was lightly damaged by a single bomb and near-missed by two others in the first Japanese attack. Her speed and agility enabled her to avoid the other attacks by level bombers and dodge 33 torpedoes. The last group of torpedo bombers attacked from multiple directions and Repulse was struck by five torpedoes. She quickly capsized with the loss of 27 officers and 486 crewmen; 42 officers and 754 enlisted men were rescued by the escorting destroyers. The loss of Repulse and Prince of Wales conclusively proved the vulnerability of capital ships to aircraft without air cover of their own.
The Japanese Kongō-class battlecruisers were extensively used as carrier escorts for most of their wartime career due to their high speed. Although classified as fast battleships by the Japanese, their World War I–era armament was weaker and their upgraded armour was still thin compared to contemporary battleships. On 13 November 1942, during the First Naval Battle of Guadalcanal, Hiei stumbled across American cruisers and destroyers at point-blank range. The ship was badly damaged in the encounter and had to be towed by her sister ship Kirishima. Both were spotted by American aircraft the following morning and Kirishima was forced to cast off her tow because of repeated aerial attacks. Hieis captain ordered her crew to abandon ship after further damage and scuttled Hiei in the early evening of 14 November. On the night of 14/15 November during the Second Naval Battle of Guadalcanal, Kirishima returned to Ironbottom Sound, but encountered the American battleships and . While failing to detect Washington, Kirishima engaged South Dakota with some effect. Washington opened fire a few minutes later at short range and badly damaged Kirishima, knocking out her aft turrets, jamming her rudder, and hitting the ship below the waterline. The flooding proved to be uncontrollable and Kirishima capsized three and a half hours later.
Returning to Japan after the Battle of Leyte Gulf, Kongō was torpedoed and sunk by the American submarine on 21 November 1944.Large cruisers or "cruiser killers"
's two "large cruisers"]]
A late renaissance in popularity of ships between battleships and cruisers in size occurred on the eve of World War II. Described by some as battlecruisers, but never classified as capital ships, they were variously described as "super cruisers", "large cruisers" or even "unrestricted cruisers". The Dutch, American, and Japanese navies all planned these new classes specifically to counter the heavy cruisers, or their counterparts, being built by their naval rivals.
The first such battlecruisers were the Dutch Design 1047, designed to protect their colonies in the East Indies in the face of Japanese aggression. Never officially assigned names, these ships were designed with German and Italian assistance. While they broadly resembled the German Scharnhorst class and had the same main battery, they would have been more lightly armoured and only protected against eight-inch gunfire. Although the design was mostly completed, work on the vessels never commenced as the Germans overran the Netherlands in May 1940. The first ship would have been laid down in June of that year.
The only class of these late battlecruisers actually built were the United States Navy's "large cruisers". Two of them were completed, and ; a third, , was cancelled while under construction and three others, to be named Philippines, Puerto Rico and Samoa, were cancelled before they were laid down. The USN classified them "large cruisers" instead of battlecruisers. These ships were named after territories or protectorates, while battleships were named after states and cruisers after cities. With a displacement of and a main armament of nine 12-inch guns in three triple turrets, they were twice the size of s and had guns some 50% larger in diameter. The Alaskas design was a scaled-up cruiser rather than a lighter/faster battleship derivative, as they lacked the thick armoured belt and intricate torpedo defence system of contemporary battleships. However, unlike World War I-era battlecruisers, the Alaskas were considered a balanced design according to cruiser standards as their protection could withstand fire from their own caliber of gun, albeit only in a very narrow range band. They were designed to hunt down Japanese heavy cruisers, though by the time they entered service most Japanese cruisers had been sunk by American aircraft or submarines. Like the contemporary fast battleships, their speed ultimately made them more useful as carrier escorts and bombardment ships than as the surface combatants they were developed to be.
The Japanese started designing the B64 class, which was similar to the Alaska but with guns. News of the Alaskas led them to upgrade the design, creating Design B-65. Armed with 356 mm guns, the B65s would have been the best armed of the new breed of battlecruisers, but they still would have had only sufficient protection to keep out eight-inch shells. Much like the Dutch, the Japanese got as far as completing the design for the B65s, but never laid them down. By the time the designs were ready the Japanese Navy recognized that they had little use for the vessels and that their priority for construction should lie with aircraft carriers. Like the Alaskas, the Japanese did not call these ships battlecruisers, referring to them instead as super-heavy cruisers.Cold War–era designsIn spite of the fact that most navies abandoned the battleship and battlecruiser concepts after World War II, Joseph Stalin's fondness for big-gun-armed warships caused the Soviet Union to plan a large cruiser class in the late 1940s. In the Soviet Navy, they were termed "heavy cruisers" (tyazhelny kreyser). The fruits of this program were the Project 82 (Stalingrad) cruisers, of standard load, nine guns and a speed of . Three ships were laid down in 1951–1952, but they were cancelled in April 1953 after Stalin's death. Only the central armoured hull section of the first ship, Stalingrad, was launched in 1954 and then used as a target.
The Soviet is sometimes referred to as a battlecruiser. This description arises from their over displacement, which is roughly equal to that of a First World War battleship and more than twice the displacement of contemporary cruisers; upon entry into service, Kirov was the largest surface combatant to be built since World War II. The Kirov class lacks the armour that distinguishes battlecruisers from ordinary cruisers and they are classified as heavy nuclear-powered missile cruisers (Тяжелый Атомный Ракетный Крейсер (ТАРКР)) by Russia, with their primary surface armament consisting of twenty P-700 Granit surface to surface missiles. Four members of the class were completed during the 1980s and 1990s, but due to budget constraints only the is operational with the Russian Navy, though plans were announced in 2010 to return the other three ships to service. As of 2021, was being refitted, but the other two ships are reportedly beyond economical repair.Operators* operates one with one more being overhauled.Former operators
* five surviving battlecruisers were all scuttled at Scapa Flow in 1919.
* decommissioned its only battlecruiser HMAS Australia in 1921.
* whose s (upgraded and reclassified as fast battleships in the 1930s) all served in and were sunk in World War II, the last in 1945.
* last battlecruiser, HMS Renown was decommissioned in 1945, following World War II.
* two Alaska-class large cruisers were both decommissioned in 1947.
* decommissioned its only battlecruiser TCG Yavuz in 1950.
See also
* List of battlecruisers
* List of battlecruisers of World War I
* List of battlecruisers of World War II
* List of ships of the Second World War
* List of sunken battlecruisers
Footnotes
Notes
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* External links
* [http://www.maritimequest.com/warship_directory/20th_century_battleship_overview.htm Maritimequest Battleships & Battlecruisers of the 20th century]
* [http://www.worldwar1.co.uk/battlecr.htm British and German Battlecruisers of the First World War]
* [http://www.navsource.org/archives/04idx.htm Navsource Online]
Category:Ship types
Category:Battlecruisers | https://en.wikipedia.org/wiki/Battlecruiser | 2025-04-05T18:26:40.748218 |
4059 | Bob Hawke | | image = File:Bob Hawke-1983.jpg
| caption = Official portrait, 1983
| order = 23rd
| office = Prime Minister of Australia
| monarch = Elizabeth II
| governor-general =
| deputy =
| term_start = 11 March 1983
| term_end = 20 December 1991
| predecessor = Malcolm Fraser
| successor = Paul Keating
| office2 = 13th Leader of the Labor Party
| deputy2 =
| term_start2 = 8 February 1983
| term_end2 = 19 December 2014
| predecessor2 = Bill Hayden
| successor2 = Paul Keating
| office3 = Leader of the Opposition
| primeminister3 = Malcolm Fraser
| deputy3 = Lionel Bowen
| term_start3 = 8 February 1983
| term_end3 = 11 March 1983
| predecessor3 = Bill Hayden
| successor3 = Andrew Peacock
| parliament5 = Australian
| constituency_MP5 = Wills
| term_start5 = 18 October 1980
| term_end5 = 20 February 1992
| predecessor5 = Gordon Bryant
| successor5 = Phil Cleary
| office6 = National President of the Labor Party
| term_start6 = 7 June 1973
| term_end6 = 2 August 1978
| predecessor6 = Tom Burns
| successor6 = Neil Batt
| office7 = National President of the Australian Council of Trade Unions
| term_start7 = 10 September 1969
| term_end7 = 1 September 1980
| predecessor7 = Albert Monk
| successor7 = Cliff Dolan
| birth_name = Robert James Lee Hawke
| birth_date
| birth_place = Border Town<!-- called "Border Town" until 1979 -->, South Australia, Australia
| death_date
| death_place = Northbridge, New South Wales, Australia
| resting_place = Macquarie Park
| party = Labor
| spouse |}}
| children = 4
| father = Clem Hawke
| mother =
| relatives = Bert Hawke (uncle)
| education =
| website =
| signature = Sir Bob Hawke signature.svg
| module
}}
Robert James Lee Hawke (9 December 1929 – 16 May 2019) was an Australian politician and trade unionist who served as the 23rd prime minister of Australia from 1983 to 1991. He held office as the leader of the Australian Labor Party (ALP), having previously served as the president of the Australian Council of Trade Unions from 1969 to 1980 and president of the Labor Party national executive from 1973 to 1978.
Hawke was born in Border Town, South Australia. He attended the University of Western Australia and went on to study at University College, Oxford as a Rhodes Scholar. In 1956, Hawke joined the Australian Council of Trade Unions (ACTU) as a research officer. Having risen to become responsible for national wage case arbitration, he was elected as president of the ACTU in 1969, where he achieved a high public profile. In 1973, he was appointed as president of the Labor Party.
In 1980, Hawke stood down from his roles as ACTU and Labor Party president to announce his intention to enter parliamentary politics, and was subsequently elected to the Australian House of Representatives as a member of parliament (MP) for the division of Wills at the 1980 federal election. Three years later, he was elected unopposed to replace Bill Hayden as leader of the Australian Labor Party, and within five weeks led Labor to a landslide victory at the 1983 election, and was sworn in as prime minister. He led Labor to victory a further three times, with successful outcomes in 1984, 1987 and 1990 elections, making him the most electorally successful prime minister in the history of the Labor Party.
The Hawke government implemented a significant number of reforms, including major economic reforms, the establishment of Landcare, the introduction of the universal healthcare scheme Medicare, brokering the Prices and Incomes Accord, creating APEC, floating the Australian dollar, deregulating the financial sector, introducing the Family Assistance Scheme, enacting the Sex Discrimination Act to prevent discrimination in the workplace, declaring "Advance Australia Fair" as the country's national anthem, initiating superannuation pension schemes for all workers, negotiating a ban on mining in Antarctica and overseeing passage of the Australia Act that removed all remaining jurisdiction by the United Kingdom from Australia.
In June 1991, Hawke faced a leadership challenge by the Treasurer, Paul Keating, but Hawke managed to retain power; however, Keating mounted a second challenge six months later, and won narrowly, replacing Hawke as prime minister. Hawke subsequently retired from parliament, pursuing both a business career and a number of charitable causes, until his death in 2019, aged 89. Hawke remains his party's longest-serving Prime Minister, and Australia's third-longest-serving prime minister behind Robert Menzies and John Howard. He is also the only prime minister to be born in South Australia and the only one raised and educated in Western Australia. Hawke holds the highest-ever approval rating for an Australian prime minister, reaching 75% approval in 1984. Hawke is frequently ranked within the upper tier of Australian prime ministers by historians.
Early life and family
Bob Hawke was born on 9 December 1929 in Border Town, South Australia,<!-- called "Border Town" until 1979 --> the second child of Arthur "Clem" Hawke (1898–1989), a Congregationalist minister, and his wife Edith Emily (Lee) (1897–1979) (known as Ellie), a schoolteacher. His uncle, Bert, was the Labor premier of Western Australia between 1953 and 1959.
Hawke's brother Neil, who was seven years his senior, died at the age of seventeen after contracting meningitis, for which there was no cure at the time. At the age of fifteen, he presciently boasted to friends that he would one day become the prime minister of Australia.
At the age of seventeen, Hawke had a serious crash while riding his Panther motorcycle that left him in a critical condition for several days. This near-death experience acted as his catalyst, driving him to make the most of his talents and not let his abilities go to waste. He joined the Labor Party in 1947 at the age of eighteen.
Education and early career
Hawke was educated at West Leederville State School, Perth Modern School and the University of Western Australia, graduating in 1952 with Bachelor of Arts and Bachelor of Laws degrees. He was also president of the university's guild during the same year. The following year, Hawke won a Rhodes Scholarship to attend University College, Oxford, where he began a Bachelor of Arts course in philosophy, politics and economics (PPE). He soon found he was covering much the same ground as he had in his education at the University of Western Australia, and transferred to a Bachelor of Letters course. He wrote his thesis on wage-fixing in Australia and successfully presented it in January 1956.
In 1956, Hawke accepted a scholarship to undertake doctoral studies in the area of arbitration law in the law department at the Australian National University in Canberra.World record beer skol (scull)Hawke is well known for a "world record" allegedly achieved at Oxford University for a beer skol (scull) of a yard of ale in 11 seconds. The record is widely regarded as having been important to his career and ocker chic image. A 2023 article in the Journal of Australian Studies by C. J. Coventry concluded that Hawke's achievement was "possibly fabricated" and "cultural propaganda" designed to make Hawke appealing to unionised workers and nationalistic middle-class voters. The article contends that "its location and time remain uncertain; there are no known witnesses; the field of competition was exclusive and with no scientific accountability; the record was first published in a beer pamphlet; and Hawke's recollections were unreliable."
Australian Council of Trade Unions
, Sydney, 10 September 1969]]
Not long after Hawke began work at the ACTU, he became responsible for the presentation of its annual case for higher wages to the national wages tribunal, the Commonwealth Conciliation and Arbitration Commission. He was first appointed as an ACTU advocate in 1959. The 1958 case, under previous advocate R.L. Eggleston, had yielded only a five-shilling increase. The 1959 case found for a fifteen-shilling increase, and was regarded as a personal triumph for Hawke. He went on to attain such success and prominence in his role as an ACTU advocate that, in 1969, he was encouraged to run for the position of ACTU President, despite the fact that he had never held elected office in a trade union.
He was elected ACTU President in 1969 on a modernising platform by the narrow margin of 399 to 350, with the support of the left of the union movement, including some associated with the Communist Party of Australia. He later credited Ray Gietzelt, General Secretary of the FMWU, as the single most significant union figure in helping him achieve this outcome. Questioned after his election on his political stance, Hawke stated that "socialist is not a word I would use to describe myself", saying instead his approach to politics was pragmatic. His commitment to the cause of Jewish Refuseniks purportedly led to a planned assassination attempt on Hawke by the Popular Front for the Liberation of Palestine, and its Australian operative Munif Mohammed Abou Rish.
In 1971, Hawke along with other members of the ACTU requested that South Africa send a non-racially biased team for the rugby union tour, with the intention of unions agreeing not to serve the team in Australia. Prior to arrival, the Western Australian branch of the Transport Workers' Union, and the Barmaids' and Barmens' Union, announced that they would serve the team, which allowed the Springboks to land in Perth. The tour commenced on 26 June and riots occurred as anti-apartheid protesters disrupted games. Hawke and his family started to receive malicious mail and phone calls from people who thought that sport and politics should not mix. Hawke remained committed to the ban on apartheid teams and later that year, the South African cricket team was successfully denied and no apartheid team was to ever come to Australia again. It was this ongoing dedication to racial equality in South Africa that would later earn Hawke the respect and friendship of Nelson Mandela.
In industrial matters, Hawke continued to demonstrate a preference for, and considerable skill at, negotiation, and was generally liked and respected by employers as well as the unions he advocated for. As early as 1972, speculation began that he would seek to enter the Parliament of Australia and eventually run to become the Leader of the Australian Labor Party. But while his professional career continued successfully, his heavy drinking and womanising placed considerable strains on his family life.
In June 1973, Hawke was elected as the Federal President of the Labor Party. Two years later, when the Whitlam government was controversially dismissed by the Governor-General, Hawke showed an initial keenness to enter Parliament at the ensuing election. Harry Jenkins, the MP for Scullin, came under pressure to step down to allow Hawke to stand in his place, but he strongly resisted this push. Hawke eventually decided not to attempt to enter Parliament at that time, a decision he soon regretted. After Labor was defeated at the election, Whitlam initially offered the leadership to Hawke, although it was not within Whitlam's power to decide who would succeed him. Despite not taking on the offer, Hawke remained influential, playing a key role in averting national strike action.
During the 1977 federal election, he emerged as a strident opponent of accepting Vietnamese boat people as refugees into Australia, stating that they should be subject to normal immigration requirements and should otherwise be deported. He further stated only refugees selected off-shore should be accepted.
Hawke resigned as President of the Labor Party in August 1978. Neil Batt was elected in his place. The strain of this period took its toll on Hawke and in 1979 he suffered a physical collapse. This shock led Hawke to publicly announce his alcoholism in a television interview, and that he would make a concerted—and ultimately successful—effort to overcome it. He was helped through this period by the relationship that he had established with writer Blanche d'Alpuget, who, in 1982, published a biography of Hawke. His popularity with the public was, if anything, enhanced by this period of rehabilitation, and opinion polling suggested that he was a more popular public figure than either Labor Leader Bill Hayden or Liberal Prime Minister Malcolm Fraser.
Informer for the United States
During the period of 1973 to 1979, Hawke acted as an informant for the United States government. According to Coventry, Hawke as concurrent leader of the ACTU and ALP informed the US of details surrounding labour disputes, especially those relating to American companies and individuals, such as union disputes with Ford Motor Company and the black ban of Frank Sinatra. The major industrial action taken against Sinatra came about because Sinatra had made sexist comments against female journalists. The dispute was the subject of the 2003 film The Night We Called It a Day.
Hawke was described by US diplomats as "a bulwark against anti-American sentiment and resurgent communism during the economic turmoil of the 1970s", and often disputed with the Whitlam government over issues of foreign policy and industrial relations. US diplomats played a major role in shaping Hawke's consensus politics and economics. Biographer Troy Bramston rejects the view that Hawke's prolonged, discreet involvement with known members of the Central Intelligence Agency within the US Embassy amounted to Hawke being a CIA "spy".
Member of Parliament
Hawke's first attempt to enter Parliament came during the 1963 federal election. He stood in the seat of Corio in Geelong and managed to achieve a 3.1% swing against the national trend, although he fell short of ousting longtime Liberal incumbent Hubert Opperman. Hawke rejected several opportunities to enter Parliament throughout the 1970s, something he later wrote that he "regretted". He eventually stood for election to the House of Representatives at the 1980 election for the safe Melbourne seat of Wills, winning it comfortably. Immediately upon his election to Parliament, Hawke was appointed to the Shadow Cabinet by Labor Leader Bill Hayden as Shadow Minister for Industrial Relations.
Hayden, after having led the Labor Party to narrowly lose the 1980 election, was increasingly subject to criticism from Labor MPs over his leadership style. To quell speculation over his position, Hayden called a leadership spill on 16 July 1982, believing that if he won he would be guaranteed to lead Labor through to the next election. Hawke decided to challenge Hayden in the spill, but Hayden defeated him by five votes; the margin of victory, however, was too slim to dispel doubts that he could lead the Labor Party to victory at an election. Despite his defeat, Hawke began to agitate more seriously behind the scenes for a change in leadership, with opinion polls continuing to show that Hawke was a far more popular public figure than both Hayden and Prime Minister Malcolm Fraser. Hayden was further weakened after Labor's unexpectedly poor performance at a by-election in December 1982 for the Victorian seat of Flinders, following the resignation of the sitting member, former deputy Liberal leader Phillip Lynch. Labor needed a swing of 5.5% to win the seat and had been predicted by the media to win, but could only achieve 3%.
Labor Party power-brokers, such as Graham Richardson and Barrie Unsworth, now openly switched their allegiance from Hayden to Hawke. Less than two months after the Flinders by-election result, Hayden announced his resignation as Leader of the Labor Party on 3 February 1983. Hawke was subsequently elected as Leader unopposed on 8 February, However, he was unable to have the Governor-General confirm the election before Labor announced the change.
At the 1983 election, Hawke led Labor to a landslide victory, achieving a 24-seat swing and ending seven years of Liberal Party rule.
With the election called at the same time that Hawke became Labor leader this meant that Hawke never sat in Parliament as Leader of the Opposition having spent the entirety of his short Opposition leadership in the election campaign which he won.
Prime Minister of Australia (1983–1991)
Leadership style
<!-- and Bob Hawke in traditional Chinese attire in 1983]] -->
After Labor's landslide victory, Hawke was sworn in as the Prime Minister by the Governor-General Ninian Stephen on 11 March 1983. The style of the Hawke government was deliberately distinct from the Whitlam government, the Labor government that preceded it. Rather than immediately initiating multiple extensive reform programs as Whitlam had, Hawke announced that Malcolm Fraser's pre-election concealment of the budget deficit meant that many of Labor's election commitments would have to be deferred. As part of his internal reforms package, Hawke divided the government into two tiers, with only the most senior ministers sitting in the Cabinet of Australia. The Labor caucus was still given the authority to determine who would make up the Ministry, but this move gave Hawke unprecedented powers to empower individual ministers.
After Australia won the America's Cup in 1983 Hawke said "any boss who sacks anyone for not turning up today is a bum", effectively declaring an impromptu national public holiday.
, Premier of South Australia following the 1983 Ash Wednesday bushfires]]
In particular, the political partnership that developed between Hawke and his Treasurer, Paul Keating, proved to be essential to Labor's success in government, with multiple Labor figures in years since citing the partnership as the party's greatest ever. The two men proved a study in contrasts: Hawke was a Rhodes Scholar; Keating left high school early. Hawke's enthusiasms were cigars, betting and most forms of sport; Keating preferred classical architecture, Mahler symphonies and collecting British Regency and French Empire antiques. Despite not knowing one another before Hawke assumed the leadership in 1983, the two formed a personal as well as political relationship which enabled the Government to pursue a significant number of reforms, although there were occasional points of tension between the two.
The Labor Caucus under Hawke also developed a more formalised system of parliamentary factions, which significantly altered the dynamics of caucus operations. Although the Fraser government had played a part in the process of financial deregulation by commissioning the 1981 Campbell Report, opposition from Fraser himself had stalled this process. Shortly after its election in 1983, the Hawke government took the opportunity to implement a comprehensive program of economic reform, in the process "transform(ing) economics and politics in Australia". Among other reforms, the Hawke government floated the Australian dollar, repealed rules that prohibited foreign-owned banks to operate in Australia, dismantled the protectionist tariff system, privatised several state sector industries, ended the subsidisation of loss-making industries, and sold off part of the state-owned Commonwealth Bank.
The taxation system was also significantly reformed, with income tax rates reduced and the introduction of a fringe benefits tax and a capital gains tax; the latter two reforms were strongly opposed by the Liberal Party at the time, but were never reversed by them when they eventually returned to office in 1996. Partially offsetting these imposts upon the business community—the "main loser" from the 1985 Tax Summit according to Paul Kelly—was the introduction of full dividend imputation, a reform insisted upon by Keating. Funding for schools was also considerably increased as part of this package, while financial assistance was provided for students to enable them to stay at school longer; the number of Australian children completing school rose from 3 in 10 at the beginning of the Hawke government to 7 in 10 by its conclusion in 1991. Considerable progress was also made in directing assistance "to the most disadvantaged recipients over the whole range of welfare benefits."
Social and environmental policy
Although criticisms were leveled against the Hawke government that it did not achieve all it said it would do on social policy, it nevertheless enacted a series of reforms which remain in place to the present day. From 1983 to 1989, the Government oversaw the permanent establishment of universal health care in Australia with the creation of Medicare, doubled the number of subsidised childcare places, began the introduction of occupational superannuation, oversaw a significant increase in school retention rates, created subsidised homecare services, oversaw the elimination of poverty traps in the welfare system, increased the real value of the old-age pension, reintroduced the six-monthly indexation of single-person unemployment benefits, and established a wide-ranging programme for paid family support, known as the Family Income Supplement.
A number of other new social security benefits were introduced under the Hawke-Keating Government. In 1984, for instance, a remote area allowance was introduced for pensioners and beneficiaries residing in special areas of Tax Zone A, and in 1985 a special addition to family allowances was made payable (as noted by one study) “to certain families with multiple births (three children or more) until the children reach six years of age.” The following year, rent assistance was extended to unemployment beneficiaries, together with a young homeless allowance for sickness and unemployment beneficiaries under the age of 18 who were homeless and didn’t have parental or custodial support. However, the payment of family allowances for student children reaching the age of 18 was discontinued except in the case of certain families on low incomes.
During the 1980s, the proportion of total government outlays allocated to families, the sick, single parents, widows, the handicapped, and veterans was significantly higher than under the previous Fraser and Whitlam governments. In 1989, Hawke oversaw the gradual re-introduction of some tuition fees for university study, setting up the Higher Education Contributions Scheme (HECS). Under the original HECS, a $1,800 fee was charged to all university students, and the Commonwealth paid the balance. A student could defer payment of this HECS amount and repay the debt through the tax system, when the student's income exceeds a threshold level. As part of the reforms, Colleges of Advanced Education entered the university sector by various means. by doing so, university places were able to be expanded. Further notable policy decisions taken during the Government's time in office included the public health campaign regarding HIV/AIDS, and Indigenous land rights reform, with an investigation of the idea of a treaty between Aborigines and the Government being launched, although the latter would be overtaken by events, notably the Mabo court decision.
The Hawke government also drew attention for a series of notable environmental decisions, particularly in its second and third terms. In 1983, Hawke personally vetoed the construction of the Franklin Dam in Tasmania, responding to a groundswell of protest around the issue. Hawke also secured the nomination of the Wet Tropics of Queensland as a UNESCO World Heritage Site in 1987, preventing the forests there from being logged. Hawke would later appoint Graham Richardson as Environment Minister, tasking him with winning the second-preference support from environmental parties, something which Richardson later claimed was the major factor in the government's narrow re-election at the 1990 election. In the Government's fourth term, Hawke personally led the Australian delegation to secure changes to the Protocol on Environmental Protection to the Antarctic Treaty, ultimately winning a guarantee that drilling for minerals within Antarctica would be totally prohibited until 2048 at the earliest. Hawke later claimed that the Antarctic drilling ban was his "proudest achievement".
Industrial relations policy
As a former ACTU President, Hawke was well-placed to engage in reform of the industrial relations system in Australia, taking a lead on this policy area as in few others. Working closely with ministerial colleagues and the ACTU Secretary, Bill Kelty, Hawke negotiated with trade unions to establish the Prices and Incomes Accord in 1983, an agreement whereby unions agreed to restrict their demands for wage increases, and in turn the Government guaranteed to both minimise inflation and promote an increased social wage, including by establishing new social programmes such as Medicare.
Inflation had been a significant issue for the previous decade prior to the election of the Hawke government, regularly running into double-digits. The process of the Accord, by which the Government and trade unions would arbitrate and agree upon wage increases in many sectors, led to a decrease in both inflation and unemployment through to 1990. Criticisms of the Accord would come from both the right and the left of politics. Left-wing critics claimed that it kept real wages stagnant, and that the Accord was a policy of class collaboration and corporatism. By contrast, right-wing critics claimed that the Accord reduced the flexibility of the wages system. Supporters of the Accord, however, pointed to the improvements in the social security system that occurred, including the introduction of rental assistance for social security recipients, the creation of labour market schemes such as NewStart, and the introduction of the Family Income Supplement. In 1986, the Hawke government passed a bill to de-register the Builders Labourers Federation federally due to the union not following the Accord agreements.
Despite a percentage fall in real money wages from 1983 to 1991, the social wage of Australian workers was argued by the Government to have improved drastically as a result of these reforms, and the ensuing decline in inflation. The Accord was revisited six further times during the Hawke government, each time in response to new economic developments. The seventh and final revisiting would ultimately lead to the establishment of the enterprise bargaining system, although this would be finalised shortly after Hawke left office in 1991.
Foreign policy
in Moscow, 1987]]
Arguably the most significant foreign policy achievement of the Government took place in 1989, after Hawke proposed a south-east Asian region-wide forum for leaders and economic ministers to discuss issues of common concern. After winning the support of key countries in the region, this led to the creation of the Asia-Pacific Economic Cooperation (APEC). The first APEC meeting duly took place in Canberra in November 1989; the economic ministers of Australia, Brunei, Canada, Indonesia, Japan, South Korea, Malaysia, New Zealand, Philippines, Singapore, Thailand and the United States all attended. APEC would subsequently grow to become one of the most pre-eminent high-level international forums in the world, particularly after the later inclusions of China and Russia, and the Keating government's later establishment of the APEC Leaders' Forum. Hawke also took a major public stand after the 1989 Tiananmen Square protests and massacre; despite having spent years trying to get closer relations with China, Hawke gave a tearful address on national television describing the massacre in graphic detail, and unilaterally offered asylum to over 42,000 Chinese students who were living in Australia at the time, many of whom had publicly supported the Tiananmen protesters. Hawke did so without even consulting his Cabinet, stating later that he felt he simply had to act.
The Hawke government pursued a close relationship with the United States, assisted by Hawke's close friendship with US Secretary of State George Shultz; this led to a degree of controversy when the Government supported the US's plans to test ballistic missiles off the coast of Tasmania in 1985, as well as seeking to overturn Australia's long-standing ban on uranium exports. Although the US ultimately withdrew the plans to test the missiles, the furore led to a fall in Hawke's approval ratings. Shortly after the 1990 election, Hawke would lead Australia into its first overseas military campaign since the Vietnam War, forming a close alliance with US President George H. W. Bush to join the coalition in the Gulf War. The Royal Australian Navy contributed several destroyers and frigates to the war effort, which successfully concluded in February 1991, with the expulsion of Iraqi forces from Kuwait. The success of the campaign, and the lack of any Australian casualties, led to a brief increase in the popularity of the Government.
Through his role on the Commonwealth Heads of Government Meeting, Hawke played a leading role in ensuring the Commonwealth initiated an international boycott on foreign investment into South Africa, building on work undertaken by his predecessor Malcolm Fraser, and in the process clashing publicly with Prime Minister of the United Kingdom Margaret Thatcher, who initially favoured a more cautious approach. The resulting boycott, led by the Commonwealth, was widely credited with helping bring about the collapse of apartheid, and resulted in a high-profile visit by Nelson Mandela in October 1990, months after the latter's release from a 27-year stint in prison. During the visit, Mandela publicly thanked the Hawke government for the role it played in the boycott.Election wins and leadership challenges
]]
Hawke benefited greatly from the disarray into which the Liberal Party fell after the resignation of Fraser following the 1983 election. The Liberals were torn between supporters of the more conservative John Howard and the more liberal Andrew Peacock, with the pair frequently contesting the leadership. Hawke and Keating were also able to use the concealment of the size of the budget deficit by Fraser before the 1983 election to great effect, damaging the Liberal Party's economic credibility as a result.
However, Hawke's time as Prime Minister also saw friction develop between himself and the grassroots of the Labor Party, many of whom were unhappy at what they viewed as Hawke's iconoclasm and willingness to cooperate with business interests. Hawke regularly and publicly expressed his willingness to cull Labor's "sacred cows". The Labor Left faction, as well as prominent Labor backbencher Barry Jones, offered repeated criticisms of a number of government decisions. Hawke was also subject to challenges from some former colleagues in the trade union movement over his "confrontationalist style" in siding with the airline companies in the 1989 Australian pilots' strike.
Nevertheless, Hawke was able to comfortably maintain a lead as preferred prime minister in the vast majority of opinion polls carried out throughout his time in office. He recorded the highest popularity rating ever measured by an Australian opinion poll, reaching 75% approval in 1984. After leading Labor to a comfortable victory in the snap 1984 election, called to bring the mandate of the House of Representatives back in line with the Senate, Hawke was able to secure an unprecedented third consecutive term for Labor with a comfortable victory in the double dissolution election of 1987. Hawke was subsequently able to lead the nation in the bicentennial celebrations of 1988, culminating with him welcoming Queen Elizabeth II to open the newly constructed Parliament House.
The late-1980s recession, and the accompanying high interest rates, saw the Government fall in opinion polls, with many doubting that Hawke could win a fourth election. Keating, who had long understood that he would eventually succeed Hawke as prime minister, began to plan a leadership change; at the end of 1988, Keating put pressure on Hawke to retire in the new year. Hawke rejected this suggestion but reached a secret agreement with Keating, the so-called "Kirribilli Agreement", stating that he would step down in Keating's favour at some point after the 1990 election. Hawke subsequently won that election, in the process leading Labor to a record fourth consecutive electoral victory, albeit by a slim margin. Hawke appointed Keating as deputy prime minister to replace the retiring Lionel Bowen.
By the end of 1990, frustrated by the lack of any indication from Hawke as to when he might retire, Keating made a provocative speech to the Federal Parliamentary Press Gallery. Hawke considered the speech disloyal, and told Keating he would renege on the Kirribilli Agreement as a result. After attempting to force a resolution privately, Keating finally resigned from the Government in June 1991 to challenge Hawke for the leadership. His resignation came soon after Hawke vetoed in Cabinet a proposal backed by Keating and other ministers for mining to take place at Coronation Hill in Kakadu National Park. Hawke won the leadership spill, and in a press conference after the result, Keating declared that he had fired his "one shot" on the leadership. Hawke appointed John Kerin to replace Keating as Treasurer.
Despite his victory in the June spill, Hawke quickly began to be regarded by many of his colleagues as a "wounded" leader; he had now lost his long-term political partner, his ratings in opinion polls were beginning to fall significantly, and after nearly nine years as Prime Minister, there was speculation that it would soon be time for a new leader. Hawke's leadership was ultimately irrevocably damaged at the end of 1991; after Liberal Leader John Hewson released 'Fightback!', a detailed proposal for sweeping economic change, including the introduction of a goods and services tax, Hawke was forced to sack Kerin as Treasurer after the latter made a public gaffe attempting to attack the policy. Keating duly challenged for the leadership a second time on 19 December, arguing that he would better placed to defeat Hewson; this time, Keating succeeded, narrowly defeating Hawke by 56 votes to 51.
In a speech to the House of Representatives following the vote, Hawke declared that his nine years as prime minister had left Australia a better and wealthier country, and he was given a standing ovation by those present. He subsequently tendered his resignation to the Governor-General and pledged support to his successor. Hawke briefly returned to the backbench, before resigning from Parliament on 20 February 1992, sparking a by-election which was won by the independent candidate Phil Cleary from among a record field of 22 candidates. Keating would go on to lead Labor to a fifth victory at the 1993 election, although he was defeated by the Liberal Party at the 1996 election.
Hawke wrote that he had very few regrets over his time in office, although stated he wished he had been able to advance the cause of Indigenous land rights further. His bitterness towards Keating over the leadership challenges surfaced in his earlier memoirs, although by the 2000s Hawke stated he and Keating had buried their differences, and that they regularly dined together and considered each other friends. The publication of the book Hawke: The Prime Minister, by Hawke's second wife, Blanche d'Alpuget, in 2010, reignited conflict between the two, with Keating accusing Hawke and d'Alpuget of spreading falsehoods about his role in the Hawke government. Despite this, the two campaigned together for Labor several times, including at the 2019 election, where they released their first joint article for nearly three decades; Craig Emerson, who worked for both men, said they had reconciled in later years after Hawke grew ill.
Retirement and later life
for the Apology to the Stolen Generations in 2008]]
After leaving Parliament, Hawke entered the business world, taking on a number of directorships and consultancy positions which enabled him to achieve considerable financial success. He avoided public involvement with the Labor Party during Keating's tenure as prime minister, not wanting to be seen as attempting to overshadow his successor. After Keating's defeat and the election of the Howard government at the 1996 election, he returned to public campaigning with Labor and regularly appearing at election launches. Despite his personal affection for Queen Elizabeth II, boasting that he had been her "favourite Prime Minister", Hawke was an enthusiastic republican and joined the campaign for a Yes vote in the 1999 republic referendum.
In 2002, Hawke was named to South Australia's Economic Development Board during the Rann government. In the lead up to the 2007 election, Hawke made a considerable personal effort to support Kevin Rudd, making speeches at a large number of campaign office openings across Australia, and appearing in multiple campaign advertisements. As well as campaigning against WorkChoices, Hawke also attacked John Howard's record as Treasurer, stating "it was the judgement of every economist and international financial institution that it was the restructuring reforms undertaken by my government, with the full cooperation of the trade union movement, which created the strength of the Australian economy today". In February 2008, after Rudd's victory, Hawke joined former Prime Ministers Gough Whitlam, Malcolm Fraser and Paul Keating in Parliament House to witness the long anticipated apology to the Stolen Generations.
In 2009, Hawke helped establish the Centre for Muslim and Non-Muslim Understanding at the University of South Australia. Interfaith dialogue was an important issue for Hawke, who told The Adelaide Review that he was "convinced that one of the great potential dangers confronting the world is the lack of understanding in regard to the Muslim world. Fanatics have misrepresented what Islam is. They give a false impression of the essential nature of Islam."
In 2016, after taking part in Andrew Denton's Better Off Dead podcast, Hawke added his voice to calls for voluntary euthanasia to be legalised. Hawke labelled as 'absurd' the lack of political will to fix the problem. He revealed that he had such an arrangement with his wife Blanche should such a devastating medical situation occur. He also publicly advocated for nuclear power and the importation of international spent nuclear fuel to Australia for storage and disposal, stating that this could lead to considerable economic benefits for Australia.
In late December 2018, Hawke revealed that he was in "terrible health". While predicting a Labor win in the upcoming 2019 federal election, Hawke said he "may not witness the party's success". In May 2019, the month of the election, he issued a joint statement with Paul Keating endorsing Labor's economic plan and condemning the Liberal Party for "completely [giving] up the economic reform agenda". They stated that "Shorten's Labor is the only party of government focused on the need to modernise the economy to deal with the major challenge of our time: human induced climate change". It was the first joint press statement released by the two since 1991.
In March 2022, Troy Bramston, a journalist for The Australian and a political historian, wrote an unauthorised biography of Hawke titled Bob Hawke: Demons and Destiny. Hawke gave Bramston full access to his previously unavailable personal papers and granted a series of interviews for the book. Bramston was the last person to interview Hawke before his death. The book, drawing on extensive Australian and international archives, and interviews with more than 100 people, is regarded as "definitive" and was shortlisted for the Australian Political Book of the Year Award.
On 16 May 2019, two days before the election, Hawke died at his home in Northbridge at the age of 89, following a short illness. His family held a private cremation on 27 May at Macquarie Park Cemetery and Crematorium where he was subsequently interred. A state memorial was held at the Sydney Opera House on 14 June; speakers included Craig Emerson as master of ceremonies and Kim Beazley reading the eulogy, as well as Paul Keating, Julia Gillard, Bill Kelty, Ross Garnaut, and incumbent Prime Minister Scott Morrison and Opposition Leader Anthony Albanese.
Personal life
, in 2006]]
Hawke married Hazel Masterson in 1956 at Perth Trinity Church. They had three children: Susan (born 1957), Stephen (born 1959) and Roslyn (born 1961). Their fourth child, Robert Jr, died in early infancy in 1963. Hawke was named Victorian Father of the Year in 1971, an honour which his wife disputed due to his heavy drinking and womanising. The couple divorced in 1994, after he left her for the writer Blanche d'Alpuget, and the two lived together in Northbridge, a suburb on the North Shore of Sydney.
Hawke was a supporter of National Rugby League club the Canberra Raiders.
Alcoholism and abstinence
Throughout his life before politics, Hawke was a heavy drinker. There is evidence that Hawke did drink alcohol while in office, provided by then Vice-President of the United States of America, George H. W. Bush, who later recalled shared drunken behaviour during Hawke's 1983 first official visit to the United States. By the time he entered politics he was a self-described agnostic. Hawke told Andrew Denton in 2008 that his father's Christian faith had continued to influence his outlook, saying "My father said if you believe in the fatherhood of God you must necessarily believe in the brotherhood of man, it follows necessarily, and even though I left the church and was not religious, that truth remained with me." Legacy
A biographical television film, Hawke, premiered on the Ten Network in Australia on 18 July 2010, with Richard Roxburgh playing the title character. Rachael Blake and Felix Williamson portrayed Hazel Hawke and Paul Keating, respectively. Roxburgh reprised his role as Hawke in the 2020 episode "Terra Nullius" of the Netflix series The Crown.
The Bob Hawke Gallery in Bordertown, which contains memorabilia from his life, was opened by Hawke in 2002. Hawke House, the house in Bordertown where Hawke spent his early childhood, was purchased by the Australian Government in 2021 and opened as an accommodation and function space in May 2024. A bronze bust of Hawke is located at the town's civic centre.
The Australian Government pledged $5 million in July 2019 to establish a new annual scholarship—the Bob Hawke John Monash Scholarship—through the General Sir John Monash Foundation.
In March 2020, the Australian Electoral Commission announced that it would create a new Australian electoral division in the House of Representatives named in honour of Hawke. The Division of Hawke was first contested at the 2022 federal election, and is located in the state of Victoria, near the seat of Wills, which Hawke represented from 1980 to 1992.Honours
Orders
* 1979: Companion of the Order of Australia (AC), "For services to trade unionism and industrial relations"
Foreign honours
* 1989: Knight Grand Cordon of the Order of the White Elephant
* 1999: Freedom of the City of London
* 2008 Grand Companion of the Order of Logohu
* 2012 Grand Cordon of the Order of the Rising Sun
* August 2009: Australian Labor Party Life membership, Bob Hawke became only the third person to be awarded life membership of the Australian Labor Party, after Gough and Margaret Whitlam. During the conferring, Prime Minister Kevin Rudd referred to Hawke as "the heart and soul of the Labor Party".
* March 2014: University of Western Australia Student Guild Life membership
Fellowships
* University College, Oxford
Honorary degrees
* Nanjing University, Honorary doctorate
* University of Oxford, Honorary Doctor of Civil Law
* Hebrew University of Jerusalem, Honorary doctorate
* University of New South Wales, Honorary doctorateOther* University of South Australia, the Hawke Centre and the Bob Hawke Prime Ministerial LibrarySee also
*Hawke–Keating government
*First Hawke Ministry
*Second Hawke Ministry
*Third Hawke Ministry
*Fourth Hawke Ministry
Footnotes
References
Bibliography
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External links
*[https://web.archive.org/web/20111027034345/http://www.time.com/time/magazine/article/0,9171,951966-2,00.html "Hawke Swoops into Power"] – Time, 14 March 1983
*[https://www.naa.gov.au/explore-collection/australias-prime-ministers/robert-hawke Robert Hawke] – Australia's Prime Ministers / National Archives of Australia
*[https://web.archive.org/web/20080518090728/http://www.hawkecentre.unisa.edu.au/ Bob Hawke Prime Ministerial Centre]
*
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Category:Australian agnostics
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Category:Australian National University alumni
Category:Australian people of Cornish descent
Category:Australian republicans
Category:Australian Rhodes Scholars
Category:Australian social democrats
Category:Australian trade unionists
Category:Australian Zionists
Category:Companions of the Order of Australia
Category:Former Congregationalists
Category:Grand Companions of the Order of Logohu
Category:Leaders of the Australian Labor Party
Category:Members of the Australian House of Representatives
Category:Members of the Australian House of Representatives for Wills
Category:Members of the Cabinet of Australia
Category:People educated at Perth Modern School
Category:People from South Australia
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Category:Prime ministers of Australia
Category:20th-century prime ministers of Australia
Category:Trade unionists from Melbourne
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Category:Australian MPs 1990–1993 | https://en.wikipedia.org/wiki/Bob_Hawke | 2025-04-05T18:26:40.816898 |
4060 | Baldr | .]]
Baldr (Old Norse also Balder, Baldur) is a god in Germanic mythology. In Norse mythology, he is a son of the god Odin and the goddess Frigg, and has numerous brothers, such as Thor and Váli. In wider Germanic mythology, the god was known in Old English as , and in Old High German as , all ultimately stemming from the Proto-Germanic theonym ('hero' or 'prince').
During the 12th century, Danish accounts by Saxo Grammaticus and other Danish Latin chroniclers recorded a euhemerized account of his story. Compiled in Iceland during the 13th century, but based on older Old Norse poetry, the Poetic Edda and the Prose Edda contain numerous references to the death of Baldr as both a great tragedy to the Æsir and a harbinger of Ragnarök.
According to Gylfaginning, a book of Snorri Sturluson's Prose Edda, Baldr's wife is Nanna and their son is Forseti. Baldr had the greatest ship ever built, Hringhorni, and there is no place more beautiful than his hall, Breidablik.
Name
The Old Norse theonym Baldr ('brave, defiant'; also 'lord, prince') and its various Germanic cognates – including Old English Bældæg and Old High German Balder (or Palter) – probably stems from Proto-Germanic *Balðraz ('Hero, Prince'; cf. Old Norse mann-baldr 'great man', Old English bealdor 'prince, hero'), itself a derivative of *balþaz, meaning 'brave' (cf. Old Norse ballr 'hard, stubborn', Gothic balþa* 'bold, frank', Old English beald 'bold, brave, confident', Old Saxon bald 'valiant, bold', Old High German bald 'brave, courageous').
This etymology was originally proposed by Jacob Grimm (1835), who also speculated on a comparison with the Lithuanian báltas ('white', also the name of a light-god) based on the semantic development from 'white' to 'shining' then 'strong'. According to linguist Vladimir Orel, this could be linguistically tenable. Philologist Rudolf Simek also argues that the Old English Bældæg should be interpreted as meaning 'shining day', from a Proto-Germanic root *bēl- (cf. Old English bæl, Old Norse bál 'fire') attached to dæg ('day').
Old Norse also shows the usage of the word as an honorific in a few cases, as in baldur î brynju (Sæm. 272b) and herbaldr (Sæm. 218b), in general epithets of heroes. In continental Saxon and Anglo-Saxon tradition, the son of Woden is called not Bealdor but Baldag (Saxon) and Bældæg, Beldeg (Anglo-Saxon), which shows association with "day", possibly with Day personified as a deity. This, as Grimm points out, would agree with the meaning "shining one, white one, a god" derived from the meaning of Baltic baltas, further adducing Slavic Belobog and German Berhta.
Attestations
Merseburg Incantation
One of the two Merseburg Incantations names Balder (in the genitive singular Balderes), but also mentions a figure named Phol, considered to be a byname for Baldr (as in Scandinavian Falr, Fjalarr; (in Saxo) Balderus : Fjallerus). The incantation relates of Phol ende Wotan riding to the woods, where the foot of Baldr's foal is sprained. Sinthgunt (the sister of the sun), Frigg and Odin sing to the foot in order for it to heal. The identification with Balder is not conclusive. Modern scholarship suggests that the god Freyr might be meant.Poetic Edda
.]]
Unlike the Prose Edda, in the Poetic Edda the tale of Baldr's death is referred to rather than recounted at length. Baldr is mentioned in Völuspá, in Lokasenna, and is the subject of the Eddic poem ''Baldr's Dreams''.
Among the visions which the Völva sees and describes in Völuspá is Baldr's death. In stanza 32, the Völva says she saw the fate of Baldr "the bleeding god":
the bleeding god,
The son of Othin, his destiny set:
Famous and fair in the lofty fields,
Full grown in strength the mistletoe stood.}}
In the next two stanzas, the Völva refers to Baldr's killing, describes the birth of Váli for the slaying of Höðr and the weeping of Frigg:
so slender and fair
Came a harmful shaft that Hoth should hurl;
But the brother of Baldr was born ere long,
And one night old fought Othin's son.
Stanza 34:
His hands he washed not, his hair he combed not,
Till he bore to the bale-blaze Baldr's foe.
But in Fensalir did Frigg weep sore
For Valhall's need: would you know yet more?}}
In the next stanza, Loki responds to Frigg, and says that he is the reason Baldr "will never ride home again":
Apart from this description, Baldr is known primarily for the story of his death, which is seen as the first in a chain of events that will ultimately lead to the destruction of the gods at Ragnarök.
Baldr had a dream of his own death and his mother, Frigg, had the same dream. Since dreams were usually prophetic, this depressed him, and so Frigg made every object on earth vow never to hurt Baldr. All objects made this vow, save for the mistletoe—a detail which has traditionally been explained with the idea that it was too unimportant and nonthreatening to bother asking it to make the vow, but which Merrill Kaplan has instead argued echoes the fact that young people were not eligible to swear legal oaths, which could make them a threat later in life.
.]]
When Loki, the mischief-maker, heard of this, he made a magical spear from this plant (in some later versions, an arrow). He hurried to the place where the gods were indulging in their new pastime of hurling objects at Baldr, which would bounce off without harming him. Loki gave the spear to Baldr's brother, the blind god Höðr, who then inadvertently killed his brother with it (other versions suggest that Loki guided the arrow himself). For this act, Odin and the ásynja Rindr gave birth to Váli, who grew to adulthood within a day and slew Höðr.
Baldr was ceremonially burnt upon his ship Hringhorni, the largest of all ships. On the pyre he was given the magical ring Draupnir. At first the gods were not able to push the ship out onto sea, and so they sent for Hyrrokin, a giantess, who came riding on a wolf and gave the ship such a push that fire flashed from the rollers and all the earth shook.
As he was carried to the ship, Odin whispered something in his ear. The import of this speech was held to be unknowable, and the question of what was said was thus used as an unanswerable riddle by Odin in other sources, namely against the giant Vafthrudnir in the Eddic poem Vafthrudnismal and in the riddles of Gestumblindi in Hervarar saga.
Upon seeing the corpse being carried to the ship, Nanna, his wife, died of grief. She was then placed on the funeral fire (perhaps a toned-down instance of Sati, also attested in the Arab traveller Ibn Fadlan's account of a funeral among the Rus'), after which it was set on fire. Baldr's horse with all its trappings was also laid on the pyre.
As the pyre was set on fire, Thor blessed it with his hammer Mjǫllnir. As he did a small dwarf named Litr came running before his feet. Thor then kicked him into the pyre.
Upon Frigg's entreaties, delivered through the messenger Hermod, Hel promised to release Baldr from the underworld if all objects alive and dead would weep for him. All did, except a giantess, Þökk (often presumed to be the god Loki in disguise), who refused to mourn the slain god. Thus Baldr had to remain in the underworld, not to emerge until after Ragnarök, when he and his brother Höðr would be reconciled and rule the new earth together with Thor's sons.
Besides these descriptions of Baldr, the Prose Edda also explicitly links him to the Anglo-Saxon Beldeg in its prologue.
Gesta Danorum
.]]
Writing during the end of the 12th century, the Danish historian Saxo Grammaticus tells the story of Baldr (recorded as Balderus) in a form that professes to be historical. According to him, Balderus and Høtherus were rival suitors for the hand of Nanna, daughter of Gewar, King of Norway. Balderus was a demigod and common steel could not wound his sacred body. The two rivals encountered each other in a terrific battle. Though Odin and Thor and the other gods fought for Balderus, he was defeated and fled away, and Høtherus married the princess.
Nevertheless, Balderus took heart of grace and again met Høtherus in a stricken field. But he fared even worse than before. Høtherus dealt him a deadly wound with a magic sword, named Mistletoe, which he had received from Mimir, the satyr of the woods; after lingering three days in pain Balderus died of his injury and was buried with royal honours in a barrow.Utrecht InscriptionA Latin votive inscription from Utrecht, from the 3rd or 4th century C.E., has been theorized as containing the dative form Baldruo, pointing to a Latin nominative singular *Baldruus, which some have identified with the Norse/Germanic god, although both the reading and this interpretation have been questioned.
Anglo-Saxon Chronicle
In the Anglo-Saxon Chronicle Baldr is named as the ancestor of the monarchy of Kent, Bernicia, Deira, and Wessex through his supposed son Brond.Toponyms
There are a few old place names in Scandinavia that contain the name Baldr. The most certain and notable one is the (former) parish name Balleshol in Hedmark county, Norway: "a Balldrshole" 1356 (where the last element is hóll m "mound; small hill"). Others may be (in Norse forms) Baldrsberg in Vestfold county, Baldrsheimr in Hordaland county Baldrsnes in Sør-Trøndelag county—and (very uncertain) the Balsfjorden fjord and Balsfjord Municipality in Troms county.
In Copenhagen, there is also a Baldersgade, or "Balder's Street". A street in downtown Reykjavík is called Baldursgata (Baldur's Street).
In Sweden there is a Baldersgatan (Balder's Street) in Stockholm. There is also Baldersnäs (Balder's isthmus), Baldersvik (Balder's bay), Balders udde (Balder's headland) and Baldersberg (Balder's mountain) at various places.
See also
* List of Germanic deities
* Lemminkäinen
References
Bibliography
*
*
*
*
Further reading
* Anatoly Liberman, [http://userpage.fu-berlin.de/~alvismal/11baldr.pdf "Some Controversial Aspects of the Myth of Baldr,"] Alvíssmál 11 (2004): 17–54.
* John Lindow, Murder and Vengeance Among the Gods: Baldr in Scandinavian Mythology. Suomalainen Tiedeakatemia (1997), .
* Jacob Grimm, Deutsche Mythologie (1835), chapter 11 "Paltar".
External links
* [https://myndir.uvic.ca/BalD01.html MyNDIR (My Norse Digital Image Repository)] Illustrations of Baldr from manuscripts and early print books.
Category:Æsir
Category:Germanic gods
Category:Justice gods
Category:Light gods
Category:Sons of Odin
Category:Killed deities
Category:Norse gods
Category:Life-death-rebirth gods | https://en.wikipedia.org/wiki/Baldr | 2025-04-05T18:26:40.830696 |
4061 | Breidablik | <noinclude>
Breiðablik}}
Breiðablik (sometimes anglicised as Breithablik or Breidablik) is the home of Baldr in Nordic mythology.
Meaning
The word has been variously translated as 'broad sheen', 'Broad gleam', 'Broad-gleaming' or 'the far-shining one',
Attestations
Grímismál
The Eddic poem Grímnismál describes Breiðablik as the fair home of Baldr:
{| width="50%"
! width"25%" | Old Norse text
! width"25%" | Bellows translation
|-
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:
:
:
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:The seventh is Breithablik; Baldr has there
:For himself a dwelling set,
:In the land I know that lies so fair,
:And from evil fate is free.
|}
Gylfaginning
In Snorri Sturluson's Gylfaginning, Breiðablik is described in a list of places in heaven, identified by some scholars as Asgard:
{| width="100%"
! width"50%" | Old Norse text
! width"50%" | Brodeur translation
|-
|
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Then there is also in that place the abode called Breidablik, and there is not in heaven a fairer dwelling.
|}
Later in the work, when Snorri describes Baldr, he gives another description, citing Grímnismál, though he does not name the poem:
{| width="100%"
! width"50%" | Old Norse text
! width"50%" | Brodeur translation
|-
|
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:He [Baldr] dwells in the place called Breidablik, which is in heaven; in that place may nothing unclean be...
|}
Interpretation and discussion
The name of Breiðablik has been noted to link with Baldr's attributes of light and beauty.
Similarities have been drawn between the description of Breiðablik in Grímnismál and Heorot in Beowulf, which are both free of 'baleful runes' ( and respectively). In Beowulf, the lack of refers to the absence of crimes being committed, and therefore both halls have been proposed to be sanctuaries.In popular culture* Breidablik is a sacred weapon in Fire Emblem Heroes that the Summoner uses to summon Heroes coming from different Fire Emblem games.
* In the PlayStation game Xenogears, Bledavik is the name of the capital city of the desert kingdom of Aveh on the Ignas continent.See also
* Álfheimr, the home of Freyr
* Nóatún, the home of Njörðr
* Þrúðvangr, the home of Thor
Citations
Bibliography
Primary
*
*
*
* | title Grímnismál (Old Norse) |urlhttps://heimskringla.no/wiki/Gr%C3%ADmnism%C3%A1l |websiteheimskringla.com|access-date=22 October 2022}}
* | titleGylfaginning (Old Norse) |urlhttps://heimskringla.no/wiki/Gylfaginning |websiteheimskringla.no |access-date=4 October 2022}}
Secondary
*
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Category:Baldr
Category:Locations in Norse mythology | https://en.wikipedia.org/wiki/Breidablik | 2025-04-05T18:26:40.835897 |
4062 | Bilskirnir | Bilskirnir (Old Norse "lightning-crack") is the hall of the god Thor in Norse mythology. Here he lives with his wife Sif and their children. According to Grímnismál, the hall is the greatest of buildings and contains 540 rooms, located in Asgard, as are all the dwellings of the gods, in the kingdom of Þrúðheimr (or Þrúðvangar according to Gylfaginning and Ynglinga saga).
Modern influence
The hall inspired the name of an Asgard starship commanded by Supreme Commander Thor, in the television series Stargate SG-1 named Beliskner.
There is a NS / pagan black metal band from Hesse, Germany named Bilskirnir.
Notes
References
Orchard, Andy (1997). Dictionary of Norse Myth and Legend. Cassell.
Category:Locations in Norse mythology
Category:Thor | https://en.wikipedia.org/wiki/Bilskirnir | 2025-04-05T18:26:40.837120 |
4063 | Brísingamen | (1846).]]
In Norse mythology, Brísingamen (or Brísinga men) is the torc or necklace of the goddess Freyja, of which little else is known for certain.EtymologyThe name is an Old Norse compound brísinga-men whose second element is men "(ornamental) neck-ring (of precious metal), torc". also remarked that there was " (also the Brísingamen, but this was only around the neck)" besides the "jewels" on [Thor's] breast (supposedly necklace, which would have been called (cf. ) though not explicitly stated as such.}}
The etymology of the first element is uncertain. It has been derived from Old Norse brísingr, a poetic term for "fire" or "amber" mentioned in the anonymous versified word-lists (þulur) appended to many manuscripts of the Prose Edda, making Brísingamen "gleaming torc", "sunny torc", or the like. However, Brísingr can also be an ethnonym, in which case Brísinga men is "torc of the Brísings"; the Old English parallel in Beowulf supports this derivation, though who the Brísings (Old Norse Brísingar) may have been remains unknown.
Attestations
Beowulf
Brísingamen is referred to in the Anglo-Saxon epic Beowulf as Brosinga mene. The brief mention in Beowulf is as follows (trans. by Howell Chickering, 1977):
The Beowulf poet is clearly referring to the legends about Theoderic the Great. The Þiðrekssaga tells that the warrior Heime (Háma in Old English) takes sides against Ermanaric ("Eormanric"), king of the Goths, and has to flee his kingdom after robbing him; later in life, Hama enters a monastery and gives them all his stolen treasure. However, this saga makes no mention of the great necklace.
Poetic Edda
In the poem Þrymskviða of the Poetic Edda, Þrymr, the king of the jǫtnar, steals Thor's hammer, Mjölnir. Freyja lends Loki her falcon cloak to search for it; but upon returning, Loki tells Freyja that Þrymr has hidden the hammer and demanded to marry her in return. Freyja is so wrathful that all the Æsir’s halls beneath her are shaken and the necklace Brísingamen breaks off from her neck. Later Thor borrows Brísingamen when he dresses up as Freyja to go to the wedding at Jǫtunheimr.Prose Edda
Húsdrápa, a skaldic poem partially preserved in the Prose Edda, relates the story of the theft of Brísingamen by Loki. One day when Freyja wakes up and finds Brísingamen missing, she enlists the help of Heimdallr to help her search for it. Eventually they find the thief, who turns out to be Loki who has transformed himself into a seal. Heimdallr turns into a seal as well and fights Loki (trans. Byock 2005):
After a lengthy battle at Singasteinn, Heimdallr wins and returns Brísingamen to Freyja.
Snorri Sturluson quoted this old poem in Skáldskaparmál, saying that because of this legend Heimdallr is called "Seeker of Freyja's Necklace" (Skáldskaparmál, section 8) and Loki is called "Thief of Brísingamen" (Skáldskaparmál, section 16). A similar story appears in the later Sörla þáttr, where Heimdallr does not appear.
Sörla þáttr
Sörla þáttr is a short story in the later and extended version of the Saga of Olaf Tryggvason in the manuscript of the Flateyjarbók, which was written and compiled by two Christian priests, Jon Thordson and Magnus Thorhalson, in the late 14th century. In the end of the story, the arrival of Christianity dissolves the old curse that traditionally was to endure until Ragnarök.
The battle of Högni and Heðinn is recorded in several medieval sources, including the skaldic poem Ragnarsdrápa, Skáldskaparmál (section 49), and Gesta Danorum: king Högni's daughter, Hildr, is kidnapped by king Heðinn. When Högni comes to fight Heðinn on an island, Hildr comes to offer her father a necklace on behalf of Heðinn for peace; but the two kings still battle, and Hildr resurrects the fallen to make them fight until Ragnarök. None of these earlier sources mentions Freyja or king Olaf Tryggvason, the historical figure who Christianized Norway and Iceland in the 10th Century.
Archaeological record
in Stockholm]]
A Völva was buried with considerable splendour in Hagebyhöga in Östergötland, Sweden. In addition to being buried with her wand, she had received great riches which included horses, a wagon and an Arabian bronze pitcher. There was also a silver pendant, which represents a woman with a broad necklace around her neck. This kind of necklace was only worn by the most prominent women during the Iron Age and some have interpreted it as Freyja's necklace Brísingamen. The pendant may represent Freyja herself.Modern influence
Alan Garner wrote a children's fantasy novel called The Weirdstone of Brisingamen, published in 1960, about an enchanted teardrop bracelet.
Diana Paxson's novel Brisingamen features Freyja and her necklace.
Black Phoenix Alchemy Lab has a perfumed oil scent named Brisingamen.
Freyja's necklace Brisingamen features prominently in Betsy Tobin's novel Iceland, where the necklace is seen to have significant protective powers.
The Brisingamen feature as a major item in Joel Rosenberg's Keepers of the Hidden Ways series of books. In it, there are seven jewels that were created for the necklace by the Dwarfs and given to the Norse goddess. She in turn eventually split them up into the seven separate jewels and hid them throughout the realm, as together they hold the power to shape the universe by its holder. The book's plot is about discovering one of them and deciding what to do with the power they allow while avoiding Loki and other Norse characters.
In Christopher Paolini's The Inheritance Cycle, the word "brisingr" means fire. This is probably a distillation of the word brisinga.
Ursula Le Guin's short story ''Semley's Necklace, the first part of her novel Rocannon's World, is a retelling of the Brisingamen story on an alien planet.
Brisingamen is represented as a card in the Yu-Gi-Oh! Trading Card Game, "Nordic Relic Brisingamen".
Brisingamen was part of MMORPG Ragnarok Online lore, which is ranked as "God item". The game is heavily based from Norse mythology.
In the Firefly Online game, one of the planets of the Himinbjörg system (which features planets named after figures from Germanic mythology) is named Brisingamen. It is third from the star, and has moons named Freya, Beowulf, and Alberich.
The Brisingamen is an item that can be found and equipped in the video game, Castlevania: Lament of Innocence.
In the French comics Freaks' Squeele'', the character of Valkyrie accesses her costume change ability by touching a decorative torc necklace affixed to her forehead, named Brizingamen.
See also
* Rings in Germanic cultures
* Necklace of Harmonia, a necklace owned by the Greek goddess Harmonia, a daughter of Aphrodite
Explanatory notes
References
;Citations
;Bibliography
*
* In 32 st.
Category:Artifacts in Norse mythology
Category:Freyja
Category:Torcs
Category:Mythological clothing
Category:Individual necklaces | https://en.wikipedia.org/wiki/Brísingamen | 2025-04-05T18:26:40.843595 |
4064 | Borsuk–Ulam theorem | thumb|right|alt=mathematics, the Borsuk–Ulam theorem states that every continuous function from an n-sphere into Euclidean n-space maps some pair of antipodal points to the same point.|Antipodal
In mathematics, the Borsuk–Ulam theorem states that every continuous function from an n-sphere into Euclidean n-space maps some pair of antipodal points to the same point. Here, two points on a sphere are called antipodal if they are in exactly opposite directions from the sphere's center.
Formally: if f: S^n \to \R^n is continuous then there exists an x\in S^n such that: f(-x)=f(x).
The case n=1 can be illustrated by saying that there always exist a pair of opposite points on the Earth's equator with the same temperature. The same is true for any circle. This assumes the temperature varies continuously in space, which is, however, not always the case.
The case n=2 is often illustrated by saying that at any moment, there is always a pair of antipodal points on the Earth's surface with equal temperatures and equal barometric pressures, assuming that both parameters vary continuously in space.
The Borsuk–Ulam theorem has several equivalent statements in terms of odd functions. Recall that S^n is the n-sphere and B^n is the n-ball:
If g : S^n \to \R^n is a continuous odd function, then there exists an x\in S^n such that: g(x)=0.
If g : B^n \to \R^n is a continuous function which is odd on S^{n-1} (the boundary of B^n), then there exists an x\in B^n such that: g(x)=0.
History
According to , the first historical mention of the statement of the Borsuk–Ulam theorem appears in . The first proof was given by , where the formulation of the problem was attributed to Stanisław Ulam. Since then, many alternative proofs have been found by various authors, as collected by .
Equivalent statements
The following statements are equivalent to the Borsuk–Ulam theorem.
With odd functions
A function g is called odd (aka antipodal or antipode-preserving) if for every x, g(-x)=-g(x).
The Borsuk–Ulam theorem is equivalent to each of the following statements:
(1) Each continuous odd function S^n\to \R^n has a zero.
(2) There is no continuous odd function S^n \to S^{n-1}.
Here is a proof that the Borsuk-Ulam theorem is equivalent to (1):
(\Longrightarrow) If the theorem is correct, then it is specifically correct for odd functions, and for an odd function, g(-x)g(x) iff g(x)0. Hence every odd continuous function has a zero.
(\Longleftarrow ) For every continuous function f:S^n\to \R^n, the following function is continuous and odd: g(x)f(x)-f(-x). If every odd continuous function has a zero, then g has a zero, and therefore, f(x)f(-x).
To prove that (1) and (2) are equivalent, we use the following continuous odd maps:
the obvious inclusion i: S^{n-1}\to \R^n\setminus \{0\} ,
and the radial projection map p: \R^n\setminus \{0\} \to S^{n-1} given by x \mapsto \frac{x}{|x|}.
The proof now writes itself.
((1) \Longrightarrow (2)) We prove the contrapositive. If there exists a continuous odd function f:S^n\to S^{n-1}, then i\circ f is a continuous odd function S^n\to \R^n\setminus \{0\}.
((1) \Longleftarrow (2)) Again we prove the contrapositive. If there exists a continuous odd function f:S^n\to \R^{n}\setminus\{0\}, then p\circ f is a continuous odd function S^n\to S^{n-1}.
Proofs
1-dimensional case
The 1-dimensional case can easily be proved using the intermediate value theorem (IVT).
Let g be the odd real-valued continuous function on a circle defined by g(x)f(x)-f(-x). Pick an arbitrary x. If g(x)0 then we are done. Otherwise, without loss of generality, g(x)>0. But g(-x) Hence, by the IVT, there is a point y at which g(y)=0.
General case
Algebraic topological proof
Assume that h: S^n \to S^{n-1} is an odd continuous function with n > 2 (the case n 1 is treated above, the case n 2 can be handled using basic covering theory). By passing to orbits under the antipodal action, we then get an induced continuous function h': \mathbb{RP}^n \to \mathbb{RP}^{n-1} between real projective spaces, which induces an isomorphism on fundamental groups. By the Hurewicz theorem, the induced ring homomorphism on cohomology with \mathbb F_2 coefficients [where \mathbb F_2 denotes the field with two elements],
\mathbb F_2[a]/a^{n+1} H^*\left(\mathbb{RP}^n; \mathbb{F}_2\right) \leftarrow H^*\left(\mathbb{RP}^{n-1}; \mathbb F_2\right) \mathbb F_2[b]/b^{n},
sends b to a. But then we get that b^n = 0 is sent to a^n \neq 0, a contradiction.
One can also show the stronger statement that any odd map S^{n-1} \to S^{n-1} has odd degree and then deduce the theorem from this result.
Combinatorial proof
The Borsuk–Ulam theorem can be proved from Tucker's lemma.
Let g : S^n \to \R^n be a continuous odd function. Because g is continuous on a compact domain, it is uniformly continuous. Therefore, for every \epsilon > 0, there is a \delta > 0 such that, for every two points of S_n which are within \delta of each other, their images under g are within \epsilon of each other.
Define a triangulation of S_n with edges of length at most \delta. Label each vertex v of the triangulation with a label l(v)\in {\pm 1, \pm 2, \ldots, \pm n} in the following way:
The absolute value of the label is the index of the coordinate with the highest absolute value of g: |l(v)| = \arg\max_k (|g(v)_k|).
The sign of the label is the sign of g at the above coordinate, so that: l(v) = \sgn (g(v)_{|l(v)|}) |l(v)|.
Because g is odd, the labeling is also odd: l(-v) -l(v). Hence, by Tucker's lemma, there are two adjacent vertices u, v with opposite labels. Assume w.l.o.g. that the labels are l(u)1, l(v)-1. By the definition of l, this means that in both g(u) and g(v), coordinate #1 is the largest coordinate: in g(u) this coordinate is positive while in g(v) it is negative. By the construction of the triangulation, the distance between g(u) and g(v) is at most \epsilon, so in particular |g(u)_1 - g(v)_1| |g(u)_1| + |g(v)_1| \leq \epsilon (since g(u)_1 and g(v)_1 have opposite signs) and so |g(u)_1| \leq \epsilon. But since the largest coordinate of g(u) is coordinate #1, this means that |g(u)_k| \leq \epsilon for each 1 \leq k \leq n. So |g(u)| \leq c_n \epsilon, where c_n is some constant depending on n and the norm |\cdot| which you have chosen.
The above is true for every \epsilon > 0; since S_n is compact there must hence be a point u in which |g(u)|=0.
Corollaries
No subset of \R^n is homeomorphic to S^n
The ham sandwich theorem: For any compact sets A1, ..., An in \R^n we can always find a hyperplane dividing each of them into two subsets of equal measure.
Equivalent results
Above we showed how to prove the Borsuk–Ulam theorem from Tucker's lemma. The converse is also true: it is possible to prove Tucker's lemma from the Borsuk–Ulam theorem. Therefore, these two theorems are equivalent.
Generalizations
In the original theorem, the domain of the function f is the unit n-sphere (the boundary of the unit n-ball). In general, it is true also when the domain of f is the boundary of any open bounded symmetric subset of \R^n containing the origin (Here, symmetric means that if x is in the subset then -x is also in the subset).
More generally, if M is a compact n-dimensional Riemannian manifold, and f: M \rightarrow \mathbb{R}^n is continuous, there exists a pair of points x and y in M such that f(x) = f(y) and x and y are joined by a geodesic of length \delta, for any prescribed \delta > 0.
Consider the function A which maps a point to its antipodal point: A(x) -x. Note that A(A(x))x. The original theorem claims that there is a point x in which f(A(x))f(x). In general, this is true also for every function A for which A(A(x))x. However, in general this is not true for other functions A.
See also
Topological combinatorics
Necklace splitting problem
Ham sandwich theorem
Kakutani's theorem (geometry)
Imre Bárány
Notes
References
External links
The Borsuk-Ulam Explorer. An interactive illustration of Borsuk-Ulam Theorem.
Category:Theorems in algebraic topology
Category:Combinatorics
Category:Theory of continuous functions
Category:Theorems in topology | https://en.wikipedia.org/wiki/Borsuk–Ulam_theorem | 2025-04-05T18:26:40.860111 |
4067 | Bragi | right|thumb|Bragi is shown with a harp and accompanied by his wife Iðunn in this 19th-century painting by Nils Blommér.
Bragi (Old Norse) is the skaldic god of poetry in Norse mythology.
Etymology
The theonym Bragi probably stems from the masculine noun bragr, which can be translated in Old Norse as 'poetry' (cf. Icelandic bragur 'poem, melody, wise') or as 'the first, noblest' (cf. poetic Old Norse bragnar 'chiefs, men', bragningr 'king'). It is unclear whether the theonym semantically derives from the first meaning or the second.
A connection has been also suggested with the Old Norse bragarfull, the cup drunk in solemn occasions with the taking of vows. The word is usually taken to semantically derive from the second meaning of bragr ('first one, noblest'). A relation with the Old English term brego ('lord, prince') remains uncertain.
Bragi regularly appears as a personal name in Old Norse and Old Swedish sources, which according to linguist Jan de Vries might indicate the secondary character of the god's name.
Attestations
thumb|upright|Bragi, holding a harp, sings before his wife Iðunn (1895) by Lorenz Frølich.
thumb|Bragi by Carl Wahlbom (1810–1858).
thumb|Loki Taunts Bragi (1908) by W. G. Collingwood.
Snorri Sturluson writes in the Gylfaginning after describing Odin, Thor, and Baldr:
In Skáldskaparmál Snorri writes:
That Bragi is Odin's son is clearly mentioned only here and in some versions of a list of the sons of Odin (see Sons of Odin). But "wish-son" in stanza 16 of the Lokasenna could mean "Odin's son" and is translated by Hollander as Odin's kin. Bragi's mother is possibly Frigg.
In that poem Bragi at first forbids Loki to enter the hall but is overruled by Odin. Loki then gives a greeting to all gods and goddesses who are in the hall save to Bragi. Bragi generously offers his sword, horse, and an arm ring as peace gift but Loki only responds by accusing Bragi of cowardice, of being the most afraid to fight of any of the Æsir and Elves within the hall. Bragi responds that if they were outside the hall, he would have Loki's head, but Loki only repeats the accusation. When Bragi's wife Iðunn attempts to calm Bragi, Loki accuses her of embracing her brother's slayer, a reference to matters that have not survived. It may be that Bragi had slain Iðunn's brother.
A passage in the Poetic Edda poem Sigrdrífumál describes runes being graven on the sun, on the ear of one of the sun-horses and on the hoofs of the other, on Sleipnir's teeth, on bear's paw, on eagle's beak, on wolf's claw, and on several other things including on Bragi's tongue. Then the runes are shaved off and the shavings are mixed with mead and sent abroad so that Æsir have some, Elves have some, Vanir have some, and Men have some, these being speech runes and birth runes, ale runes, and magic runes. The meaning of this is obscure.
The first part of Snorri Sturluson's Skáldskaparmál is a dialogue between Ægir and Bragi about the nature of poetry, particularly skaldic poetry. Bragi tells the origin of the mead of poetry from the blood of Kvasir and how Odin obtained this mead. He then goes on to discuss various poetic metaphors known as kennings.
Snorri Sturluson clearly distinguishes the god Bragi from the mortal skald Bragi Boddason, whom he often mentions separately. The appearance of Bragi in the Lokasenna indicates that if these two Bragis were originally the same, they have become separated for that author also, or that chronology has become very muddled and Bragi Boddason has been relocated to mythological time. Compare the appearance of the Welsh Taliesin in the second branch of the Mabinogi. Legendary chronology sometimes does become muddled. Whether Bragi the god originally arose as a deified version of Bragi Boddason was much debated in the 19th century, especially by the scholars Eugen Mogk and Sophus Bugge. The debate remains undecided.
In the poem Eiríksmál Odin, in Valhalla, hears the coming of the dead Norwegian king Eric Bloodaxe and his host, and bids the heroes Sigmund and Sinfjötli rise to greet him. Bragi is then mentioned, questioning how Odin knows that it is Eric and why Odin has let such a king die. In the poem Hákonarmál, Hákon the Good is taken to Valhalla by the valkyrie Göndul and Odin sends Hermóðr and Bragi to greet him. In these poems Bragi could be either a god or a dead hero in Valhalla. Attempting to decide is further confused because Hermóðr also seems to be sometimes the name of a god and sometimes the name of a hero. That Bragi was also the first to speak to Loki in the Lokasenna as Loki attempted to enter the hall might be a parallel. It might have been useful and customary that a man of great eloquence and versed in poetry should greet those entering a hall. He is also depicted in tenth-century court poetry of helping to prepare Valhalla for new arrivals and welcoming the kings who have been slain in battle to the hall of Odin.
Skalds named Bragi
Bragi Boddason
In the Prose Edda Snorri Sturluson quotes many stanzas attributed to Bragi Boddason the old (Bragi Boddason inn gamli), a Norwegian court poet who served several Swedish kings, Ragnar Lodbrok, Östen Beli and Björn at Hauge who reigned in the first half of the 9th century. This Bragi was reckoned as the first skaldic poet, and was certainly the earliest skaldic poet then remembered by name whose verse survived in memory.
Snorri especially quotes passages from Bragi's Ragnarsdrápa, a poem supposedly composed in honor of the famous legendary Viking Ragnar Lodbrok ('Hairy-breeches') describing the images on a decorated shield which Ragnar had given to Bragi. The images included Thor's fishing for Jörmungandr, Gefjun's ploughing of Zealand from the soil of Sweden, the attack of Hamdir and Sorli against King Jörmunrekk, and the never-ending battle between Hedin and Högni.
Bragi son of Hálfdan the Old
Bragi son of Hálfdan the Old is mentioned only in the Skjáldskaparmál. This Bragi is the sixth of the second of two groups of nine sons fathered by King Hálfdan the Old on Alvig the Wise, daughter of King Eymund of Hólmgard. This second group of sons are all eponymous ancestors of legendary families of the north. Snorri says:
Bragi, from whom the Bragnings are sprung (that is the race of Hálfdan the Generous).
Of the Bragnings as a race and of Hálfdan the Generous nothing else is known. However, Bragning is often, like some others of these dynastic names, used in poetry as a general word for 'king' or 'ruler'.
Bragi Högnason
In the eddic poem Helgakviða Hundingsbana II, Bragi Högnason, his brother Dag, and his sister Sigrún were children of Högne, the king of East Götaland. The poem relates how Sigmund's son Helgi Hundingsbane agreed to take Sigrún daughter of Högni as his wife against her unwilling betrothal to Hodbrodd son of Granmar the king of Södermanland. In the subsequent battle of Frekastein (probably one of the 300 hill forts of Södermanland, as stein meant "hill fort") against Högni and Granmar, all the chieftains on Granmar's side are slain, including Bragi, except for Bragi's brother Dag.
In popular culture
In the 2002 Ensemble Studios game Age of Mythology, Bragi is one of nine minor gods Norse players can worship.
References
Bibliography
Further reading
DuBois, Thomas A. Nordic Religions in the Viking Age. Philadelphia: University of Pennsylvania Press, 1999. .
Dumézil, Georges. Gods of the Ancient Northmen. Berkeley: University of California Press, 1973. .
Munch, P. A. Norse Mythology: Legends of Gods and Heroes. London: H. Milford, Oxford University Press, 1926.
External links
Category:Æsir
Category:Knowledge gods
Category:Norse gods
Category:Arts gods | https://en.wikipedia.org/wiki/Bragi | 2025-04-05T18:26:40.869153 |
4068 | Blaise Pascal | | birth_place = Clermont-Ferrand, France
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| death_place = Paris, France
| father = Étienne Pascal
| relatives = Marguerite Périer (niece) <br>Jacqueline Pascal (sister) <br /> Gilberte Périer (sister)
| module
| main_interests =
| notable_ideas =
| signature = Blaise Pascal signature.svg
}}
}}
Blaise Pascal , , ; }} (19June 162319August 1662) was a French mathematician, physicist, inventor, philosopher, and Catholic writer.
Pascal was a child prodigy who was educated by his father, a tax collector in Rouen. His earliest mathematical work was on projective geometry; he wrote a significant treatise on the subject of conic sections at the age of 16. He later corresponded with Pierre de Fermat on probability theory, strongly influencing the development of modern economics and social science. In 1642, he started some pioneering work on calculating machines (called Pascal's calculators and later Pascalines), establishing him as one of the first two inventors of the mechanical calculator.
Like his contemporary René Descartes, Pascal was also a pioneer in the natural and applied sciences. Pascal wrote in defense of the scientific method and produced several controversial results. He made important contributions to the study of fluids, and clarified the concepts of pressure and vacuum by generalising the work of Evangelista Torricelli. Following Torricelli and Galileo Galilei, in 1647 he rebutted the likes of Aristotle and Descartes who insisted that nature abhors a vacuum.
He is also credited as the inventor of modern public transportation, having established the carrosses à cinq sols, the first modern public transport service, shortly before his death in 1662.
In 1646, he and his sister Jacqueline identified with the religious movement within Catholicism known by its detractors as Jansenism. Following a religious experience in late 1654, he began writing influential works on philosophy and theology. His two most famous works date from this period: the and the Pensées, the former set in the conflict between Jansenists and Jesuits. The latter contains Pascal's wager, known in the original as the Discourse on the Machine, a fideistic probabilistic argument for why one should believe in God. In that year, he also wrote an important treatise on the arithmetical triangle. Between 1658 and 1659, he wrote on the cycloid and its use in calculating the volume of solids. Following several years of illness, Pascal died in Paris at the age of 39.Early life and educationPascal was born in Clermont-Ferrand, which is in France's Auvergne region, by the Massif Central. He lost his mother, Antoinette Begon, at the age of three. His father, Étienne Pascal, also an amateur mathematician, was a local judge and member of the "Noblesse de Robe". Pascal had two sisters, the younger Jacqueline and the elder Gilberte.
Move to Paris
In 1631, five years after the death of his wife, Étienne Pascal moved with his children to Paris. The newly arrived family soon hired Louise Delfault, a maid who eventually became a key member of the family. Étienne, who never remarried, decided that he alone would educate his children.
The young Pascal showed an extraordinary intellectual ability, with an amazing aptitude for mathematics and science. Etienne had tried to keep his son from learning mathematics; but by the age of 12, Pascal had rediscovered, on his own, using charcoal on a tile floor, Euclid’s first thirty-two geometric propositions, and was thus given a copy of Euclid's Elements.
Essay on Conics
Particularly of interest to Pascal was a work of Desargues on conic sections. Following Desargues' thinking, the 16-year-old Pascal produced, as a means of proof, a short treatise on what was called the Mystic Hexagram, Essai pour les coniques (Essay on Conics) and sent it — his first serious work of mathematics — to Père Mersenne in Paris; it is known still today as Pascal's theorem. It states that if a hexagon is inscribed in a circle (or conic) then the three intersection points of opposite sides lie on a line (called the Pascal line).
Pascal's work was so precocious that René Descartes was convinced that Pascal's father had written it. When assured by Mersenne that it was, indeed, the product of the son and not the father, Descartes dismissed it with a sniff: "I do not find it strange that he has offered demonstrations about conics more appropriate than those of the ancients," adding, "but other matters related to this subject can be proposed that would scarcely occur to a 16-year-old child."
Leaving Paris
In France at that time offices and positions could be—and were—bought and sold. In 1631, Étienne sold his position as second president of the Cour des Aides for 65,665 livres. The money was invested in a government bond which provided, if not a lavish, then certainly a comfortable income which allowed the Pascal family to move to, and enjoy, Paris, but in 1638 Cardinal Richelieu, desperate for money to carry on the Thirty Years' War, defaulted on the government's bonds. Suddenly Étienne Pascal's worth had dropped from nearly 66,000 livres to less than 7,300.
Like so many others, Étienne was eventually forced to flee Paris because of his opposition to the fiscal policies of Richelieu, leaving his three children in the care of his neighbour Madame Sainctot, a great beauty with an infamous past who kept one of the most glittering and intellectual salons in all France. It was only when Jacqueline performed well in a children's play with Richelieu in attendance that Étienne was pardoned. In time, Étienne was back in good graces with the Cardinal and in 1639 had been appointed the king's commissioner of taxes in the city of Rouen—a city whose tax records, thanks to uprisings, were in utter chaos.
Pascaline
on display at the Musée des Arts et Métiers, Paris|alt=]]
In 1642, in an effort to ease his father's endless, exhausting calculations, and recalculations, of taxes owed and paid (into which work the young Pascal had been recruited), Pascal, not yet 19, constructed a mechanical calculator capable of addition and subtraction, called ''Pascal's calculator or the Pascaline''. Of the eight Pascalines known to have survived, four are held by the Musée des Arts et Métiers in Paris and one more by the Zwinger museum in Dresden, Germany, exhibit two of his original mechanical calculators.
Although these machines are pioneering forerunners to a further 400 years of development of mechanical methods of calculation, and in a sense to the later field of computer engineering, the calculator failed to be a great commercial success. Partly because it was still quite cumbersome to use in practice, but probably primarily because it was extraordinarily expensive, the Pascaline became little more than a toy, and a status symbol, for the very rich both in France and elsewhere in Europe. Pascal continued to make improvements to his design through the next decade, and he refers to some 50 machines that were built to his design. He built 20 finished machines over the following 10 years.
Mathematics
Probability
In 1654, prompted by his friend the Chevalier de Méré, Pascal corresponded with Pierre de Fermat on the subject of gambling problems, and from that collaboration was born the mathematical theory of probability. The specific problem was that of two players who want to finish a game early and, given the current circumstances of the game, want to divide the stakes fairly, based on the chance each has of winning the game from that point. From this discussion, the notion of expected value was introduced. John Ross writes, "Probability theory and the discoveries following it changed the way we regard uncertainty, risk, decision-making, and an individual's and society's ability to influence the course of future events." Pascal, in the Pensées, used a probabilistic argument, Pascal's wager, to justify belief in God and a virtuous life. However, Pascal and Fermat, though doing important early work in probability theory, did not develop the field very far. Christiaan Huygens, learning of the subject from the correspondence of Pascal and Fermat, wrote the first book on the subject. Later figures who continued the development of the theory include Abraham de Moivre and Pierre-Simon Laplace. The work done by Fermat and Pascal into the calculus of probabilities laid important groundwork for Leibniz's formulation of the calculus.Treatise on the Arithmetical Triangle
Pascal's Traité du triangle arithmétique, written in 1654 but published posthumously in 1665, described a convenient tabular presentation for binomial coefficients which he called the arithmetical triangle, but is now called Pascal's triangle. The triangle can also be represented:
{| class="wikitable"
|-
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He defined the numbers in the triangle by recursion: Call the number in the (m + 1)th row and (n + 1)th column t<sub>mn</sub>. Then t<sub>mn</sub> t<sub>m–1,n</sub> + t<sub>m,n–1</sub>, for m 0, 1, 2, ... and n 0, 1, 2, ... The boundary conditions are t<sub>m,−1</sub> 0, t<sub>−1,n</sub> 0 for m 1, 2, 3, ... and n 1, 2, 3, ... The generator t<sub>00</sub> 1. Pascal concluded with the proof,
:<math>t_{mn} = \frac{(m+n)(m+n-1)\cdots(m+1)}{n(n-1)\cdots 1}.</math>
In the same treatise, Pascal gave an explicit statement of the principle of mathematical induction.
That same year, Pascal had a religious experience, and mostly gave up work in mathematics.
Cycloid
, by Augustin Pajou, 1785, Louvre|alt=]]
In 1658, Pascal, while suffering from a toothache, began considering several problems concerning the cycloid. His toothache disappeared, and he took this as a heavenly sign to proceed with his research. Eight days later he had completed his essay and, to publicize the results, proposed a contest.
Pascal proposed three questions relating to the center of gravity, area and volume of the cycloid, with the winner or winners to receive prizes of 20 and 40 Spanish doubloons. Pascal, Gilles de Roberval and Pierre de Carcavi were the judges, and neither of the two submissions (by John Wallis and Antoine de Lalouvère) were judged to be adequate. While the contest was ongoing, Christopher Wren sent Pascal a proposal for a proof of the rectification of the cycloid; Roberval claimed promptly that he had known of the proof for years. Wallis published Wren's proof (crediting Wren) in Wallis's Tractus Duo, giving Wren priority for the first published proof.
Physics
experiment]]
Pascal contributed to several fields in physics, most notably the fields of fluid mechanics and pressure. In honour of his scientific contributions, the name Pascal has been given to the SI unit of pressure and Pascal's law (an important principle of hydrostatics). He introduced a primitive form of roulette and the roulette wheel in his search for a perpetual motion machine.
Fluid dynamics
His work in the fields of hydrodynamics and hydrostatics centered on the principles of hydraulic fluids. His inventions include the hydraulic press (using hydraulic pressure to multiply force) and the syringe. He proved that hydrostatic pressure depends not on the weight of the fluid but on the elevation difference. He demonstrated this principle by attaching a thin tube to a barrel full of water and filling the tube with water up to the level of the third floor of a building. This caused the barrel to leak, in what became known as Pascal's barrel experiment.
Vacuum
By 1647, Pascal had learned of Evangelista Torricelli's experimentation with barometers. Having replicated an experiment that involved placing a tube filled with mercury upside down in a bowl of mercury, Pascal questioned what force kept some mercury in the tube and what filled the space above the mercury in the tube. At the time, most scientists including Descartes believed in a plenum, i. e. some invisible matter filled all of space, rather than a vacuum ("Nature abhors a vacuum)." This was based on the Aristotelian notion that everything in motion was a substance, moved by another substance. Furthermore, light passed through the glass tube, suggesting a substance such as aether rather than vacuum filled the space.
Following more experimentation in this vein, in 1647 Pascal produced Experiences nouvelles touchant le vide ("New experiments with the vacuum"), which detailed basic rules describing to what degree various liquids could be supported by air pressure. It also provided reasons why it was indeed a vacuum above the column of liquid in a barometer tube. This work was followed by ''Récit de la grande expérience de l'équilibre des liqueurs'' ("Account of the great experiment on equilibrium in liquids") published in 1648.
First atmospheric pressure vs. altitude experiment
The Torricellian vacuum found that air pressure is equal to the weight of 30 inches of mercury. If air has a finite weight, Earth's atmosphere must have a maximum height. Pascal reasoned that if true, air pressure on a high mountain must be less than at a lower altitude. He lived near the Puy de Dôme mountain, tall, but his health was poor so could not climb it. On 19 September 1648, after many months of Pascal's friendly but insistent prodding, Florin Périer, husband of Pascal's elder sister Gilberte, was finally able to carry out the fact-finding mission vital to Pascal's theory. The account, written by Périer, reads:
lines above the quicksilver in the vessel...I repeated the experiment two more times while standing in the same spot...[they] produced the same result each time...
I attached one of the tubes to the vessel and marked the height of the quicksilver and...asked Father Chastin, one of the Minim Brothers...to watch if any changes should occur through the day...Taking the other tube and a portion of the quick silver...I walked to the top of Puy-de-Dôme, about 500 fathoms higher than the monastery, where upon experiment...found that the quicksilver reached a height of only 23" and 2 lines...I repeated the experiment five times with care...each at different points on the summit...found the same height of quicksilver...in each case...}}
Pascal replicated the experiment in Paris by carrying a barometer up to the top of the bell tower at the church of Saint-Jacques-de-la-Boucherie, a height of about 50 metres. The mercury dropped two lines. He found with both experiments that an ascent of 7 fathoms lowers the mercury by half a line. Note: Pascal used pouce and ligne for "inch" and "line", and toise for "fathom".
In a reply to Étienne Noël, who believed in the plenum, Pascal wrote, echoing contemporary notions of science and falsifiability: "In order to show that a hypothesis is evident, it does not suffice that all the phenomena follow from it; instead, if it leads to something contrary to a single one of the phenomena, that suffices to establish its falsity."
Blaise Pascal Chairs are given to outstanding international scientists to conduct their research in the Ile de France region.Adult life: religion, literature, and philosophy Religious conversion
In the winter of 1646, Pascal's 58-year-old father broke his hip when he slipped and fell on an icy street of Rouen; given the man's age and the state of medicine in the 17th century, a broken hip could be a very serious condition, perhaps even fatal. Rouen was home to two of the finest doctors in France, Deslandes and de la Bouteillerie. The elder Pascal "would not let anyone other than these men attend him...It was a good choice, for the old man survived and was able to walk again..." However treatment and rehabilitation took three months, during which time La Bouteillerie and Deslandes had become regular visitors.
Both men were followers of Jean Guillebert, proponent of a splinter group from Catholic teaching known as Jansenism. This still fairly small sect was making surprising inroads into the French Catholic community at that time. It espoused rigorous Augustinism. Blaise spoke with the doctors frequently, and after their successful treatment of his father, borrowed from them works by Jansenist authors. In this period, Pascal experienced a sort of "first conversion" and began to write on theological subjects in the course of the following year.
Pascal fell away from this initial religious engagement and experienced a few years of what some biographers have called his "worldly period" (1648–54). His father died in 1651 and left his inheritance to Pascal and his sister Jacqueline, for whom Pascal acted as conservator. Jacqueline announced that she would soon become a postulant in the Jansenist convent of Port-Royal. Pascal was deeply affected and very sad, not because of her choice, but because of his chronic poor health; he needed her just as she had needed him.
By the end of October in 1651, a truce had been reached between brother and sister. In return for a healthy annual stipend, Jacqueline signed over her part of the inheritance to her brother. Gilberte had already been given her inheritance in the form of a dowry. In early January, Jacqueline left for Port-Royal. On that day, according to Gilberte concerning her brother, "He retired very sadly to his rooms without seeing Jacqueline, who was waiting in the little parlor..."
In early June 1653, after what must have seemed like endless badgering from Jacqueline,
Pascal formally signed over the whole of his sister's inheritance to Port-Royal, which, to him, "had begun to smell like a cult." With two-thirds of his father's estate now gone, the 29-year-old Pascal was now consigned to genteel poverty.
For a while, Pascal pursued the life of a bachelor. During visits to his sister at Port-Royal in 1654, he displayed contempt for affairs of the world but was not drawn to God.MemorialOn the 23 of November, 1654, between 10:30 and 12:30 at night, Pascal had an intense religious experience and immediately wrote a brief note to himself which began: "Fire. God of Abraham, God of Isaac, God of Jacob, not of the philosophers and the scholars..." and concluded by quoting Psalm 119:16: "I will not forget thy word. Amen." He seems to have carefully sewn this document into his coat and always transferred it when he changed clothes; a servant discovered it only by chance after his death. This piece is now known as the Memorial. The story of a carriage accident as having led to the experience described in the Memorial is disputed by some scholars.
His belief and religious commitment revitalized, Pascal visited the older of two convents at Port-Royal for a two-week retreat in January 1655. For the next four years, he regularly travelled between Port-Royal and Paris. It was at this point immediately after his conversion when he began writing his first major literary work on religion, the Provincial Letters.
Literature
In literature, Pascal is regarded as one of the most important authors of the French Classical Period and is read today as one of the greatest masters of French prose. His use of satire and wit influenced later polemicists.
The Provincial Letters
Beginning in 1656–57, Pascal published his memorable attack on casuistry, a popular ethical method used by Catholic thinkers in the early modern period (especially the Jesuits, and in particular Antonio Escobar). Pascal denounced casuistry as the mere use of complex reasoning to justify moral laxity and all sorts of sins. The 18-letter series was published between 1656 and 1657 under the pseudonym Louis de Montalte and incensed Louis XIV. The king ordered that the book be shredded and burnt in 1660. In 1661, in the midst of the formulary controversy, the Jansenist school at Port-Royal was condemned and closed down; those involved with the school had to sign a 1656 papal bull condemning the teachings of Jansen as heretical. The final letter from Pascal, in 1657, had defied Alexander VII himself. Even Pope Alexander, while publicly opposing them, nonetheless was persuaded by Pascal's arguments.
Aside from their religious influence, the Provincial Letters were popular as a literary work. Pascal's use of humor, mockery, and vicious satire in his arguments made the letters ripe for public consumption, and influenced the prose of later French writers like Voltaire and Jean-Jacques Rousseau.
It is in the Provincial Letters that Pascal made his oft-quoted apology for writing a long letter, as he had not had time to write a shorter one.
From Letter XVI, as translated by Thomas M'Crie:
'Reverend fathers, my letters were not wont either to be so prolix, or to follow so closely on
one another. Want of time must plead my excuse for both of these faults. The present letter is
a very long one, simply because I had no leisure to make it shorter.'
Charles Perrault wrote of the Letters: "Everything is there—purity of language, nobility of thought, solidity in reasoning, finesse in raillery, and throughout an agrément not to be found anywhere else."
Philosophy
Pascal is arguably best known as a philosopher, considered by some the second greatest French mind behind René Descartes. He was a dualist following Descartes. However, he is also remembered for his opposition to both the rationalism of the likes of Descartes and simultaneous opposition to the main countervailing epistemology, empiricism, preferring fideism.
In terms of God, Descartes and Pascal disagreed. Pascal wrote that "I cannot forgive Descartes. In all his philosophy he would have been quite willing to dispense with God, but he couldn't avoid letting him put the world in motion; afterwards he didn't need God anymore". He opposed the rationalism of people like Descartes as applied to the existence of a God, preferring faith as "reason can decide nothing here". For Pascal the nature of God was such that such proofs cannot reveal God. Humans "are in darkness and estranged from God" because "he has hidden Himself from their knowledge".
He cared above all about the philosophy of religion. Pascalian theology has grown out of his perspective that humans are, according to Wood, "born into a duplicitous world that shapes us into duplicitous subjects and so we find it easy to reject God continually and deceive ourselves about our own sinfulness".Philosophy of mathematics
Pascal's major contribution to the philosophy of mathematics came with his ''De l'Esprit géométrique ("Of the Geometrical Spirit"), originally written as a preface to a geometry textbook for one of the famous Petites écoles de Port-Royal ("Little Schools of Port-Royal"). The work was unpublished until over a century after his death. Here, Pascal looked into the issue of discovering truths, arguing that the ideal of such a method would be to found all propositions on already established truths. At the same time, however, he claimed this was impossible because such established truths would require other truths to back them up—first principles, therefore, cannot be reached. Based on this, Pascal argued that the procedure used in geometry was as perfect as possible, with certain principles assumed and other propositions developed from them. Nevertheless, there was no way to know the assumed principles to be true.
Pascal also used De l'Esprit géométrique to develop a theory of definition. He distinguished between definitions which are conventional labels defined by the writer and definitions which are within the language and understood by everyone because they naturally designate their referent. The second type would be characteristic of the philosophy of essentialism. Pascal claimed that only definitions of the first type were important to science and mathematics, arguing that those fields should adopt the philosophy of formalism as formulated by Descartes.
In De l'Art de persuader'' ("On the Art of Persuasion"), Pascal looked deeper into geometry's axiomatic method, specifically the question of how people come to be convinced of the axioms upon which later conclusions are based. Pascal agreed with Montaigne that achieving certainty in these axioms and conclusions through human methods is impossible. He asserted that these principles can be grasped only through intuition, and that this fact underscored the necessity for submission to God in searching out truths.
Pensées
|sourceNo. 200}}
Pascal's most influential theological work, referred to posthumously as the Pensées ("Thoughts") is widely considered to be a masterpiece, and a landmark in French prose. When commenting on one particular section (Thought #72), Sainte-Beuve praised it as the finest pages in the French language. Will Durant hailed the Pensées as "the most eloquent book in French prose".
The Pensées was not completed before his death. It was to have been a sustained and coherent examination and defense of the Christian faith, with the original title Apologie de la religion Chrétienne ("Defense of the Christian Religion"). The first version of the numerous scraps of paper found after his death appeared in print as a book in 1669 titled Pensées de M. Pascal sur la religion, et sur quelques autres sujets ("Thoughts of M. Pascal on religion, and on some other subjects") and soon thereafter became a classic.
One of the Apologies main strategies was to use the contradictory philosophies of Pyrrhonism and Stoicism, personalized by Montaigne on one hand, and Epictetus on the other, in order to bring the unbeliever to such despair and confusion that he would embrace God.
Last works and death
of Blaise Pascal|alt=]]
T. S. Eliot described him during this phase of his life as "a man of the world among ascetics, and an ascetic among men of the world." Pascal's ascetic lifestyle derived from a belief that it was natural and necessary for a person to suffer. In 1659, Pascal fell seriously ill. During his last years, he frequently tried to reject the ministrations of his doctors, saying, "Don't pity me, sickness is the natural state of Christians, because in it we are, as we should always be, in the suffering of evils, in the deprivation of all the goods and pleasures of the senses, free from all the passions that work throughout the course of life, without ambition, without avarice, in the continual expectation of death." Desiring to imitate Jesus’ poverty of spirit, in his spirit of zeal and charity, Pascal said if God allowed him to recover from his illness, he would be resolved to "have no other employment or occupation for the rest of my life than the service of the poor."
Louis XIV suppressed the Jansenist movement at Port-Royal in 1661. In response, Pascal wrote one of his final works, Écrit sur la signature du formulaire ("Writ on the Signing of the Form"), exhorting the Jansenists not to give in. Later that year, his sister Jacqueline died, which convinced Pascal to cease his polemics on Jansenism.
Inventor of public transportation
Pascal's last major achievement, returning to his mechanical genius, was inaugurating one of the first land-based public transport services, the carrosses à cinq sols, a network of horse-drawn multi-seat carriages that carried passengers on five fixed routes. Pascal also designated the operation principles which were later used to plan public transportation - the carriages had a fixed route, fixed price (five sols, hence the name), and left even if there were no passengers. The lines were not commercially successful, and the last one closed by 1675. Nonetheless, he has been described as the inventor of public transportation.
Illness and death
In 1662, Pascal's illness became more violent, and his emotional condition had severely worsened since his sister's death. Aware that his health was fading quickly, he sought a move to the hospital for incurable diseases, but his doctors declared that he was too unstable to be carried. In Paris on 18 August 1662, Pascal went into convulsions and received extreme unction. He died the next morning, his last words being "May God never abandon me," and was buried in the cemetery of Saint-Étienne-du-Mont. The headaches which affected Pascal are generally attributed to his brain lesion.
Legacy
, where he was buried]]
One of the Universities of Clermont-Ferrand, FranceUniversité Blaise Pascalis named after him. Établissement scolaire français Blaise-Pascal in Lubumbashi, Democratic Republic of the Congo is named after Pascal.
The 1969 Eric Rohmer film ''My Night at Maud's is based on the work of Pascal. Roberto Rossellini directed a filmed biopic, Blaise Pascal, which originally aired on Italian television in 1971. Pascal was a subject of the first edition of the 1984 BBC Two documentary, Sea of Faith, presented by Don Cupitt. The chameleon in the animated film Tangled is named for Pascal.
A programming language is named for Pascal. In 2014, Nvidia announced its new Pascal microarchitecture, which is named for Pascal. The first graphics cards featuring Pascal were released in 2016.
The 2017 game Nier: Automata has multiple characters named after famous philosophers; one of these is a sentient pacifistic machine named Pascal, who serves as a major supporting character. Pascal creates a village for machines to live peacefully with the androids they are at war with and acts as a parental figure for other machines trying to adapt to their newly-found individuality.
The otter in the Animal Crossing series is named for Pascal.
The minor planet 4500 Pascal is named in his honor.
Pope Paul VI, in encyclical Populorum progressio'', issued in 1967, quotes Pascal's Pensées:
In 2023, Pope Francis released an apostolic letter, Sublimitas et miseria hominis, dedicated to Blaise Pascal, in commemoration of the fourth centenary of his birth.
Pascal influenced both French sociologist Pierre Bourdieu, who named his Pascalian Meditations (1997) after him, and French philosopher Louis Althusser.Works
* Essai pour les coniques [Essay on conics] (1639)
* Experiences nouvelles touchant le vide [New experiments with the vacuum] (1647)
* ''Récit de la grande expérience de l'équilibre des liqueurs [Account of the great experiment on equilibrium in liquids] (1648)
* Traité du triangle arithmétique [Treatise on the arithmetical triangle] (written ; publ. 1665)
* [The provincial letters] (1656–57)
* De l'Esprit géométrique [On the geometrical spirit] (1657 or 1658)
* Écrit sur la signature du formulaire (1661)
* Pensées [Thoughts] (incomplete at death; publ. 1670)
* Discours sur les passions de l'amour [Discourse on the Passion of Love] (forgery)
* On the Conversion of the Sinner''
See also
* Expected value
* Gambler's ruin
* List of pioneers in computer science
* List of works by Eugène Guillaume
* Pascal's barrel
* Pascal distribution
* Pascal's mugging
* Pascal's pyramid
* Pascal's simplex
* Problem of points
* Scientific revolution
Notes
References
Further reading
* Adamson, Donald. Blaise Pascal: Mathematician, Physicist, and Thinker about God (1995)
* Adamson, Donald. [https://books.google.com/books?idAMOQZfrZq-EC&pgPA405 "Pascal's Views on Mathematics and the Divine,"] Mathematics and the Divine: A Historical Study (eds. T. Koetsier and L. Bergmans. Amsterdam: Elsevier 2005), pp. 407–21.
* Broome, J.H. Pascal. London: E. Arnold, 1965.
*Compagnon, Antoine. A Summer with Pascal. Cambridge, Massachusetts: Belknap Press, 2024.
*Campe, Rüdiger, "Numbers and Calculation in Context: The Game of Decision - Pascal" in The Game of Probability. Literature and Calculation from Pascal and Kleist, Stanford University Press, 2012
*Davidson, Hugh M. Blaise Pascal. Boston: Twayne Publishers, 1983.
* }}
* Farrell, John. "Pascal and Power". Chapter seven of Paranoia and Modernity: Cervantes to Rousseau (Cornell UP, 2006).
* Goldmann, Lucien, The hidden God; a study of tragic vision in the Pensees of Pascal and the tragedies of Racine (original ed. 1955, Trans. Philip Thody. London: Routledge, 1964).
* Groothuis, Douglas. On Pascal. (Belmont: Wadsworth, 2002).
* Jordan, Jeff. ''Pascal's Wager: Pragmatic Arguments and Belief in God. Oxford: Clarendon Press, 2006.
* Landkildehus, Søren. "Kierkegaard and Pascal as kindred spirits in the Fight against Christendom" in Kierkegaard and the Renaissance and Modern Traditions (ed. Jon Stewart. Farnham: Ashgate Publishing, 2009).
* Mackie, John Leslie. The Miracle of Theism: Arguments for and against the Existence of God. (Oxford: Oxford University Press, 1982).
* Stafford Harry Northcote, Viscount Saint Cyres, Pascal (London: Smith, Elder & Company, 1909; New York: E. P. Dutton)
* Pugh, Anthony R. The Composition of Pascal's Apologia'', (University of Toronto Press, 1984).
*
*
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* Tobin, Paul. "The Rejection of Pascal's Wager: A Skeptic's Guide to the Bible and the Historical Jesus". authorsonline.co.uk, 2009.
External links
* [https://babel.hathitrust.org/cgi/pt?iducm.5325890510;view1up;seq=15 Oeuvres complètes, volume 2] (1858) Paris: Libraire de L Hachette et Cie, link from HathiTrust.
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*[http://emlo.bodleian.ox.ac.uk/blog/?catalogue=blaise-pascal The Correspondence of Blaise Pascal] in [http://emlo.bodleian.ox.ac.uk/home EMLO]
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* Pensées de Blaise Pascal. Renouard, Paris 1812 (2 vols.) ()
* [https://web.archive.org/web/20211103201931/http://metastudies.net/pmwiki/pmwiki.php?n=Site.TheModernEpochAndTheEmergenceOfTheModernCalculator#pascaline Discussion of the Pascaline, its history, mechanism, surviving examples, and modern replicas at http://things-that-count.net]
* [https://web.archive.org/web/20100217023133/http://www.users.csbsju.edu/~eknuth/pascal.html Pascal's Memorial] in orig. French/Latin and modern English, trans. Elizabeth T. Knuth.
* [https://web.archive.org/web/20060114173522/http://www.biblioweb.org/-PASCAL-Blaise-.html Biography, Bibliography.] (in French)
*
* [http://www.bbc.co.uk/programmes/b03b2v6m BBC Radio 4. In Our Time: Pascal.]
* [http://www-personal.umich.edu/~jbourj/money5.htm Blaise Pascal featured on the 500 French Franc banknote in 1977.]
* [http://www.intratext.com/Catalogo/Autori/Aut852.htm Blaise Pascal's works]: text, concordances and frequency lists
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* Etext of Pascal's [http://www.ccel.org/ccel/pascal/pensees.html Pensées] (English, in various formats)
* Etext of Pascal's [https://web.archive.org/web/20050428180845/http://oregonstate.edu/instruct/phl302/texts/pascal/letters-a.html Lettres Provinciales] (English)
* Etext of a number of Pascal's [http://www.bartleby.com/48/3/ minor works] (English translation) including, ''De l'Esprit géométrique and De l'Art de persuader''.
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Category:Scientists from Clermont-Ferrand | https://en.wikipedia.org/wiki/Blaise_Pascal | 2025-04-05T18:26:40.899584 |
4069 | Brittonic languages | , Brythonic,<!--please read the discussion page before altering--> British Celtic
| region = Wales, Cornwall, Brittany, in antiquity all of Great Britain and the Isle of Man, during the Early Middle Ages in Northern England and Southern Scotland and other western parts of Britain, Pictland, Galicia
| familycolor = Indo-European
| fam2 = Celtic
| fam3 = Nuclear Celtic
| fam4 = Insular Celtic
| protoname = Common Brittonic
| child1 = Western Brittonic
| child2 = Southwestern Brittonic
| child3 = Pictish
| glotto = bryt1239
| glottorefname = Brythonic
}}
The Brittonic languages (also Brythonic or British Celtic; ; ; and ) form one of the two branches of the Insular Celtic languages; the other is Goidelic. It comprises the extant languages Breton, Cornish, and Welsh. The name Brythonic was derived by Welsh Celticist John Rhys from the Welsh word , meaning Ancient Britons as opposed to an Anglo-Saxon or Gael.
The Brittonic languages derive from the Common Brittonic language, spoken throughout Great Britain during the Iron Age and Roman period. In the 5th and 6th centuries emigrating Britons also took Brittonic speech to the continent, most significantly in Brittany and Britonia. During the next few centuries, in much of Britain the language was replaced by Old English and Scottish Gaelic, with the remaining Common Brittonic language splitting into regional dialects, eventually evolving into Welsh, Cornish, Breton, Cumbric, and probably Pictish. Welsh and Breton continue to be spoken as native languages, while a revival in Cornish has led to an increase in speakers of that language. Cumbric and Pictish are extinct, having been replaced by Goidelic and Anglic speech. The Isle of Man and Orkney may also have originally spoken a Brittonic language, but this was later supplanted by Goidelic on the Isle of Man and Norse on Orkney. There is also a community of Brittonic language speakers in (the Welsh settlement in Patagonia).
Name
The names "Brittonic" and "Brythonic" are scholarly conventions referring to the Celtic languages of Britain and to the ancestral language they originated from, designated Common Brittonic, in contrast to the Goidelic languages originating in Ireland. Both were created in the 19th century to avoid the ambiguity of earlier terms such as "British" and "Cymric". "Brythonic" was coined in 1879 by the Celticist John Rhys from the Welsh word . "Brittonic", derived from "Briton" and also earlier spelled "Britonic" and "Britonnic", emerged later in the 19th century. "Brittonic" became more prominent through the 20th century, and was used in Kenneth H. Jackson's highly influential 1953 work on the topic, Language and History in Early Britain. Jackson noted by that time that "Brythonic" had become a dated term: "of late there has been an increasing tendency to use Brittonic instead."
Comparable historical terms include the Medieval Latin and and the Welsh .
An early written reference to the British Isles may derive from the works of the Greek explorer Pytheas of Massalia; later Greek writers such as Diodorus of Sicily and Strabo who quote Pytheas' use of variants such as (), "The Britannic [land, island]", and (), "Britannic islands", with being a Celtic word that might mean 'painted ones' or 'tattooed folk', referring to body decoration.EvidenceKnowledge of the Brittonic languages comes from a variety of sources. The early language's information is obtained from coins, inscriptions, and comments by classical writers as well as place names and personal names recorded by them. For later languages, there is information from medieval writers and modern native speakers, together with place names. The names recorded in the Roman period are given in Rivet and Smith.Characteristics
The Brittonic branch is also referred to as P-Celtic because linguistic reconstruction of the Brittonic reflex of the Proto-Indo-European phoneme is p as opposed to Goidelic k. Such nomenclature usually implies acceptance of the P-Celtic and Q-Celtic hypothesis rather than the Insular Celtic hypothesis because the term includes certain Continental Celtic languages as well.
Other major characteristics include:
* The retention of the Proto-Celtic sequences and , which mostly result from the Proto-Indo-European syllabic nasals.
* Celtic (written u in Latin texts and ou in Greek) became gw- in initial position, -w- internally, whereas in Gaelic it is f- in initial position and disappears internally:
** Proto-Celtic 'white, fair' became Welsh (masculine), (feminine), Cornish , Breton . Contrast Irish 'fair'.
** Proto-Celtic 'servant, young man' became Welsh, Cornish, and Breton . Contrast Middle Irish .
Initial s-:
* Initial s- followed by a vowel was changed to h-:
** Welsh 'old', 'long', 'similar'
** Cornish 'ancient', 'long', 'similar'
** Breton 'ancient', 'long', 'similar'
** Contrast Irish 'old', 'long', 'similarity'
* Initial s- was lost before , and :
** became Welsh , Cornish and Breton 'smooth'. Contrast Irish 'smooth, slimy'
** became Welsh , Cornish , and Breton 'marrow'. Contrast Irish
* The initial clusters sp-, sr-, sw- became f-, fr-, chw-:
** became Welsh 'ankle', Cornish 'shank, lower leg' and Breton 'ankle'. Contrast Old Irish 'heel, ankle'
** 'nostril' became Welsh , Cornish and Breton . Contrast Irish
** 'you' (plural) became Welsh , Cornish and Breton . Contrast Old Irish
Lenition:
* Voiceless plosives become voiced plosives in intervocalic position.
** d , g , b
** Contrast Irish th, ch, ph
* Voiced plosives , (later or , then lost in Welsh and Cornish; remained as in Breton), , and became soft spirants in an intervocalic position and before liquids:
** Welsh ,
** Cornish ,
** Breton , ,
** Contrast Irish dh, gh, bh, mh
Voiceless spirants:
* Geminated voiceless plosives transformed into spirants; (pp), (cc), (tt) became (later ), (ch/c'h), (th/zh) before a vowel or liquid:
** > Breton , Cornish , Welsh , 'tree trunk'
** > Breton , Cornish , Welsh , 'cat' vs. Irish
** > Breton , Cornish , Welsh , 'cheek'
* Voiceless stops become spirants after liquids:
** 'bear' > Welsh/Cornish , Breton , compare Old Irish
Nasal assimilation:
* Voiced stops were assimilated to a preceding nasal:
* Brittonic retains original nasals before -t and -k, whereas Goidelic alters -nt to -d, and -nk to -g:
** Breton 'hundred' vs. Irish ; Breton '[personification of] Death', Irish 'die'
Classification
The family tree of the Brittonic languages is as follows:
*Common Brittonic
**Western Brittonic
***Cumbric
***Welsh
**Southwestern Brittonic
***Cornish
***Breton
Brittonic languages in use today are Welsh, Cornish and Breton. Welsh and Breton have been spoken continuously since they formed. For all practical purposes Cornish died out during the 18th or 19th century, but a revival movement has more recently created small numbers of new speakers. Also notable are the extinct language Cumbric, and possibly the extinct Pictish. One view, advanced in the 1950s and based on apparently unintelligible ogham inscriptions, was that the Picts may have also used a non-Indo-European language. This view, while attracting broad popular appeal, has virtually no following in contemporary linguistic scholarship.
History and origins
]]
The modern Brittonic languages are generally considered to all derive from a common ancestral language termed Brittonic, British, Common Brittonic, Old Brittonic or Proto-Brittonic, which is thought to have developed from Proto-Celtic or early Insular Celtic by the 6th century BC.
A major archaeogenetics study uncovered a migration into southern Britain in the middle to late Bronze Age, during the 500-year period 1,300–800 BC. The newcomers were genetically most similar to ancient individuals from Gaul. but not northern Britain.
Brittonic languages were probably spoken before the Roman invasion throughout most of Great Britain, though the Isle of Man later had a Goidelic language, Manx. During the period of the Roman occupation of what is now England and Wales (AD 43 to ), Common Brittonic borrowed a large stock of Latin words, both for concepts unfamiliar in the pre-urban society of Celtic Britain such as urbanization and new tactics of warfare, as well as for rather more mundane words which displaced native terms (most notably, the word for 'fish' in all the Brittonic languages derives from the Latin rather than the native – which may survive, however, in the Welsh name of the River Usk, ). Approximately 800 of these Latin loan-words have survived in the three modern Brittonic languages. Pictish may have resisted Latin influence to a greater extent than the other Brittonic languages.
It is probable that at the start of the Post-Roman period, Common Brittonic was differentiated into at least two major dialect groups – Southwestern and Western. (Additional dialects have also been posited, but have left little or no evidence, such as an Eastern Brittonic spoken in what is now the East of England.) Between the end of the Roman occupation and the mid-6th century, the two dialects began to diverge into recognizably separate varieties, the Western into Cumbric and Welsh, and the Southwestern into Cornish and its closely related sister language Breton, which was carried to continental Armorica. Jackson showed that a few of the dialect distinctions between West and Southwest Brittonic go back a long way. New divergencies began around AD 500 but other changes that were shared occurred in the 6th century. Other common changes occurred in the 7th century onward and are possibly due to inherent tendencies. Thus the concept of a Common Brittonic language ends by AD 600. Substantial numbers of Britons certainly remained in the expanding area controlled by Anglo-Saxons, but over the fifth and sixth centuries they mostly adopted the Old English language and culture. Brittonic elements found in England include and for 'hill', while some such as co[o]mb[e] (from ) for 'small deep valley' and tor for 'hill, rocky headland' are examples of Brittonic words that were borrowed into English. Others reflect the presence of Britons such as Dumbarton – from the Scottish Gaelic meaning 'Fort of the Britons', and Walton meaning (in Anglo-Saxon) a 'settlement' where the 'Britons' still lived.
The number of Celtic river names in England generally increases from east to west, a map showing these being given by Jackson. These include Avon, Chew, Frome, Axe, Brue and Exe, but also river names containing the elements der-/dar-/dur- and -went e.g. Derwent, Darwen, Deer, Adur, Dour, Darent, and Went. These names exhibit multiple different Celtic roots. One is * 'water' (Breton , Cumbric , Welsh ), also found in the place-name Dover (attested in the Roman period as ); this is the source of rivers named Dour. Another is 'oak' or 'true' (Bret. , Cumb. , W. ), coupled with two agent suffixes, and ; this is the origin of Derwent, Darent, and Darwen (attested in the Roman period as ). The final root to be examined is . In Roman Britain, there were three tribal capitals named (modern Winchester, Caerwent, and Caistor St Edmunds), whose meaning was 'place, town'.
Brittonicisms in English
Some, including J. R. R. Tolkien, have argued that Celtic has acted as a substrate to English for both the lexicon and syntax. It is generally accepted that Brittonic effects on English are lexically few, aside from toponyms, consisting of a small number of domestic and geographical words, which "may" include bin, brock, carr, comb, crag and tor. Another legacy may be the sheep-counting system yan tan tethera in the north, in the traditionally Celtic areas of England such as Cumbria. Several words of Cornish origin are still in use in English as mining-related terms, including costean, gunnies, and vug.
Those who argue against the theory of a more significant Brittonic influence than is widely accepted point out that many toponyms have no semantic continuation from the Brittonic language. A notable example is Avon which comes from the Celtic term for river or the Welsh term for river, , but was used by the English as a personal name. and the name of the river Trent simply comes from the Welsh word for a 'trespasser' (figuratively suggesting 'overflowing river').
Scholars supporting a Brittonic substrate in English argue that the use of periphrastic constructions (using auxiliary verbs such as do and be in the continuous/progressive) of the English verb, which is more widespread than in the other Germanic languages, is traceable to Brittonic influence. Others, however, find this unlikely since many of these forms are only attested in the later Middle English period; these scholars claim a native English development rather than Celtic influence. Ian G. Roberts postulates Northern Germanic influence, despite such constructions not existing in Norse. Literary Welsh has the simple present 'I love' and the present stative (al. continuous/progressive) 'I am loving', where the Brittonic syntax is partly mirrored in English. (However, English I am loving comes from older I am a-loving, from still older 'I am in the process of loving'). In the Germanic sister languages of English, there is only one form, for example in German, though in colloquial usage in some German dialects, a progressive aspect form has evolved which is formally similar to those found in Celtic languages, and somewhat less similar to the Modern English form, e.g. 'I am working' is , literally: 'I am on the working'. The same structure is also found in modern Dutch (), alongside other structures (e.g. , lit. 'I sit to working'). These parallel developments suggest that the English progressive is not necessarily due to Celtic influence; moreover, the native English development of the structure can be traced over 1000 years and more of English literature.
Some researchers (Filppula, et al., 2001) argue that other elements of English syntax reflect Brittonic influences. For instance, in English tag questions, the form of the tag depends on the verb form in the main statement (''aren't I?, isn't he?, won't we?'', etc.). The German and the French , by contrast, are fixed forms which can be used with almost any main statement. It has been claimed that the English system has been borrowed from Brittonic, since Welsh tag questions vary in almost exactly the same way.<ref name"ecec" /><ref name"Gelderen" />Brittonic effect on the Goidelic languagesFar more notable, but less well known, are Brittonic influences on Scottish Gaelic, though Scottish and Irish Gaelic, with their wider range of preposition-based periphrastic constructions, suggest that such constructions descend from their common Celtic heritage. Scottish Gaelic contains several P-Celtic loanwords, but, as there is a far greater overlap in terms of Celtic vocabulary than with English, it is not always possible to disentangle P- and Q-Celtic words. However, some common words such as Welsh , Cumbric are particularly evident.
The Brittonic influence on Scots Gaelic is often indicated by considering Irish language usage, which is not likely to have been influenced so much by Brittonic. In particular, the word (anglicised as "strath") is a native Goidelic word, but its usage appears to have been modified by the Welsh cognate whose meaning is slightly different. The effect on Irish has been the loan from British of many Latin-derived words. This has been associated with the Christianisation of Ireland from Britain.
References
Sources
*
*
*
*
*
*
*
*
*
*
External links
Category:Iron Age Britain
Category:Ancient Britain | https://en.wikipedia.org/wiki/Brittonic_languages | 2025-04-05T18:26:40.969684 |
4071 | Bronski Beat | | occupation | years_active 1983–1995, 2016–2018
| label = London Records
| associated_acts =
*The Communards
*Jimmy Somerville
| website | current_members
| past_members =
* Steve Bronski
* Jimmy Somerville
* Larry Steinbachek
* Stephen Granville
* John Foster
* Jonathan Hellyer
* Richard Coles
* Ian Donaldson
}}
<!-- British grammar typically treats collective nouns as plurals -->
Bronski Beat were a British synth-pop band formed in 1983 in London, England. The initial lineup, which recorded the majority of their hits, consisted of Scottish musicians Jimmy Somerville (vocals) and Steve Bronski (keyboards, percussion) and English musician Larry Steinbachek (keyboards, percussion). Simon Davolls contributed backing vocals to many songs. Throughout the band's career, Bronski was the only member to appear in every lineup.
Bronski Beat achieved success in the mid-1980s, particularly with the 1984 single "Smalltown Boy", from their debut album, The Age of Consent. "Smalltown Boy" was their only US Billboard Hot 100 single. All members of the band were openly gay and their songs reflected this, often containing political commentary on gay issues. Somerville left Bronski Beat in 1985 and went on to have success as lead singer of the Communards and as a solo artist. He was replaced by vocalist John Foster, with whom the band continued to have hits in the UK and Europe through 1986. Foster left Bronski Beat after their second album, and the band were joined by Jonathan Hellyer before dissolving in 1995.
Steve Bronski revived the band in 2016, recording new material with 1990s member Ian Donaldson. Steinbachek died later that year; and Larry Steinbachek (from Southend, Essex)<!-- cites para -->
Bronski Beat signed a recording contract with London Records in 1984 after doing only nine live gigs. The band's debut single, "Smalltown Boy", about a gay teenager leaving his family and fleeing his home town, was a hit, peaking at No 3 in the UK Singles Chart, and topping charts in Belgium and the Netherlands. The single was accompanied by a promotional video directed by Bernard Rose, showing Somerville trying to befriend an attractive diver at a swimming pool, then being attacked by the diver's homophobic associates, being returned to his family by the police and having to leave home. (The police officer was played by Colin Bell, then the marketing manager of London Records.) "Smalltown Boy" reached 48 in the U.S. chart and peaked at 8 in Australia.
The follow-up single, "Why?", adopted a hi-NRG sound and was more lyrically focused on anti-gay prejudice. It also achieved Top 10 status in the UK, reaching 6, This event is featured in the film Pride.
The third single, released before Christmas 1984, was a revival of "It Ain't Necessarily So", the George and Ira Gershwin classic (from Porgy and Bess). The song questions the accuracy of biblical tales. It also reached the UK Top 20. Although the original had been one of Marc Almond's all-time favourite songs, he had never read the lyrics and thus incorrectly sang "What’ll it be, what’ll it be, you and me" instead of "Falling free, falling free, falling free" on the finished record.
The band and their producer Mike Thorne had gone back into the studio in early 1985 to record a new single, "Run from Love", and PolyGram (London Records' parent company at that time) had pressed a number of promo singles and 12" versions of the song and sent them to radio and record stores in the UK. However, the single was shelved as tensions in the band, both personal and political, resulted in Somerville leaving Bronski Beat in the summer of that year.
"Run from Love" was subsequently released in remix form on the Bronski Beat album Hundreds & Thousands, a collection of mostly remixes (LP) and B-sides (as bonus tracks on the CD version) as well as the hit "I Feel Love". Somerville went on to form the Communards with Richard Coles while the remaining members of Bronski Beat searched for a new vocalist.
1985–1995: Somerville's departure, John Foster and Jonathan Hellyer eras
Bronski Beat recruited John Foster as Somerville's replacement (Foster is credited as "Jon Jon"). A single, "Hit That Perfect Beat", was released in November 1985, reaching 3 in the UK. Bronski died on 7 December 2021, at the age of 61, in a Central London flat fire.Members Founding members
* Steve Bronski – keyboards, synthesizers, programming, percussion, acoustic guitar, vocals <small>(1983–1995, 2016–2018; died 2021)</small>
* Jimmy Somerville – vocals, tambourine <small>(1983–1985, 1987)</small>
* Larry Steinbachek – keyboards, synthesizers, percussion <small>(1983–1995; died 2016)</small>
Other members
* Richard Coles – saxophone, clarinet <small>(1983–1984, 1985)</small>
* John Foster – vocals <small>(1985–1987, 1994–1995)</small>
* Jonathan Hellyer – vocals <small>(1989–1994, 1995)</small>
* Ian Donaldson – keyboards, synthesizers, programming <small>(1994–1995, 2016–2018)</small>
* Stephen Granville – vocals <small>(2016–2018)</small>
Awards and nominations
{| class=wikitable
|-
! Year !! Awards !! Work !! Category !! Result !! Ref.
|-
| rowspan=6|1984
| NME Awards
| rowspan=3|Themselves
| rowspan=2|Best New Act
|
|-
| rowspan=5|Smash Hits Poll Winners Party
|
|-
| Best Group
|
|-
| The Age of Consent
| Best LP
|
|-
| "Why?"
| rowspan=2|Best Single
|
|-
| rowspan=2|"Smalltown Boy"
|
|-
| rowspan="3" | 1985
| rowspan="2" | Brit Awards
| Best British Single
|
|-
| Themselves
| Best British Group
|
|-
| rowspan=2|Billboard Music Awards
| "Smalltown Boy"
| Top Dance Play Single
|
|
|-
| rowspan=2|1986
| Themselves
| Top Dance Club Play Artist
|
|
|-
|Ivor Novello Awards
| "Hit That Perfect Beat"
| The Best Film Theme or Song
|
|-
| 2017
| Gay Music Chart Awards
| "Smalltown Boy" <small>(Arnaud Rebotini Remix)</small>
| Best Original Soundtrack
|
|
Discography
;Studio albums
*1984: The Age of Consent
*1986: Truthdare Doubledare
*1987: Out & About
*1995: Rainbow Nation
*2017: The Age of Reason
See also
* Jimmy Somerville discography
References
External links
*
*
*
Category:Bronski Beat
Category:English synth-pop groups
Category:British hi-NRG groups
Category:English disco groups
Category:English musical trios
Category:Dance-pop groups
Category:English electronic music groups
Category:LGBTQ-themed musical groups
Category:London Records artists
Category:Musical groups established in 1983
Category:Musical groups disestablished in 1995
Category:Musical groups reestablished in 2016
Category:Musical groups disestablished in 2018
Category:Musical groups from the London Borough of Lambeth
Category:1983 establishments in England
Category:1995 disestablishments in England
Category:2018 disestablishments in England | https://en.wikipedia.org/wiki/Bronski_Beat | 2025-04-05T18:26:40.980038 |
4074 | Barrel (disambiguation) | A barrel is a cylindrical container, traditionally made with wooden material.
Barrel may also refer to:
BARREL (Balloon Array for RBSP Relativistic Electron Losses), a NASA mission
Barrel (album), a 1970 album by Lee Michaels
Barrel (horology), a watch component
Barrel (unit), several units of volume
Barrel (wine), for fermenting or ageing wine
Barrel (fastener), a simple hinge consisting of a barrel and a pivot
Gun barrel
the venturi of a carburetor
a component of a clarinet
a component of a snorkel
a tank in Harry Turtledove's books; see Victoria: An Empire Under the Sun
the outside of a low voltage DC connector
"The Barrel", a song by Aldous Harding from her 2019 album Designer
See also
Barrel roll (disambiguation)
Barrell, a surname
Barrow (disambiguation)
Beryl (disambiguation)
Keg
sl:Sod | https://en.wikipedia.org/wiki/Barrel_(disambiguation) | 2025-04-05T18:26:40.981696 |
4077 | Binary prefix | A binary prefix is a unit prefix that indicates a multiple of a unit of measurement by an integer power of two. The most commonly used binary prefixes are kibi (symbol Ki, meaning ), mebi (}}), and gibi (}}). They are most often used in information technology as multipliers of bit and byte, when expressing the capacity of storage devices or the size of computer files.
The binary prefixes "kibi", "mebi", etc. were defined in 1999 by the International Electrotechnical Commission (IEC), in the IEC 60027-2 standard (Amendment 2). They were meant to replace the metric (SI) decimal power prefixes, such as "kilo" (), "mega" (}}) and "giga" (}}), Comparison of binary and decimal prefixes
The relative difference between the values in the binary and decimal interpretations increases, when using the SI prefixes as the base, from 2.4% for kilo to nearly 27% for the quetta prefix.
{| class"wikitable" style"margin: auto;"
|- style="background:#ccf;"
! colspan="2" | Prefix
! colspan="2" | Binary ÷ Decimal
! colspan="2" | Decimal ÷ Binary
|- id="binary vs decimal kilo-"
| kilo || kibi
| 1.024 (+2.4%) || class"nowrap" |<div style"display:inline-block;width:102.4px;background:#000"><div style="display:inline-block;width:100px;background:#666;"> </div></div>
| 0.9766 (−2.3%) || class"nowrap" | <div style"display:inline-block;width:100px;background:#ccc;"><div style="display:inline-block;width:97.7px;background:#666;"> </div></div>
|- id="binary vs decimal mega-"
| mega || mebi
| 1.049 (+4.9%) || class"nowrap" | <div style"display:inline-block;width:104.9px;background:#000;"><div style="display:inline-block;width:100px;background:#666;"> </div></div>
| 0.9537 (−4.6%) || class"nowrap" | <div style"display:inline-block;width:100px;background:#ccc;"><div style="display:inline-block;width:95.4px;background:#666;"> </div></div>
|- id="binary vs decimal giga-"
| giga || gibi
| 1.074 (+7.4%) || class"nowrap" | <div style"display:inline-block;width:107.4px;background:#000;"><div style="display:inline-block;width:100px;background:#666;"> </div></div>
| 0.9313 (−6.9%) || class"nowrap" | <div style"display:inline-block;width:100px;background:#ccc;"><div style="display:inline-block;width:93.1px;background:#666;"> </div></div>
|- id="binary vs decimal tera-"
| tera || tebi
| 1.100 (+10.0%) || class"nowrap" | <div style"display:inline-block;width:110.0px;background:#000;"><div style="display:inline-block;width:100px;background:#666;"> </div></div>
| 0.9095 (−9.1%) || class"nowrap" | <div style"display:inline-block;width:100px;background:#ccc;"><div style="display:inline-block;width:90.9px;background:#666;"> </div></div>
|- id="binary vs decimal peta-"
| peta || pebi
| 1.126 (+12.6%) || class"nowrap" | <div style"display:inline-block;width:112.6px;background:#000;"><div style="display:inline-block;width:100px;background:#666;"> </div></div>
| 0.8882 (−11.2%) || class"nowrap" | <div style"display:inline-block;width:100px;background:#ccc;"><div style="display:inline-block;width:88.8px;background:#666;"> </div></div>
|- id="binary vs decimal exa-"
| exa || exbi
| 1.153 (+15.3%) || class"nowrap" | <div style"display:inline-block;width:115.3px;background:#000;"><div style="display:inline-block;width:100px;background:#666;"> </div></div>
| 0.8674 (−13.3%) || class"nowrap" | <div style"display:inline-block;width:100px;background:#ccc;"><div style="display:inline-block;width:86.7px;background:#666;"> </div></div>
|- id="binary vs decimal zetta-"
| zetta || zebi
| 1.181 (+18.1%) || class"nowrap" | <div style"display:inline-block;width:118.1px;background:#000;"><div style="display:inline-block;width:100px;background:#666;"> </div></div>
| 0.8470 (−15.3%) || class"nowrap" | <div style"display:inline-block;width:100px;background:#ccc;"><div style="display:inline-block;width:84.7px;background:#666;"> </div></div>
|- id="binary vs decimal yotta-"
| yotta || yobi
| 1.209 (+20.9%) || class"nowrap" | <div style"display:inline-block;width:120.9px;background:#000;"><div style="display:inline-block;width:100px;background:#666;"> </div></div>
| 0.8272 (−17.3%) || class"nowrap" | <div style"display:inline-block;width:100px;background:#ccc;"><div style="display:inline-block;width:82.7px;background:#666;"> </div></div>
|- id="binary vs decimal yotta-"
| ronna || robi
| 1.238 (+23.8%) || class"nowrap" | <div style"display:inline-block;width:123.8px;background:#000;"><div style="display:inline-block;width:100px;background:#666;"> </div></div>
| 0.8078 (−19.2%) || class"nowrap" | <div style"display:inline-block;width:100px;background:#ccc;"><div style="display:inline-block;width:80.8px;background:#666;"> </div></div>
|- id="binary vs decimal yotta-"
| quetta || quebi
| 1.268 (+26.8%) || class"nowrap" | <div style"display:inline-block;width:126.8px;background:#000;"><div style="display:inline-block;width:100px;background:#666;"> </div></div>
| 0.7889 (−21.1%) || class"nowrap" | <div style"display:inline-block;width:100px;background:#ccc;"><div style="display:inline-block;width:78.9px;background:#666;"> </div></div>
|}
History
Early prefixes
The original metric system adopted by France in 1795 included two binary prefixes named double- (2×) and demi- (×). Ubuntu, and Debian, have been updated to use "MB" and "GB" to denote decimal prefixes when displaying disk drive capacities and file sizes. Some manufacturers, such as Seagate Technology, have released recommendations stating that properly-written software and documentation should specify clearly whether prefixes such as "K", "M", or "G" mean binary or decimal multipliers.
The 5.25-inch diskette sold with the IBM PC AT could hold bytes, and thus was marketed as "1200 KB" with the binary sense of "KB". However, the capacity was also quoted "1.2 MB", which was a hybrid decimal and binary notation, since the "M" meant 1000 × 1024. The precise value was (decimal) or (binary).
The 5.25-inch Apple Disk II had 256 bytes per sector, 13 sectors per track, 35 tracks per side, or a total capacity of bytes. It was later upgraded to 16 sectors per track, giving a total of = bytes, which was described as "140KB" using the binary sense of "K".
The most recent version of the physical hardware, the "3.5-inch diskette" cartridge, had 720 512-byte blocks (single-sided). Since two blocks comprised 1024 bytes, the capacity was quoted "360 KB", with the binary sense of "K". On the other hand, the quoted capacity of "1.44 MB" of the High Density ("HD") version was again a hybrid decimal and binary notation, since it meant 1440 pairs of 512-byte sectors, or . Some operating systems displayed the capacity of those disks using the binary sense of "MB", as "1.4 MB" (which would be ≈ ). User complaints forced both Apple and Microsoft <!-- and many of the IEEE technical journals allow the authors to select the units in their papers.-->
The International Bureau of Weights and Measures (BIPM), which maintains the International System of Units (SI), expressly prohibits the use of SI prefixes to denote binary multiples, and recommends the use of the IEC prefixes as an alternative since units of information are not included in the SI.
Other uses
While the binary prefixes are predominantly used with units of data, bits and bytes, they may be used with other unit of measure. For example, in signal processing it may be convenient to use a binary prefix with the unit of frequency, hertz (Hz), to produce a unit such as the kibihertz (KiHz), which is equal to .
}}
Further reading
* – An introduction to binary prefixes
*
*
* —a 1996–1999 paper on bits, bytes, prefixes and symbols
*
* —Another description of binary prefixes
* —White-paper on the controversy over drive capacities External links
* [https://alexey.chernyak.id.au/prefBin.xhtml A summary of the organizations, software, and so on that have implemented the new binary prefixes]
Category:Measurement
Category:Naming conventions
Category:Numeral systems
Category:Units of information | https://en.wikipedia.org/wiki/Binary_prefix | 2025-04-05T18:26:41.033421 |
4078 | National Baseball Hall of Fame and Museum | | former_name | established (Baseball)<br />Dedicated June 12, 1939
| dissolved = <!-- -->
| location = Cooperstown, New York, U.S.
| type = Professional sports hall of fame
| accreditation | key_holdings
| collections =
| founder = Stephen Carlton Clark
| executive_director | leader_type
| leader | director
| president Josh Rawitch (since 2021)
| ceo | chairperson Jane Forbes Clark Dale Petroskey became the organization's president in 1999. In 2002, the Hall launched Baseball as America, a traveling exhibit that toured ten American museums over six years. The Hall of Fame has since also sponsored educational programming on the Internet to bring the Hall of Fame to schoolchildren who might not visit. The Hall and Museum completed a series of renovations in spring 2005. The Hall of Fame also presents an annual exhibit at FanFest at the Major League Baseball All-Star Game.Inductees
Among baseball fans, "Hall of Fame" means not only the museum and facility in Cooperstown, New York, but the pantheon of players, managers, umpires, executives, and pioneers who have been inducted into the Hall. The first five men elected were Ty Cobb, Babe Ruth, Honus Wagner, Christy Mathewson and Walter Johnson, chosen in 1936; roughly 20 more were selected before the entire group was inducted at the Hall's 1939 opening. , 351 people had been elected to the Hall of Fame, including 278 former professional players, 23 managers, 10 umpires, and 40 pioneers, executives, and organizers. 119 members of the Hall of Fame have been inducted posthumously, including four who died after their selection was announced. Of the 39 members primarily recognized for their contributions to Negro league baseball, 31 were inducted posthumously, including all 26 selected since the 1990s. The Hall of Fame includes one woman, baseball executive Effa Manley.
The newest members of the Hall of Fame as of January 21, 2025, are Dick Allen, Dave Parker, CC Sabathia, Ichiro Suzuki, and Billy Wagner.
In 2019, former Yankees closer Mariano Rivera became the first player to be elected unanimously on the writers' ballot. Derek Jeter, Marvin Miller, Ted Simmons, and Larry Walker were to be inducted in 2020, but their induction ceremony was delayed by the COVID-19 pandemic until September 8, 2021. The ceremony was open to the public, as COVID restrictions had been lifted.
Selection process
Players are currently inducted into the Hall of Fame through election by either the Baseball Writers' Association of America (or BBWAA), or the Veterans Committee, which now consists of four subcommittees, each of which considers and votes for candidates from a separate era of baseball. Five years after retirement, any player with 10 years of major league experience who passes a screening committee (which removes from consideration players of clearly lesser qualification) is eligible to be elected by BBWAA members with 10 years' membership or more who also have been actively covering MLB at any time in the 10 years preceding the election (the latter requirement was added for the 2016 election). From a final ballot typically including 25–40 candidates, each writer may vote for up to 10 players; until the late 1950s, voters were advised to cast votes for the maximum 10 candidates. Any player named on 75% or more of all ballots cast is elected. A player who is named on fewer than 5% of ballots is dropped from future elections. In some instances, the screening committee had restored their names to later ballots, but in the mid-1990s, dropped players were made permanently ineligible for Hall of Fame consideration, even by the Veterans Committee. A 2001 change in the election procedures restored the eligibility of these dropped players; while their names will not appear on future BBWAA ballots, they may be considered by the Veterans Committee. Players receiving 5% or more of the votes but fewer than 75% are reconsidered annually until a maximum of ten years of eligibility (lowered from fifteen years for the 2015 election).
, Joe Cronin, Bill Dickey, Joe DiMaggio, Charlie Gehringer, Jimmie Foxx, and Hank Greenberg. All seven were inducted into the Hall of Fame.]]
Under special circumstances, certain players may be deemed eligible for induction even though they have not met all requirements. Addie Joss was elected in 1978, despite only playing nine seasons before he died of meningitis. Additionally, if an otherwise eligible player dies before his fifth year of retirement, then that player may be placed on the ballot at the first election at least six months after his death. Roberto Clemente set the precedent: the writers put him up for consideration after his death on New Year's Eve, 1972, and he was inducted in 1973.
The five-year waiting period was established in 1954 after an evolutionary process. In 1936 all players were eligible, including active ones. From the 1937 election until the 1945 election, there was no waiting period, so any retired player was eligible, but writers were discouraged from voting for current major leaguers. Since there was no formal rule preventing a writer from casting a ballot for an active player, the scribes did not always comply with the informal guideline; Joe DiMaggio received a vote in 1945, for example. From the 1946 election until the 1954 election, an official one-year waiting period was in effect. (DiMaggio, for example, retired after the 1951 season and was first eligible in the 1953 election.) The modern rule establishing a wait of five years was passed in 1954, although those who had already been eligible under the old rule were grandfathered into the ballot, thus permitting Joe DiMaggio to be elected within four years of his retirement.
Contrary to popular belief, no formal exception was made for Lou Gehrig (other than to hold a special one-man election for him): there was no waiting period at that time, and Gehrig met all other qualifications, so he would have been eligible for the next regular election after he retired during the 1939 season. However, the BBWAA decided to hold a special election at the 1939 Winter Meetings in Cincinnati, specifically to elect Gehrig (most likely because it was known that he was terminally ill, making it uncertain that he would live long enough to see another election). Nobody else was on that ballot, and the numerical results have never been made public. Since no elections were held in 1940 or 1941, the special election permitted Gehrig to enter the Hall while still alive.
If a player fails to be elected by the BBWAA within 10 years of his eligibility for election, he may be selected by the Veterans Committee. Following changes to the election process for that body made in 2010 and 2016, the Veterans Committee is now responsible for electing all otherwise eligible candidates who are not eligible for the BBWAA ballot — both long-retired players and non-playing personnel (managers, umpires, and executives). From 2011 to 2016, each candidate could be considered once every three years; now, the frequency depends on the era in which an individual made his greatest contributions. A more complete discussion of the new process is available below.
From 2008 to 2010, following changes made by the Hall in July 2007, the main Veterans Committee, then made up of living Hall of Famers, voted only on players whose careers began in 1943 or later. These changes also established three separate committees to select other figures:
*One committee voted on managers and umpires for induction in every even-numbered year. This committee voted only twice—in 2007 for induction in 2008 and in 2009 for induction in 2010.
*One committee voted on executives and builders for induction in every even-numbered year. This committee conducted its only two votes in the same years as the managers/umpires committee.
*The pre–World War II players committee was intended to vote every five years on players whose careers began in 1942 or earlier. It conducted its only vote as part of the election process for induction in 2009.
]]
Players of the Negro leagues have also been considered at various times, beginning in 1971. In 2005, the Hall completed a study on African American players between the late 19th century and the integration of the major leagues in 1947, and conducted a special election for such players in February 2006; seventeen figures from the Negro leagues were chosen in that election, in addition to the eighteen previously selected. Following the 2010 changes, Negro leagues figures were primarily considered for induction alongside other figures from the 1871–1946 era, called the "Pre-Integration Era" by the Hall; since 2016, Negro leagues figures are primarily considered alongside other figures from what the Hall calls the "Early Baseball" era (1871–1949).
Predictably, the selection process catalyzes endless debate among baseball fans over the merits of various candidates. Even players elected years ago remain the subjects of discussions as to whether they deserved election. For example, Bill James' 1994 book Whatever Happened to the Hall of Fame? goes into detail about who he believes does and does not belong in the Hall of Fame.
Non-induction of banned players
in 1913]]
The selection rules for the Baseball Hall of Fame were modified to prevent the induction of anyone on Baseball's "permanently ineligible" list. The most prominent former players to be affected are Pete Rose and "Shoeless Joe" Jackson—many others have been barred from participation in MLB, but none have Hall of Fame qualifications on the level of Jackson or Rose. Jackson and Rose were both banned from MLB for life for actions related to gambling on games involving their own teams.
Jackson was determined to have cooperated with those who conspired to intentionally lose the 1919 World Series, and for accepting payment for losing, although his actual level of culpability is fiercely debated. The ensuing Black Sox Scandal led directly to baseball's Rule 21, prominently posted in every clubhouse locker room, which mandates permanent banishment from MLB for having a gambling interest of any sort on a game in which a player, manager or umpire is directly involved.
Rose voluntarily accepted a permanent spot on the ineligible list in return for MLB's promise to make no official finding in relation to alleged betting on the Cincinnati Reds when he was their manager in the 1980s. No credible evidence has ever emerged to support allegations that Rose bet against his team and/or that his betting influenced his managerial decisions, nevertheless, the betting constituted a clear violation of the aforementioned Rule 21. After years of denial, Rose admitted that he bet on the Reds in his 2004 autobiography.
Baseball fans are deeply split on the issue of whether Rose and/or Jackson (now both deceased) should remain banned or have their punishments posthumously revoked. Writer Bill James, though he advocates Rose eventually making it into the Hall of Fame, compared the people who want to put Jackson in the Hall of Fame to "those women who show up at murder trials wanting to marry the cute murderer".
Changes to Veterans Committee process
The actions and composition of the Veterans Committee have been at times controversial, with occasional selections of contemporaries and teammates of the committee members over seemingly more worthy candidates.
In 2001, the Veterans Committee was reformed to comprise the living Hall of Fame members and other honorees. The revamped Committee held three elections, in 2003 and 2007, for both players and non-players, and in 2005 for players only. No individual was elected in that time, sparking criticism among some observers who expressed doubt whether the new Veterans Committee would ever elect a player. The Committee members, most of whom were Hall members, were accused of being reluctant to elect new candidates in the hope of heightening the value of their own selection. After no one was selected for the third consecutive election in 2007, Hall of Famer Mike Schmidt noted, "The same thing happens every year. The current members want to preserve the prestige as much as possible, and are unwilling to open the doors."
Eligibility
The eligibility criteria for Era Committee consideration differ between players, managers, and executives.
*Players: When a player is no longer eligible on the BBWAA ballot (either 15 years after retirement—five-year period and the 10 years after he first becomes eligible to appear on the BBWAA ballot or when the player is not eligible after earning less than five percent of the BBWAA ballot during a year), he will be considered by the respective committee.
**The Hall has not yet established a policy on when players who die while active or during the standard five-year waiting period for BBWAA eligibility will be eligible for committee consideration. As noted earlier, such players become eligible for the BBWAA ballot six months after their deaths.
*Managers and umpires who have served at least 10 seasons in that role are eligible five years after retirement, unless they are 65 or older, in which case the waiting period is six months.
*Executives are eligible five years after retirement, or upon reaching age 70. For those who meet the age cutoff, they are explicitly eligible for consideration regardless of their current position in an organization or their status as active or retired. Before the 2016 changes to the committee system, active executives 65 years or older were eligible for consideration.
with the Cincinnati Reds in 1961]]
with the Boston Red Sox in 1976]]
with the San Diego Padres ]]
Although the Hall always made the final decision on which logo was shown, until 2001 the Hall deferred to the wishes of players or managers whose careers were linked with multiple teams. Some examples of inductees associated with multiple teams are the following:
*Frank Robinson: Robinson chose to have the Baltimore Orioles cap displayed on his plaque, although he had played ten seasons with the Cincinnati Reds and six seasons with Baltimore. Robinson won four pennants and two World Series with the Orioles and one pennant with Cincinnati. His second World Series ring came in the 1970 World Series against the Reds. Robinson also won an MVP award while playing for each team.
*Catfish Hunter: Hunter chose not to have any logo on his cap when elected to the Hall of Fame in 1987. Hunter had success for both teams for which he played – the Kansas City/Oakland Athletics (his first ten seasons) and the New York Yankees (his final five seasons). Furthermore, both during and after his career he maintained good relations with both teams and their respective owners (Charles Finley and George Steinbrenner), and did not wish to slight either team by selecting the other.
*Nolan Ryan: Born and raised in Texas, Ryan entered the Hall in 1999 wearing a Texas Rangers cap on his plaque, although he spent only five seasons with the Rangers, while raised in the Houston area and having longer and more successful tenures with the Houston Astros (nine seasons, 1980–88 and his record-setting fifth career no-hitter) and California Angels (eight seasons, 1972–79 and the first four of his seven career no-hitters). Ryan's only championship was as a member of the New York Mets in 1969. Ryan finished his career with the Rangers, reaching his 5,000th strikeout and 300th win, and throwing the last two of his no-hitters. He had personally chosen the Rangers due to these figures as well as because Texas encompasses the city of Houston, thereby representing both teams. Despite this, his biography on the Hall's website lists his primary team as the Angels. Ryan later took ownership of the Rangers when they were sold to his Rangers Baseball Express group in 2010. He sold his Rangers interest in 2013. From 2014 to 2019, Nolan was in the Astros' front office as a special assistant. In 2020 Ryan discontinued his executive role with the Astros. The minor-league team in which he has an ownership interest, the Round Rock Express of Round Rock, Texas outside of Austin, will be the AAA franchise of the Texas Rangers.
*Reggie Jackson: Jackson chose to be depicted with a Yankees cap over an Athletics cap. As a member of the Kansas City/Oakland A's, Jackson played ten seasons (1967–75, '87), winning three World Series (1972, 1973, 1974) and the 1973 AL MVP Award. During his five years in New York (1977–81), Jackson won two World Series (1977–78), with his crowning achievement occurring during Game Six of the 1977 World Series, when he hit three home runs on consecutive pitches and earned his nickname "Mr. October".
*Carlton Fisk: Fisk went into the hall with a Boston Red Sox cap on his plaque in 2000 despite having played with the Chicago White Sox longer and posting more significant numbers with the White Sox. Fisk's choice of the Red Sox was likely due to his being a New England native, as well as his famous "Stay fair!" walk-off home run in Game Six of the 1975 World Series for which he is most associated.
*Sparky Anderson: Also in 2000, Anderson entered the Hall with a Cincinnati Reds cap on his plaque despite managing almost twice as many seasons with the Detroit Tigers (17 in Detroit; nine in Cincinnati). He chose the Reds to honor that team's former general manager Bob Howsam, who gave him his first major-league managing job. Anderson won two World Series with the Reds and one with the Tigers.
*Dave Winfield: Winfield had spent the most years in his career with the Yankees and had great success there, though he chose to go into the Hall as a member of the San Diego Padres due to his feud with Yankees owner George Steinbrenner.
In all of the above cases, the "primary team" is the team for which the inductee spent the largest portion of his career except for Ryan, whose primary team is listed as the Angels despite playing one fewer season for that team than for the Astros.
In 2001, the Hall of Fame decided to change the policy on cap logo selection, as a result of rumors that some teams were offering compensation, such as number retirement, money, or organizational jobs, in exchange for the cap designation. (For example, though Wade Boggs denied the claims, some media reports had said that his contract with the Tampa Bay Devil Rays required him to request depiction in the Hall of Fame as a Devil Ray.) The Hall decided that it would no longer defer to the inductee, though the player's wishes would be considered, when deciding on the logo to appear on the plaque. Newly elected members affected by the change include the following:
*Gary Carter: Inducted in 2003, Carter was the first player to be affected by the new policy. Carter won his only championship with the 1986 New York Mets, and wanted his induction plaque to depict him wearing a Mets cap, though he had spent twelve years (1974–84, 1992) with the Montreal Expos and five (1985–89) with the Mets. The Hall of Fame decided that Carter's impact on the Montreal franchise warranted depicting him with an Expos cap.
*Wade Boggs: Boggs's only title was as a member of the 1996 New York Yankees, for whom he played from 1993 to 1997, but his best career numbers were posted during his 11 years (1982–92) with the Boston Red Sox. Boggs would eventually be depicted wearing a Boston cap for his 2005 induction.
*Andre Dawson: Dawson's cap depicts him as a member of the Expos, his team for eleven years, despite his expressed preference to be shown as a member of the Chicago Cubs. While Dawson played only six years with the Cubs, five of his eight All-Star appearances were as a Cub, and his only MVP award came in his first year with the team in 1987.
*Tony La Russa: Manager La Russa chose not to have a logo after managing three teams over 33 years—the Chicago White Sox, Oakland Athletics, and St. Louis Cardinals. His greatest successes were with the A's (three pennants and a World Series title in 10 years) and Cardinals (three pennants and two World Series in 16 years). Nonetheless, La Russa felt that his induction to the Hall was due to his tenures with all three teams, and stated that not including a logo meant that "fans of all [three] clubs can celebrate this honor with me." La Russa's biography on the Hall's website lists his primary team as the Cardinals.
*Greg Maddux: Although Maddux had his greatest success while with the Atlanta Braves for 11 seasons, he had two stints with the Chicago Cubs for a total of 10 seasons, including the first seven of his MLB career. Maddux believed that both fanbases were equally important in his career, and so the cap on his plaque does not feature any logo. His biography on the Hall's website lists his primary team as the Mariners.
*Vladimir Guerrero: Guerrero played the majority of his career with the Montreal Expos, spending eight of his sixteen seasons with the team. However, he recorded the majority of his success during his time with the Angels, including five out of his nine All-Star selections, his MVP award, four out of his eight Silver Slugger awards, and all five of his playoff berths. Guerrero ultimately had an Angels logo on his plaque, becoming the only member of the team to have as such. His biography on the Hall's website lists his primary team as the Expos.
*Mike Mussina, who played 10 seasons with the Baltimore Orioles and eight seasons with the New York Yankees, decided to go into the Hall without a logo on his plaque, saying "I don't feel like I can pick one team over the other because they were both great to me. I did a lot in Baltimore and they gave me the chance and then in New York we went to the playoffs seven of eight years, and both teams were involved. To go in with no logo was the only decision I felt good about". Mussina's biography at the Hall lists his primary team as the Orioles.
*Roy Halladay was posthumously elected to the Hall on January 22, 2019, in his first year of eligibility, garnering 85.4 percent of the vote. Halladay was a six-time All-Star and won a Cy Young award with the Toronto Blue Jays from 1998 to 2009, and then was a two-time All-Star and won a Cy Young award with the Philadelphia Phillies over his final four seasons. He spent 12 of his 16 MLB seasons with the Blue Jays and earned 148 of his 203 victories with them, although his team never reached the playoffs. For the Phillies, he threw a perfect game and a postseason no-hitter, though his final two seasons were injury-plagued. Halladay was quoted as saying after he retired in 2013 that he'd like to enter the Hall of Fame as a Blue Jay, and he signed a ceremonial contract to retire with Toronto. However, he died in a plane crash on November 7, 2017. The Hall deferred to the wishes of his wife and sons who chose not to have a logo for his cap, which leaves Roberto Alomar as the sole Cooperstown inductee as a Blue Jay. Halladay's biography on the Hall's website lists his primary team as the Blue Jays.The museumSam Crane (who had played a decade in 19th century baseball before becoming a manager and sportswriter) had first approached the idea of making a memorial to the great players of the past in what was believed to have been the birthplace of baseball: Cooperstown, New York, but the idea did not muster much momentum until after his death in 1925. In 1934, the idea for establishing a Baseball Hall of Fame and Museum was devised by several individuals, such as Ford C. Frick (president of the National League) and Alexander Cleland, a Scottish immigrant who decided to serve as the first executive secretary for the Museum for the next seven years that worked with the interests of the Village and Major League Baseball. Stephen Carlton Clark (a Cooperstown native) paid for the construction of the museum, which was planned to open in 1939 to mark the "Centennial of Baseball", which included renovations to Doubleday Field. William Beattie served as the first curator of the museum.
According to the Hall of Fame, approximately 260,000 visitors enter the museum each year, and the running total has surpassed 17 million.
The Hall has seen a noticeable decrease in attendance since the mid-2010s. A 2013 story on ESPN.com about the village of Cooperstown and its relation to the game partially linked the reduced attendance with Cooperstown Dreams Park, a youth baseball complex about away in the town of Hartwick. The 22 fields at Dreams Park currently draw 17,000 players each summer for a week of intensive play; while the complex includes housing for the players, their parents and grandparents must stay elsewhere. According to the story,
<blockquote>Prior to Dreams Park, a room might be filled for a week by several sets of tourists. Now, that room will be taken by just one family for the week, and that family may only go into Cooperstown and the Hall of Fame once. While there are other contributing factors (the recession and high gas prices among them), the Hall's attendance has tumbled since Dreams Park opened. The Hall drew 383,000 visitors in 1999. It drew 262,000 last year.</blockquote>
First floor
Gallery in 2001. The central pillar is for the newest (2000) inductees at the time.]]
*Baseball at the Movies houses baseball movie memorabilia while a screen shows footage from those movies.
*The Bullpen Theater is the site of daily programming at the museum (trivia games, book discussions, etc.) and is decorated with pictures of famous relief pitchers.
*Inductee Row features images of Hall of Famers inducted from 1937 to 1939.
*The Perez-Steele Art Gallery features art of all media related to baseball. Dick Perez served as an artist for various projects at the National Baseball Hall of Fame and Museum for 20 years, starting in 1981
*The Plaque Gallery, the most recognizable site at the museum, contains induction plaques of all members. Since 2016, sculptor Tom Tsuchiya has been creating the bas-relief likeness plaques due to a commission from Matthews International.
*The Sandlot Kids Clubhouse has various interactive displays for young children.
*A theater area continually plays the popular Abbott and Costello routine "Who's on First?"
*Scribes and Mikemen honors BBWAA Career Excellence Award and Ford C. Frick Award winners with a photo display and has artifacts related to baseball writing and broadcasting. Floor-to-ceiling windows at the Scribes and Mikemen exhibit face an outdoor courtyard with statues of Johnny Podres and Roy Campanella (representing the Brooklyn Dodgers 1955 championship team), and an unnamed All-American Girls Professional Baseball League player. A Satchel Paige statue was unveiled and dedicated during the 2006 Induction Weekend.
*The Game is the major feature of the second floor. It is where the most artifacts are displayed. The Game is set up in a timeline format, starting with baseball's beginnings and culminating with the game we know today. There are several offshoots of this meandering timeline:
**Taking The Field (19th century baseball)
**Babe Ruth: His Life and Legend
**The Souls of the Game: Voices of Black Baseball (the Museum's newest permanent exhibit documenting pre-Negro leagues history through the present day)
**Diamond Dreams (women in baseball)
**¡Viva Baseball! (a bilingual exhibit, in English and Spanish, that celebrates baseball in Latin America)
*Whole New Ballgame opened in 2015 and is located in the Janetschek Gallery. This exhibit completes the timeline of baseball through the last 45 years into the game we know today. It features environmental video walls and new interactive elements to go along with artifacts from the Museum's collection.
*The '''Today's Game exhibit holds objects donated to the Hall of Fame from the past year or two.
Third floor
*Autumn Glory is devoted to post-season baseball and has, among other artifacts, a case of World Series rings from the 1900s to present.
*Hank Aaron: Chasing the Dream
*One for the Books''' tells the story of baseball's most cherished records through more than 200 artifacts. The exhibit allows fans to search records dating back through baseball history via an interactive Top Ten Tower while giving visitors a look at exciting moments throughout the years via a multimedia wall.
**BBWAA awards: Replicas of various awards distributed by the BBWAA at the end of each season, along with a list of past winners.
**A case dedicated to Ichiro Suzuki setting the major league record for base hits in a single season, with 262 in 2004, after George Sisler had held the record for 84 years with 257.
**An inductee database touch-screen computer with statistics for every inductee.
**Programs from every World Series.
*Sacred Ground is devoted entirely to ballparks and everything about them, especially the fan experience and the business of a ballpark. The centerpiece is a computer tour of three former ballparks: Boston's South End Grounds, Chicago's Comiskey Park, and Brooklyn's Ebbets Field.
*The Your Team Today exhibit is built like a baseball clubhouse, with 30 glass-enclosed locker stalls, one for each Major League franchise. In each stall there is a jersey and other items from the designated big league team, along with a brief team history.
Notable events
1982 unauthorized sales
A controversy erupted in 1982, when it emerged that some historic items given to the Hall had been sold on the collectibles market. The items had been lent to the Baseball Commissioner's office, gotten mixed up with other property owned by the Commissioner's office and employees of the office, and moved to the garage of Joe Reichler, an assistant to Commissioner Bowie Kuhn, who sold the items to resolve his personal financial difficulties. Under pressure from the New York Attorney General, the Commissioner's Office made reparations, but the negative publicity damaged the Hall of Fame's reputation, and made it more difficult for it to solicit donations.
2014 commemorative coins
In 2012, Congress passed and President Barack Obama signed a law ordering the United States Mint to produce and sell commemorative, non-circulating coins to benefit the private, non-profit Hall. The bill, , was introduced in the United States House of Representatives by Rep. Richard Hanna, a Republican from New York, and passed the House on October 26, 2011. The coins, which depict baseball gloves and balls, are the first concave designs produced by the Mint. The mintage included 50,000 gold coins, 400,000 silver coins, and 750,000 clad (nickel-copper) coins. The Mint released them on March 27, 2014, and the gold and silver editions quickly sold out. The Hall receives money from surcharges included in the sale price: a total of $9.5 million if all the coins are sold.
See also
*
*Award share
*
*Bob Feller Act of Valor Award
*Honor Rolls of Baseball (1946) (managers, executives, writers, umpires)
*List of Major League Baseball awards
*List of members of the Baseball Hall of Fame
*Negro Leagues Baseball Museum
*Nisei Baseball Research Project
References
External links
*
*[http://mlb.mlb.com/mlb/history/mlb_history_halloffame.jsp Hall of Fame History] from Major League Baseball
*[https://www.baseball-reference.com/awards/ Awards and Honors]. Baseball-Reference.com (including HOF inductees, Hall of Famer Batting and Pitching Stats, and HOF Voting Results for 1936 to present)
Baseball
Category:History of baseball in the United States
Category:Museums in Otsego County, New York
Category:Sports museums in New York (state)
Category:Sports organizations established in 1936
Category:Tourist attractions in Otsego County, New York
Category:1936 establishments in New York (state)
* | https://en.wikipedia.org/wiki/National_Baseball_Hall_of_Fame_and_Museum | 2025-04-05T18:26:41.059362 |
4079 | BPP (complexity) | <span lang"es" dir"ltr">In</span> computational complexity theory, a branch of computer science, bounded-error probabilistic polynomial time (BPP) is the class of decision problems solvable by a probabilistic Turing machine in polynomial time with an error probability bounded by 1/3 for all instances.
BPP is one of the largest practical classes of problems, meaning most problems of interest in BPP have efficient probabilistic algorithms that can be run quickly on real modern machines. BPP also contains P, the class of problems solvable in polynomial time with a deterministic machine, since a deterministic machine is a special case of a probabilistic machine.
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Informally, a problem is in BPP if there is an algorithm for it that has the following properties:
*It is allowed to flip coins and make random decisions
*It is guaranteed to run in polynomial time
*On any given run of the algorithm, it has a probability of at most 1/3 of giving the wrong answer, whether the answer is YES or NO.
Definition
A language L is in BPP if and only if there exists a probabilistic Turing machine M, such that
* M runs for polynomial time on all inputs
* For all x in L, M outputs 1 with probability greater than or equal to 2/3
* For all x not in L, M outputs 1 with probability less than or equal to 1/3
Unlike the complexity class ZPP, the machine M is required to run for polynomial time on all inputs, regardless of the outcome of the random coin flips.
Alternatively, BPP can be defined using only deterministic Turing machines. A language L is in BPP if and only if there exists a polynomial p and deterministic Turing machine M, such that
* M runs for polynomial time on all inputs
* For all x in L, the fraction of strings y of length p(|x|) which satisfy is greater than or equal to 2/3
* For all x not in L, the fraction of strings y of length p(|x|) which satisfy is less than or equal to 1/3
In this definition, the string y corresponds to the output of the random coin flips that the probabilistic Turing machine would have made. For some applications this definition is preferable since it does not mention probabilistic Turing machines.
In practice, an error probability of 1/3 might not be acceptable; however, the choice of 1/3 in the definition is arbitrary. Modifying the definition to use any constant between 0 and 1/2 (exclusive) in place of 1/3 would not change the resulting set BPP. For example, if one defined the class with the restriction that the algorithm can be wrong with probability at most 1/2<sup>100</sup>, this would result in the same class of problems. The error probability does not even have to be constant: the same class of problems is defined by allowing error as high as 1/2 − n<sup>−c</sup> on the one hand, or requiring error as small as 2<sup>−n<sup>c</sup></sup> on the other hand, where c is any positive constant, and n is the length of input. This flexibility in the choice of error probability is based on the idea of running an error-prone algorithm many times, and using the majority result of the runs to obtain a more accurate algorithm. The chance that the majority of the runs are wrong drops off exponentially as a consequence of the Chernoff bound.
Problems
{{unsolved|computer science|{{tmath|1\mathsf P \overset{?}{} \mathsf{BPP} }}}}
All problems in P are obviously also in BPP. However, many problems have been known to be in BPP but not known to be in P. The number of such problems is decreasing, and it is conjectured that P = BPP.
For a long time, one of the most famous problems known to be in BPP but not known to be in P was the problem of determining whether a given number is prime. However, in the 2002 paper PRIMES is in P, Manindra Agrawal and his students Neeraj Kayal and Nitin Saxena found a deterministic polynomial-time algorithm for this problem, thus showing that it is in P.
An important example of a problem in BPP (in fact in co-RP) still not known to be in P is polynomial identity testing, the problem of determining whether a polynomial is identically equal to the zero polynomial, when you have access to the value of the polynomial for any given input, but not to the coefficients. In other words, is there an assignment of values to the variables such that when a nonzero polynomial is evaluated on these values, the result is nonzero? It suffices to choose each variable's value uniformly at random from a finite subset of at least d values to achieve bounded error probability, where d is the total degree of the polynomial.
Related classes
If the access to randomness is removed from the definition of BPP, we get the complexity class P. In the definition of the class, if we replace the ordinary Turing machine with a quantum computer, we get the class BQP.
Adding postselection to BPP, or allowing computation paths to have different lengths, gives the class BPP<sub>path</sub>. BPP<sub>path</sub> is known to contain NP, and it is contained in its quantum counterpart PostBQP.
A Monte Carlo algorithm is a randomized algorithm which is likely to be correct. Problems in the class BPP have Monte Carlo algorithms with polynomial bounded running time. This is compared to a Las Vegas algorithm which is a randomized algorithm which either outputs the correct answer, or outputs "fail" with low probability. Las Vegas algorithms with polynomial bound running times are used to define the class ZPP. Alternatively, ZPP contains probabilistic algorithms that are always correct and have expected polynomial running time. This is weaker than saying it is a polynomial time algorithm, since it may run for super-polynomial time, but with very low probability.
Complexity-theoretic properties
, RP, co-RP, BQP, PP), which generalise P within PSPACE. It is unknown if any of these containments are strict.]]
, NP, co-NP, BPP, P/poly, PH, and PSPACE]]
It is known that BPP is closed under complement; that is, BPP co-BPP. BPP is low for itself, meaning that a BPP machine with the power to solve BPP problems instantly (a BPP oracle machine) is not any more powerful than the machine without this extra power. In symbols, BPP<sup>BPP</sup> BPP.
The relationship between BPP and NP is unknown: it is not known whether BPP is a subset of NP, NP is a subset of BPP or neither. If NP is contained in BPP, which is considered unlikely since it would imply practical solutions for NP-complete problems, then NP = RP and PH ⊆ BPP.
It is known that RP is a subset of BPP, and BPP is a subset of PP. It is not known whether those two are strict subsets, since we don't even know if P is a strict subset of PSPACE. BPP is contained in the second level of the polynomial hierarchy and therefore it is contained in PH. More precisely, the Sipser–Lautemann theorem states that <math>\mathsf{BPP} \subseteq \Sigma_2 \cap \Pi_2 </math>. As a result, P NP leads to P BPP since PH collapses to P in this case. Thus either P = BPP or P ≠ NP or both.
Adleman's theorem states that membership in any language in BPP can be determined by a family of polynomial-size Boolean circuits, which means BPP is contained in P/poly. Indeed, as a consequence of the proof of this fact, every BPP algorithm operating on inputs of bounded length can be derandomized into a deterministic algorithm using a fixed string of random bits. Finding this string may be expensive, however. Some weak separation results for Monte Carlo time classes were proven by , see also .
Closure properties
The class BPP is closed under complementation, union and intersection.
Relativization
Relative to oracles, we know that there exist oracles A and B, such that P<sup>A</sup> BPP<sup>A</sup> and P<sup>B</sup> ≠ BPP<sup>B</sup>. Moreover, relative to a random oracle with probability 1, P BPP and BPP is strictly contained in NP and co-NP.
There is even an oracle in which {{tmath|1\mathsf{BPP}\mathsf{EXP}^\mathsf{NP} }} (and hence {{tmath|1\mathsf{P<NP<BPPEXPNEXP} }}), which can be iteratively constructed as follows. For a fixed E<sup>NP</sup> (relativized) complete problem, the oracle will give correct answers with high probability if queried with the problem instance followed by a random string of length kn (n is instance length; k is an appropriate small constant). Start with n1. For every instance of the problem of length n fix oracle answers (see lemma below) to fix the instance output. Next, provide the instance outputs for queries consisting of the instance followed by kn-length string, and then treat output for queries of length ≤(k+1)n as fixed, and proceed with instances of length n+1.
}}, for every partially constructed oracle and input of length n, the output can be fixed by specifying 2<sup>O(n)</sup> oracle answers.}}
The lemma ensures that (for a large enough k), it is possible to do the construction while leaving enough strings for the relativized }} answers. Also, we can ensure that for the relativized }}, linear time suffices, even for function problems (if given a function oracle and linear output size) and with exponentially small (with linear exponent) error probability. Also, this construction is effective in that given an arbitrary oracle A we can arrange the oracle B to have <sup>A</sup>≤<sup>B</sup>}} and <sup><sup>A</sup></sup><sup><sup>B</sup></sup><sup>B</sup>}}. Also, for a }} oracle (and hence }}), one would fix the answers in the relativized E computation to a special nonanswer, thus ensuring that no fake answers are given.
Derandomization
The existence of certain strong pseudorandom number generators is conjectured by most experts of the field. Such generators could replace true random numbers in any polynomial-time randomized algorithm, producing indistinguishable results. The conjecture that these generators exist implies that randomness does not give additional computational power to polynomial time computation, that is, P RP BPP. More strongly, the assumption that P = BPP is in some sense equivalent to the existence of strong pseudorandom number generators.
László Babai, Lance Fortnow, Noam Nisan, and Avi Wigderson showed that unless EXPTIME collapses to MA, BPP is contained in
:<math>\textsf{i.o.-SUBEXP} = \bigcap\nolimits_{\varepsilon>0} \textsf{i.o.-DTIME} \left (2^{n^\varepsilon} \right).</math>
The class i.o.-SUBEXP, which stands for infinitely often SUBEXP, contains problems which have sub-exponential time algorithms for infinitely many input sizes. They also showed that P = BPP if the exponential-time hierarchy, which is defined in terms of the polynomial hierarchy and E as E<sup>PH</sup>, collapses to E; however, note that the exponential-time hierarchy is usually conjectured not to collapse.
Russell Impagliazzo and Avi Wigderson showed that if any problem in E, where
:<math>\mathsf{E} = \mathsf{DTIME} \left( 2^{O(n)} \right),</math>
has circuit complexity 2<sup>Ω(n)</sup> then P BPP.
See also
* RP
* ZPP
*BQP
* List of complexity classes
References
* <span id="Kabanets">Valentine Kabanets (2003). "CMPT 710 – Complexity Theory: Lecture 16". Simon Fraser University.</span>
* Pages 257–259 of section 11.3: Random Sources. Pages 269–271 of section 11.4: Circuit complexity.
* Section 10.2.1: The class BPP, pp. 336–339.
*
*
* Arora, Sanjeev; Boaz Barak (2009). "Computational Complexity: A Modern Approach".
External links
* [http://www.cs.princeton.edu/courses/archive/fall03/cs597E/ Princeton CS 597E: Derandomization paper list]
* [http://www.courses.fas.harvard.edu/~cs225/ Harvard CS 225: Pseudorandomness]
Category:Probabilistic complexity classes | https://en.wikipedia.org/wiki/BPP_(complexity) | 2025-04-05T18:26:41.073492 |
4080 | BQP | , RP, co-RP, BPP, PP), which generalise P within PSPACE. It is unknown if any of these containments are strict.]]
In computational complexity theory, bounded-error quantum polynomial time (BQP) is the class of decision problems solvable by a quantum computer in polynomial time, with an error probability of at most 1/3 for all instances. It is the quantum analogue to the complexity class BPP.
A decision problem is a member of BQP if there exists a quantum algorithm (an algorithm that runs on a quantum computer) that solves the decision problem with high probability and is guaranteed to run in polynomial time. A run of the algorithm will correctly solve the decision problem with a probability of at least 2/3.
{| class"wikitable" style"float:right; clear:right; text-align:center; margin-left:1em;"
|-
!colspan="3"| BQP algorithm (1 run)
|-
! "padding-left:4em;">produced</div>}}
!
!
|-
!
| ≥ 2/3
| ≤ 1/3
|-
!
| ≤ 1/3
| ≥ 2/3
|-
!colspan="3"| BQP algorithm (k runs)
|-
! "padding-left:4em;">Answer</div>produced}}
!
!
|-
!
| > 1 − 2<sup>−ck</sup>
| < 2<sup>−ck</sup>
|-
!
| < 2<sup>−ck</sup>
| > 1 − 2<sup>−ck</sup>
|-
|colspan"3" style"font-size:85%"|for some constant c > 0
|}
Definition
BQP can be viewed as the languages associated with certain bounded-error uniform families of quantum circuits.
Similarly to other "bounded error" probabilistic classes, the choice of 1/3 in the definition is arbitrary. We can run the algorithm a constant number of times and take a majority vote to achieve any desired probability of correctness less than 1, using the Chernoff bound. The complexity class is unchanged by allowing error as high as 1/2 − n<sup>−c</sup> on the one hand, or requiring error as small as 2<sup>−n<sup>c</sup></sup> on the other hand, where c is any positive constant, and n is the length of input.
Relationship to other complexity classes
{{unsolved|computer science|What is the relationship between <math>\mathsf{BQP}</math> and <math>\mathsf{NP}</math>?}}
BQP is defined for quantum computers; the corresponding complexity class for classical computers (or more formally for probabilistic Turing machines) is BPP. Just like P and BPP, BQP is low for itself, which means }}. PP and PSPACE. which showed that, relative to an oracle, BQP was not contained in PH. It can be proven that there exists an oracle A such that <math>\mathsf{BQP}^\mathrm{A}\nsubseteq\mathsf{PH}^\mathrm{A}</math>.
Adding postselection to BQP results in the complexity class PostBQP which is equal to PP. A complete problem for Promise-BQP Promise-BQP is the class of promise problems that can be solved by a uniform family of quantum circuits (i.e., within BQP). Completeness proofs focus on this version of BQP. Similar to the notion of NP-completeness and other complete problems, we can define a complete problem as a problem that is in Promise-BQP and that every other problem in Promise-BQP reduces to it in polynomial time. APPROX-QCIRCUIT-PROB
The APPROX-QCIRCUIT-PROB problem is complete for efficient quantum computation, and the version presented below is complete for the Promise-BQP complexity class (and not for the total BQP complexity class, for which no complete problems are known). APPROX-QCIRCUIT-PROB's completeness makes it useful for proofs showing the relationships between other complexity classes and BQP.
Given a description of a quantum circuit acting on qubits with gates, where is a polynomial in and each gate acts on one or two qubits, and two numbers <math>\alpha, \beta \in [0,1], \alpha > \beta</math>, distinguish between the following two cases:
* measuring the first qubit of the state <math>C|0\rangle^{\otimes n}</math> yields <math>|1\rangle</math> with probability <math>\geq \alpha</math>
* measuring the first qubit of the state <math>C|0\rangle^{\otimes n}</math> yields <math>|1\rangle</math> with probability <math>\leq \beta</math>
Here, there is a promise on the inputs as the problem does not specify the behavior if an instance is not covered by these two cases.
Claim. Any BQP problem reduces to APPROX-QCIRCUIT-PROB.
Proof.
Suppose we have an algorithm that solves APPROX-QCIRCUIT-PROB, i.e., given a quantum circuit acting on qubits, and two numbers <math>\alpha, \beta \in [0,1], \alpha > \beta</math>, distinguishes between the above two cases. We can solve any problem in BQP with this oracle, by setting <math>\alpha 2/3, \beta 1/3</math>.
For any <math>L \in \mathsf{BQP} </math>, there exists family of quantum circuits <math>\{Q_n\colon n \in \mathbb{N}\}</math> such that for all <math>n \in \mathbb{N}</math>, a state <math> |x\rangle </math> of <math>n </math> qubits, if <math>x \in L, Pr(Q_n(|x\rangle)1) \geq 2/3</math>; else if <math>x \notin L, Pr(Q_n(|x\rangle)0) \geq 2/3 </math>. Fix an input <math> |x\rangle </math> of qubits, and the corresponding quantum circuit <math>Q_n</math>. We can first construct a circuit <math>C_x</math> such that <math>C_x|0\rangle^{\otimes n} |x\rangle</math>. This can be done easily by hardwiring <math> |x\rangle </math> and apply a sequence of CNOT gates to flip the qubits. Then we can combine two circuits to get <math>C' Q_nC_x</math>, and now <math>C'|0\rangle^{\otimes n} Q_n|x\rangle</math>. And finally, necessarily the results of <math>Q_n</math> is obtained by measuring several qubits and apply some (classical) logic gates to them. We can always defer the measurement and reroute the circuits so that by measuring the first qubit of <math>C'|0\rangle^{\otimes n} Q_n|x\rangle</math>, we get the output. This will be our circuit , and we decide the membership of <math>x \in L</math> by running <math>A(C)</math> with <math>\alpha 2/3, \beta 1/3</math>. By definition of BQP, we will either fall into the first case (acceptance), or the second case (rejection), so <math>L \in \mathsf{BQP} </math> reduces to APPROX-QCIRCUIT-PROB.
BQP and EXP
We begin with an easier containment. To show that <math>\mathsf{BQP} \subseteq \mathsf{EXP}</math>, it suffices to show that APPROX-QCIRCUIT-PROB is in EXP since APPROX-QCIRCUIT-PROB is BQP-complete.
{{Math theorem|name=Claim|<math>\text{APPROX-QCIRCUIT-PROB} \in \mathsf{EXP}</math>}}
, we can use classical computer to stimulate each gate in to get the final state.
More formally, let be a polynomial sized quantum circuit on qubits and gates, where m is polynomial in n. Let <math>|\psi_0\rangle = |0\rangle^{\otimes n}</math> and <math>|\psi_i\rangle</math> be the state after the -th gate in the circuit is applied to <math>|\psi_{i-1}\rangle </math>. Each state <math>|\psi_i \rangle</math> can be represented in a classical computer as a unit vector in <math>\mathbb C^{2^n}</math>. Furthermore, each gate can be represented by a matrix in <math>\mathbb C^{2^n \times 2^n}</math>. Hence, the final state <math>|\psi_m \rangle </math> can be computed in <math>O(m\cdot 2^{2n})</math> time, and therefore all together, we have an <math>2^{O(n)}</math> time algorithm for calculating the final state, and thus the probability that the first qubit is measured to be one. This implies that <math>\text{APPROX-QCIRCUIT-PROB} \in \mathsf{EXP}</math>.}}
Note that this algorithm also requires <math>2^{O(n)}</math> space to store the vectors and the matrices. We will show in the following section that we can improve upon the space complexity.
BQP and PSPACE
Sum of histories is a technique introduced by physicist Richard Feynman for path integral formulation. APPROX-QCIRCUIT-PROB can be formulated in the sum of histories technique to show that <math>\mathsf{BQP} \subseteq \mathsf{PSPACE}</math>.
Consider a quantum circuit , which consists of gates, <math>g_1, g_2, \cdots, g_m</math>, where each <math>g_j</math> comes from a universal gate set and acts on at most two qubits.
To understand what the sum of histories is, we visualize the evolution of a quantum state given a quantum circuit as a tree. The root is the input <math>|0\rangle^{\otimes n}</math>, and each node in the tree has <math>2^n</math> children, each representing a state in <math>\mathbb C^n</math>. The weight on a tree edge from a node in -th level representing a state <math>|x\rangle</math> to a node in <math>j+1</math>-th level representing a state <math>|y\rangle</math> is <math>\langle y|g_{j+1}|x\rangle</math>, the amplitude of <math>|y\rangle</math> after applying <math>g_{j+1}</math> on <math>|x\rangle</math>. The transition amplitude of a root-to-leaf path is the product of all the weights on the edges along the path. To get the probability of the final state being <math>|\psi\rangle</math>, we sum up the amplitudes of all root-to-leave paths that ends at a node representing <math>|\psi\rangle</math>.
More formally, for the quantum circuit , its sum over histories tree is a tree of depth , with one level for each gate <math>g_i</math> in addition to the root, and with branching factor <math>2^n</math>.
{{Math theorem|1A history is a path in the sum of histories tree. We will denote a history by a sequence <math>(u_0|0\rangle^{\otimes n} \rightarrow u_1 \rightarrow \cdots \rightarrow u_{m-1}\rightarrow u_m x)</math> for some final state .|nameDefine}}
{{Math theorem|1Let <math>u, v \in \{0,1\}^n</math>. Let amplitude of the edge <math>(|u\rangle, |v\rangle)</math> in the -th level of the sum over histories tree be <math>\alpha_j (u \rightarrow v) \langle v|g_j |u\rangle</math>. For any history <math>h (u_0 \rightarrow u_1 \rightarrow \cdots \rightarrow u_{m-1}\rightarrow u_m)</math>, the transition amplitude of the history is the product <math>\alpha_h \alpha_1(|0\rangle^{\otimes n} \rightarrow u_1 )\alpha_2 (u_1 \rightarrow u_2 ) \cdots \alpha_m(u_{m-1}\rightarrow x)</math>.|name=Define}}
{{math proof|1Each gate <math>g_j</math> can be decomposed into <math>g_j I \otimes \tilde{g}_j</math> for some unitary operator <math>\tilde{g}_j</math> acting on two qubits, which without loss of generality can be taken to be the first two. Hence, <math> \langle v|g_j |u\rangle = \langle v_1 , v_2 |\tilde{g}_j |u_1 , u_2 \rangle \langle v_3, \cdots, v_n | u_3, \cdots, u_n\rangle </math> which can be computed in polynomial time in . Since is polynomial in , the transition amplitude of the history can be computed in polynomial time.}}
{{Math theorem|1Let <math>C|0\rangle^{\otimes n} \sum_{x \in \{0,1\}^n} \alpha_x |x\rangle</math> be the final state of the quantum circuit. For some <math>x \in \{0,1\}^n</math>, the amplitude <math>\alpha_x</math> can be computed by <math>\alpha_x \sum_{h (|0\rangle^{\otimes n} \rightarrow u_1 \rightarrow \cdots \rightarrow u_{t-1} \rightarrow |x\rangle)} \alpha_h</math>.|name=Claim}}
{{math proof|1We have <math>\alpha_x \langle x|C|0\rangle ^{\otimes n} \langle x |g_tg_{t-1}\cdots g_{1} |C|0\rangle ^{\otimes n} </math>. The result comes directly by inserting <math>I \sum_{x \in \{0,1\}^n} | x \rangle \langle x| </math> between <math>g_1, g_2</math>, and <math>g_2, g_3</math>, and so on, and then expand out the equation. Then each term corresponds to a <math>\alpha_h</math>, where <math>h= (|0\rangle^{\otimes n} \rightarrow u_1 \rightarrow \cdots \rightarrow u_{t-1} \rightarrow |x\rangle)</math>}}
{{Math theorem|1<math>\text{APPROX-QCIRCUIT-PROB} \in \mathsf{PSPACE}</math>|nameClaim}}
Notice in the sum over histories algorithm to compute some amplitude <math>\alpha_x</math>, only one history is stored at any point in the computation. Hence, the sum over histories algorithm uses <math>O(nm)</math> space to compute <math>\alpha_x</math> for any since <math>O(nm)</math> bits are needed to store the histories in addition to some workspace variables.
Therefore, in polynomial space, we may compute <math>\sum_x |\alpha_x|^2</math> over all with the first qubit being , which is the probability that the first qubit is measured to be 1 by the end of the circuit.
Notice that compared with the simulation given for the proof that <math>\mathsf{BQP} \subseteq \mathsf{EXP}</math>, our algorithm here takes far less space but far more time instead. In fact it takes <math>O(m\cdot 2^{mn} )</math> time to calculate a single amplitude!
BQP and PP
A similar sum-over-histories argument can be used to show that <math>\mathsf{BQP} \subseteq \mathsf{PP}</math>.
P and BQP
We know <math> \mathsf{P} \subseteq \mathsf{BQP} </math>, since every classical circuit can be simulated by a quantum circuit.
It is conjectured that BQP solves hard problems outside of P, specifically, problems in NP. The claim is indefinite because we don't know if P=NP, so we don't know if those problems are actually in P. Below are some evidence of the conjecture:
*Integer factorization (see Shor's algorithm)
*Discrete logarithm<ref name="Shor"/>
*Simulation of quantum systems (see universal quantum simulator)
*Approximating the Jones polynomial at certain roots of unity
*Harrow-Hassidim-Lloyd (HHL) algorithm
See also
* Hidden subgroup problem
* Polynomial hierarchy (PH)
* Quantum complexity theory
* QMA, the quantum equivalent to NP.
* QIP, the quantum equivalent to IP.
References
External links
* [https://complexityzoo.uwaterloo.ca/Complexity_Zoo:B#bqp Complexity Zoo link to BQP]
Category:Probabilistic complexity classes
Category:Quantum complexity theory
Category:Quantum computing | https://en.wikipedia.org/wiki/BQP | 2025-04-05T18:26:41.104909 |
4082 | Blade Runner 2: The Edge of Human | | isbn = 0-553-09979-5
| <!-- See Wikipedia:WikiProject_Novels or Wikipedia:WikiProject_Books -->
| image = Blade Runner 2 The Edge of Human KW Jeter cover.jpg
| series = Blade Runner
| release_date = October 1, 1995
| media_type = Print (Hardcover, Paperback)
| pages = 340
| dewey= 813/.54 20
| congress= PS3560.E85 B58 1995
| oclc= 32548543
| preceded_by = Do Androids Dream of Electric Sheep?
| followed_by = Replicant Night
| caption = Cover of the first edition
}}
Blade Runner 2: The Edge of Human (1995) is a science fiction novel by American writer K. W. Jeter. It is a continuation of both the film Blade Runner and the novel upon which the film was based, Philip K. Dick's Do Androids Dream of Electric Sheep?
Plot
Several months after the events depicted in Blade Runner, Deckard has retired to an isolated shack outside the city, taking the replicant Rachael with him in a Tyrell transport container, which slows down the replicant aging process. He is approached by a woman who explains she is Sarah Tyrell, niece of Eldon Tyrell, heiress to the Tyrell Corporation and the human template ("templant") for the Rachael replicant. She asks Deckard to hunt down the "missing" sixth replicant. At the same time, the templant for Roy Batty hires Dave Holden, the blade runner attacked by Leon, to help him hunt down the man he believes is the sixth replicant—Deckard.
Deckard and Holden's investigations lead them to re-visit Sebastian, Bryant, and John Isidore (from the book Do Androids Dream Of Electric Sheep?), learning more about the nature of the blade runners and the replicants.
When Deckard, Batty, and Holden finally clash, Batty's super-human fighting prowess leads Holden to believe he has been duped all along and that Batty is the sixth replicant, leading to Holden shooting him. Deckard returns to Sarah with his suspicion: there is no sixth replicant. Sarah, speaking via a remote camera, confesses that she invented and maintained the rumor herself in order to deliberately discredit and eventually destroy the Tyrell Corporation because her uncle Eldon had based Rachel on her and then abandoned the real Sarah. Sarah brings Rachael back to the Corporation to meet with Deckard, and they escape.
However, Holden, recovering from his injuries during the fight, later uncovers the truth: Rachael has been killed by Tyrell agents, and the "Rachael" who escaped with Deckard was actually Sarah. She has completed her revenge by both destroying Tyrell and taking back Rachael's place.
Characters
*Rick Deckard: The Tyrell Corporation finally locates him, residing at a cabin in the woods with the frozen Rachael. In exchange for getting Rachael back, Deckard agrees to hunt the missing sixth replicant.
*Roy Batty: The man which Tyrell used as the template for his combat replicants is in fact a man of considerable instability, suffering from a brain disorder that prevents him from experiencing fear.
*Sarah Tyrell: The niece of Eldon Tyrell, Sarah locates and hires Deckard to eliminate the final replicant in order to retain her corporation's hold over the market.
*Dave Holden: Starting off bed-ridden after his attack by the replicant Leon, Holden is rescued by Roy who in turn leads him to some startling revelations.
*J.R. Isidore: A lowly employee of a vet's office, Isidore also works as an underground replicant sympathizer, having made modifications to replicants in order to help them escape detection.
Relationship to other works
The book's plot draws from other material related to Blade Runner in a number of ways:
* Deckard, Pris, Sebastian, Leon, Batty, and Holden all appeared in Blade Runner.
* Many of the parts of the "conspiracy" are based on errors or plot holes identified by fans of the original movie, such as Leon's ability to bring a gun into the Tyrell building, or the reference to the sixth replicant.
* The character of John Isidore, and his "pet hospital", is taken from Dick's original novel Do Androids Dream of Electric Sheep?, although that book contained no suggestion that the shop ran a sideline in modifying replicants.
* Blade Runner<nowiki>'</nowiki>s Sebastian was based on Electric Sheep<nowiki>'</nowiki>s Isidore, though Jeter features them as separate characters in The Edge of Human.
* The idea of replicant models being mass-produced, and in particular a woman identical to Rachael existing, is also from Do Androids Dream of Electric Sheep?; although in that book, Pris was the replicant double of Rachael, and there was no suggestion that replicants were constructed based on human templates.
* The etymology of the term "blade runner" is revealed to come from the German phrase bleib ruhig, meaning "remain calm." It was supposedly developed by the Tyrell Corporation to prevent news about replicants malfunctioning.
However, it also contradicts material in some ways:
* Sebastian was stated as being dead in the movie, yet he is alive in The Edge of Human.
* Pris was clearly stated as being a replicant in both the movie and the original novel, yet The Edge of Human claims she was human.
* Pris was clearly destroyed by Deckard in both the movie and the original novel. Sebastian's ability to bring Pris back to life as a replicant introduces numerous problems: the book implies that Sebastian was able to do this without realising that her original body was human. It is likewise unclear why Deckard would have left her, or any suspected replicant he retired, in a state from which they could be repaired.
* "The Final Cut" of Blade Runner removed the reference of a surviving sixth replicant, as it was normally considered a leftover from an early script.
Reception
Michael Giltz of Entertainment Weekly gave the book a "C−", feeling that "only hardcore fans will be satisfied by this tale" and saying Jeter's "habit of echoing dialogue and scenes from the film is annoying and begs comparisons he would do well to avoid." Tal Cohen of ''Tal Cohen's Bookshelf called The Edge of Human'' "a good book", praising Jeter's "further, and deeper, investigation of the questions Philip K. Dick originally asked", but criticized the book for its "needless grandioseness" and for "rel[ying] on Blade Runner too heavily, [as] the number of new characters introduced is extremely small..."
Ian Kaplan of BearCave.com gave the book three stars out of five, saying that while he was "not entirely satisfied" and felt that the "story tends to be shallow", "Jeter does deal with the moral dilemma of the Blade Runners who hunt down beings that are virtually human in every way." J. Patton of The Bent Cover praised Jeter for "[not] try[ing] to emulate Philip K. Dick", adding, "This book also has all the grittiness and dark edges that the movie showed off so well, along with a very fast pace that will keep you reading into the wee hours of the night."
Failed film adaptation
In the late 1990s, Edge of Human had been adapted into a screenplay by Stuart Hazeldine, Blade Runner Down, that was to be filmed as the sequel to the 1982 film Blade Runner. Ultimately neither this script nor the Jeter novel were used for the eventual sequel, Blade Runner 2049, which follows a different story.<ref nameisbn9780810869523-pp45/> See also
* Blade Runner: Do Androids Dream of Electric Sheep? – original story by P K Dick
* Blade Runner: A Story of the Future – film novelization by Les Martin
* Blade Runner 3: Replicant Night – K. W. Jeter
* Blade Runner 4: Eye and Talon'' – K. W. Jeter
References
Category:1995 American novels
Category:Blade Runner (franchise) novels
Category:Novels by K. W. Jeter
Category:1995 science fiction novels
Category:Novels based on films | https://en.wikipedia.org/wiki/Blade_Runner_2:_The_Edge_of_Human | 2025-04-05T18:26:41.109208 |
4086 | Brainfuck | Mindfuck|GRM. Brainfuck}}
}}
Brainfuck is an esoteric programming language created in 1993 by Swiss student Urban Müller. Designed to be extremely minimalistic, the language consists of only eight simple commands, a data pointer, and an instruction pointer.
Brainfuck is an example of a so-called Turing tarpit: it can be used to write any program, but it is not practical to do so because it provides so little abstraction that the programs get very long or complicated. While Brainfuck is fully Turing-complete, it is not intended for practical use but to challenge and amuse programmers. Brainfuck requires one to break down commands into small and simple instructions.
The language takes its name from the slang term brainfuck, which refers to things so complicated or unusual that they exceed the limits of one's understanding, as it was not meant or made for designing actual software but to challenge the boundaries of computer programming.
Because the language's name contains profanity, many substitutes are used, such as brainfsck, branflakes, brainoof, brainfrick, BrainF, and BF. History Müller designed Brainfuck with the goal of implementing the smallest possible compiler, inspired by the 1024-byte compiler for the FALSE programming language. Müller's original compiler was implemented in Motorola 68000 assembly on the Amiga and compiled to a binary with a size of 296 bytes. He uploaded the first Brainfuck compiler to Aminet in 1993. The program came with a "Readme" file, which briefly described the language, and challenged the reader "Who can program anything useful with it? :)". Müller also included an interpreter and some examples. A second version of the compiler used only 240 bytes.
Language design
The language consists of eight commands. A brainfuck program is a sequence of these commands, possibly interspersed with other characters (which are ignored). The commands are executed sequentially, with some exceptions: an instruction pointer begins at the first command, and each command it points to is executed, after which it normally moves forward to the next command. The program terminates when the instruction pointer moves past the last command.
The brainfuck language uses a simple machine model consisting of the program and instruction pointer, as well as a one-dimensional array of at least 30,000 byte cells initialized to zero; a movable data pointer (initialized to point to the leftmost byte of the array); and two streams of bytes for input and output (most often connected to a keyboard and a monitor respectively, and using the ASCII character encoding).
The eight language commands each consist of a single character:
{| class="wikitable"
|-
! style="text-align:center;" | Character
! align="left" | Instruction Performed
|-
|style="text-align:center"|<code>></code>
| Increment the data pointer by one (to point to the next cell to the right).
|-
|style="text-align:center"|<code><</code>
| Decrement the data pointer by one (to point to the next cell to the left).
|-
|style="text-align:center"|<code>+</code>
| Increment the byte at the data pointer by one.
|-
|style="text-align:center"|<code>-</code>
| Decrement the byte at the data pointer by one.
|-
|style="text-align:center"|<code>.</code>
| Output the byte at the data pointer.
|-
|style="text-align:center"|<code>,</code>
| Accept one byte of input, storing its value in the byte at the data pointer.
|-
|style="text-align:center"|<code>[</code>
| If the byte at the data pointer is zero, then instead of moving the instruction pointer forward to the next command, jump it forward to the command after the matching <code>]</code> command.
|-
|style="text-align:center"|<code>]</code>
| If the byte at the data pointer is nonzero, then instead of moving the instruction pointer forward to the next command, jump it back to the command after the matching <code>[</code> command.
|}
<code>[</code> and <code>]</code> match as parentheses usually do: each <code>[</code> matches exactly one <code>]</code> and vice versa, the <code>[</code> comes first, and there can be no unmatched <code>[</code> or <code>]</code> between the two.
Brainfuck programs are usually difficult to comprehend. This is partly because any mildly complex task requires a long sequence of commands and partly because the program's text gives no direct indications of the program's state. These, as well as Brainfuck's inefficiency and its limited input/output capabilities, are some of the reasons it is not used for serious programming. Nonetheless, like any Turing-complete language, Brainfuck is theoretically capable of computing any computable function or simulating any other computational model if given access to an unlimited amount of memory and time. A variety of Brainfuck programs have been written. Although Brainfuck programs, especially complicated ones, are difficult to write, it is quite trivial to write an interpreter for Brainfuck in a more typical language such as C due to its simplicity. Brainfuck interpreters written in the Brainfuck language itself also exist. Examples Adding two values
As a first, simple example, the following code snippet will add the current cell's value to the next cell: Each time the loop is executed, the current cell is decremented, the data pointer moves to the right, that next cell is incremented, and the data pointer moves left again. This sequence is repeated until the starting cell is 0.
<syntaxhighlight lang="bf">
[->+<]
</syntaxhighlight>
This can be incorporated into a simple addition program as follows:
<syntaxhighlight lang="bf">
++ Cell c0 = 2
> +++++ Cell c1 = 5
[ Start your loops with your cell pointer on the loop counter (c1 in our case)
< + Add 1 to c0
> - Subtract 1 from c1
] End your loops with the cell pointer on the loop counter
At this point our program has added 5 to 2 leaving 7 in c0 and 0 in c1
but we cannot output this value to the terminal since it is not ASCII encoded
To display the ASCII character "7" we must add 48 to the value 7
We use a loop to compute 48 = 6 * 8
++++ ++++ c1 = 8 and this will be our loop counter again
[
< +++ +++ Add 6 to c0
> - Subtract 1 from c1
]
< . Print out c0 which has the value 55 which translates to "7"!
</syntaxhighlight>
Hello World!
The following program prints "Hello World!" and a newline to the screen:
<syntaxhighlight lang="bf">
[ This program prints "Hello World!" and a newline to the screen; its
length is 106 active command characters. [It is not the shortest.]
This loop is an "initial comment loop", a simple way of adding a comment
to a BF program such that you don't have to worry about any command
characters. Any ".", ",", "+", "-", "<" and ">" characters are simply
ignored, the "[" and "]" characters just have to be balanced. This
loop and the commands it contains are ignored because the current cell
defaults to a value of 0; the 0 value causes this loop to be skipped.
]
++++++++ Set Cell #0 to 8
[
>++++ Add 4 to Cell #1; this will always set Cell #1 to 4
[ as the cell will be cleared by the loop
>++ Add 2 to Cell #2
>+++ Add 3 to Cell #3
>+++ Add 3 to Cell #4
>+ Add 1 to Cell #5
<<<<- Decrement the loop counter in Cell #1
] Loop until Cell #1 is zero; number of iterations is 4
>+ Add 1 to Cell #2
>+ Add 1 to Cell #3
>- Subtract 1 from Cell #4
>>+ Add 1 to Cell #6
[<] Move back to the first zero cell you find; this will
be Cell #1 which was cleared by the previous loop
<- Decrement the loop Counter in Cell #0
] Loop until Cell #0 is zero; number of iterations is 8
The result of this is:
Cell no : 0 1 2 3 4 5 6
Contents: 0 0 72 104 88 32 8
Pointer : ^
>>. Cell #2 has value 72 which is 'H'
>---. Subtract 3 from Cell #3 to get 101 which is 'e'
+++++++..+++. Likewise for 'llo' from Cell #3
>>. Cell #5 is 32 for the space
<-. Subtract 1 from Cell #4 for 87 to give a 'W'
<. Cell #3 was set to 'o' from the end of 'Hello'
+++.------.--------. Cell #3 for 'rl' and 'd'
>>+. Add 1 to Cell #5 gives us an exclamation point
>++. And finally a newline from Cell #6
</syntaxhighlight>
For readability, this code has been spread across many lines, and blanks and comments have been added. Brainfuck ignores all characters except the eight commands <code>+-<>[],.</code> so no special syntax for comments is needed (as long as the comments do not contain the command characters). The code could just as well have been written as:
<syntaxhighlight lang"bf">++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.</syntaxhighlight> ROT13
This program enciphers its input with the ROT13 cipher. To do this, it must map characters A-M (ASCII 65–77) to N-Z (78–90), and vice versa. Also it must map a-m (97–109) to n-z (110–122) and vice versa. It must map all other characters to themselves; it reads characters one at a time and outputs their enciphered equivalents until it reads an EOF (here assumed to be represented as either -1 or "no change"), at which point the program terminates.
<syntaxhighlight lang="bf">
-,+[ Read first character and start outer character reading loop
-[ Skip forward if character is 0
>>++++[>++++++++<-] Set up divisor (32) for division loop
(MEMORY LAYOUT: dividend copy remainder divisor quotient zero zero)
<+<-[ Set up dividend (x minus 1) and enter division loop
>+>+>-[>>>] Increase copy and remainder / reduce divisor / Normal case: skip forward
<[[>+<-]>>+>] Special case: move remainder back to divisor and increase quotient
<<<<<- Decrement dividend
] End division loop
]>>>[-]+ End skip loop; zero former divisor and reuse space for a flag
>--[-[<->+++[-]]]<[ Zero that flag unless quotient was 2 or 3; zero quotient; check flag
++++++++++++<[ If flag then set up divisor (13) for second division loop
(MEMORY LAYOUT: zero copy dividend divisor remainder quotient zero zero)
>-[>+>>] Reduce divisor; Normal case: increase remainder
>[+[<+>-]>+>>] Special case: increase remainder / move it back to divisor / increase quotient
<<<<<- Decrease dividend
] End division loop
>>[<+>-] Add remainder back to divisor to get a useful 13
>[ Skip forward if quotient was 0
-[ Decrement quotient and skip forward if quotient was 1
-<<[-]>> Zero quotient and divisor if quotient was 2
]<<[<<->>-]>> Zero divisor and subtract 13 from copy if quotient was 1
]<<[<<+>>-] Zero divisor and add 13 to copy if quotient was 0
] End outer skip loop (jump to here if ((character minus 1)/32) was not 2 or 3)
<[-] Clear remainder from first division if second division was skipped
<.[-] Output ROT13ed character from copy and clear it
<-,+ Read next character
] End character reading loop
</syntaxhighlight>
Simulation of abiogenesis
In 2024, a Google research project used a slightly modified 10-command version of Brainfuck as the basis of an artificial digital environment. In this environment, they found that replicators arose naturally and competed with each other for domination of the environment.
See also
* JSFuck – an esoteric subset of the JavaScript programming language with a very limited set of characters
Notes
References
External links
*
Category:Non-English-based programming languages
Category:Esoteric programming languages
Category:Programming languages created in 1993 | https://en.wikipedia.org/wiki/Brainfuck | 2025-04-05T18:26:41.117056 |
4091 | Bartolomeo Ammannati | thumb|The Fountain of Neptune (Fontana del Nettuno) on the Piazza della Signoria in Florence, Italy
Bartolomeo Ammannati (18 June 1511 – 13 April 1592) was an Italian architect and sculptor, born at Settignano, near Florence, Italy. He studied under Baccio Bandinelli and Jacopo Sansovino (assisting on the design of the Library of St. Mark's, the Biblioteca Marciana, Venice) and closely imitated the style of Michelangelo. Ammannati continued work on this fountain for a decade, adding around the perimeter a cornucopia of demigod figures: bronze reclining river gods, laughing satyrs and marble sea horses emerging from the water.
In 1550 Ammannati married Laura Battiferri, an elegant poet and an accomplished woman.
General references
Bartolomeo Ammannati in the "History of Art"
External links
Category:1511 births
Category:1592 deaths
Category:People from the Metropolitan City of Florence
Category:16th-century Italian architects
Category:16th-century Italian sculptors
Category:Italian male sculptors
Category:Italian Mannerist sculptors
Category:Italian Mannerist architects | https://en.wikipedia.org/wiki/Bartolomeo_Ammannati | 2025-04-05T18:26:41.120774 |
4092 | Bishop | A bishop is an ordained member of the clergy who is entrusted with a position of authority and oversight in a religious institution. In Christianity, bishops are normally responsible for the governance and administration of dioceses. The role or office of the bishop is called episcopacy or the episcopate. Organizationally, several Christian denominations utilize ecclesiastical structures that call for the position of bishops, while other denominations have dispensed with this office, seeing it as a symbol of power. Bishops have also exercised political authority within their dioceses.
Traditionally, bishops claim apostolic succession, a direct historical lineage dating back to the original Twelve Apostles or Saint Paul. The bishops are by doctrine understood as those who possess the full priesthood given by Jesus Christ, and therefore may ordain other clergy, including other bishops. A person ordained as a deacon, priest (i.e. presbyter), and then bishop is understood to hold the fullness of the ministerial priesthood, given responsibility by Christ to govern, teach and sanctify the Body of Christ (the Church). Priests, deacons and lay ministers co-operate and assist their bishops in pastoral ministry.
Some Pentecostal and other Protestant denominations have bishops who oversee congregations, though they do not necessarily claim apostolic succession.
Etymology and terminology
The English word bishop derives, via Latin , Old English , and Middle English , from the Greek word , meaning "overseer" or "supervisor". Greek was the language of the early Christian church,
The English words priest and presbyter both derive, via Latin, from the Greek word , meaning "elder" or "senior", and not originally referring to priesthood.
In the early Christian era the two terms were not always clearly distinguished, but is used in the sense of the order or office of bishop, distinct from that of , in the writings attributed to Ignatius of Antioch in the second century. History in Christianity The earliest organization of the Church in Jerusalem was, according to most scholars, similar to that of Jewish synagogues, but it had a council or college of ordained presbyters (). In Acts 11:30 and Acts 15:22, a collegiate system of government in Jerusalem is chaired by James the Just, according to tradition the first bishop of the city. In Acts 14:23, the Apostle Paul ordains presbyters in churches in Anatolia. The word presbyter was not yet distinguished from overseer (, later used exclusively to mean bishop), as in Acts 20:17, Titus 1:5–7 and 1 Peter 5:1.}} }} The earliest writings of the Apostolic Fathers, the Didache and the First Epistle of Clement, for example, show the church used two terms for local church offices—presbyters (seen by many as an interchangeable term with or overseer) and deacon.
, bishop of Hippo Regius]]
In the First epistle to Timothy and Epistle to Titus in the New Testament a more clearly defined episcopate can be seen. Both letters state that Paul had left Timothy in Ephesus and Titus in Crete to oversee the local church. Paul commands Titus to ordain presbyters/bishops and to exercise general oversight.
Early sources are unclear but various groups of Christian communities may have had the bishop surrounded by a group or college functioning as leaders of the local churches. Eventually the head or "monarchic" bishop came to rule more clearly, and all local churches would eventually follow the example of the other churches and structure themselves after the model of the others with the one bishop in clearer charge, though the role of the body of presbyters remained important. Apostolic Fathers
Around the end of the 1st century, the church's organization became clearer in historical documents. In the works of the Apostolic Fathers, and Ignatius of Antioch in particular, the role of the episkopos, or bishop, became more important or, rather, already was very important and being clearly defined. While Ignatius of Antioch offers the earliest clear description of monarchial bishops (a single bishop over all house churches in a city)}} he is an advocate of monepiscopal structure rather than describing an accepted reality. To the bishops and house churches to which he writes, he offers strategies on how to pressure house churches who do not recognize the bishop into compliance. Other contemporary Christian writers do not describe monarchial bishops, either continuing to equate them with the presbyters or speaking of (bishops, plural) in a city.
]]
Clement of Alexandria (end of the 2nd century) writes about the ordination of a certain Zachæus as bishop by the imposition of Simon Peter Bar-Jonah's hands. The words bishop and ordination are used in their technical meaning by the same Clement of Alexandria. The bishops in the 2nd century are defined also as the only clergy to whom the ordination to priesthood (presbyterate) and diaconate is entrusted: "a priest (presbyter) lays on hands, but does not ordain." ().
At the beginning of the 3rd century, Hippolytus of Rome describes another feature of the ministry of a bishop, which is that of the : the primate of sacrificial priesthood and the power to forgive sins.
Christian bishops and civil government
The efficient organization of the Roman Empire became the template for the organisation of the church in the 4th century, particularly after Constantine's Edict of Milan. As the church moved from the shadows of privacy into the public forum it acquired land for churches, burials and clergy. In 391, Theodosius I decreed that any land that had been confiscated from the church by Roman authorities be returned.
]]
The most usual term for the geographic area of a bishop's authority and ministry, the diocese, began as part of the structure of the Roman Empire under Diocletian. As Roman authority began to fail in the western portion of the empire, the church took over much of the civil administration. This can be clearly seen in the ministry of two popes: Pope Leo I in the 5th century, and Pope Gregory I in the 6th century. Both of these men were statesmen and public administrators in addition to their role as Christian pastors, teachers and leaders. In the Eastern churches, latifundia entailed to a bishop's see were much less common, the state power did not collapse the way it did in the West, and thus the tendency of bishops acquiring civil power was much weaker than in the West. However, the role of Western bishops as civil authorities, often called prince bishops, continued throughout much of the Middle Ages.
Bishops holding political office
, Prince-Bishop of Augsburg]]
As well as being Archchancellors of the Holy Roman Empire after the 9th century, bishops generally served as chancellors to medieval monarchs, acting as head of the justiciary and chief chaplain. The Lord Chancellor of England was almost always a bishop up until the dismissal of Cardinal Thomas Wolsey by Henry VIII. Similarly, the position of Kanclerz in the Polish kingdom was always held by a bishop until the 16th century.
In modern times, the principality of Andorra is headed by Co-Princes of Andorra, one of whom is the Bishop of Urgell and the other, the sitting President of France, an arrangement that began with the Paréage of Andorra (1278), and was ratified in the 1993 constitution of Andorra.
The office of the Papacy is inherently held by the sitting Roman Catholic Bishop of Rome. Though not originally intended to hold temporal authority, since the Middle Ages the power of the Papacy gradually expanded deep into the secular realm and for centuries the sitting Bishop of Rome was the most powerful governmental office in Central Italy. In modern times, the Pope is also the sovereign Prince of Vatican City, an internationally recognized micro-state located entirely within the city of Rome.
In France, prior to the Revolution, representatives of the clergy — in practice, bishops and abbots of the largest monasteries — comprised the First Estate of the Estates-General. This role was abolished after separation of Church and State was implemented during the French Revolution.
In the 21st century, the more senior bishops of the Church of England continue to sit in the House of Lords of the Parliament of the United Kingdom, as representatives of the established church, and are known as Lords Spiritual. The Bishop of Sodor and Man, whose diocese lies outside the United Kingdom, is an ex officio member of the Legislative Council of the Isle of Man. In the past, the Bishop of Durham had extensive vice-regal powers within his northern diocese, which was a county palatine, the County Palatine of Durham, (previously, Liberty of Durham) of which he was ex officio the earl. In the 19th century, a gradual process of reform was enacted, with the majority of the bishop's historic powers vested in The Crown by 1858.
Eastern Orthodox bishops, along with all other members of the clergy, are canonically forbidden to hold political office. Occasional exceptions to this rule are tolerated when the alternative is political chaos. In the Ottoman Empire, the Patriarch of Constantinople, for example, had de facto administrative, cultural and legal jurisdiction, as well as spiritual authority, over all Eastern Orthodox Christians of the empire, as part of the Ottoman millet system. An Orthodox bishop headed the Prince-Bishopric of Montenegro from 1516 to 1852, assisted by a secular guvernadur. More recently, Archbishop Makarios III of Cyprus, served as President of the Cyprus from 1960 to 1977, an extremely turbulent time period on the island.
In 2001, Peter Hollingworth, AC, OBE – then the Anglican Archbishop of Brisbane – was controversially appointed Governor-General of Australia. Although Hollingworth gave up his episcopal position to accept the appointment, it still attracted considerable opposition in a country which maintains a formal separation between Church and State.
Episcopacy during the English Civil War
During the period of the English Civil War, the role of bishops as wielders of political power and as upholders of the established church became a matter of heated political controversy. Presbyterianism was the polity of most Reformed Christianity in Europe, and had been favored by many in England since the English Reformation. Since in the primitive church the offices of presbyter and were not clearly distinguished, many Puritans held that this was the only form of government the church should have. The Anglican divine, Richard Hooker, objected to this claim in his famous work Of the Laws of Ecclesiastic Polity while, at the same time, defending Presbyterian ordination as valid (in particular Calvin's ordination of Beza). This was the official stance of the English Church until the Commonwealth, during which time, the views of Presbyterians and Independents (Congregationalists) were more freely expressed and practiced.
Christian churches
Catholic, Eastern Orthodox, Oriental Orthodox, Lutheran and Anglican churches
is used as a symbol of the bishop's ministry in Western Christianity.]]
of a Catholic bishop]]
Bishops form the leadership in the Catholic Church, the Eastern Orthodox Church, the Oriental Orthodox Churches, certain Lutheran churches, the Anglican Communion, the Independent Catholic churches, the Independent Anglican churches, and certain other, smaller, denominations.
The traditional role of a bishop is as pastor of a diocese (also called a bishopric, synod, eparchy or see), and so to serve as a "diocesan bishop", or "eparch" as it is called in many Eastern Christian churches. Dioceses vary considerably in size, geographically and population-wise. Some dioceses around the Mediterranean Sea which were Christianised early are rather compact, whereas dioceses in areas of rapid modern growth in Christian commitment—as in some parts of Sub-Saharan Africa, South America and the Far East—are much larger and more populous.
s of Christ, the Theotokos (Mary, Mother of God) and Forerunner (John the Baptist)]]
As well as traditional diocesan bishops, many churches have a well-developed structure of church leadership that involves a number of layers of authority and responsibility.
Great Britain).}}
Duties
, The Seven Sacraments, 15th century. In the Latin Church of the Catholic Church the administration of Confirmation is normally reserved to the local bishop.]]
bishops wearing a cope over cassock, surplice, ruff and pectoral cross]]
In Catholicism, Eastern Orthodoxy, Oriental Orthodoxy, High Church Lutheranism, and Anglicanism, only a bishop can ordain other bishops, priests, and deacons.
In the Eastern liturgical tradition, a priest can celebrate the Divine Liturgy only with the blessing of a bishop. In Byzantine usage, an antimension signed by the bishop is kept on the altar partly as a reminder of whose altar it is and under whose omophorion the priest at a local parish is serving. In Syriac Church usage, a consecrated wooden block called a thabilitho is kept for the same reasons.
The bishop is the ordinary minister of the sacrament of confirmation in the Latin Church, and in the Old Catholic communion only a bishop may administer this sacrament. In the Lutheran and Anglican churches, the bishop normatively administers the rite of confirmation, although in those denominations that do not have an episcopal polity, confirmation is administered by the priest. However, in the Byzantine and other Eastern rites, whether Eastern or Oriental Orthodox or Eastern Catholic, chrismation is done immediately after baptism, and thus the priest is the one who confirms, using chrism blessed by a bishop.
Ordination of Catholic, Eastern Orthodox, Oriental Orthodox, Lutheran and Anglican bishops
Bishops in all of these communions are ordained by other bishops through the laying on of hands.
Ordination of a bishop, and thus continuation of apostolic succession, takes place through a ritual centred on the imposition of hands and prayer.
Catholic, Eastern Orthodox, Oriental Orthodox, Anglican, Old Catholic and some Lutheran bishops claim to be part of the continuous sequence of ordained bishops since the days of the apostles referred to as apostolic succession.
In Scandinavia and the Baltic region, Lutheran churches participating in the Porvoo Communion (those of Iceland, Norway, Sweden, Finland, Estonia, and Lithuania), as well as many non-Porvoo membership Lutheran churches (including those of Kenya, Latvia, and Russia), as well as the confessional Communion of Nordic Lutheran Dioceses, believe that they ordain their bishops in the apostolic succession in lines stemming from the original apostles. The New Westminster Dictionary of Church History states that "In Sweden the apostolic succession was preserved because the Catholic bishops were allowed to stay in office, but they had to approve changes in the ceremonies."
Peculiar to the Catholic Church
While traditional teaching maintains that any bishop with apostolic succession can validly perform the ordination of another bishop, some churches require two or three bishops participate, either to ensure sacramental validity or to conform with church law. Catholic doctrine holds that one bishop can validly ordain another (priest) as a bishop. Though a minimum of three bishops participating is desirable (there are usually several more) in order to demonstrate collegiality, canonically only one bishop is necessary. The practice of only one bishop ordaining was normal in countries where the church was persecuted under Communist rule.
The title of archbishop or metropolitan may be granted to a senior bishop, usually one who is in charge of a large ecclesiastical jurisdiction. He may, or may not, have provincial oversight of suffragan bishops and may possibly have auxiliary bishops assisting him.
Apart from the ordination, which is always done by other bishops, there are different methods as to the actual selection of a candidate for ordination as bishop. In the Catholic Church the Congregation for Bishops generally oversees the selection of new bishops with the approval of the pope. The papal nuncio usually solicits names from the bishops of a country, consults with priests and leading members of a laity, and then selects three to be forwarded to the Holy See. In Europe, some cathedral chapters have duties to elect bishops. The Eastern Catholic churches generally elect their own bishops. Most Eastern Orthodox churches allow varying amounts of formalised laity or lower clergy influence on the choice of bishops. This also applies in those Eastern churches which are in union with the pope, though it is required that he give assent.
The pope, in addition to being the Bishop of Rome and spiritual head of the Catholic Church, is also the Patriarch of the Latin Church. Each bishop within the Latin Church is answerable directly to the Pope and not any other bishop except to metropolitans in certain oversight instances. The pope previously used the title Patriarch of the West, but this title was dropped from use in 2006, a move which caused some concern within the Eastern Orthodox Communion as, to them, it implied wider papal jurisdiction.
Recognition of other churches' ordinations
The Catholic Church does recognise as valid (though illicit) ordinations done by breakaway Catholic, Old Catholic or Oriental bishops, and groups descended from them; it also regards as both valid and licit those ordinations done by bishops of the Eastern churches, so long as those receiving the ordination conform to other canonical requirements (for example, is an adult male) and an eastern orthodox rite of episcopal ordination, expressing the proper functions and sacramental status of a bishop, is used; this has given rise to the phenomenon of (for example, clergy of the Independent Catholic groups which claim apostolic succession, though this claim is rejected by both Catholicism and Eastern Orthodoxy). With respect to Lutheranism, "the Catholic Church has never officially expressed its judgement on the validity of orders as they have been handed down by episcopal succession in these two national Lutheran churches" (the Evangelical Lutheran Church of Sweden and the Evangelical Lutheran Church of Finland) though it does "question how the ecclesiastical break in the 16th century has affected the apostolicity of the churches of the Reformation and thus the apostolicity of their ministry".
Since Pope Leo XIII issued the bull in 1896, the Catholic Church has insisted that Anglican orders are invalid because of the Reformed changes in the Anglican ordination rites of the 16th century and divergence in understanding of the theology of priesthood, episcopacy and Eucharist. However, since the 1930s, Utrecht Old Catholic bishops (recognised by the Holy See as validly ordained) have sometimes taken part in the ordination of Anglican bishops. According to the writer Timothy Dufort, by 1969, all Church of England bishops had acquired Old Catholic lines of apostolic succession recognised by the Holy See. This development has been used to argue that the strain of apostolic succession has been re-introduced into Anglicanism, at least within the Church of England. However, other issues, such as the Anglican ordination of women, is at variance with Catholic understanding of Christian teaching, and have contributed to the reaffirmation of Catholic rejection of Anglican ordinations.
The Eastern Orthodox Churches do not accept the validity of any ordinations performed by the Independent Catholic groups, as Eastern Orthodoxy considers to be spurious any consecration outside the church as a whole. Eastern Orthodoxy considers apostolic succession to exist only within the Universal Church, and not through any authority held by individual bishops; thus, if a bishop ordains someone to serve outside the (Eastern Orthodox) Church, the ceremony is ineffectual, and no ordination has taken place regardless of the ritual used or the ordaining prelate's position within the Eastern Orthodox Churches.
The position of the Catholic Church is slightly different. Whilst it does recognise the validity of the orders of certain groups which separated from communion with Holy See (for instance, the ordinations of the Old Catholics in communion with Utrecht, as well as the Polish National Catholic Church - which received its orders directly from Utrecht, and was until recently part of that communion), Catholicism does not recognise the orders of any group whose teaching is at variance with what they consider the core tenets of Christianity; this is the case even though the clergy of the Independent Catholic groups may use the proper ordination ritual. There are also other reasons why the Holy See does not recognise the validity of the orders of the Independent clergy:
* They hold that the continuing practice among many Independent clergy of one person receiving multiple ordinations in order to secure apostolic succession, betrays an incorrect and mechanistic theology of ordination.
* They hold that the practice within Independent groups of ordaining women (such as within certain member communities of the Anglican Communion) demonstrates an understanding of priesthood that they vindicate is totally unacceptable to the Catholic and Eastern Orthodox churches as they believe that the Universal Church does not possess such authority; thus, they uphold that any ceremonies performed by these women should be considered being sacramentally invalid.
Some provinces of the Anglican Communion have begun ordaining women as bishops in recent decades – for example, England, Ireland, Scotland, Wales, the United States, Australia, New Zealand, Canada and Cuba. The first woman to be consecrated a bishop within Anglicanism was Barbara Harris, who was ordained in the United States in 1989. In 2006, Katharine Jefferts Schori, the Episcopal Bishop of Nevada, became the first woman to become the presiding bishop of the Episcopal Church.
(1510–1557), a Finnish Lutheran clergyman and the Bishop of Turku]]
In the Evangelical Lutheran Church in America (ELCA) and the Evangelical Lutheran Church in Canada (ELCIC), the largest Lutheran Church bodies in the United States and Canada, respectively, and roughly based on the Nordic Lutheran national churches (similar to that of the Church of England), bishops are elected by Synod Assemblies, consisting of both lay members and clergy, for a term of six years, which can be renewed, depending upon the local synod's "constitution" (which is mirrored on either the ELCA or ELCIC's national constitution). Since the implementation of concordats between the ELCA and the Episcopal Church of the United States and the ELCIC and the Anglican Church of Canada, all bishops, including the presiding bishop (ELCA) or the national bishop (ELCIC), have been consecrated using the historic succession in line with bishops from the Evangelical Lutheran Church of Sweden, with at least one Anglican bishop serving as co-consecrator.
Since going into ecumenical communion with their respective Anglican body, bishops in the ELCA or the ELCIC not only approve the "rostering" of all ordained pastors, diaconal ministers, and associates in ministry, but they serve as the principal celebrant of all pastoral ordination and installation ceremonies, diaconal consecration ceremonies, as well as serving as the "chief pastor" of the local synod, upholding the teachings of Martin Luther as well as the documentations of the Ninety-Five Theses and the Augsburg Confession. Unlike their counterparts in the United Methodist Church, ELCA and ELCIC synod bishops do not appoint pastors to local congregations (pastors, like their counterparts in the Episcopal Church, are called by local congregations). The presiding bishop of the ELCA and the national bishop of the ELCIC, the national bishops of their respective bodies, are elected for a single 6-year term and may be elected to an additional term.
Although ELCA agreed with the Episcopal Church to limit ordination to the bishop "ordinarily", ELCA pastor-ordinators are given permission to perform the rites in "extraordinary" circumstance. In practice, "extraordinary" circumstance have included disagreeing with Episcopalian views of the episcopate, and as a result, ELCA pastors ordained by other pastors are not permitted to be deployed to Episcopal Churches (they can, however, serve in Presbyterian Church USA, United Methodist Church, Reformed Church in America, and Moravian Church congregations, as the ELCA is in full communion with these denominations). The Lutheran Church–Missouri Synod (LCMS) and the Wisconsin Evangelical Lutheran Synod (WELS), the second and third largest Lutheran bodies in the United States and the two largest Confessional Lutheran bodies in North America, do not follow an episcopal form of governance, settling instead on a form of quasi-congregationalism patterned off what they believe to be the practice of the early church. The second largest of the three predecessor bodies of the ELCA, the American Lutheran Church, was a congregationalist body, with national and synod presidents before they were re-titled as bishops (borrowing from the Lutheran churches in Germany) in the 1980s. With regard to ecclesial discipline and oversight, national and synod presidents typically function similarly to bishops in episcopal bodies. Methodism African Methodist Episcopal ChurchIn the African Methodist Episcopal Church, "Bishops are the Chief Officers of the Connectional Organization. They are elected for life by a majority vote of the General Conference which meets every four years." Christian Methodist Episcopal Church In the Christian Methodist Episcopal Church in the United States, bishops are administrative superintendents of the church; they are elected by "delegate" votes for as many years deemed until the age of 74, then the bishop must retire. Among their duties, are responsibility for appointing clergy to serve local churches as pastor, for performing ordinations, and for safeguarding the doctrine and discipline of the church. The General Conference, a meeting every four years, has an equal number of clergy and lay delegates. In each Annual Conference, CME bishops serve for four-year terms. In 2010, Teresa E. Jefferson-Snorton was elected as a bishop, becoming the first woman to hold that position. As of 2024, she remains the only female bishop in CME.
United Methodist Church
In the United Methodist Church (the largest branch of Methodism in the world) bishops serve as administrative and pastoral superintendents of the church. They are elected for life from among the ordained elders (presbyters) by vote of the delegates in regional (called jurisdictional) conferences, and are consecrated by the other bishops present at the conference through the laying on of hands. In the United Methodist Church bishops remain members of the "Order of Elders" while being consecrated to the "Office of the Episcopacy". Within the United Methodist Church only bishops are empowered to consecrate bishops and ordain clergy. Among their most critical duties is the ordination and appointment of clergy to serve local churches as pastor, presiding at sessions of the Annual, Jurisdictional, and General Conferences, providing pastoral ministry for the clergy under their charge, and safeguarding the doctrine and discipline of the church. Furthermore, individual bishops, or the Council of Bishops as a whole, often serve a prophetic role, making statements on important social issues and setting forth a vision for the denomination, though they have no legislative authority of their own. In all of these areas, bishops of the United Methodist Church function very much in the historic meaning of the term. According to the Book of Discipline of the United Methodist Church, a bishop's responsibilities are:
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In each Annual Conference, United Methodist bishops serve for four-year terms, and may serve up to three terms before either retirement or appointment to a new Conference. United Methodist bishops may be male or female, with Marjorie Matthews being the first woman to be consecrated a bishop in 1980.
's ordination as bishop by Thomas Coke at the 1784 Christmas Conference]]
The collegial expression of episcopal leadership in the United Methodist Church is known as the Council of Bishops. The Council of Bishops speaks to the church and through the church into the world and gives leadership in the quest for Christian unity and interreligious relationships. The Conference of Methodist Bishops includes the United Methodist Council of Bishops plus bishops from affiliated autonomous Methodist or United Churches.
John Wesley consecrated Thomas Coke a "General Superintendent", and directed that Francis Asbury also be consecrated for the United States of America in 1784, where the Methodist Episcopal Church first became a separate denomination apart from the Church of England. Coke soon returned to England, but Asbury was the primary builder of the new church. At first he did not call himself bishop, but eventually submitted to the usage by the denomination.
Notable bishops in United Methodist history include Coke, Asbury, Richard Whatcoat, Philip William Otterbein, Martin Boehm, Jacob Albright, John Seybert, Matthew Simpson, John S. Stamm, William Ragsdale Cannon, Marjorie Matthews, Leontine T. Kelly, William B. Oden, Ntambo Nkulu Ntanda, Joseph Sprague, William Henry Willimon, and Thomas Bickerton.
The Church of Jesus Christ of Latter-day Saints
In The Church of Jesus Christ of Latter-day Saints, the Bishop is the leader of a local congregation, called a ward. As with most LDS priesthood holders, the bishop is a part-time lay minister and earns a living through other employment. As such, it is his duty to preside, call local leaders, and judge the worthiness of members for certain activities. The bishop does not deliver sermons at every service (generally asking members to do so), but is expected to be a spiritual guide for his congregation. It is therefore believed that he has both the right and ability to receive divine inspiration (through the Holy Spirit) for the ward under his direction. Because it is a part-time position, all able members are expected to assist in the management of the ward by holding delegated lay positions (for example, women's and youth leaders, teachers) referred to as callings. The bishop is especially responsible for leading the youth, in connection with the fact that a bishop is the president of the Aaronic priesthood in his ward (and is thus a form of Mormon Kohen). Although members are asked to confess serious sins to him, unlike the Catholic Church, he is not the instrument of divine forgiveness, but merely a guide through the repentance process (and a judge in case transgressions warrant excommunication or other official discipline). The bishop is also responsible for the physical welfare of the ward, and thus collects tithing and fast offerings and distributes financial assistance where needed.
A literal descendant of Aaron has "legal right" to act as a bishop after being found worthy and ordained by the First Presidency. In the absence of a literal descendant of Aaron, a high priest in the Melchizedek priesthood is called to be a bishop. In special circumstances (such as a ward consisting entirely of young university students), a bishop may be chosen from outside the ward. Traditionally, bishops are married, though this is not always the case. A bishop is typically released after about five years and a new bishop is called to the position. Although the former bishop is released from his duties, he continues to hold the Aaronic priesthood office of bishop. Church members frequently refer to a former bishop as "Bishop" as a sign of respect and affection.
Latter-day Saint bishops do not wear any special clothing or insignia the way clergy in many other churches do, but are expected to dress and groom themselves neatly and conservatively per their local culture, especially when performing official duties. Bishops (as well as other members of the priesthood) can trace their line of authority back to Joseph Smith, who, according to church doctrine, was ordained to lead the church in modern times by the ancient apostles Peter, James, and John, who were ordained to lead the Church by Jesus Christ.
At the global level, the presiding bishop oversees the temporal affairs (buildings, properties, commercial corporations, and so on) of the worldwide church, including the church's massive global humanitarian aid and social welfare programs. The presiding bishop has two counselors; the three together form the presiding bishopric. As opposed to ward bishoprics, where the counselors do not hold the office of bishop, all three men in the presiding bishopric hold the office of bishop, and thus the counselors, as with the presiding bishop, are formally referred to as "Bishop".
Irvingism
New Apostolic Church
The New Apostolic Church (NAC) knows three classes of ministries: Deacons, Priests and Apostles. The Apostles, who are all included in the apostolate with the Chief Apostle as head, are the highest ministries.
Of the several kinds of priest....ministries, the bishop is the highest. Nearly all bishops are set in line directly from the chief apostle. They support and help their superior apostle.
Pentecostalism
Church of God in Christ
In the Church of God in Christ (COGIC), the ecclesiastical structure is composed of large dioceses that are called "jurisdictions" within COGIC, each under the authority of a bishop, sometimes called "state bishops". They can either be made up of large geographical regions of churches or churches that are grouped and organized together as their own separate jurisdictions because of similar affiliations, regardless of geographical location or dispersion. Each state in the U.S. has at least one jurisdiction while others may have several more, and each jurisdiction is usually composed of between 30 and 100 churches. Each jurisdiction is then broken down into several districts, which are smaller groups of churches (either grouped by geographical situation or by similar affiliations) which are each under the authority of District Superintendents who answer to the authority of their jurisdictional/state bishop. There are currently over 170 jurisdictions in the United States, and over 30 jurisdictions in other countries. The bishops of each jurisdiction, according to the COGIC Manual, are considered to be the modern day equivalent in the church of the early apostles and overseers of the New Testament church, and as the highest ranking clergymen in the COGIC, they are tasked with the responsibilities of being the head overseers of all religious, civil, and economic ministries and protocol for the church denomination. They also have the authority to appoint and ordain local pastors, elders, ministers, and reverends within the denomination. The bishops of the COGIC denomination are all collectively called "The Board of Bishops". From the Board of Bishops, and the General Assembly of the COGIC, the body of the church composed of clergy and lay delegates that are responsible for making and enforcing the bylaws of the denomination, every four years, twelve bishops from the COGIC are elected as "The General Board" of the church, who work alongside the delegates of the General Assembly and Board of Bishops to provide administration over the denomination as the church's head executive leaders. One of twelve bishops of the General Board is also elected the "presiding bishop" of the church, and two others are appointed by the presiding bishop himself, as his first and second assistant presiding bishops.
Bishops in the Church of God in Christ usually wear black clergy suits which consist of a black suit blazer, black pants, a purple or scarlet clergy shirt and a white clerical collar, which is usually referred to as "Class B Civic attire". Bishops in COGIC also typically wear the Anglican Choir Dress style vestments of a long purple or scarlet chimere, cuffs, and tippet worn over a long white rochet, and a gold pectoral cross worn around the neck with the tippet. This is usually referred to as "Class A Ceremonial attire". The bishops of COGIC alternate between Class A Ceremonial attire and Class B Civic attire depending on the protocol of the religious services and other events they have to attend."
The above understanding is part of the basis of Adventist organizational structure. The world wide Seventh-day Adventist church is organized into local districts, conferences or missions, union conferences or union missions, divisions, and finally at the top is the general conference. At each level (with exception to the local districts), there is an elder who is elected president and a group of elders who serve on the executive committee with the elected president. Those who have been elected president would in effect be the "bishop" while never actually carrying the title or ordained as such because the term is usually associated with the episcopal style of church governance most often found in Catholic, Anglican, Methodist and some Pentecostal/Charismatic circles.
Others
Some Baptists also have begun taking on the title of bishop.
In some smaller Protestant denominations and independent churches, the term bishop is used in the same way as pastor, to refer to the leader of the local congregation, and may be male or female. This usage is especially common in African-American churches in the US.
In the Church of Scotland, which has a Presbyterian church structure, the word "bishop" refers to an ordained person, usually a normal parish minister, who has temporary oversight of a trainee minister. In the Presbyterian Church (USA), the term bishop is an expressive name for a Minister of Word and Sacrament who serves a congregation and exercises "the oversight of the flock of Christ." The term is traceable to the 1789 Form of Government of the PC (USA) and the Presbyterian understanding of the pastoral office.
While not considered orthodox Christian, the Ecclesia Gnostica Catholica uses roles and titles derived from Christianity for its clerical hierarchy, including bishops who have much the same authority and responsibilities as in Catholicism.
The Salvation Army does not have bishops but has appointed leaders of geographical areas, known as Divisional Commanders. Larger geographical areas, called Territories, are led by a Territorial Commander, who is the highest-ranking officer in that Territory.
Jehovah's Witnesses do not use the title 'Bishop' within their organizational structure, but appoint elders to be overseers (to fulfill the role of oversight) within their congregations.
, the German Lutheran missionary from Rhenish Missionary Society, also first Ephorus of the Batak Christian Protestant Church]]
The Batak Christian Protestant Church of Indonesia, the most prominent Protestant denomination in Indonesia, uses the term Ephorus instead of bishop.
In the Vietnamese syncretist religion of Caodaism, bishops () comprise the fifth of nine hierarchical levels, and are responsible for spiritual and temporal education as well as record-keeping and ceremonies in their parishes. At any one time there are seventy-two bishops. Their authority is described in Section I of the text (revealed through seances in December 1926). Caodai bishops wear robes and headgear of embroidered silk depicting the Divine Eye and the Eight Trigrams. (The color varies according to branch.) This is the full ceremonial dress; the simple version consists of a seven-layered turban.
Dress and insignia in Christianity
Traditionally, a number of items are associated with the office of a bishop, most notably the mitre and the crosier. Other vestments and insignia vary between Eastern and Western Christianity.
In the Latin Rite of the Catholic Church, the choir dress of a bishop includes the purple cassock with amaranth trim, rochet, purple zucchetto (skull cap), purple biretta, and pectoral cross. The cappa magna may be worn, but only within the bishop's own diocese and on especially solemn occasions. The mitre, zucchetto, and stole are generally worn by bishops when presiding over liturgical functions. For liturgical functions other than the Mass the bishop typically wears the cope. Within his own diocese and when celebrating solemnly elsewhere with the consent of the local ordinary, he also uses the crosier. When celebrating Mass, a bishop, like a priest, wears the chasuble. The Caeremoniale Episcoporum recommends, but does not impose, that in solemn celebrations a bishop should also wear a dalmatic, which can always be white, beneath the chasuble, especially when administering the sacrament of holy orders, blessing an abbot or abbess, and dedicating a church or an altar. The Caeremoniale Episcoporum no longer makes mention of episcopal gloves, episcopal sandals, liturgical stockings (also known as buskins), or the accoutrements that it once prescribed for the bishop's horse. The coat of arms of a Latin Church Catholic bishop usually displays a galero with a cross and crosier behind the escutcheon; the specifics differ by location and ecclesiastical rank (see Ecclesiastical heraldry).
Anglican bishops generally make use of the mitre, crosier, ecclesiastical ring, purple cassock, purple zucchetto, and pectoral cross. However, the traditional choir dress of Anglican bishops retains its late mediaeval form, and looks quite different from that of their Catholic counterparts; it consists of a long rochet which is worn with a chimere.
In the Eastern Churches (Eastern Orthodox, Eastern Rite Catholic) a bishop will wear the mandyas, panagia (and perhaps an enkolpion), sakkos, omophorion and an Eastern-style mitre. Eastern bishops do not normally wear an episcopal ring; the faithful kiss (or, alternatively, touch their forehead to) the bishop's hand. To seal official documents, he will usually use an inked stamp. An Eastern bishop's coat of arms will normally display an Eastern-style mitre, cross, eastern style crosier and a red and white (or red and gold) mantle. The arms of Oriental Orthodox bishops will display the episcopal insignia (mitre or turban) specific to their own liturgical traditions. Variations occur based upon jurisdiction and national customs.
Cathedra
In Catholic, Eastern Orthodox, Oriental Orthodox, Lutheran and Anglican cathedrals there is a special chair set aside for the exclusive use of the bishop. This is the bishop's cathedra and is often called the throne. In some Christian denominations, for example, the Anglican Communion, parish churches may maintain a chair for the use of the bishop when he visits; this is to signify the parish's union with the bishop.
<gallery widths"160" heights"200">
File:Kyr-Jonas presovsky-arcibiskup-a-metropolita-1.jpg|Byzantine Rite Catholic bishop in non-liturgical clothing
File:Bishop Trevor Williams.jpg|An Anglican bishop with a crosier, wearing a rochet under a red chimere and cuffs, a black tippet, and a pectoral cross
File:BishopThom.jpg|An Episcopal bishop immediately before presiding at the Great Vigil of Easter in the narthex of St. Michael's Episcopal Cathedral in Boise, Idaho.
File:Ephorus HKBP (cropped).jpg|An Ephorus of the Batak Christian Protestant Church in Indonesia, one of the largest Lutheran churches in Southeast Asia, wearing uses white bands and Geneva gown
</gallery>
The term's use in non-Christian religions
Buddhism
The leader of the Buddhist Churches of America (BCA) is their bishop, The Japanese title for the bishop of the BCA is , although the English title is favored over the Japanese. When it comes to many other Buddhist terms, the BCA chose to keep them in their original language (terms such as and ), but with some words (including ), they changed/translated these terms into English words.
Between 1899 and 1944, the BCA held the name Buddhist Mission of North America. The leader of the Buddhist Mission of North America was called (superintendent/director) between 1899 and 1918. In 1918 the was promoted to bishop (). However, according to George J. Tanabe, the title "bishop" was in practice already used by Hawaiian Shin Buddhists (in Honpa Hongwanji Mission of Hawaii) even when the official title was kantoku.
Bishops are also present in other Japanese Buddhist organizations. Higashi Hongan-ji's North American District, Honpa Honganji Mission of Hawaii, Jodo Shinshu Buddhist Temples of Canada, a Jodo Shu temple in Los Angeles, the Shingon temple Koyasan Buddhist Temple, Sōtō Mission in Hawai‘i (a Soto Zen Buddhist institution), and the Sōtō Zen Buddhist Community of South America () all have or have had leaders with the title bishop. As for the Sōtō Zen Buddhist Community of South America, the Japanese title is , but the leader is in practice referred to as "bishop". Tenrikyo Tenrikyo is a Japanese New Religion with influences from both Shinto and Buddhism. The leader of the Tenrikyo North American Mission has the title of bishop. See also
<!-- please keep entries in alphabetical order -->
* Anglican ministry#Bishops
* Appointment of Catholic bishops
* Appointment of Church of England bishops
* Bishop in Europe
* Bishops in the Catholic Church
* Bishop of Alexandria, or Pope
* Bishops in the Church of Scotland
* Diocesan bishop
* Ecclesiastical polity (church governance)
** Congregationalist polity
** Presbyterian polity
* Ganzibra
* Gay bishops
* Hierarchy of the Catholic Church
* List of Catholic bishops of the United States
* List of metropolitans and patriarchs of Moscow
* List of types of spiritual teachers
* List of Lutheran bishops and archbishops
* Lists of patriarchs, archbishops, and bishops
* Lord Bishop
* Order of precedence in the Catholic Church
* Shepherd in religion
* Spokesperson bishops in the Church of England
* Suffragan Bishop in Europe
Notes
References
Citations
Sources
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* |last1Cross|first1=Frank Leslie}}
* |last1Mitchell|first1Margaret M.}}
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External links
* [https://web.archive.org/web/20080504105638/http://www.revneal.org/Writings/apostoli.htm Methodist/Anglican Thoughts On Apostolic Succession] by Gregory Neal
* [https://web.archive.org/web/20080515120521/http://www.revneal.org/Writings/methepisc.htm Methodist Episcopacy: In Search of Holy Orders] by Gregory Neal
*
* [http://www.toccusa.org The Old Catholic Church, Province of the United States]
* [http://ecumenical-catholic-communion.org/ The Ecumenical Catholic Communion]* [https://web.archive.org/web/20080220092324/http://bishops.umc.org/interior.asp?ptid21&mid5855 The United Methodist Church: Council of Bishops]
* [https://www.vatican.va/archive/cdc/index.htm Vatican Website with Canon Law of Catholic Church]
* [https://fearof.org/episcophobia/ Episcophobia: The Fear of bishops]
Category:Christian terminology
Category:Ecclesiastical titles
Category:Episcopacy in Eastern Orthodoxy
Category:Episcopacy in Oriental Orthodoxy
Category:Anglican episcopal offices
Category:Methodism
Category:Religious leadership roles
Bishop | https://en.wikipedia.org/wiki/Bishop | 2025-04-05T18:26:41.155376 |
4093 | Bertrand Andrieu | , 1798]]
Bertrand Andrieu (24 November 1761 – 6 December 1822) was a French engraver of medals. He was born in Bordeaux. In France, he was considered as the restorer of the art, which had declined after the time of Louis XIV. During the last twenty years of his life, the French government commissioned him to undertake every major work of importance.
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External links
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Category:1761 births
Category:1822 deaths
Category:Artists from Bordeaux
Category:18th-century French engravers
Category:19th-century French engravers
Category:19th-century French male artists
Category:French medallists
Category:18th-century French male artists | https://en.wikipedia.org/wiki/Bertrand_Andrieu | 2025-04-05T18:26:41.157827 |
4097 | Bordeaux | |demonym = Bordelais
|commune status = Prefecture and commune
|image = Place de la Bourse
|image2 = Cite du vin Bordeaux 2017 (37500642606).jpg Cité du Vin
|image3 = France-001698 - Triumph of the Republic (South Side) (15031012263).jpg Monument aux Girondins
|image4 = Bordeaux (33) Cathédrale Saint-André Tour Pey Berland 01.jpgTour Pey-Berland
|image5 = Puerta de Burdeos.JPGThe big bell of Bordeaux
|image6 = Bordeaux Opera.jpgBordeaux Opera
|image7 = Cathedrale St Andre, lieu de vie.jpgCathédrale Saint-André de Bordeaux at night
|image8 = Bordeaux (2418988310).jpg Pont de Pierre
}}
|caption = From top to bottom, left to right: Place de la Bourse, Cité du Vin, Monument aux Girondins, Tour Pey-Berland, Grosse Cloche, Grand Théâtre de Bordeaux, Saint-André Cathedral and Pont de pierre on the Garonne
|image coat of arms = Coat of Arms of Bordeaux (Chief of France Moderne).svg
|image flag = Flag of Bordeaux, France.gif
|city motto Lilia sola regunt lunam undas castra leonem.<br />"The fleur-de-lis alone rules over the moon, the waves, the castle, and the lion" (in French: "Les lys règnent seuls sur la lune, les ondes, la forteresse et le lion.")
|coordinates
|INSEE = 33063
|arrondissement = Bordeaux
|canton = 5 cantons
|intercommunality = Bordeaux Métropole
|mayor Pierre Hurmic
|party = The Greens
|term = 2020–2026
|area km2 = 49.36
|population =
|population date =
|population footnotes =
|population ranking = 9th in France
|urban area km2 = 1,287.3
|urban area date 2020
|urban pop = 994920
|urban pop date Jan. 2020
|metro area km2 = 6315.6
|metro area date 2020
|metro area pop = 1376375
|metro area pop dateJan. 2020
|website =
}}
Bordeaux (, ; ; Gascon ; ) is a city on the river Garonne in the Gironde department, southwestern France. A port city, it is the capital of the Nouvelle-Aquitaine region, as well as the prefecture of the Gironde department. Its inhabitants are called "Bordelais (masculine) or "Bordelaises (feminine). The term "Bordelais" may also refer to the city and its surrounding region.
The city of Bordeaux proper had a population of 259,809 in 2020 within its small municipal territory of , but together with its suburbs and exurbs the Bordeaux metropolitan area had a population of 1,376,375 that same year (Jan. 2020 census), is the fifth most populated metropolitan council in France after those of Paris, Marseille, Lyon and Lille.
Bordeaux is a world capital of wine: many châteaux and vineyards stand on the hillsides of the Gironde, and the city is home to the world's main wine fair, Vinexpo. Bordeaux is also one of the centers of gastronomy and business tourism for the organization of international congresses. It is a central and strategic hub for the aeronautics, military and space sector, home to major companies such as Dassault Aviation, ArianeGroup, Safran and Thales. The link with aviation dates back to 1910, the year the first airplane flew over the city. A crossroads of knowledge through university research, it is home to one of the only two megajoule lasers in the world, as well as a university population of more than 130,000 students within the Bordeaux Metropolis.
Bordeaux is an international tourist destination for its architectural and cultural heritage with more than 362 historic monuments, making it, after Paris, the city with the most listed or registered monuments in France. The "Pearl of Aquitaine" has been voted European Destination of the year in a 2015 online poll. The metropolis has also received awards and rankings by international organizations such as in 1957, Bordeaux was awarded the Europe Prize for its efforts in transmitting the European ideal. In June 2007, the Port of the Moon in historic Bordeaux was inscribed on the UNESCO World Heritage List, for its outstanding architecture and urban ensemble and in recognition of Bordeaux's international importance over the last 2000 years. Bordeaux is also ranked as a Sufficiency city by the Globalization and World Cities Research Network. History 5th century BC to 11th century AD
Around 300 BC, the region was the settlement of a Celtic tribe, the Bituriges Vivisci, who named the town Burdigala, probably of Aquitanian origin.
In 107 BC, the Battle of Burdigala was fought by the Romans who were defending the Allobroges, a Gallic tribe allied to Rome, and the Tigurini led by Divico. The Romans were defeated and their commander, the consul Lucius Cassius Longinus, was killed in battle.
The city came under Roman rule around 60 BC, and it became an important commercial centre for tin and lead. During this period were built the amphitheatre and the monument Les Piliers de Tutelle.
In 276 AD, it was sacked by the Vandals. The Vandals attacked again in 409, followed by the Visigoths in 414, and the Franks in 498, and afterwards the city fell into a period of relative obscurity.
, 5th–1st century BC, derived from the coin designs of Greeks in pre-Roman Gaul. Cabinet des Médailles.]]
tremisses minted in Bordeaux by the Church of Saint-Étienne, late sixth century. British Museum.]]
In the late 6th century AD the city re-emerged as the seat of a county and an archdiocese within the Merovingian kingdom of the Franks, but royal Frankish power was never strong. The city started to play a regional role as a major urban center on the fringes of the newly founded Frankish Duchy of Vasconia. Around 585 Gallactorius was made Count of Bordeaux and fought the Basques.
In 732, the city was plundered by the troops of Abd er Rahman who stormed the fortifications and overwhelmed the Aquitanian garrison. Duke Eudes mustered a force to engage the Umayyads, eventually engaging them in the Battle of the River Garonne somewhere near the river Dordogne. The battle had a high death toll, and although Eudes was defeated he had enough troops to engage in the Battle of Poitiers and so retain his grip on Aquitaine.
In 737, following his father Eudes's death, the Aquitanian duke Hunald led a rebellion to which Charles responded by launching an expedition that captured Bordeaux. However, it was not retained for long, during the following year the Frankish commander clashed in battle with the Aquitanians but then left to take on hostile Burgundian authorities and magnates. In 745 Aquitaine faced another expedition where Charles's sons Pepin and Carloman challenged Hunald's power and defeated him. Hunald's son Waifer replaced him and confirmed Bordeaux as the capital city (along with Bourges in the north).
During the last stage of the war against Aquitaine (760–768), it was one of Waifer's last important strongholds to fall to the troops of King Pepin the Short. Charlemagne built the fortress of Fronsac (Frontiacus, Franciacus) near Bordeaux on a hill across the border with the Basques (Wascones), where Basque commanders came and pledged their loyalty (769).
In 778, Seguin (or Sihimin) was appointed count of Bordeaux, probably undermining the power of the Duke Lupo, and possibly leading to the Battle of Roncevaux Pass. In 814, Seguin was made Duke of Vasconia, but was deposed in 816 for failing to suppress a Basque rebellion. Under the Carolingians, sometimes the Counts of Bordeaux held the title concomitantly with that of Duke of Vasconia. They were to keep the Basques in check and defend the mouth of the Garonne from the Vikings when they appeared in c. 844. In Autumn 845, the Vikings were raiding Bordeaux and Saintes, count Seguin II marched on them but was captured and executed.
Although the port of Bordeaux was a buzzing trade center, the stability and success of the city was threatened by Viking and Norman incursions and political instability. The restoration of the Ramnulfid Dukes of Aquitaine under William IV and his successors (known as the House of Poitiers) brought continuity of government.
12th century to 15th century, the English era
From the 12th to the 15th century, Bordeaux flourished once more following the marriage of Eléonore, Duchess of Aquitaine and the last of the House of Poitiers, to Henry II Plantagenêt, Count of Anjou and the grandson of Henry I of England, who succeeded to the English crown months after their wedding, bringing into being the vast Angevin Empire, which stretched from the Pyrenees to Ireland. After granting a tax-free trade status with England, Henry was adored by the locals as they could be even more profitable in the wine trade, their main source of income, and the city benefited from imports of cloth and wheat. The belfry (Grosse Cloche) and city cathedral St-André were built, the latter in 1227, incorporating the artisan quarter of Saint-Paul. Under the terms of the Treaty of Brétigny it became briefly the capital of an independent state (1362–1372) under Edward, the Black Prince, but after the Battle of Castillon (1453) it was annexed by France. 15th century to 17th century
In 1462, Bordeaux created a local parliament.
Bordeaux adhered to the Fronde, being effectively annexed to the Kingdom of France only in 1653, when the army of Louis XIV entered the city.
18th century, the golden era
in 1759]]
The 18th century saw another golden age of Bordeaux. The Port of the Moon supplied the majority of Europe with coffee, cocoa, sugar, cotton and indigo, becoming France's busiest port and the second busiest port in the world after London. In total, the Bordeaux shipowners deported 150,000 Africans in some 500 expeditions.
French Revolution: political disruption and loss of the most profitable colony
At the beginning of the French Revolution (1789), many local revolutionaries were members of the Girondists. This Party represented the provincial bourgeoisie, favorable towards abolishing aristocracy privileges, but opposed to the Revolution's social dimension. The Gironde valley's economic value and significance was satiated by the city's commercial power which was in dire contrast to the emerging widespread poverty affecting its inhabitants. Trade and commerce were the driving factors in the region's economic prosperity, still this resulted in a significant number of locals struggling to survive on a daily basis due to lack of food and resources. This socioeconomic disparity served as fertile ground for discontent, sparking frequent episodes of mass unrest well before the tumultuous events of 1783. [1]
In 1793, the Montagnards led by Robespierre and Marat came to power. Fearing a bourgeois misappropriation of the Revolution, they executed a great number of Girondists. During the purge, the local Montagnard Section renamed the city of Bordeaux "Commune-Franklin" (Franklin-municipality) in homage to Benjamin Franklin.
At the same time, in 1791, a slave revolt broke out at Saint-Domingue (current Haiti), the most profitable of the French colonies. In the lively era of the 18th century, Bordeaux emerged as a center of economic activity, particularly known at first for its successful wine trade. The city's placement along the Gironde River was very strategic, helping to facilitate the transportation of produce to markets both internationally and domestically, which led to an increase in exports and Bordeaux's economic prosperity. There was a significant transformation to the economic landscape of Bordeaux in 1785, which was spurred by the attraction of large profits, traders and merchants in Bordeaux began to turn their attention to the slave trade. This was a very important moment in the city's economic history seeing as it diversified its commercial expansion, at a serious moral cost. This introduced a new layer of difficulty to Bordeaux's economic activities. Even though it brought along significant wealth to certain segments of society, it complicated the socio-economic inconsistencies within the region. The entry into the slave trade brought even more tension within Bordeaux society. The trade exacerbated the divide between an elite with growing wealth and those living in poverty. This economic divide laid out the foundation for the mass unrest that would break out in the French Revolution. [2]
Three years later, the Montagnard Convention abolished slavery. In 1802, Napoleon revoked the manumission law but lost the war against the army of former slaves. In 1804, Haiti became independent. The loss of this "Pearl" of the West Indies generated the collapse of Bordeaux's port economy, which was dependent on the colonial trade and trade in slaves.
Towards the end of the Peninsular War of 1814, the Duke of Wellington sent William Beresford with two divisions and seized Bordeaux, encountering little resistance. Bordeaux was largely anti-Bonapartist and the majority supported the Bourbons. The British troops were treated as liberators. Distinguished historian of the French revolution Suzanne Desan explains that "examining intricate local dynamics" is essential to studying the Revolution by region. [3]
19th century, rebirth of the economy
in 1899]]
From the Bourbon Restoration, the economy of Bordeaux was rebuilt by traders and shipowners. They engaged to construct the first bridge of Bordeaux, and customs warehouses. The shipping traffic grew through the new African colonies.
Georges-Eugène Haussmann, a longtime prefect of Bordeaux, used Bordeaux's 18th-century large-scale rebuilding as a model when he was asked by Emperor Napoleon III to transform the quasi-medieval Paris into a "modern" capital that would make France proud. Victor Hugo found the town so beautiful he said: "Take Versailles, add Antwerp, and you have Bordeaux".
In 1870, at the beginning of the Franco-Prussian war against Prussia, the French government temporarily relocated to Bordeaux from Paris. 21st century, listed as World heritage In 2007, 40% of the city surface area, located around the Port of the Moon, was listed as World Heritage Site. UNESCO inscribed Bordeaux as "an inhabited historic city, an outstanding urban and architectural ensemble, created in the age of the Enlightenment, whose values continued up to the first half of the 20th century, with more protected buildings than any other French city except Paris".
Geography
in Bordeaux in 2019]]
Bordeaux is located close to the European Atlantic coast, in the southwest of France and in the north of the Aquitaine region. It is around southwest of Paris. The city is built on a bend of the river Garonne, and is divided into two parts: the right bank to the east and left bank in the west. Historically the left bank is more developed because when flowing outside the bend, the water makes a furrow of the required depth to allow the passing of merchant ships, which used to offload on this side of the river. But, today, the right bank is developing, including new urban projects. In Bordeaux, the Garonne River is accessible to ocean liners through the Gironde estuary. The right bank of the Garonne is a low-lying, often marshy plain. Climate Bordeaux's climate can be classified as oceanic (Köppen climate classification Cfb), bordering on a humid subtropical climate (Cfa). However, the Trewartha climate classification system classifies the city as solely humid subtropical, due to a recent rise in temperatures related – to some degree or another – to climate change and the city's urban heat island.
The city enjoys cool to mild, wet winters, due to its relatively southerly latitude, and the prevalence of mild, westerly winds from the Atlantic. Its summers are warm and somewhat drier, although wet enough to avoid a Mediterranean classification. Frosts occur annually, but snowfall is quite infrequent, occurring for no more than 3–4 days a year. The summer of 2003 set a record with an average temperature of , while February 1956 was the coldest month on record with an average temperature of −2.00 °C at Bordeaux Mérignac-Airport.
, 1991–2020 normals, extremes 1920–present
|collapsed |metric first Y
|single line = Y
|Jan record high C = 20.8
|Feb record high C = 26.2
|Mar record high C = 27.7
|Apr record high C = 31.1
|May record high C = 35.4
|Jun record high C = 40.5
|Jul record high C = 41.2
|Aug record high C = 40.7
|Sep record high C = 37.0
|Oct record high C = 32.2
|Nov record high C = 26.7
|Dec record high C = 22.5
|year record high C = 41.2
|Jan high C = 10.5
|Feb high C = 12.0
|Mar high C = 15.5
|Apr high C = 18.0
|May high C = 21.7
|Jun high C = 25.0
|Jul high C = 27.1
|Aug high C = 27.6
|Sep high C = 24.2
|Oct high C = 19.6
|Nov high C = 14.1
|Dec high C = 11.0
|year high C = 18.9
|Jan mean C = 7.1
|Feb mean C = 7.8
|Mar mean C = 10.7
|Apr mean C = 13.0
|May mean C = 16.6
|Jun mean C = 19.8
|Jul mean C = 21.7
|Aug mean C = 21.9
|Sep mean C = 18.8
|Oct mean C = 15.2
|Nov mean C = 10.4
|Dec mean C = 7.7
|year mean C = 14.2
|Jan low C = 3.7
|Feb low C = 3.6
|Mar low C = 5.8
|Apr low C = 8.0
|May low C = 11.4
|Jun low C = 14.6
|Jul low C = 16.2
|Aug low C = 16.3
|Sep low C = 13.3
|Oct low C = 10.7
|Nov low C = 6.7
|Dec low C = 4.4
|year low C = 9.6
|Jan record low C = -16.4
|Feb record low C = -14.8
|Mar record low C = -9.9
|Apr record low C = -5.3
|May record low C = -1.8
|Jun record low C = 2.5
|Jul record low C = 5.2
|Aug record low C = 4.7
|Sep record low C = -1.8
|Oct record low C = -5.3
|Nov record low C = -7.3
|Dec record low C = -13.4
|year record low C = -16.4
|precipitation colour = green
|Jan precipitation mm = 86.9
|Feb precipitation mm = 66.9
|Mar precipitation mm = 63.3
|Apr precipitation mm = 75.6
|May precipitation mm = 71.1
|Jun precipitation mm = 70.4
|Jul precipitation mm = 48.6
|Aug precipitation mm = 56.7
|Sep precipitation mm = 81.2
|Oct precipitation mm = 83.3
|Nov precipitation mm = 114.5
|Dec precipitation mm = 106.4
|year precipitation mm = 924.9
|unit precipitation days = 1.0 mm
|Jan precipitation days = 12.2
|Feb precipitation days = 10.1
|Mar precipitation days = 10.7
|Apr precipitation days = 11.2
|May precipitation days = 10.0
|Jun precipitation days = 8.3
|Jul precipitation days = 7.1
|Aug precipitation days = 7.0
|Sep precipitation days = 9.3
|Oct precipitation days = 10.7
|Nov precipitation days = 13.3
|Dec precipitation days = 12.7
|year precipitation days = 122.5
|Jan sun = 89.8
|Feb sun = 117.4
|Mar sun = 170.2
|Apr sun = 186.0
|May sun = 220.8
|Jun sun = 237.7
|Jul sun = 256.0
|Aug sun = 248.8
|Sep sun = 208.8
|Oct sun = 150.3
|Nov sun = 100.0
|Dec sun = 84.1
|year sun = 2069.8
|source 1 Meteo France
}}
, 1961–1990 normals and extremes
<!--in the order as it appears in the table, not all of the following data may be available, especially records and days of precipitation -->
|Jan mean C = 6.2
|Feb mean C = 7.5
|Mar mean C = 8.7
|Apr mean C = 11.2
|May mean C = 14.2
|Jun mean C = 17.7
|Jul mean C = 20.2
|Aug mean C = 19.6
|Sep mean C = 17.9
|Oct mean C = 14.3
|Nov mean C = 9.1
|Dec mean C = 6.6
|Jan high C = 9.9
|Feb high C = 11.1
|Mar high C = 13.4
|Apr high C = 16.1
|May high C = 19.4
|Jun high C = 23.2
|Jul high C = 25.9
|Aug high C = 25.5
|Sep high C = 24.0
|Oct high C = 19.3
|Nov high C = 13.2
|Dec high C = 10.0
|Jan avg record high C = 12.6
|Feb avg record high C = 16.3
|Mar avg record high C = 17.1
|Apr avg record high C = 19.5
|May avg record high C = 25.3
|Jun avg record high C = 29.3
|Jul avg record high C = 29.2
|Aug avg record high C = 29.4
|Sep avg record high C = 27.0
|Oct avg record high C = 21.4
|Nov avg record high C = 16.1
|Dec avg record high C = 14.4
|Jan record high C = 19.1
|Feb record high C = 25.0
|Mar record high C = 27.7
|Apr record high C = 28.6
|May record high C = 32.6
|Jun record high C = 37.0
|Jul record high C = 38.8
|Aug record high C = 38.3
|Sep record high C = 37.0
|Oct record high C = 31.5
|Nov record high C = 24.7
|Dec record high C = 22.5
|Jan low C = 2.5
|Feb low C = 3.6
|Mar low C = 4.2
|Apr low C = 6.3
|May low C = 9.1
|Jun low C = 12.4
|Jul low C = 14.3
|Aug low C = 13.9
|Sep low C = 12.2
|Oct low C = 9.2
|Nov low C = 4.7
|Dec low C = 3.2
|Jan avg record low C = -3.1
|Feb avg record low C = -1.8
|Mar avg record low C = -0.1
|Apr avg record low C = 3.7
|May avg record low C = 7.8
|Jun avg record low C = 9.4
|Jul avg record low C = 12.4
|Aug avg record low C = 12.6
|Sep avg record low C = 9.2
|Oct avg record low C = 5.3
|Nov avg record low C = 2.0
|Dec avg record low C = -0.4
|Jan record low C = -16.4
|Feb record low C = -13.2
|Mar record low C = -9.9
|Apr record low C = -3.0
|May record low C = -0.5
|Jun record low C = 4.0
|Jul record low C = 6.9
|Aug record low C = 6.0
|Sep record low C = 2.2
|Oct record low C = -1.7
|Nov record low C = -7.3
|Dec record low C = -13.0
|precipitation colour = green
|Jan precipitation mm = 92.4
|Feb precipitation mm = 86.9
|Mar precipitation mm = 74.0
|Apr precipitation mm = 69.4
|May precipitation mm = 67.4
|Jun precipitation mm = 51.3
|Jul precipitation mm = 41.2
|Aug precipitation mm = 45.3
|Sep precipitation mm = 72.0
|Oct precipitation mm = 67.8
|Nov precipitation mm = 96.7
|Dec precipitation mm = 79.7
|Jan humidity = 88
|Feb humidity = 84
|Mar humidity = 78
|Apr humidity = 76
|May humidity = 77
|Jun humidity = 76
|Jul humidity = 75
|Aug humidity = 76
|Sep humidity = 79
|Oct humidity = 85
|Nov humidity = 87
|Dec humidity = 88
|year humidity = 80.8
|Jan percentsun = 31
|Feb percentsun = 38
|Mar percentsun = 45
|Apr percentsun = 47
|May percentsun = 47
|Jun percentsun = 53
|Jul percentsun = 59
|Aug percentsun = 58
|Sep percentsun = 56
|Oct percentsun = 49
|Nov percentsun = 36
|Dec percentsun = 31
|Jan sun = 86.3
|Feb sun = 108.8
|Mar sun = 161.9
|Apr sun = 189.6
|May sun = 211.1
|Jun sun = 242.2
|Jul sun = 276.3
|Aug sun = 248.7
|Sep sun = 207.1
|Oct sun = 165.4
|Nov sun = 103.2
|Dec sun = 83.0
|unit precipitation days = 1.0 mm
|Jan precipitation days = 13.1
|Feb precipitation days = 11.5
|Mar precipitation days = 11.7
|Apr precipitation days = 11.2
|May precipitation days = 11.1
|Jun precipitation days = 8.5
|Jul precipitation days = 6.7
|Aug precipitation days = 8.3
|Sep precipitation days = 9.0
|Oct precipitation days = 10.1
|Nov precipitation days = 11.9
|Dec precipitation days = 12.3
|Jan snow days = 1.1
|Feb snow days = 1.2
|Mar snow days = 0.6
|Apr snow days = 0.0
|May snow days = 0.0
|Jun snow days = 0.0
|Jul snow days = 0.0
|Aug snow days = 0.0
|Sep snow days = 0.0
|Oct snow days = 0.0
|Nov snow days = 0.2
|Dec snow days = 0.8
|source NOAA
|source 2 Infoclimat.fr (humidity)
}}
Economy
Bordeaux is a major centre for business in France as it has the sixth largest metropolitan population in France. It serves as a major regional center for trade, administration, services and industry.
Wine
]]
The vine was introduced to the Bordeaux region by the Romans, probably in the mid-first century, to provide wine for local consumption, and wine production has been continuous in the region since.
aerial view]]
Bordeaux wine growing area has about of vineyards, 57 appellations, 10,000 wine-producing estates (châteaux) and 13,000 grape growers. With an annual production of approximately 960 million bottles, the Bordeaux area produces large quantities of everyday wine as well as some of the most expensive wines in the world. Included among the latter are the area's five premier cru (First Growth) red wines (four from Médoc and one, Château Haut-Brion, from Graves), established by the Bordeaux Wine Official Classification of 1855:
Both red and white wines are made in the Bordeaux region. Red Bordeaux wine is called claret in the United Kingdom. Red wines are generally made from a blend of grapes, and may be made from Cabernet Sauvignon, Merlot, Cabernet Franc, Petit verdot, Malbec, and, less commonly in recent years, Carménère.
White Bordeaux is made from Sauvignon blanc, Sémillon, and Muscadelle. Sauternes is a sub-region of Graves known for its intensely sweet, white, dessert wines such as Château d'Yquem.
Because of a wine glut (wine lake) in the generic production, the price squeeze induced by an increasingly strong international competition, and vine pull schemes, the number of growers has recently dropped from 14,000 and the area under vine has also decreased significantly. In the meantime, the global demand for first growths and the most famous labels markedly increased and their prices skyrocketed.
The Cité du Vin, a museum as well as a place of exhibitions, shows, movie projections and academic seminars on the theme of wine opened its doors in June 2016.
Others
The Laser Mégajoule will be one of the most powerful lasers in the world, allowing fundamental research and the development of the laser and plasma technologies.
Some 15,000 people work for the aeronautic industry in Bordeaux. The city has some of the biggest companies including Dassault, EADS Sogerma, Snecma, Thales, SNPE, and others. The Dassault Falcon private jets are built there as well as the military aircraft Rafale and Mirage 2000, the Airbus A380 cockpit, the boosters of Ariane 5, and the M51 SLBM missile.
Tourism, especially wine tourism, is a major industry. Globelink.co.uk mentioned Bordeaux as the best tourist destination in Europe in 2015. Gourmet Touring is a tourism company operating in the Bordeaux wine region.
Access to the port from the Atlantic is via the Gironde estuary. Almost nine million tonnes of goods arrive and leave each year. Major companies
This list includes indigenous Bordeaux-based companies and companies that have major presence in Bordeaux, but are not necessarily headquartered there.
* Arena
* Groupe Bernard
* Groupe Castel
* Cdiscount
* Dassault
* Jock
* Marie Brizard
* McKesson Corporation
* Oxbow
* Ricard
* Sanofi Aventis
* Smurfit Kappa
* Snecma
* Solectron
* Thales Group
* [https://toursinbordeaux.com/ Tours in Bordeaux]
Population
{| class="wikitable floatright"
|+Largest groups of immigrants living in the Bordeaux metropolitan area
|-
! Country of birth || Population (2019)
|-
||| 15,551
|-
||| 15,207
|-
||| 10,006
|-
||| 7,756
|-
||| 4,231
|-
|||2,875
|-
||| 2,683
|-
||| 2,373
|-
||| 2,197
|-
||| 1,784
|-
||| 1,759
|-
||| 1,724
|-
||| 1,603
|-
||| 1,589
|}
In January 2020, there were 259,809 inhabitants in the city proper (commune) of Bordeaux. had its largest population of 284,494 at the 1954 census.
The built-up area has grown for more than a century beyond the municipal borders of Bordeaux due to the small size of the commune () and urban sprawl. By January 2020 there were 1,376,375 people living in the overall metropolitan area (''aire d'attraction'') of Bordeaux, and INSEE They are divided according to the following composition:
{| class="wikitable"
|-
! Party !! Political line !! President !! Seats !! Status
|-
| EELV – PS – PCF – PRG – G.s – ND – PP || Ecologist and left ||Pierre Hurmic ||48 ||majority
|-
| LR – MR – Modem – Agir – UDI – LREM || Right and centre-right ||Nicolas Florian ||14 ||opposition
|-
| NPA – LFI – PG – E ! || Anticapitalist left ||Philippe Poutou ||3 ||opposition
|}
Mayors of Bordeaux
Since the Liberation (1944), there have been six mayors of Bordeaux:
{|class="wikitable"
|-
! Mayor
! Term start
! Term end
! class=unsortable|
! Party
|-
|Fernand Audeguil
|align=center|August 1944
|align=center|19 October 1947
| style="color:inherit;background:" |
|SFIO
|-
|Jacques Chaban-Delmas
|align=center|19 October 1947
|align=center|19 June 1995
| style="color:inherit;background:" |
|RPR
|-
|Alain Juppé
|align=center|19 June 1995
|align=center|13 December 2004
| style="color:inherit;background:" |
|RPR / UMP
|-
|Hugues Martin
|align=center|13 December 2004
|align=center|8 October 2006
| style="color:inherit;background:" |
|UMP
|-
|Alain Juppé
|align=center|8 October 2006
|align=center|7 March 2019
| style="color:inherit;background:" |
|UMP / LR
|-
|Nicolas Florian
|align=center|7 March 2019
|align=center|3 July 2020
| style="color:inherit;background:" |
|LR
|-
|Pierre Hurmic
|align=center|3 July 2020
|align=center|Incumbent
| style="color:inherit;background:" |
|EELV
|-
|}
* RPR was renamed to UMP in 2002 which was later renamed to LR in 2015.
Elections
Presidential elections of 2007
At the 2007 presidential election, the Bordelais gave 31.37% of their votes to Ségolène Royal of the Socialist Party against 30.84% to Nicolas Sarkozy, president of the UMP. Then came François Bayrou with 22.01%, followed by Jean-Marie Le Pen who recorded 5.42%. None of the other candidates exceeded the 5% mark. Nationally, Nicolas Sarkozy led with 31.18%, then Ségolène Royal with 25.87%, followed by François Bayrou with 18.57%. After these came Jean-Marie Le Pen with 10.44%, none of the other candidates exceeded the 5% mark. In the second round, the city of Bordeaux gave Ségolène Royal 52.44% against 47.56% for Nicolas Sarkozy, the latter being elected President of the Republic with 53.06% against 46.94% for Ségolène Royal. The abstention rates for Bordeaux were 14.52% in the first round and 15.90% in the second round.
Parliamentary elections of 2007
In the parliamentary elections of 2007, the left won eight constituencies against only three for the right. After the partial 2008 elections, the eighth district of Gironde switched to the left, bringing the count to nine. In Bordeaux, the left was for the first time in its history the majority as it held two of three constituencies following the elections. In the first division of the Gironde, the outgoing UMP MP Chantal Bourragué was well ahead with 44.81% against 25.39% for the Socialist candidate Béatrice Desaigues. In the second round, it was Chantal Bourragué who was re-elected with 54.45% against 45.55% for his socialist opponent. In the second district of Gironde the UMP mayor and all new Minister of Ecology, Energy, Sustainable Development and the Sea Alain Juppé confronted the General Counsel PS Michèle Delaunay. In the first round, Alain Juppé was well ahead with 43.73% against 31.36% for Michèle Delaunay. In the second round, it was finally Michèle Delaunay who won the election with 50.93% of the votes against 49.07% for Alain Juppé, the margin being only 670 votes. The defeat of the so-called constituency "Mayor" showed that Bordeaux was rocking increasingly left. Finally, in the third constituency of the Gironde, Noël Mamère was well ahead with 39.82% against 28.42% for the UMP candidate Elizabeth Vine. In the second round, Noël Mamère was re-elected with 62.82% against 37.18% for his right-wing rival.
Municipal elections of 2008
In 2008 municipal elections saw the clash between mayor of Bordeaux, Alain Juppé and the President of the Regional Council of Aquitaine Socialist Alain Rousset. The PS had put up a Socialist heavyweight in the Gironde and had put great hopes in this election after the victory of Ségolène Royal and Michèle Delaunay in 2007. However, after a rather exciting campaign it was Alain Juppé who was widely elected in the first round with 56.62 percent, far ahead of Alain Rousset who garnered 34.14 percent of the vote. At present, of the eight cantons that has Bordeaux, five are held by the PS and three by the UMP, the left eating a little each time into the right's numbers.
European elections of 2009
In the European elections of 2009, Bordeaux voters largely voted for the UMP candidate Dominique Baudis, who won 31.54% against 15.00% for PS candidate Kader Arif. The candidate of Europe Ecology José Bové came second with 22.34%. None of the other candidates reached the 10% mark. The 2009 European elections were like the previous ones in eight constituencies. Bordeaux is located in the district "Southwest", here are the results:
UMP candidate Dominique Baudis: 26.89%. His party gained four seats. PS candidate Kader Arif: 17.79%, gaining two seats in the European Parliament. Europe Ecology candidate Bove: 15.83%, obtaining two seats. MoDem candidate Robert Rochefort: 8.61%, winning a seat. Left Front candidate Jean-Luc Mélenchon: 8.16%, gaining the last seat. At regional elections in 2010, the Socialist incumbent president Alain Rousset won the first round by totaling 35.19% in Bordeaux, but this score was lower than the plan for Gironde and Aquitaine. Xavier Darcos, Minister of Labour followed with 28.40% of the votes, scoring above the regional and departmental average. Then came Monique De Marco, Green candidate with 13.40%, followed by the member of Pyrenees-Atlantiques and candidate of the MoDem Jean Lassalle who registered a low 6.78% while qualifying to the second round on the whole Aquitaine, closely followed by Jacques Colombier, candidate of the National Front, who gained 6.48%. Finally the candidate of the Left Front Gérard Boulanger with 5.64%, no other candidate above the 5% mark. In the second round, Alain Rousset had a tidal wave win as national totals rose to 55.83%. If Xavier Darcos largely lost the election, he nevertheless achieved a score above the regional and departmental average obtaining 33.40%. Jean Lassalle, who qualified for the second round, passed the 10% mark by totaling 10.77%. The ballot was marked by abstention amounting to 55.51% in the first round and 53.59% in the second round.
<small>Only candidates obtaining more than 5% are listed</small>
{|class"wikitable" style"text-align:center"
|+ 2007 Presidential Election
!rowspan2|Candidate !!colspan2|1st round !!colspan=2|2nd round
|-
!Bordeaux !! National
!Bordeaux !! National
|-
|align=left|Nicolas Sarkozy||30.84%||31.18%||47.56%||53.06%
|-
|align=left|Ségolène Royal||31.37%||25.87%||52.44%||46.94%
|-
|align=left|François Bayrou||22.01%||18.57%||||
|-
|align=left|Jean-Marie Le Pen||5.42%||10.44%||||
|-
|align=left|Total votes||85.48%||83.77%||84.10%||83.97%
|}
{|class"wikitable" style"text-align:center"
|+ 2012 Presidential Election
!rowspan2|Candidate !!colspan2|1st round !!colspan=2|2nd round
|-
!Bordeaux !! National
!Bordeaux !! National
|-
|align=left|François Hollande||33.05%||28.63%||57.18%||51.64%
|-
|align=left|Nicolas Sarkozy||28.68%||27.18%||42.82%||48.36%
|-
|align=left|Jean-Luc Mélenchon||12.16%||11.10%||||
|-
|align=left|François Bayrou||10.91%||9.13%||||
|-
|align=left|Marine Le Pen||8.22%||17.90%||||
|-
|align=left|Total votes||79.25%||79.48%||80.44%||80.35%
|}
2017 elections
Bordeaux voted for Emmanuel Macron in the presidential election. In the 2017 parliamentary election, La République En Marche! won most of the constituencies in Bordeaux.
2019 European elections
Bordeaux voted in the 2019 European Parliament election in France.
Municipal elections of 2020
After 73 years of right-of-centre rule, the ecologist Pierre Hurmic (EELV) came in ahead of Nicolas Florian (LR/LaREM).
Parliamentary representation
The city area is represented by the following constituencies: Gironde's 1st, Gironde's 2nd, Gironde's 3rd, Gironde's 4th, Gironde's 5th, Gironde's 6th, Gironde's 7th.
Education
University
During Antiquity, a first university had been created by the Romans in 286. The city was an important administrative centre and the new university had to train administrators. Only rhetoric and grammar were taught. Ausonius and Sulpicius Severus were two of the teachers.
In 1441, when Bordeaux was an English town, the Pope Eugene IV created a university by demand of the archbishop Pey Berland. In 1793, during the French Revolution, the National Convention abolished the university, and replace them with the École centrale in 1796. In Bordeaux, this one was located in the former buildings of the college of Guyenne. In 1808, the university reappeared with Napoleon. Bordeaux accommodates approximately 70,000 students on one of the largest campuses of Europe (235 ha).
Schools<!-- BEM links here (for Bordeaux école de management) -->
Bordeaux has numerous public and private schools offering undergraduate and postgraduate programs.
Engineering schools:
* Arts et Métiers ParisTech, graduate school of industrial and mechanical engineering
* ESME-Sudria, graduate school of engineering
* École nationale supérieure d'électronique, informatique, télécommunications, mathématique et mécanique de Bordeaux (ENSEIRB-MATMECA)
* École supérieure de technologie des biomolécules de Bordeaux
* École nationale supérieure des sciences agronomiques de Bordeaux Aquitaine
* École nationale supérieure de chimie et physique de Bordeaux
* École pour l'informatique et les nouvelles technologies
* Institut des sciences et techniques des aliments de Bordeaux
* Institut de cognitique
* École supérieure d'informatique
* École privée des sciences informatiques
Business and management schools:
]]
* The Bordeaux MBA (International College of Bordeaux)
* IUT Techniques de Commercialisation of Bordeaux (business school)
* INSEEC Business School (Institut des hautes études économiques et commerciales)
* KEDGE Business School (former BEM – Bordeaux Management School)
* Vatel Bordeaux International Business School
* E-Artsup
* Institut supérieur européen de gestion group
* Institut supérieur européen de formation par l'action
Other:
]]
* École nationale de la magistrature (National school for the judiciary)
*
*
* (EFAP)
* (CNAM)
* (law school)
Weekend education
The |ボルドー日本語補習授業校|Borudō Nihongo Hoshū Jugyō Kō}}, a part-time Japanese supplementary school, is held in the ''Salle de L'Athénée Municipal'' in Bordeaux. Attractions and tourism
at night with the Miroir d'eau and tram]]
In October 2021, Bordeaux was shortlisted for the European Commission's 2022 European Capital of Smart Tourism award along with Copenhagen, Dublin, Florence, Ljubljana, Palma de Mallorca, and Valencia.
Heritage and architecture
Bordeaux is classified "City of Art and History". The city is home to 362 monuments historiques (national heritage sites), with some buildings dating back to Roman times. Bordeaux, Port of the Moon, has been inscribed on UNESCO World Heritage List as "an outstanding urban and architectural ensemble".
Bordeaux is home to one of Europe's biggest 18th-century architectural urban areas, making it a sought-after destination for tourists and cinema production crews. It stands out as one of the first French cities, after Nancy, to have entered an era of urbanism and metropolitan big scale projects, with the team Gabriel father and son, architects for King Louis XV, under the supervision of two intendants (Governors), first Nicolas-François Dupré de Saint-Maur then the Marquis de Tourny.
Saint-André Cathedral, Saint-Michel Basilica and Saint-Seurin Basilica are part of the World Heritage Sites of the Routes of Santiago de Compostela in France. The organ in Saint-Louis-des-Chartrons is registered on the French monuments historiques.
Notable historic buildings include:
* Place de la Bourse (1735–1755), designed by the Royal architect Jacques Gabriel as landscape for an equestrian statue of Louis XV, now replaced by the Fountain of the Three Graces.
* Grand Théâtre (1780), a large neoclassical theater built in the 18th century.
* Allées de Tourny
* ''Cours de l'Intendance
* Place du Chapelet
* Place du Parlement
* Place des Quinconces, the largest square in France.
* Monument aux Girondins
* Place Saint-Pierre
* Pont de pierre (1822)
* Bordeaux Cathedral (Saint André), consecrated by Pope Urban II in 1096 and dedicated to the Apostle Saint Andrew. Of the original Romanesque edifice only a wall in the nave remains. The Royal Door is from the early 13th century, while the rest of the construction is mostly from the 14th and 15th centuries.
* Tour Pey-Berland (1440–1450), a massive, quadrangular Gothic tower annexed to the cathedral.
* Sainte-Croix church: This church, dedicated to the Holy Cross, stands on the site of a seventh-century abbey destroyed by the Saracens. Rebuilt under the Carolingians, it was again destroyed by the Normans in 845 and 864. The present building was erected and was built in the late 11th and early 12th centuries. The façade is in Romanesque style.
* The Gothic Saint Michel Basilica, constructed between the end of the 14th century and the 16th century.
* Basilica of Saint Severinus, the oldest church in Bordeaux, built in the early sixth century on the site of a palaeo-Christian necropolis. It has an 11th-century portico, while the apse and transept are from the 12th. The 13th-century nave has chapels from the 11th and the 14th centuries. The ancient crypt houses tombs of the Merovingian family.
* Église Saint-Pierre, Gothic church
* Église Saint-Éloi, Gothic church
* Église Saint-Bruno, baroque church decorated with frescoes
* Église Notre-Dame, baroque church
* Église Saint-Paul-Saint-François-Xavier, baroque church
* Palais Rohan'', once the archbishop's residence, now city hall
* , the remains of a late second-century Roman amphitheatre
* Porte Cailhau, a medieval gatehouse in the old city walls.
* La Grosse Cloche (15th century), the second remaining gate in the medieval walls. It was the belfry of the old Town Hall. It consists of two circular towers and a central bell tower housing a bell weighing . The clock is from 1759.
* Grande Synagogue, completed 1882
* Rue Sainte-Catherine, the longest pedestrian street in France
* Darwin ecosystem, alternative place into former military barracks
* The BETASOM submarine base
<gallery widths"200" heights"200">
File:Le Palais Gallien vestige gallo-romain à Bordeaux.jpg|Palais Gallien
File:Cathédrale St André Bordeaux 3.jpg|Bordeaux Cathedral (Saint André)
File:Bordeaux Porte Cailhau R02.jpg|Porte Cailhau
File:Grand Théâtre Bordeaux.jpg|Grand Théâtre
File:Bordeaux Notre-Dame R01.jpg|The Notre Dame church
File:151 - Le Pont de Pierre - Bordeaux.jpg|Pont de Pierre
File:Bordeaux - Basilique Saint-Michel - Vue générale.jpg|Basilica of Saint Michel
File:Puerta de Burdeos.JPG|Grosse cloche
File:026 - Hôtel de ville Place Pey-Berland - Bordeaux.jpg|Palais Rohan (town hall)
File:FacadeSainteCroixBordeauxsoir.jpg|Sainte-Croix church
File:Bordeaux Place du Parlement R01.jpg|Place du Parlement
File:Synagogue Bx 5.jpg|The Grand Synagogue
File:Façades de deux ouvrages Art Déco du Quartier Lescure (Bordeaux).jpg|Facades of the Art déco district
File:Darwin - Magasin général.jpg|Darwin district
File:Basesousmarine.JPG|Submarine Pen
</gallery>
Contemporary buildings in contemporary architectural style include:
* Cité Frugès, district of Pessac, built by Le Corbusier, 1924–1926, listed as UNESCO heritage
* Fire Station, la Benauge, Claude Ferret/Adrien Courtois/Yves Salier, 1951–1954
* Mériadeck district, 1960–70's
* Court of first instance, Richard Rogers, 1998
* CTBA, wood and furniture research center, A. Loisier, 1998
* Hangar 14 on the Quai des Chartrons, 1999
* The Management Science faculty on the Bastide, Anne Lacaton/Jean-Philippe Vassal, 2006
* The Jardin botanique de la Bastide, Catherine Mosbach/Françoise Hélène Jourda/Pascal Convert, 2007
* The Nuyens School complex on the Bastide, Yves Ballot/Nathalie Franck, 2007
* Seeko'o Hotel on the Quai de Bacalan, King Kong architects, 2007
* Matmut Atlantique stadium, Herzog & de Meuron, 2015
* Cité du Vin, XTU architects, Anouk Legendre & Nicolas Desmazières, 2016
* MECA, Maison de l'Économie Créative et de la culture de la Région Nouvelle-Aquitaine, Bjarke Ingels, 2019
<gallery widths"200" heights"160">
File:Cité Frugès, Pessac 08.jpg|Cité Frugès, at Pessac
File:Bordeaux Meriadeck.JPG|Mériadeck district
File:Bordeaux Palais de Justice 23.JPG|Court of first instance
File:Seeko'o Hotel, Bordeaux, July 2014 (03).JPG|Seeko'o hotel
File:Cite du vin Bordeaux 2017 (37500642606).jpg|Cité du Vin
File:RB 20200222 Bordeaux-11.jpg|MECA
</gallery>
Museums
* Musée des Beaux-Arts (Fine arts museum), one of the finest painting galleries in France with paintings by painter such as Tiziano, Veronese, Rubens, Van Dyck, Frans Hals, Claude, Chardin, Delacroix, Renoir, Seurat, Redon, Matisse and Picasso.
* ''Musée d'Aquitaine (archeological and history museum)
* Musée du Vin et du Négoce (museum of the wine trade)
* (museum of decorative arts and design)
* Musée d'Histoire Naturelle (natural history museum)
* Musée Mer Marine (Sea and Navy museum)
* Cité du Vin
* CAPC musée d'art contemporain de Bordeaux (modern art museum)
* Musée national des douanes (history of French customs)
* Bordeaux Patrimoine Mondial (architectural and heritage interpretation centre)
* Musée d'ethnologie (ethnology museum)
* Institut culturel Bernard Magrez, modern and streetart museum into an 18th-century mansion
* Cervantez Institute (into the house of Goya)
* Cap Sciences
* Centre Jean Moulin
<gallery widths"200" heights"200">
File:Beaux arts bordeaux.jpg|Musée des Beaux-Arts
File:Musée Aquitaine.JPG|Musée d'Aquitaine
File:Hôtel de Lalande - Musée des arts décoratifs et du design de Bordeaux.jpg|
File:CAPC janvier 2018.jpg|CAPC musée d'art contemporain de Bordeaux
File:Musée du vin et du négoce de Bordeaux (3).jpg|Musée du vin et du négoce de Bordeaux''
</gallery>
Slavery memorials
Slavery was part of a growing drive for the city. During the 18th and 19th centuries, Bordeaux was an important slave port, which saw some 500 slave expeditions that cause the deportation of 150,000 Africans by Bordeaux shipowners. Secondly, even though the "Triangular trade" represented only 5% of Bordeaux's wealth, the city's direct trade with the Caribbean, that accounted for the other 95%, concerns the colonial stuffs made by the slave (sugar, coffee, cocoa). And thirdly, in that same period, a major migratory movement by Aquitanians took place to the Caribbean colonies, with Saint-Domingue (now Haiti) being the most popular destination. 40% of the white population of the island came from Aquitaine. They prospered with plantations incomes, until the first slave revolts which concluded in 1848 in the final abolition of slavery in France.
A statue of Modeste Testas, an Ethiopian woman who was enslaved by the Bordeaux-based Testas brothers was unveiled in 2019. She was trafficked by them from West Africa, to Philadelphia (where one of the brothers coerced her to have two children by him) and was ultimately freed and lived in Haiti. The bronze sculpture was created by the Haitian artists Woodly Caymitte.
A number of traces and memorial sites are visible in the city. Moreover, in May 2009, the Museum of Aquitaine opened the spaces dedicated to "Bordeaux in the 18th century, trans-Atlantic trading and slavery". This work, richly illustrated with original documents, contributes to disseminate the state of knowledge on this question, presenting above all the facts and their chronology. Shopping Bordeaux has many shopping options. In the heart of Bordeaux is Rue Sainte-Catherine. This pedestrianised street has of shops, restaurants and cafés; it is also one of the longest shopping streets in Europe. Rue Sainte-Catherine starts at Place de la Victoire and ends at Place de la Comédie by the Grand Théâtre. The shops become progressively more upmarket as one moves towards Place de la Comédie and the nearby Cours de l'Intendance is where there are the more exclusive shops and boutiques. Culture Bordeaux is the first city in France to have created, in the 1980s, an architecture exhibition and research centre, Arc en rêve.
The city has a large number of cinemas, theatres, and is the home of the Opéra national de Bordeaux. There are many music venues of varying capacity. The city also offers several festivals throughout the year.
The Bordeaux International Festival of Women in Cinema (Festival international du cinéma au féminin de Bordeaux) took place in Bordeaux from 2002 until 2005. The Festival international du film indépendant de Bordeaux (Fifib or FIFIB), was established in 2012.
<gallery widths"200" heights"160">
File:GrandTheatreBordeaux2.jpg|Grand Théâtre de Bordeaux
File:Bordeaux - Théâtre Femina.jpg|Théâtre Femina
File:RB 20200222 Bordeaux-11.jpg|''MECA, Maison de l'Économie Créative et de la Culture en Aquitaine''
</gallery>
Transport
Road
Bordeaux is an important road and motorway junction. The city is connected to Paris by the A10 motorway, with Lyon by the A89, with Toulouse by the A62, and with Spain by the A63. There is a ring road called the "Rocade" which is often very busy. Another ring road is under consideration.
]]
Bordeaux has five road bridges that cross the Garonne, the Pont de pierre built in the 1820s and three modern bridges built after 1960: the Pont Saint Jean, just south of the Pont de pierre (both located downtown), the Pont d'Aquitaine, a suspension bridge downstream from downtown, and the Pont François Mitterrand, located upstream of downtown. These two bridges are part of the ring-road around Bordeaux. A fifth bridge, the Pont Jacques-Chaban-Delmas, was constructed in 2009–2012 and opened to traffic in March 2013. Located halfway between the Pont de pierre and the Pont d'Aquitaine and serving downtown rather than highway traffic, it is a vertical-lift bridge with a height in closed position comparable to that of Pont de pierre, and to the Pont d'Aquitaine when open. All five road bridges, including the two highway bridges, are open to cyclists and pedestrians as well. Another bridge, the Pont Jean-Jacques Bosc, is to be built in 2018.
Lacking any steep hills, Bordeaux is relatively friendly to cyclists. Cycle paths (separate from the roadways) exist on the highway bridges, along the riverfront, on the university campuses, and incidentally elsewhere in the city. Cycle lanes and bus lanes that explicitly allow cyclists exist on many of the city's boulevards. A paid bicycle-sharing system with automated stations was established in 2010.
Rail
]]
The main railway station, Gare de Bordeaux Saint-Jean, near the center of the city, has 12 million passengers a year. It is served by the French national (SNCF) railway's high speed train, the TGV, that gets to Paris in two hours, with connections to major European centers such as Lille, Brussels, Amsterdam, Cologne, Geneva and London. The TGV also serves Toulouse and Irun (Spain) from Bordeaux. A regular train service is provided to Nantes, Nice, Marseille and Lyon. The Gare Saint-Jean is the major hub for regional trains (TER) operated by the SNCF to Arcachon, Limoges, Agen, Périgueux, Langon, Pau, Le Médoc, Angoulême and Bayonne.
Historically the train line used to terminate at a station on the right bank of the river Garonne near the Pont de Pierre, and passengers crossed the bridge to get into the city. Subsequently, a double-track steel railway bridge was constructed in the 1850s, by Gustave Eiffel, to bring trains across the river direct into Gare de Bordeaux Saint-Jean. The old station was later converted and in 2010 comprised a cinema and restaurants.
The two-track Eiffel bridge with a speed limit of became a bottleneck and a new bridge was built, opening in 2009. The new bridge has four tracks and allows trains to pass at . During the planning there was much lobbying by the Eiffel family and other supporters to preserve the old bridge as a footbridge across the Garonne, with possibly a museum to document the history of the bridge and Gustave Eiffel's contribution. The decision was taken to save the bridge, but by early 2010 no plans had been announced as to its future use. The bridge remains intact, but unused and without any means of access.
The LGV Sud Europe Atlantique became fully operational in July 2017, shortening the journey time from Bordeaux city to Paris to 2hrs 4mins.
Air
]]
Bordeaux is served by Bordeaux–Mérignac Airport, located from the city centre in the suburban city of Mérignac. Trams, buses and boats
]]
Bordeaux has an important public transport system called Transports Bordeaux Métropole (TBM). This company is run by the Keolis group. The network consists of:
* Four tram lines (A, B, C and D)
* 75 bus routes, all connected to the tramway network (from 1 to 96)
* 13 night bus routes (from 1 to 16)
* An electric bus shuttle in the city centre
* A boat shuttle on the Garonne river
This network is operated from 5 am to 2 am.
There had been several plans for a subway network to be set up, but they stalled for both geological and financial reasons. Work on the Tramway de Bordeaux system was started in the autumn of 2000, and services started in December 2003 connecting Bordeaux with its suburban areas. The tram system uses Alstom APS a form of ground-level power supply technology developed by French company Alstom and designed to preserve the aesthetic environment by eliminating overhead cables in the historic city. Conventional overhead cables are used outside the city. The system was controversial for its considerable cost of installation, maintenance and also for the numerous initial technical problems that paralysed the network. Many streets and squares along the tramway route became pedestrian areas, with limited access for cars.
The Bordeaux Tramway system reached the Mérignac airport on April 29th 2023 with the opening of a 5-km extension of Line A.
Taxis
There are more than 400 taxicabs in Bordeaux.
Public transportation statistics
The average amount of time people spend commuting with public transit in Bordeaux, for example to and from work, on a weekday is 51 min. 12.% of public transit riders, ride for more than 2 hours every day. The average amount of time people wait at a stop or station for public transit is 13 min, while 15.5% of riders wait for over 20 minutes on average every day. The average distance people usually ride in a single trip with public transit is , while 8% travel for over in a single direction. Sport
]]
]]
The 41,458-capacity Nouveau Stade de Bordeaux is the largest stadium in Bordeaux. The stadium was opened in 2015 and replaced the Stade Chaban-Delmas, which was a venue for the FIFA World Cup in 1938 and 1998, as well as the 2007 Rugby World Cup. In the 1938 FIFA World Cup, it hosted a violent quarter-final known as the Battle of Bordeaux. The ground was formerly known as the Stade du Parc Lescure until 2001, when it was renamed in honour of the city's long-time mayor, Jacques Chaban-Delmas.
There are two major sport teams in Bordeaux, Girondins de Bordeaux is the football team who, following administrative relegation, currently play in Championnat National 2, the fourth tier of French football. They are one of the most successful clubs in France, with six Division 1/Ligue 1 titles. Union Bordeaux Bègles is a rugby team in the Top 14 in the Ligue Nationale de Rugby. Skateboarding, rollerblading, and BMX biking are activities enjoyed by many young inhabitants of the city. Bordeaux is home to a quay which runs along the Garonne river. On the quay there is a skate-park divided into three sections. One section is for Vert tricks, one for street style tricks, and one for little action sports athletes with easier features and softer materials. The skate-park is very well maintained by the municipality.
Other sports clubs include top flight ice hockey team Boxers de Bordeaux and third-tier basketball team JSA Bordeaux Basket
Bordeaux is also the home to one of the strongest cricket teams in France and are champions of the South West League.
There is a wooden velodrome, Vélodrome du Lac, in Bordeaux which hosts international cycling competition in the form of UCI Track Cycling World Cup events.
The 2015 Trophee Eric Bompard was in Bordeaux. But the Free Skate was cancelled in all of the divisions due to the Paris and aftermath. The Short Program occurred hours before the bombing. French skaters Chafik Besseghier (68.36) in tenth place, Romain Ponsart (62.86) in 11th. Mae-Berenice-Meite (46.82) in 11th and Laurine Lecavelier (46.53) in 12th. Vanessa James/Morgan Cipres (65.75) in second.
Between 1951 and 1955, an annual Formula 1 motor race was held on a 2.5-kilometre circuit which looped around the Esplanade des Quinconces and along the waterfront, attracting drivers such as Juan Manuel Fangio, Stirling Moss, Jean Behra and Maurice Trintignant. Notable people <gallery mode"packed" heights=200>
File:Ausonius.jpg|Ausonius
File:Anthony Frederick Sandys - Queen Eleanor.JPG|Eleanor of Aquitaine
File:Richard II King of England.jpg|Richard II of England
File:Montaigne-Dumonstier.jpg|Michel de Montaigne
File:Sta. Joana de Lestonnac.jpg|Sainte Jeanne de Lestonnac
File:Charles Montesquieu.jpg|Montesquieu
File:Rosa Bonheur, 1865, wearing the Legion of Honour.jpg|Rosa Bonheur
File:095 Odilon Redon Mon portrait.jpg|Odilon Redon
File:Self-Portrait Albert Marquet (1904).jpg|Albert Marquet
</gallery>
* Ausonius (310–395), Roman poet and teacher of rhetoric
* Jean Alaux (1786–1864), painter
* Bertrand Andrieu (1761–1822), engraver
* Jean Anouilh (1910–1987), dramatist
* Lucien Arman (1811–1873), shipbuilder and politician
* Yvonne Arnaud (1892–1958), pianist, singer and actress
* Xavier Arnozan (1852–1928), physician
* Floyd Ayité (born 1988), Togolese footballer
* Jonathan Ayité (born 1985), Togolese footballer
* Jean-Baptiste Barrière (1707–1747), cellist, composer
* Gérard Bayo (born 1936), writer and poet
* Jean Bertheroy (1858-1927), writer
* François Bigot (1703–1778), last "Intendant" of New France
* Arnaud Binard (born 1971), actor and producer
* Rosa Bonheur (1822–1899), animal painter and sculptor
* Grégory Bourdy (born 1982), golfer
* Samuel Boutal (born 1969), footballer
* Alice Caffarel (born 1961), linguist
* Edmond de Caillou (died c. February 1316) Gascon knight fighting in Scotland
* Gérald Caussé, Presiding Bishop of The Church of Jesus Christ of Latter Day Saints
* Leopold Chasseriau (1825–1891), planter
* René Clément (1913–1996), actor, director, writer
* Jean-René Cruchet (1875–1959), pathologist
* José Cubero Sánchez (1964–1985), Spanish bullfighter
* Boris Cyrulnik (born 1937), psychiatrist and psychoanalyst
* Damia (1899–1978), singer and actress
* Étienne Noël Damilaville (1723–1768), encyclopédiste
* Lili Damita (1901–1994), actress
* Frédéric Daquin, (born 1978), footballer
* Danielle Darrieux (1917–2017), actress
* Bernard Delvaille (1931–2006), poet, essayist
* David Diop (1927–1960), poet
* Jean-Francois Domergue, footballer
* Eleanor of Aquitaine (1122–1204), duchess of Aquitaine, queen of France and queen of England
* Jacques Ellul (1912–1994), sociologist, theologian, Christian anarchist
* Jean Eustache (1938–1981), Nouvelle Vague director
* Marie Fel (1713–1794), opera singer
* Jean-Luc Fournet (1965), papyrologist
* Pierre-Jean Garat (1762–1823), singer
* Armand Gensonné (1758–1793), politician
* Sébastien Gervais (born 1976), professional footballer
* Stephen Girard (1750–1831), merchant, banker, and Philadelphia philanthropist
* Jérôme Gnako (born 1968), footballer
* Randolphe Gohi (born 1969), former professional footballer
* Eugène Goossens (1867–1958), conductor, violinist
* Anna Hamilton (1864–1935), doctor, superintendent of the Protestant Hospital at Bordeaux (1901–1934)
* Adolphe Jacquies (c. 1798–1860), Canadian shopkeeper, printer, trade unionist, and newspaper publisher
* Pierre Lacour (1745–1814), painter
* Léopold Lafleurance (1865–1953), flautist
* Joseph Henri Joachim Lainé (1767–1835), statesman
* Sainte Jeanne de Lestonnac (1556–1640), Roman Catholic saint and foundress of the Sisters of the Company of Mary, Our Lady
* Christophe Lestrade (born 1969), former professional footballer
* André Lhote (1885–1962), cubist painter
* Jeanne Henriette Louis, (1938), professor of North American civilization
* Jean-Baptiste Lynch (1749–1835), politician
* Lucenzo (born 1983), singer
* Jean-Jacques Magendie (1766–1835), officer
* François Magendie (1783–1855), physiologist
* Bruno Marie-Rose (born 1965), athlete (sprinter)
* Albert Marquet, (1875–1947), painter
* François Mauriac (1885–1970), writer, Nobel laureate 1952
* Benjamin Millepied (born 1977), dancer and choreographer
* Édouard Molinaro (1928–2013), film director, screenwriter
* Pierre Molinier (1900–1976), painter, photographer
* Michel de Montaigne (1533–1592), essayist
* Montesquieu (1689–1755), man of letters and political philosopher
* Olivier Mony (1966–), writer and literary critic
* Étienne Marie Antoine Champion de Nansouty (1768–1815), general
* Elie Okobo, basketball player
* Pierre Palmade (born 1968), actor and comedian
* St. Paulinus of Nola (354–431), educator, religious figure
* Émile Péreire (1800–1875), banker and industrialist
* Sophie Pétronin (born 1945), aid worker and humanitarian
* Albert Pitres (1848–1928), neurologist
* Hippolyte Pradelles (1824–1913), naturalist painter
* Georges Antoine Pons Rayet (1839–1906), astronomer, discoverer of the Wolf-Rayet stars, & founder of the Bordeaux Observatory
* Odilon Redon (1840–1916), painter
* Richard II of England (1367–1400), king
* Pierre Rode (1774–1830), violinist
* Olinde Rodrigues (1795–1851), mathematician, banker and social reformer
* Marie-Sabine Roger (born 1957), writer
* Eugenie Santa Coloma Sourget (1827–1895), composer, pianist and singer
* Bernard Sarrette (1765–1858), conductor and music pedagogue
* Jean-Jacques Sempé (1932–2022), cartoonist
* Florent Serra (born 1981), tennis player
* Alfred Smith, (1854–1932), painter
* Soko (born 1985), singer
* Philippe Sollers, (born 1936), writer
* Wilfried Tekovi, (born 1989), Togolese footballer
* Elie Vinet (1509–1587), historian and humanist of the Renaissance
* Adam Siao Him Fa, (born 2001), professional figure skater
* Claude Dagens, (born 1940), prelate
International relationships
, Mayor of Bordeaux, visiting the twin town of Ashdod]]
pavilion at the Parc floral de Bordeaux]]
Twin towns – sister cities
Bordeaux is twinned with:
* Ashdod, Israel, since 1984
* Bristol, United Kingdom, since 1947
* Casablanca, Morocco, since 1988
* Lima, Peru, since 1957
* Madrid, Spain, since 1984
* Oran, Algeria, since 2003
* Quebec City, Quebec Canada, since 1962
* Saint Petersburg, Russia, since 1993
* Wuhan, China, since 1998
See also
* Atlantic history
* Bordeaux wine regions
* Bordeaux–Paris, a formerly professional road bicycle racing annual event
* The Burdigalian Age of the Miocene Epoch is named for Bordeaux
* Canelé, a local pastry
* Communes of the Gironde department
* Dogue de Bordeaux, a breed of dog originally bred for dog fighting
* French wine
* Girondins
* History of slavery
* List of mayors of Bordeaux
* Operation Frankton, a British Combined Operations raid on shipping in the harbour at Bordeaux, in December 1942, during World War II
* Roman Catholic Archdiocese of Bordeaux
Explanatory notes
References
Further reading
*
* External links
* [https://web.archive.org/web/20130306023822/http://www.france.fr/en/regions-and-cities/bordeaux-world-capital-wine Bordeaux: the world capital of wine] – Official French website (in English)
*
<!-- Leave the empty space as per WP:EPONYMOUS. -->
Category:Cities in France
Category:Cities in Nouvelle-Aquitaine
Category:Communes of Gironde
Category:Gallia Aquitania
Category:Gironde
Category:Guyenne
Category:Port cities and towns on the French Atlantic coast
Category:Prefectures in France
Category:World Heritage Sites in France | https://en.wikipedia.org/wiki/Bordeaux | 2025-04-05T18:26:41.218760 |
4098 | Puzzle Bobble | | publisher |Neo Geo/Neo Geo CD<br>SNK<br>SNES/Game Gear<br>Taito<br>3DO<br>Windows<br>WonderSwan<br>Sunsoft}}
| designer = Kazuhiro Kinoshita, Seiichi Nakakuki
| programmer = Yasuo Tsumori
| composer = Kazuko Umino, Yasuko Yamada
| series = Puzzle Bobble
| platforms =
| released =
SNES:<br>
January 13 1995 in Japan<br>
March 1995 in US<br>
June 29 1995 in EU<br>
3DO:<br>
November 22 1995 in Japan<br>
December 15 1995 in US<br>
}}
| genre = Puzzle
| modes = Single-player, multiplayer
| arcade system = Taito B System (Japan), Neo Geo MVS (international)
}}
internationally known as Bust-A-Move, is a 1994 tile-matching puzzle arcade game developed and published by Taito. It is based on the 1986 arcade game Bubble Bobble, featuring characters and themes from that game. Its characteristically cute Japanese animation and music, along with its play mechanics and level designs, made it successful as an arcade title and spawned several sequels and ports to home gaming systems.
Gameplay
At the start of each round, the rectangular playing arena contains a prearranged pattern of colored "bubbles". At the bottom of the screen, the player controls a device called a "pointer", which aims and fires bubbles up the screen. The color of bubbles fired is randomly generated and chosen from the colors of bubbles still left on the screen.
The objective of the game is to clear all the bubbles from the arena without any bubble crossing the bottom line. Bubbles will fire automatically if the player remains idle. After clearing the arena, the next round begins with a new pattern of bubbles to clear. The arcade version of the game consists of 30 levels. The fired bubbles travel in straight lines (possibly bouncing off the sidewalls of the arena), stopping when they touch other bubbles or reach the top of the arena. If a bubble touches identically colored bubbles, forming a group of three or more, those bubbles—as well as any bubbles hanging from them—are removed from the field of play, and points are awarded. After every few shots, the "ceiling" of the playing arena drops downwards slightly, along with all the bubbles stuck to it. The number of shots between each drop of the ceiling is influenced by the number of bubble colors remaining. The closer the bubbles get to the bottom of the screen, the faster the music plays and if they cross the line at the bottom then the game is over.ReleaseTwo different versions of the original game were released. Puzzle Bobble was originally released in Japan only in June 1994 by Taito, running on Taito B System hardware (with the preliminary title "Bubble Buster"). Then, six months later in December, the international Neo Geo version of Puzzle Bobble was released. It was almost identical aside from being in stereo and having some different sound effects and translated text.Reception
(Arcade)
| EGM 39/50 (SNES)
}}
In Japan, Game Machine listed the Neo Geo version of Puzzle Bobble on their February 15, 1995 issue as being the second most-popular arcade game at the time. It went on to become Japan's second highest-grossing arcade printed circuit board (PCB) software of 1995, below Virtua Fighter 2. In North America, RePlay reported the Neo Geo version of Puzzle Bobble to be the fourth most-popular arcade game in February 1995.
Reviewing the Super NES version, Mike Weigand of Electronic Gaming Monthly called it "a thoroughly enjoyable and incredibly addicting puzzle game". He considered the two player mode the highlight, but also said that the one player mode provides a solid challenge. GamePro gave it a generally negative review, saying it starts out fun but that ultimately lacks intricacy and longevity. They elaborated that in one player mode all the levels feel the same, and that two player matches are over too quickly to build up any excitement. They also criticized the lack of any 3D effects in the graphics. Next Generation reviewed the SNES version of the game and called it "addictive as hell".
A reviewer for Next Generation, while questioning the continued viability of the action puzzle genre, admitted that the game is "very simple and very addictive". He remarked that though the 3DO version makes no significant additions, none are called for by a game with such simple enjoyment. GamePros brief review of the 3DO version commented that the game's controls are responsive, and they also praised visuals and music. Edge magazine ranked the game 73rd on their 100 Best Video Games in 2007. IGN rated the SNES version 54th in its Top 100 SNES Games.LegacyThe simplicity of the concept has led to many clones, both commercial and otherwise. 1996's Snood replaced the bubbles with small creatures and has been successful in its own right. Worms Blast was Team 17's take on the concept. On September 24, 2000, British game publisher Empire Interactive released a similar game, Spin Jam, for the original PlayStation console. Mobile clones include Bubble Witch Saga and Bubble Shooter. Frozen Bubble is a free software clone. For Bubble Bobbles 35th anniversary, Taito launched Puzzle Bobble VR: Vacation Odyssey on the Oculus Quest and Oculus Quest 2, later coming to PlayStation 4 and PlayStation 5 as Puzzle Bobble 3D: Vacation Odyssey in 2021. Puzzle Bobble Everybubble! Puzzle Bobble Everybubble! was released on May 23, 2023, for Nintendo Switch. The game also comes with an extra mode called "Puzzle Bobble vs. Space Invaders''", where up to four players can work together to erase bubble-encased invaders before they reach the player while only being able to aim straight up.NotesReferencesExternal links
* Taito Corporation page: [https://web.archive.org/web/19981201230335/http://www.taito.co.jp/his/A_HIS/HTM/PUZBOB.HTM arcade], [https://web.archive.org/web/20060113211813/http://www.taito.co.jp/mobile/ew_jphone/spb/spb.html#point_pb PB (mobile)]
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Category:1994 video games
Category:3DO games
Category:ACA Neo Geo games
Category:Arcade video games
Category:Bubble Bobble
Category:Game Gear games
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Category:Kinesoft games
Category:Microcabin games
Category:Multiplayer and single-player video games
Category:Neo Geo CD games
Category:Neo Geo games
Category:PlayStation 4 games
Category:Puzzle video games
Category:SNK games
Category:Split-screen multiplayer games
Category:Square Enix franchises
Category:Super Nintendo Entertainment System games
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Category:Taito B System games
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Category:Video games scored by Tamayo Kawamoto
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Category:Xbox One games | https://en.wikipedia.org/wiki/Puzzle_Bobble | 2025-04-05T18:26:41.245935 |
4099 | Bone | }}
A bone is a rigid organ that constitutes part of the skeleton in most vertebrate animals. Bones protect the various other organs of the body, produce red and white blood cells, store minerals, provide structure and support for the body, and enable mobility. Bones come in a variety of shapes and sizes and have complex internal and external structures. They are lightweight yet strong and hard and serve multiple functions.
Bone tissue (osseous tissue), which is also called bone in the uncountable sense of that word, is hard tissue, a type of specialised connective tissue. It has a honeycomb-like matrix internally, which helps to give the bone rigidity. Bone tissue is made up of different types of bone cells. Osteoblasts and osteocytes are involved in the formation and mineralisation of bone; osteoclasts are involved in the resorption of bone tissue. Modified (flattened) osteoblasts become the lining cells that form a protective layer on the bone surface. The mineralised matrix of bone tissue has an organic component of mainly collagen called ossein and an inorganic component of bone mineral made up of various salts. Bone tissue is mineralized tissue of two types, cortical bone and cancellous bone. Other types of tissue found in bones include bone marrow, endosteum, periosteum, nerves, blood vessels and cartilage.
In the human body at birth, approximately 300 bones are present. Many of these fuse together during development, leaving a total of 206 separate bones in the adult, not counting numerous small sesamoid bones. The largest bone in the body is the femur or thigh-bone, and the smallest is the stapes in the middle ear.
The Ancient Greek word for bone is ὀστέον ("osteon"), hence the many terms that use it as a prefix—such as osteopathy. In anatomical terminology, including the Terminologia Anatomica international standard, the word for a bone is os (for example, os breve, os longum, os sesamoideum).
Structure
Bone is not uniformly solid, but consists of a flexible matrix (about 30%) and bound minerals (about 70%), which are intricately woven and continuously remodeled by a group of specialized bone cells. Their unique composition and design allows bones to be relatively hard and strong, while remaining lightweight.
Bone matrix is 90 to 95% composed of elastic collagen fibers, also known as ossein, and the remainder is ground substance. The elasticity of collagen improves fracture resistance. The matrix is hardened by the binding of inorganic mineral salt, calcium phosphate, in a chemical arrangement known as bone mineral, a form of calcium apatite. It is the mineralization that gives bones rigidity.
Bone is actively constructed and remodeled throughout life by specialized bone cells known as osteoblasts and osteoclasts. Within any single bone, the tissue is woven into two main patterns: cortical and cancellous bone, each with a distinct appearance and characteristics.
Cortex
The hard outer layer of bones is composed of cortical bone, which is also called compact bone as it is much denser than cancellous bone. It forms the hard exterior (cortex) of bones. The cortical bone gives bone its smooth, white, and solid appearance, and accounts for 80% of the total bone mass of an adult human skeleton. It facilitates bone's main functions—to support the whole body, to protect organs, to provide levers for movement, and to store and release chemical elements, mainly calcium. It consists of multiple microscopic columns, each called an osteon or Haversian system. Each column is multiple layers of osteoblasts and osteocytes around a central canal called the osteonic canal. Volkmann's canals at right angles connect the osteons together. The columns are metabolically active, and as bone is reabsorbed and created the nature and location of the cells within the osteon will change. Cortical bone is covered by a periosteum on its outer surface, and an endosteum on its inner surface. The endosteum is the boundary between the cortical bone and the cancellous bone. The primary anatomical and functional unit of cortical bone is the osteon.
Trabeculae <span class"anchor" id"Cancellous bone"></span>
Cancellous bone or spongy bone, also known as trabecular bone, is the internal tissue of the skeletal bone and is an open cell porous network that follows the material properties of biofoams. Cancellous bone has a higher surface-area-to-volume ratio than cortical bone and it is less dense. This makes it weaker and more flexible. The greater surface area also makes it suitable for metabolic activities such as the exchange of calcium ions. Cancellous bone is typically found at the ends of long bones, near joints, and in the interior of vertebrae. Cancellous bone is highly vascular and often contains red bone marrow where hematopoiesis, the production of blood cells, occurs. The primary anatomical and functional unit of cancellous bone is the trabecula. The trabeculae are aligned towards the mechanical load distribution that a bone experiences within long bones such as the femur. As far as short bones are concerned, trabecular alignment has been studied in the vertebral pedicle. Thin formations of osteoblasts covered in endosteum create an irregular network of spaces, known as trabeculae. Within these spaces are bone marrow and hematopoietic stem cells that give rise to platelets, red blood cells and white blood cells. Trabecular marrow is composed of a network of rod- and plate-like elements that make the overall organ lighter and allow room for blood vessels and marrow. Trabecular bone accounts for the remaining 20% of total bone mass but has nearly ten times the surface area of compact bone.
The words cancellous and trabecular refer to the tiny lattice-shaped units (trabeculae) that form the tissue. It was first illustrated accurately in the engravings of Crisóstomo Martinez.
Marrow
Bone marrow, also known as myeloid tissue in red bone marrow, can be found in almost any bone that holds cancellous tissue. In newborns, all such bones are filled exclusively with red marrow or hematopoietic marrow, but as the child ages the hematopoietic fraction decreases in quantity and the fatty/ yellow fraction called marrow adipose tissue (MAT) increases in quantity. In adults, red marrow is mostly found in the bone marrow of the femur, the ribs, the vertebrae and pelvic bones.Vascular supplyBone receives about 10% of cardiac output. Blood enters the endosteum, flows through the marrow, and exits through small vessels in the cortex. Once the osteoblast is finished working it is actually trapped inside the bone once it hardens. When the osteoblast becomes trapped, it becomes known as an osteocyte. Other osteoblasts remain on the top of the new bone and are used to protect the underlying bone, these become known as bone lining cells.OsteocyteOsteocytes are cells of mesenchymal origin and originate from osteoblasts that have migrated into and become trapped and surrounded by a bone matrix that they themselves produced. The spaces the cell body of osteocytes occupy within the mineralized collagen type I matrix are known as lacunae, while the osteocyte cell processes occupy channels called canaliculi. The many processes of osteocytes reach out to meet osteoblasts, osteoclasts, bone lining cells, and other osteocytes probably for the purposes of communication. Osteocytes remain in contact with other osteocytes in the bone through gap junctions—coupled cell processes which pass through the canalicular channels.
Osteoclast
Osteoclasts are very large multinucleate cells that are responsible for the breakdown of bones by the process of bone resorption. New bone is then formed by the osteoblasts. Bone is constantly remodeled by the resorption of osteoclasts and created by osteoblasts. Osteoclasts are large cells with multiple nuclei located on bone surfaces in what are called ''Howship's lacunae (or resorption pits). These lacunae are the result of surrounding bone tissue that has been reabsorbed. Because the osteoclasts are derived from a monocyte stem-cell lineage, they are equipped with phagocytic-like mechanisms similar to circulating macrophages. Osteoclasts mature and/or migrate to discrete bone surfaces. Upon arrival, active enzymes, such as tartrate-resistant acid phosphatase, are secreted against the mineral substrate. The reabsorption of bone by osteoclasts also plays a role in calcium homeostasis.Composition
Bones consist of living cells (osteoblasts and osteocytes) embedded in a mineralized organic matrix. The primary inorganic component of human bone is hydroxyapatite, the dominant bone mineral, having the nominal composition of Ca<sub>10</sub>(PO<sub>4</sub>)<sub>6</sub>(OH)<sub>2</sub>. The organic components of this matrix consist mainly of type I collagen—"organic" referring to materials produced as a result of the human body—and inorganic components, which alongside the dominant hydroxyapatite phase, include other compounds of calcium and phosphate including salts. Approximately 30% of the acellular component of bone consists of organic matter, while roughly 70% by mass is attributed to the inorganic phase. The collagen fibers give bone its tensile strength, and the interspersed crystals of hydroxyapatite give bone its compressive strength. These effects are synergistic. The exact composition of the matrix may be subject to change over time due to nutrition and biomineralization, with the ratio of calcium to phosphate varying between 1.3 and 2.0 (per weight), and trace minerals such as magnesium, sodium, potassium and carbonate also be found.
Type I collagen composes 90–95% of the organic matrix, with the remainder of the matrix being a homogenous liquid called ground substance consisting of proteoglycans such as hyaluronic acid and chondroitin sulfate, as well as non-collagenous proteins such as osteocalcin, osteopontin or bone sialoprotein. Collagen consists of strands of repeating units, which give bone tensile strength, and are arranged in an overlapping fashion that prevents shear stress. The function of ground substance is not fully known. Two types of bone can be identified microscopically according to the arrangement of collagen: woven and lamellar.
* Woven bone (also known as fibrous bone), which is characterized by a haphazard organization of collagen fibers and is mechanically weak.
* Lamellar bone, which has a regular parallel alignment of collagen into sheets ("lamellae") and is mechanically strong. is stronger and filled with many collagen fibers parallel to other fibers in the same layer (these parallel columns are called osteons). In cross-section, the fibers run in opposite directions in alternating layers, much like in plywood, assisting in the bone's ability to resist torsion forces. After a fracture, woven bone forms initially and is gradually replaced by lamellar bone during a process known as "bony substitution". Compared to woven bone, lamellar bone formation takes place more slowly. The orderly deposition of collagen fibers restricts the formation of osteoid to about 1 to 2 μm per day. Lamellar bone also requires a relatively flat surface to lay the collagen fibers in parallel or concentric layers.DepositionThe extracellular matrix of bone is laid down by osteoblasts, which secrete both collagen and ground substance. These cells synthesise collagen alpha polypetpide chains and then secrete collagen molecules. The collagen molecules associate with their neighbors and crosslink via lysyl oxidase to form collagen fibrils. At this stage, they are not yet mineralized, and this zone of unmineralized collagen fibrils is called "osteoid". Around and inside collagen fibrils calcium and phosphate eventually precipitate within days to weeks becoming then fully mineralized bone with an overall carbonate substituted hydroxyapatite inorganic phase.
In order to mineralise the bone, the osteoblasts secrete alkaline phosphatase, some of which is carried by vesicles. This cleaves the inhibitory pyrophosphate and simultaneously generates free phosphate ions for mineralization, acting as the foci for calcium and phosphate deposition. Vesicles may initiate some of the early mineralization events by rupturing and acting as a centre for crystals to grow on. Bone mineral may be formed from globular and plate structures, and via initially amorphous phases.
Types
Five types of bones are found in the human body: long, short, flat, irregular, and sesamoid.
* Long bones are characterized by a shaft, the diaphysis, that is much longer than its width; and by an epiphysis, a rounded head at each end of the shaft. They are made up mostly of compact bone, with lesser amounts of marrow, located within the medullary cavity, and areas of spongy, cancellous bone at the ends of the bones. Most bones of the limbs, including those of the fingers and toes, are long bones. The exceptions are the eight carpal bones of the wrist, the seven articulating tarsal bones of the ankle and the sesamoid bone of the kneecap. Long bones such as the clavicle, that have a differently shaped shaft or ends are also called modified long bones.
* Short bones are roughly cube-shaped, and have only a thin layer of compact bone surrounding a spongy interior. Short bones provide stability and support as well as some limited motion. The bones of the wrist and ankle are short bones.
* Flat bones are thin and generally curved, with two parallel layers of compact bone sandwiching a layer of spongy bone. Most of the bones of the skull are flat bones, as is the sternum.
* Sesamoid bones are bones embedded in tendons. Since they act to hold the tendon further away from the joint, the angle of the tendon is increased and thus the leverage of the muscle is increased. Examples of sesamoid bones are the patella and the pisiform.
* Irregular bones do not fit into the above categories. They consist of thin layers of compact bone surrounding a spongy interior. As implied by the name, their shapes are irregular and complicated. Often this irregular shape is due to their many centers of ossification or because they contain bony sinuses. The bones of the spine, pelvis, and some bones of the skull are irregular bones. Examples include the ethmoid and sphenoid bones.Terminology
In the study of anatomy, anatomists use a number of anatomical terms to describe the appearance, shape and function of bones. Other anatomical terms are also used to describe the location of bones. Like other anatomical terms, many of these derive from Latin and Greek. Some anatomists still use Latin to refer to bones. The term "osseous", and the prefix "osteo-", referring to things related to bone, are still used commonly today.
Some examples of terms used to describe bones include the term "foramen" to describe a hole through which something passes, and a "canal" or "meatus" to describe a tunnel-like structure. A protrusion from a bone can be called a number of terms, including a "condyle", "crest", "spine", "eminence", "tubercle" or "tuberosity", depending on the protrusion's shape and location. In general, long bones are said to have a "head", "neck", and "body".
When two bones join, they are said to "articulate". If the two bones have a fibrous connection and are relatively immobile, then the joint is called a "suture".
Development
The formation of bone is called ossification. During the fetal stage of development this occurs by two processes: intramembranous ossification and endochondral ossification. Intramembranous ossification involves the formation of bone from connective tissue whereas endochondral ossification involves the formation of bone from cartilage.
Intramembranous ossification mainly occurs during formation of the flat bones of the skull but also the mandible, maxilla, and clavicles; the bone is formed from connective tissue such as mesenchyme tissue rather than from cartilage. The process includes: the development of the ossification center, calcification, trabeculae formation and the development of the periosteum.
Endochondral ossification occurs in long bones and most other bones in the body; it involves the development of bone from cartilage. This process includes the development of a cartilage model, its growth and development, development of the primary and secondary ossification centers, and the formation of articular cartilage and the epiphyseal plates.
Endochondral ossification begins with points in the cartilage called "primary ossification centers". They mostly appear during fetal development, though a few short bones begin their primary ossification after birth. They are responsible for the formation of the diaphyses of long bones, short bones and certain parts of irregular bones. Secondary ossification occurs after birth and forms the epiphyses of long bones and the extremities of irregular and flat bones. The diaphysis and both epiphyses of a long bone are separated by a growing zone of cartilage (the epiphyseal plate). At skeletal maturity (18 to 25 years of age), all of the cartilage is replaced by bone, fusing the diaphysis and both epiphyses together (epiphyseal closure). In the upper limbs, only the diaphyses of the long bones and scapula are ossified. The epiphyses, carpal bones, coracoid process, medial border of the scapula, and acromion are still cartilaginous.
The following steps are followed in the conversion of cartilage to bone:
# Zone of reserve cartilage. This region, farthest from the marrow cavity, consists of typical hyaline cartilage that as yet shows no sign of transforming into bone.
# Zone of cell proliferation. A little closer to the marrow cavity, chondrocytes multiply and arrange themselves into longitudinal columns of flattened lacunae. While nutritional and pharmacological approaches may also improve bone health, the strength and balance adaptations from resistance training are a substantial added benefit. Sports such as soccer, basketball, and tennis have shown to have positive effects on bone mineral density as well as bone mineral content in teenagers. Children and adolescents who participate in regular physical activity will place the groundwork for bone health later in life, reducing the risk of bone-related conditions such as osteoporosis. This means that bone resists pushing (compressional) stress well, resist pulling (tensional) stress less well, but only poorly resists shear stress (such as due to torsional loads). While bone is essentially brittle, bone does have a significant degree of elasticity, contributed chiefly by collagen.
Mechanically, bones also have a special role in hearing. The ossicles are three small bones in the middle ear which are involved in sound transduction.
Synthetic
The cancellous part of bones contain bone marrow. Bone marrow produces blood cells in a process called hematopoiesis. Blood cells that are created in bone marrow include red blood cells, platelets and white blood cells. Progenitor cells such as the hematopoietic stem cell divide in a process called mitosis to produce precursor cells. These include precursors which eventually give rise to white blood cells, and erythroblasts which give rise to red blood cells. Unlike red and white blood cells, created by mitosis, platelets are shed from very large cells called megakaryocytes. This process of progressive differentiation occurs within the bone marrow. After the cells are matured, they enter the circulation. Every day, over 2.5 billion red blood cells and platelets, and 50–100 billion granulocytes are produced in this way.
As well as creating cells, bone marrow is also one of the major sites where defective or aged red blood cells are destroyed.Metabolic* Mineral storage – bones act as reserves of minerals important for the body, most notably calcium and phosphorus.
Determined by the species, age, and the type of bone, bone cells make up to 15 percent of the bone. Growth factor storage—mineralized bone matrix stores important growth factors such as insulin-like growth factors, transforming growth factor, bone morphogenetic proteins and others.
* Fat storage – marrow adipose tissue (MAT) acts as a storage reserve of fatty acids.
* Acid-base balance – bone buffers the blood against excessive pH changes by absorbing or releasing alkaline salts.
* Detoxification – bone tissues can also store heavy metals and other foreign elements, removing them from the blood and reducing their effects on other tissues. These can later be gradually released for excretion.
* Endocrine organ – bone controls phosphate metabolism by releasing fibroblast growth factor 23 (FGF-23), which acts on kidneys to reduce phosphate reabsorption. Bone cells also release a hormone called osteocalcin, which contributes to the regulation of blood sugar (glucose) and fat deposition. Osteocalcin increases both the insulin secretion and sensitivity, in addition to boosting the number of insulin-producing cells and reducing stores of fat.
* Calcium balance – the process of bone resorption by the osteoclasts releases stored calcium into the systemic circulation and is an important process in regulating calcium balance. As bone formation actively fixes circulating calcium in its mineral form, removing it from the bloodstream, resorption actively unfixes it thereby increasing circulating calcium levels. These processes occur in tandem at site-specific locations. Calcium Strong bones during our youth is essential for preventing osteoporosis and bone fragility as we age. The importance of insuring factors that could influence increases in BMD while lowering our risks for further bone degradation is necessary during our childhood as these factors lead to a supportive and healthy lifestyle/bone health. Up till the age of 30, the bone stores that we have will ultimately start to decrease as we surpass this age. Influencing factors that can help us have larger stores and higher amounts of BMD will allow us to see less harmful results as we reach older adulthood.
The issue of having fragile bones during our childhood leads to an increase in certain disorders and conditions such as juvenile osteoporosis, though it is less common to see, the necessity for a healthy routine especially when it comes to bone development is essential in our youth. Children that naturally have lower bone mineral density have a lower quality of life and therefore lead a life that is less fulfilling and uncomfortable. Factors such as increases in Calcium intake has been shown to increase BMD stores. Studies have shown that increasing calcium stores whether that be through supplementation or intake via foods and beverages such as leafy greens and milk have pushed the notion that prepuberty or even early pubertal children will see increases in BMD with the addition of increase Calcium intake. This data shows that ensuring adequate calcium intake in children reinforces the structure and rate at which bones will begin to densify. Further detailing how structuring a strong nutritional plan with adequate amounts of Calcium sources can lead to strong bones but also can be a worth-while strategy into preventing further damage or degradation of bone stores as we age.
The connection between Calcium intake & BMD and its effects on youth as a whole is a very world-wide issue and has been shown to affect different ethnicities in a variety of differing ways. In a recent study, The purpose of remodeling is to regulate calcium homeostasis, repair microdamaged bones from everyday stress, and to shape the skeleton during growth. Repeated stress, such as weight-bearing exercise or bone healing, results in the bone thickening at the points of maximum stress (Wolff's law). It has been hypothesized that this is a result of bone's piezoelectric properties, which cause bone to generate small electrical potentials under stress.
The action of osteoblasts and osteoclasts are controlled by a number of chemical enzymes that either promote or inhibit the activity of the bone remodeling cells, controlling the rate at which bone is made, destroyed, or changed in shape. The cells also use paracrine signalling to control the activity of each other. For example, the rate at which osteoclasts resorb bone is inhibited by calcitonin and osteoprotegerin. Calcitonin is produced by parafollicular cells in the thyroid gland, and can bind to receptors on osteoclasts to directly inhibit osteoclast activity. Osteoprotegerin is secreted by osteoblasts and is able to bind RANK-L, inhibiting osteoclast stimulation. Osteoblasts can also be induced to secrete a number of cytokines that promote reabsorption of bone by stimulating osteoclast activity and differentiation from progenitor cells. Vitamin D, parathyroid hormone and stimulation from osteocytes induce osteoblasts to increase secretion of RANK-ligand and interleukin 6, which cytokines then stimulate increased reabsorption of bone by osteoclasts. These same compounds also increase secretion of macrophage colony-stimulating factor by osteoblasts, which promotes the differentiation of progenitor cells into osteoclasts, and decrease secretion of osteoprotegerin.
Volume
Bone volume is determined by the rates of bone formation and bone resorption. Certain growth factors may work to locally alter bone formation by increasing osteoblast activity. Numerous bone-derived growth factors have been isolated and classified via bone cultures. These factors include insulin-like growth factors I and II, transforming growth factor-beta, fibroblast growth factor, platelet-derived growth factor, and bone morphogenetic proteins. Evidence suggests that bone cells produce growth factors for extracellular storage in the bone matrix. The release of these growth factors from the bone matrix could cause the proliferation of osteoblast precursors. Essentially, bone growth factors may act as potential determinants of local bone formation.
Clinical significance
A number of diseases can affect bone, including arthritis, fractures, infections, osteoporosis and tumors. Conditions relating to bone can be managed by a variety of doctors, including rheumatologists for joints, and orthopedic surgeons, who may conduct surgery to fix broken bones. Other doctors, such as rehabilitation specialists may be involved in recovery, radiologists in interpreting the findings on imaging, and pathologists in investigating the cause of the disease, and family doctors may play a role in preventing complications of bone disease such as osteoporosis.
When a doctor sees a patient, a history and exam will be taken. Bones are then often imaged, called radiography. This might include ultrasound X-ray, CT scan, MRI scan and other imaging such as a Bone scan, which may be used to investigate cancer. Other tests such as a blood test for autoimmune markers may be taken, or a synovial fluid aspirate may be taken.
Fractures
used to identify possible bone fractures after a knee injury]]
In normal bone, fractures occur when there is significant force applied or repetitive trauma over a long time. Fractures can also occur when a bone is weakened, such as with osteoporosis, or when there is a structural problem, such as when the bone remodels excessively (such as Paget's disease) or is the site of the growth of cancer. Common fractures include wrist fractures and hip fractures, associated with osteoporosis, vertebral fractures associated with high-energy trauma and cancer, and fractures of long-bones. Not all fractures are painful. When serious, depending on the fractures type and location, complications may include flail chest, compartment syndromes or fat embolism.
Compound fractures involve the bone's penetration through the skin. Some complex fractures can be treated by the use of bone grafting procedures that replace missing bone portions.
Fractures and their underlying causes can be investigated by X-rays, CT scans and MRIs. Fractures are described by their location and shape, and several classification systems exist, depending on the location of the fracture. A common long bone fracture in children is a Salter–Harris fracture. When fractures are managed, pain relief is often given, and the fractured area is often immobilised. This is to promote bone healing. In addition, surgical measures such as internal fixation may be used. Because of the immobilisation, people with fractures are often advised to undergo rehabilitation.
Tumors
Tumor that can affect bone in several ways. Examples of benign bone tumors include osteoma, osteoid osteoma, osteochondroma, osteoblastoma, enchondroma, giant-cell tumor of bone, and aneurysmal bone cyst.Cancer
Cancer can arise in bone tissue, and bones are also a common site for other cancers to spread (metastasise) to. Cancers that arise in bone are called "primary" cancers, although such cancers are rare. Metastases within bone are "secondary" cancers, with the most common being breast cancer, lung cancer, prostate cancer, thyroid cancer, and kidney cancer. Secondary cancers that affect bone can either destroy bone (called a "lytic" cancer) or create bone (a "sclerotic" cancer). Cancers of the bone marrow inside the bone can also affect bone tissue, examples including leukemia and multiple myeloma. Bone may also be affected by cancers in other parts of the body. Cancers in other parts of the body may release parathyroid hormone or parathyroid hormone-related peptide. This increases bone reabsorption, and can lead to bone fractures.
Bone tissue that is destroyed or altered as a result of cancers is distorted, weakened, and more prone to fracture. This may lead to compression of the spinal cord, destruction of the marrow resulting in bruising, bleeding and immunosuppression, and is one cause of bone pain. If the cancer is metastatic, then there might be other symptoms depending on the site of the original cancer. Some bone cancers can also be felt.
Cancers of the bone are managed according to their type, their stage, prognosis, and what symptoms they cause. Many primary cancers of bone are treated with radiotherapy. Cancers of bone marrow may be treated with chemotherapy, and other forms of targeted therapy such as immunotherapy may be used. Palliative care, which focuses on maximising a person's quality of life, may play a role in management, particularly if the likelihood of survival within five years is poor.DiabetesType 1 diabetes is an autoimmune disease in which the body attacks the insulin-producing pancreas cells causing the body to not make enough insulin. In contrast type 2 diabetes in which the body creates enough Insulin, but becomes resistant to it over time. over the first 24 months of the COVID-19 Pandemic. With the increase of developing some form of diabetes across all ranges continually growing the health impacts on bone development and bone health in these populations are still being researched. Most evidence suggests that diabetes, either Type 1 and Type 2, inhibits osteoblastic activity and causes both lower BMD and BMC in both adults and children. The weakening of these developmental aspects is thought to lead to an increased risk of developing many diseases such as osteoarthritis, osteoporosis, osteopenia and fractures. Development of any of these diseases is thought to be correlated with a decrease in ability to perform in athletic environments and activities of daily living.
Focusing on therapies that target molecules like osteocalcin or AGEs could provide new ways to improve bone health and help manage the complications of diabetes more effectively.
Other painful conditions
* Osteomyelitis is inflammation of the bone or bone marrow due to bacterial infection.
* Osteomalacia is a painful softening of adult bone caused by severe vitamin D deficiency.
* Osteogenesis imperfecta
* Osteochondritis dissecans
* Ankylosing spondylitis
* Skeletal fluorosis is a bone disease caused by an excessive accumulation of fluoride in the bones. In advanced cases, skeletal fluorosis damages bones and joints and is painful.
Osteoporosis
Osteoporosis is a disease of bone where there is reduced bone mineral density, increasing the likelihood of fractures. Osteoporosis is defined in women by the World Health Organization as a bone mineral density of 2.5 standard deviations below peak bone mass, relative to the age and sex-matched average. This density is measured using dual energy X-ray absorptiometry (DEXA), with the term "established osteoporosis" including the presence of a fragility fracture. Osteoporosis is most common in women after menopause, when it is called "postmenopausal osteoporosis", but may develop in men and premenopausal women in the presence of particular hormonal disorders and other chronic diseases or as a result of smoking and medications, specifically glucocorticoids. Osteoporosis usually has no symptoms until a fracture occurs. For this reason, DEXA scans are often done in people with one or more risk factors, who have developed osteoporosis and are at risk of fracture.
One of the most important risk factors for osteoporosis is advanced age. Accumulation of oxidative DNA damage in osteoblastic and osteoclastic cells appears to be a key factor in age-related osteoporosis.
Osteoporosis treatment includes advice to stop smoking, decrease alcohol consumption, exercise regularly, and have a healthy diet. Calcium and trace mineral supplements may also be advised, as may Vitamin D. When medication is used, it may include bisphosphonates, Strontium ranelate, and hormone replacement therapy.
Osteopathic medicine
Osteopathic medicine is a school of medical thought that links the musculoskeletal system to overall health. , over 77,000 physicians in the United States are trained in osteopathic medical schools. Bone health
Bone health is vastly important all throughout life due to a number of reasons, some of those being, without strong healthy bones we are more at risk for different chronic diseases, and fractures as well as day-to-day function being more difficult with poor bone health. Developing strong bones as a child is one of the most important steps to having healthy bones all throughout life because this is when a strong foundation is built, which will make it much easier to maintain musculoskeletal health in later years. Adolescence offers a window to really develop bones in either a positive or negative way. It is estimated that diet and exercise during these years can impact peak bone mass as an adult nearly 20-40%. One study done on children with developmental coordination disorder found an increase in bone mass up to 4% and 5% in the cortical areas of the tibia alone from a 13-week training period, which is truly significant when considering how participants only participated in the multimodal workouts twice per week, and it would be reasonable to expect these increases to be greater if workouts were more frequent, especially in youth without developmental coordination disorder. Peak bone mass occurs between the second and third decade of most people's lives, and with this being the case if we can really stockpile as much bone mass and increase our BMD and BMC by living healthy active lives, and having good diets that consume adequate calcium and vitamin D then we will truly have a leg up in our later lives as well as actively decreasing risks of certain chronic diseases such as osteoporosis. Osteology
]]
The study of bones and teeth is referred to as osteology. It is frequently used in anthropology, archeology and forensic science for a variety of tasks. This can include determining the nutritional, health, age or injury status of the individual the bones were taken from. Preparing fleshed bones for these types of studies can involve the process of maceration.
Typically anthropologists and archeologists study bone tools made by Homo sapiens and Homo neanderthalensis. Bones can serve a number of uses such as projectile points or artistic pigments, and can also be made from external bones such as antlers.
Other animals
in a cow's leg, due to industrial contamination]]
Bird skeletons are very lightweight. Their bones are smaller and thinner, to aid flight. Among mammals, bats come closest to birds in terms of bone density, suggesting that small dense bones are a flight adaptation. Many bird bones have little marrow due to them being hollow.
A bird's beak is primarily made of bone as projections of the mandibles which are covered in keratin.
Some bones, primarily formed separately in subcutaneous tissues, include headgears (such as bony core of horns, antlers, ossicones), osteoderm, and os penis/os clitoris. A deer's antlers are composed of bone which is an unusual example of bone being outside the skin of the animal once the velvet is shed.
The extinct predatory fish Dunkleosteus had sharp edges of hard exposed bone along its jaws.
The proportion of cortical bone that is 80% in the human skeleton may be much lower in other animals, especially in marine mammals and marine turtles, or in various Mesozoic marine reptiles, such as ichthyosaurs, among others. This proportion can vary quickly in evolution; it often increases in early stages of returns to an aquatic lifestyle, as seen in early whales and pinnipeds, among others. It subsequently decreases in pelagic taxa, which typically acquire spongy bone, but aquatic taxa that live in shallow water can retain very thick, pachyostotic, osteosclerotic, or pachyosteosclerotic bones, especially if they move slowly, like sea cows. In some cases, even marine taxa that had acquired spongy bone can revert to thicker, compact bones if they become adapted to live in shallow water, or in hypersaline (denser) water.
Many animals, particularly herbivores, practice osteophagy—the eating of bones. This is presumably carried out in order to replenish lacking phosphate.
Many bone diseases that affect humans also affect other vertebrates—an example of one disorder is skeletal fluorosis.
Society and culture
on a farm in Namibia]]
Bones from slaughtered animals have a number of uses. In prehistoric times, they have been used for making bone tools. They have further been used in bone carving, already important in prehistoric art, and also in modern time as crafting materials for buttons, beads, handles, bobbins, calculation aids, head nuts, dice, poker chips, pick-up sticks, arrows, scrimshaw, ornaments, etc.
Bone glue can be made by prolonged boiling of ground or cracked bones, followed by filtering and evaporation to thicken the resulting fluid. Historically once important, bone glue and other animal glues today have only a few specialized uses, such as in antiques restoration. Essentially the same process, with further refinement, thickening and drying, is used to make gelatin.
Broth is made by simmering several ingredients for a long time, traditionally including bones.
Bone char, a porous, black, granular material primarily used for filtration and also as a black pigment, is produced by charring mammal bones.
Oracle bone script was a writing system used in ancient China based on inscriptions in bones. Its name originates from oracle bones, which were mainly ox clavicle. The Ancient Chinese (mainly in the Shang dynasty), would write their questions on the oracle bone, and burn the bone, and where the bone cracked would be the answer for the questions.
To point the bone at someone is considered bad luck in some cultures, such as Australian aborigines, such as by the Kurdaitcha.
The wishbones of fowl have been used for divination, and are still customarily used in a tradition to determine which one of two people pulling on either prong of the bone may make a wish.
Various cultures throughout history have adopted the custom of shaping an infant's head by the practice of artificial cranial deformation. A widely practised custom in China was that of foot binding to limit the normal growth of the foot.
Additional images
<gallery>
File:Gray72-en.svg|Cells in bone marrow
File:Bertazzo S - SEM deproteined trabecular - wistar rat - x100.tif|Scanning electron microscope of bone at 100× magnification
File:Bone structure marco photo.jpg|Structure detail of an animal bone
</gallery>
See also
* Artificial bone
* Bone health
* Calcareous
* Cuttlebone
* Distraction osteogenesis
* National Bone Health Campaign
* Skeleton
* Ossicle (echinoderm)
* Ossification § Evolution
References
Sources
*
* }}
* }}
Further reading
*
*
*
*
External links
* [https://web.archive.org/web/20170509104452/http://depts.washington.edu/bonebio/ASBMRed/ASBMRed.html Educational resource materials (including animations) by the American Society for Bone and Mineral Research]
* [http://silver.neep.wisc.edu/~lakes/BoneElectr.html Review (including references) of piezoelectricity and bone remodelling]
* [http://www.scq.ubc.ca/?p=400 A good basic overview of bone biology from the Science Creative Quarterly]
* [http://www.histology-world.com/photoalbum/thumbnails.php?album=8 Bone histology photomicrographs]
Category:Skeletal system
Category:Connective tissue | https://en.wikipedia.org/wiki/Bone | 2025-04-05T18:26:41.284481 |
4100 | Bretwalda | 400px|thumb|right|The entry for 827 in the Anglo-Saxon Chronicle, which lists the eight bretwaldas
Bretwalda (also brytenwalda and bretenanwealda, sometimes capitalised) is an Old English word. The first record comes from the late 9th-century Anglo-Saxon Chronicle. It is given to some of the rulers of Anglo-Saxon kingdoms from the 5th century onwards who had achieved overlordship of some or all of the other Anglo-Saxon kingdoms. It is unclear whether the word dates back to the 5th century and was used by the kings themselves or whether it is a later, 9th-century, invention. The term bretwalda also appears in a 10th-century charter of Æthelstan. The literal meaning of the word is disputed and may translate to either 'wide-ruler' or 'Britain-ruler'.
The rulers of Mercia were generally the most powerful of the Anglo-Saxon kings from the mid 7th century to the early 9th century but are not accorded the title of bretwalda by the Chronicle, which had an anti-Mercian bias. The Annals of Wales continued to recognise the kings of Northumbria as "Kings of the Saxons" until the death of Osred I of Northumbria in 716.
Bretwaldas
thumb|The Anglo-Saxon kingdoms
Listed by the Anglo-Saxon Chronicle
thumb|An imaginary depiction of Edwin of Northumbria, from John Speed's Saxon Heptarchy (1611)
Ælle of Sussex (488– 514)
Ceawlin of Wessex (560–592, died 593)
Æthelberht of Kent (590–616)
Rædwald of East Anglia (c. 600–around 624)
Edwin of Deira (616–633)
Oswald of Northumbria (633–642)
Oswiu of Northumbria (642–670)
Egbert of Wessex (829–839)
Alfred of Wessex (871–899)
Mercian rulers with similar or greater authority
Penda of Mercia (626/633–655)
Wulfhere of Mercia (658–675)
Æthelred of Mercia (675–704, died 716)
Æthelbald of Mercia (716–757)
Offa of Mercia (757–796)
Cœnwulf of Mercia (796–821)
Other claimants
Æthelstan of Wessex (927–939)
Etymology
The first syllable of the term bretwalda may be related to Briton or Britain. The second element is taken to mean 'ruler' or 'sovereign'. Thus, one interpretation might be 'sovereign of Britain'. Otherwise, the word may be a compound containing the Old English adjective brytten ('broad', from the verb breotan meaning 'to break' or 'to disperse'), an element also found in the terms bryten rice ('kingdom'), bryten-grund ('the wide expanse of the earth') and bryten cyning ('king whose authority was widely extended'). Though the origin is ambiguous, the draughtsman of the charter issued by Æthelstan used the term in a way that can only mean 'wide-ruler'.
The latter etymology was first suggested by John Mitchell Kemble which Kemble translates as 'ruler of all these islands'; and that bryten- is a common prefix to words meaning 'wide or general dispersion' and that the similarity to the word bretwealh ('Briton') is "merely accidental". The chronicler also wrote down the names of seven kings that Bede listed in his Historia ecclesiastica gentis Anglorum in 731. All subsequent manuscripts of the Chronicle use the term Brytenwalda, which may have represented the original term or derived from a common error.
There is no evidence that the term was a title that had any practical use, with implications of formal rights, powers and office, or even that it had any existence before the 9th-century. Bede wrote in Latin and never used the term and his list of kings holding imperium should be treated with caution, not least in that he overlooks kings such as Penda of Mercia, who clearly held some kind of dominance during his reign. Similarly, in his list of bretwaldas, the West Saxon chronicler ignored such Mercian kings as Offa.
The use of the term Bretwalda was the attempt by a West Saxon chronicler to make some claim of West Saxon kings to the whole of Great Britain. The concept of the overlordship of the whole of Britain was at least recognised in the period, whatever was meant by the term. Quite possibly it was a survival of a Roman concept of "Britain": it is significant that, while the hyperbolic inscriptions on coins and titles in charters often included the title rex Britanniae, when England was unified the title used was rex Angulsaxonum, ('king of the Anglo-Saxons'.)
Modern interpretation by historians
For some time, the existence of the word bretwalda in the Anglo-Saxon Chronicle, which was based in part on the list given by Bede in his Historia Ecclesiastica, led historians to think that there was perhaps a "title" held by Anglo-Saxon overlords. This was particularly attractive as it would lay the foundations for the establishment of an English monarchy. The 20th-century historian Frank Stenton said of the Anglo-Saxon chronicler that "his inaccuracy is more than compensated by his preservation of the English title applied to these outstanding kings". He argued that the term bretwalda "falls into line with the other evidence which points to the Germanic origin of the earliest English institutions".
Over the later 20th century, this assumption was increasingly challenged. Patrick Wormald interpreted it as "less an objectively realized office than a subjectively perceived status" and emphasised the partiality of its usage in favour of Southumbrian rulers. In 1991, Steven Fanning argued that "it is unlikely that the term ever existed as a title or was in common usage in Anglo-Saxon England". The fact that Bede never mentioned a special title for the kings in his list implies that he was unaware of one.
Modern interpretations view the concept of bretwalda overlordship as complex and an important indicator of how a 9th-century chronicler interpreted history and attempted to insert the increasingly powerful Saxon kings into that history.
Overlordship
A complex array of dominance and subservience existed during the Anglo-Saxon period. A king who used charters to grant land in another kingdom indicated such a relationship. If the other kingdom were fairly large, as when the Mercians dominated the East Anglians, the relationship would have been more equal than in the case of the Mercian dominance of the Hwicce, which was a comparatively small kingdom. Mercia was arguably the most powerful Anglo-Saxon kingdom for much of the late 7th though 8th centuries, though Mercian kings are missing from the two main "lists". For Bede, Mercia was a traditional enemy of his native Northumbria and he regarded powerful kings such as the pagan Penda as standing in the way of the Christian conversion of the Anglo-Saxons. Bede omits them from his list, even though it is evident that Penda held a considerable degree of power. Similarly powerful Mercia kings such as Offa are missed out of the West Saxon Anglo-Saxon Chronicle, which sought to demonstrate the legitimacy of their kings to rule over other Anglo-Saxon peoples.
See also
List of monarchs of East Anglia
List of monarchs of Essex
List of monarchs of Kent
List of monarchs of Sussex
List of monarchs of Wessex
List of monarchs of Mercia
List of monarchs of Northumbria
List of English monarchs (to 1707)
List of legendary kings of Britain
Kings of the Britons (contemporaries with Anglo-Saxon kings)
High King
Emperor
Notes
References
Fanning, Steven. "Bede, Imperium, and the Bretwaldas." Speculum 66 (1991): 1–26.
Wormald, Patrick. "Bede, the Bretwaldas and the Origins of the Gens Anglorum." In Ideal and Reality in Frankish and Anglo-Saxon Society, ed. P. Wormald et al. Oxford, 1983. 99–129.
Further reading
Charles-Edwards, T. M. "The continuation of Bede, s.a. 750. High-kings, kings of Tara and Bretwaldas." In Seanchas. Studies in early and medieval Irish archaeology, history and literature in honour of Francis J. Byrne, ed. Alfred P. Smyth. Dublin: Four Courts, 2000. 137–45.
Dumville, David "The Terminology of Overkingship in Early Anglo-Saxon England." In The Anglo-Saxons from the Migration period to the Eighth Century. An Ethnographic Perspective, ed. J. Hines (1997): 345–65
Keynes, Simon. "Bretwalda." In The Blackwell Encyclopaedia of Anglo-Saxon England, ed. Michael Lapidge et al. Oxford, 1999.
Kirby, D. P. The Making of Early England. London, 1967.
Wormald, Patrick. "Bede, Beowulf and the conversion of the Anglo-Saxon aristocracy." In Bede and Anglo-Saxon England. Papers in honour of the 1300th anniversary of the birth of Bede, ed. R. T. Farrell. BAR, British series 46. 1978. 32–95.
Yorke, Barbara. "The vocabulary of Anglo-Saxon overlordship." Anglo-Saxon Studies in Archaeology and History 2 (1981): 171–200.
Category:Anglo-Saxon monarchs
Category:English monarchs
Category:Feudalism in England
Category:Royal titles | https://en.wikipedia.org/wiki/Bretwalda | 2025-04-05T18:26:41.294742 |
4101 | Brouwer fixed-point theorem | Brouwer's fixed-point theorem is a fixed-point theorem in topology, named after L. E. J. (Bertus) Brouwer. It states that for any continuous function f mapping a nonempty compact convex set to itself, there is a point x_0 such that f(x_0)=x_0. The simplest forms of Brouwer's theorem are for continuous functions f from a closed interval I in the real numbers to itself or from a closed disk D to itself. A more general form than the latter is for continuous functions from a nonempty convex compact subset K
of Euclidean space to itself.
Among hundreds of fixed-point theorems, Brouwer's is particularly well known, due in part to its use across numerous fields of mathematics. In its original field, this result is one of the key theorems characterizing the topology of Euclidean spaces, along with the Jordan curve theorem, the hairy ball theorem, the invariance of dimension and the Borsuk–Ulam theorem. This gives it a place among the fundamental theorems of topology. The theorem is also used for proving deep results about differential equations and is covered in most introductory courses on differential geometry. It appears in unlikely fields such as game theory. In economics, Brouwer's fixed-point theorem and its extension, the Kakutani fixed-point theorem, play a central role in the proof of existence of general equilibrium in market economies as developed in the 1950s by economics Nobel prize winners Kenneth Arrow and Gérard Debreu.
The theorem was first studied in view of work on differential equations by the French mathematicians around Henri Poincaré and Charles Émile Picard. Proving results such as the Poincaré–Bendixson theorem requires the use of topological methods. This work at the end of the 19th century opened into several successive versions of the theorem. The case of differentiable mappings of the -dimensional closed ball was first proved in 1910 by Jacques Hadamard and the general case for continuous mappings by Brouwer in 1911.
Statement
The theorem has several formulations, depending on the context in which it is used and its degree of generalization. The simplest is sometimes given as follows:
In the plane Every continuous function from a closed disk to itself has at least one fixed point.
This can be generalized to an arbitrary finite dimension:
In Euclidean spaceEvery continuous function from a closed ball of a Euclidean space into itself has a fixed point.
A slightly more general version is as follows:
Convex compact setEvery continuous function from a nonempty convex compact subset K of a Euclidean space to K itself has a fixed point.
An even more general form is better known under a different name:
Schauder fixed point theoremEvery continuous function from a nonempty convex compact subset K of a Banach space to K itself has a fixed point.
Importance of the pre-conditions
The theorem holds only for functions that are endomorphisms (functions that have the same set as the domain and codomain) and for nonempty sets that are compact (thus, in particular, bounded and closed) and convex (or homeomorphic to convex). The following examples show why the pre-conditions are important.
The function f as an endomorphism
Consider the function
f(x) = x+1
with domain [-1,1]. The range of the function is [0,2]. Thus, f is not an endomorphism.
Boundedness
Consider the function
f(x) = x+1,
which is a continuous function from \mathbb{R} to itself. As it shifts every point to the right, it cannot have a fixed point. The space \mathbb{R} is convex and closed, but not bounded.
Closedness
Consider the function
f(x) = \frac{x+1}{2},
which is a continuous function from the open interval (-1,1) to itself. Since the point x1 is not part of the interval, there is no point in the domain such that f(x) x. The set (-1,1) is convex and bounded, but not closed. On the other hand, the function f does have a fixed point in the closed interval [-1,1], namely x=1. The closed interval [-1,1] is compact, the open interval (-1,1) is not.
Convexity
Convexity is not strictly necessary for Brouwer's fixed-point theorem. Because the properties involved (continuity, being a fixed point) are invariant under homeomorphisms, Brouwer's fixed-point theorem is equivalent to forms in which the domain is required to be a closed unit ball D^n. For the same reason it holds for every set that is homeomorphic to a closed ball (and therefore also closed, bounded, connected, without holes, etc.).
The following example shows that Brouwer's fixed-point theorem does not work for domains with holes. Consider the function f(x)=-x, which is a continuous function from the unit circle to itself. Since -x≠x holds for any point of the unit circle, f has no fixed point. The analogous example works for the n-dimensional sphere (or any symmetric domain that does not contain the origin). The unit circle is closed and bounded, but it has a hole (and so it is not convex) . The function f have a fixed point for the unit disc, since it takes the origin to itself.
A formal generalization of Brouwer's fixed-point theorem for "hole-free" domains can be derived from the Lefschetz fixed-point theorem.
Notes
The continuous function in this theorem is not required to be bijective or surjective.
Illustrations
The theorem has several "real world" illustrations. Here are some examples.
Take two sheets of graph paper of equal size with coordinate systems on them, lay one flat on the table and crumple up (without ripping or tearing) the other one and place it, in any fashion, on top of the first so that the crumpled paper does not reach outside the flat one. There will then be at least one point of the crumpled sheet that lies directly above its corresponding point (i.e. the point with the same coordinates) of the flat sheet. This is a consequence of the n = 2 case of Brouwer's theorem applied to the continuous map that assigns to the coordinates of every point of the crumpled sheet the coordinates of the point of the flat sheet immediately beneath it.
Take an ordinary map of a country, and suppose that that map is laid out on a table inside that country. There will always be a "You are Here" point on the map which represents that same point in the country.
In three dimensions a consequence of the Brouwer fixed-point theorem is that, no matter how much you stir a delicious cocktail in a glass (or think about milk shake), when the liquid has come to rest, some point in the liquid will end up in exactly the same place in the glass as before you took any action, assuming that the final position of each point is a continuous function of its original position, that the liquid after stirring is contained within the space originally taken up by it, and that the glass (and stirred surface shape) maintain a convex volume. Ordering a cocktail shaken, not stirred defeats the convexity condition ("shaking" being defined as a dynamic series of non-convex inertial containment states in the vacant headspace under a lid). In that case, the theorem would not apply, and thus all points of the liquid disposition are potentially displaced from the original state.
Intuitive approach
Explanations attributed to Brouwer
The theorem is supposed to have originated from Brouwer's observation of a cup of gourmet coffee.
If one stirs to dissolve a lump of sugar, it appears there is always a point without motion.
He drew the conclusion that at any moment, there is a point on the surface that is not moving.
The fixed point is not necessarily the point that seems to be motionless, since the centre of the turbulence moves a little bit.
The result is not intuitive, since the original fixed point may become mobile when another fixed point appears.
Brouwer is said to have added: "I can formulate this splendid result different, I take a horizontal sheet, and another identical one which I crumple, flatten and place on the other. Then a point of the crumpled sheet is in the same place as on the other sheet." It was later proved by L. E. J. Brouwer in 1909. Jacques Hadamard proved the general case in 1910,
Before discovery
thumb|right|For flows in an unbounded area, or in an area with a "hole", the theorem is not applicable.
thumb|left|The theorem applies to any disk-shaped area, where it guarantees the existence of a fixed point.
At the end of the 19th century, the old problem of the stability of the solar system returned into the focus of the mathematical community.
Its solution required new methods. As noted by Henri Poincaré, who worked on the three-body problem, there is no hope to find an exact solution: "Nothing is more proper to give us an idea of the hardness of the three-body problem, and generally of all problems of Dynamics where there is no uniform integral and the Bohlin series diverge."
He also noted that the search for an approximate solution is no more efficient: "the more we seek to obtain precise approximations, the more the result will diverge towards an increasing imprecision".
He studied a question analogous to that of the surface movement in a cup of coffee. What can we say, in general, about the trajectories on a surface animated by a constant flow? Poincaré discovered that the answer can be found in what we now call the topological properties in the area containing the trajectory. If this area is compact, i.e. both closed and bounded, then the trajectory either becomes stationary, or it approaches a limit cycle. Poincaré went further; if the area is of the same kind as a disk, as is the case for the cup of coffee, there must necessarily be a fixed point. This fixed point is invariant under all functions which associate to each point of the original surface its position after a short time interval t. If the area is a circular band, or if it is not closed, then this is not necessarily the case.
To understand differential equations better, a new branch of mathematics was born. Poincaré called it analysis situs. The French Encyclopædia Universalis defines it as the branch which "treats the properties of an object that are invariant if it is deformed in any continuous way, without tearing". In 1886, Poincaré proved a result that is equivalent to Brouwer's fixed-point theorem, although the connection with the subject of this article was not yet apparent. A little later, he developed one of the fundamental tools for better understanding the analysis situs, now known as the fundamental group or sometimes the Poincaré group. This method can be used for a very compact proof of the theorem under discussion.
Poincaré's method was analogous to that of Émile Picard, a contemporary mathematician who generalized the Cauchy–Lipschitz theorem. Picard's approach is based on a result that would later be formalised by another fixed-point theorem, named after Banach. Instead of the topological properties of the domain, this theorem uses the fact that the function in question is a contraction.
First proofs
At the dawn of the 20th century, the interest in analysis situs did not stay unnoticed. However, the necessity of a theorem equivalent to the one discussed in this article was not yet evident. Piers Bohl, a Latvian mathematician, applied topological methods to the study of differential equations. In 1904 he proved the three-dimensional case of our theorem,
It was Brouwer, finally, who gave the theorem its first patent of nobility. His goals were different from those of Poincaré. This mathematician was inspired by the foundations of mathematics, especially mathematical logic and topology. His initial interest lay in an attempt to solve Hilbert's fifth problem. In 1909, during a voyage to Paris, he met Henri Poincaré, Jacques Hadamard, and Émile Borel. The ensuing discussions convinced Brouwer of the importance of a better understanding of Euclidean spaces, and were the origin of a fruitful exchange of letters with Hadamard. For the next four years, he concentrated on the proof of certain great theorems on this question. In 1912 he proved the hairy ball theorem for the two-dimensional sphere, as well as the fact that every continuous map from the two-dimensional ball to itself has a fixed point. These two results in themselves were not really new. As Hadamard observed, Poincaré had shown a theorem equivalent to the hairy ball theorem. The revolutionary aspect of Brouwer's approach was his systematic use of recently developed tools such as homotopy, the underlying concept of the Poincaré group. In the following year, Hadamard generalised the theorem under discussion to an arbitrary finite dimension, but he employed different methods. Hans Freudenthal comments on the respective roles as follows: "Compared to Brouwer's revolutionary methods, those of Hadamard were very traditional, but Hadamard's participation in the birth of Brouwer's ideas resembles that of a midwife more than that of a mere spectator."
Brouwer's approach yielded its fruits, and in 1910 he also found a proof that was valid for any finite dimension, In the context of this work, Brouwer also generalized the Jordan curve theorem to arbitrary dimension and established the properties connected with the degree of a continuous mapping. This branch of mathematics, originally envisioned by Poincaré and developed by Brouwer, changed its name. In the 1930s, analysis situs became algebraic topology.
Reception
thumb|220px|left|John Nash used the theorem in game theory to prove the existence of an equilibrium strategy profile.
The theorem proved its worth in more than one way. During the 20th century numerous fixed-point theorems were developed, and even a branch of mathematics called fixed-point theory.
Brouwer's theorem is probably the most important. It is also among the foundational theorems on the topology of topological manifolds and is often used to prove other important results such as the Jordan curve theorem.
Besides the fixed-point theorems for more or less contracting functions, there are many that have emerged directly or indirectly from the result under discussion. A continuous map from a closed ball of Euclidean space to its boundary cannot be the identity on the boundary. Similarly, the Borsuk–Ulam theorem says that a continuous map from the n-dimensional sphere to Rn has a pair of antipodal points that are mapped to the same point. In the finite-dimensional case, the Lefschetz fixed-point theorem provided from 1926 a method for counting fixed points. In 1930, Brouwer's fixed-point theorem was generalized to Banach spaces. This generalization is known as Schauder's fixed-point theorem, a result generalized further by S. Kakutani to set-valued functions. One also meets the theorem and its variants outside topology. It can be used to prove the Hartman-Grobman theorem, which describes the qualitative behaviour of certain differential equations near certain equilibria. Similarly, Brouwer's theorem is used for the proof of the Central Limit Theorem. The theorem can also be found in existence proofs for the solutions of certain partial differential equations.
Other areas are also touched. In game theory, John Nash used the theorem to prove that in the game of Hex there is a winning strategy for white. In economics, P. Bich explains that certain generalizations of the theorem show that its use is helpful for certain classical problems in game theory and generally for equilibria (Hotelling's law), financial equilibria and incomplete markets.
Brouwer's celebrity is not exclusively due to his topological work. The proofs of his great topological theorems are not constructive, and Brouwer's dissatisfaction with this is partly what led him to articulate the idea of constructivity. He became the originator and zealous defender of a way of formalising mathematics that is known as intuitionism, which at the time made a stand against set theory. Brouwer disavowed his original proof of the fixed-point theorem.
Proof outlines
A proof using degree
Brouwer's original 1911 proof relied on the notion of the degree of a continuous mapping, stemming from ideas in differential topology. Several modern accounts of the proof can be found in the literature, notably .
Let K=\overline{B(0)} denote the closed unit ball in \mathbb R^n centered at the origin. Suppose for simplicity that f:K\to K is continuously differentiable. A regular value of f is a point p\in B(0) such that the Jacobian of f is non-singular at every point of the preimage of p. In particular, by the inverse function theorem, every point of the preimage of f lies in B(0) (the interior of K). The degree of f at a regular value p\in B(0) is defined as the sum of the signs of the Jacobian determinant of f over the preimages of p under f:
\operatorname{deg}_p(f) = \sum_{x\in f^{-1}(p)} \operatorname{sign}\,\det (df_x).
The degree is, roughly speaking, the number of "sheets" of the preimage f lying over a small open set around p, with sheets counted oppositely if they are oppositely oriented. This is thus a generalization of winding number to higher dimensions.
The degree satisfies the property of homotopy invariance: let f and g be two continuously differentiable functions, and H_t(x)tf+(1-t)g for 0\le t\le 1. Suppose that the point p is a regular value of H_t for all t. Then \deg_p f \deg_p g.
If there is no fixed point of the boundary of K, then the function
g(x)=\frac{x-f(x)}{\sup_{y\in K}\left|y-f(y)\right|}
is well-defined, and
H(t,x) = \frac{x-tf(x)}{\sup_{y\in K}\left|y-tf(y)\right|}
defines a homotopy from the identity function to it. The identity function has degree one at every point. In particular, the identity function has degree one at the origin, so g also has degree one at the origin. As a consequence, the preimage g^{-1}(0) is not empty. The elements of g^{-1}(0) are precisely the fixed points of the original function f.
This requires some work to make fully general. The definition of degree must be extended to singular values of f, and then to continuous functions. The more modern advent of homology theory simplifies the construction of the degree, and so has become a standard proof in the literature.
A proof using the hairy ball theorem
The hairy ball theorem states that on the unit sphere in an odd-dimensional Euclidean space, there is no nowhere-vanishing continuous tangent vector field on . (The tangency condition means that = 0 for every unit vector .) Sometimes the theorem is expressed by the statement that "there is always a place on the globe with no wind". An elementary proof of the hairy ball theorem can be found in .
In fact, suppose first that is continuously differentiable. By scaling, it can be assumed that is a continuously differentiable unit tangent vector on . It can be extended radially to a small spherical shell of . For sufficiently small, a routine computation shows that the mapping () = + is a contraction mapping on and that the volume of its image is a polynomial in . On the other hand, as a contraction mapping, must restrict to a homeomorphism of onto (1 + ) and onto (1 + ) . This gives a contradiction, because, if the dimension of the Euclidean space is odd, (1 + )/2 is not a polynomial.
If is only a continuous unit tangent vector on , by the Weierstrass approximation theorem, it can be uniformly approximated by a polynomial map of into Euclidean space. The orthogonal projection on to the tangent space is given by () = () - () ⋅ . Thus is polynomial and nowhere vanishing on ; by construction /|||| is a smooth unit tangent vector field on , a contradiction.
The continuous version of the hairy ball theorem can now be used to prove the Brouwer fixed point theorem. First suppose that is even. If there were a fixed-point-free continuous self-mapping of the closed unit ball of the -dimensional Euclidean space , set
{\mathbf w}({\mathbf x}) = (1 - {\mathbf x}\cdot {\mathbf f}({\mathbf x}))\, {\mathbf x} - (1 - {\mathbf x}\cdot {\mathbf x})\, {\mathbf f}({\mathbf x}).
Since has no fixed points, it follows that, for in the interior of , the vector () is non-zero; and for in , the scalar product ⋅ () 1 – ⋅ () is strictly positive. From the original -dimensional space Euclidean space , construct a new auxiliary ()-dimensional space x R, with coordinates = (, ). Set
{\mathbf X}({\mathbf x},t)=(-t\,{\mathbf w}({\mathbf x}), {\mathbf x}\cdot {\mathbf w}({\mathbf x})).
By construction is a continuous vector field on the unit sphere of , satisfying the tangency condition ⋅ () 0. Moreover, () is nowhere vanishing (because, if has norm 1, then ⋅ () is non-zero; while if has norm strictly less than 1, then and () are both non-zero). This contradiction proves the fixed point theorem when is even. For odd, one can apply the fixed point theorem to the closed unit ball in dimensions and the mapping (,) ((),0).
The advantage of this proof is that it uses only elementary techniques; more general results like the Borsuk-Ulam theorem require tools from algebraic topology.
A proof using homology or cohomology
The proof uses the observation that the boundary of the n-disk Dn is Sn−1, the (n − 1)-sphere.
thumb|right|Illustration of the retraction F
Suppose, for contradiction, that a continuous function has no fixed point. This means that, for every point x in Dn, the points x and f(x) are distinct. Because they are distinct, for every point x in Dn, we can construct a unique ray from f(x) to x and follow the ray until it intersects the boundary Sn−1 (see illustration). By calling this intersection point F(x), we define a function F : Dn → Sn−1 sending each point in the disk to its corresponding intersection point on the boundary. As a special case, whenever x itself is on the boundary, then the intersection point F(x) must be x.
Consequently, F is a special type of continuous function known as a retraction: every point of the codomain (in this case Sn−1) is a fixed point of F.
Intuitively it seems unlikely that there could be a retraction of Dn onto Sn−1, and in the case n 1, the impossibility is more basic, because S0 (i.e., the endpoints of the closed interval D1) is not even connected. The case n 2 is less obvious, but can be proven by using basic arguments involving the fundamental groups of the respective spaces: the retraction would induce a surjective group homomorphism from the fundamental group of D2 to that of S1, but the latter group is isomorphic to Z while the first group is trivial, so this is impossible. The case n = 2 can also be proven by contradiction based on a theorem about non-vanishing vector fields.
For n > 2, however, proving the impossibility of the retraction is more difficult. One way is to make use of homology groups: the homology Hn−1(Dn) is trivial, while Hn−1(Sn−1) is infinite cyclic. This shows that the retraction is impossible, because again the retraction would induce an injective group homomorphism from the latter to the former group.
The impossibility of a retraction can also be shown using the de Rham cohomology of open subsets of Euclidean space En. For n ≥ 2, the de Rham cohomology of U = En – (0) is one-dimensional in degree 0 and n – 1, and vanishes otherwise. If a retraction existed, then U would have to be contractible and its de Rham cohomology in degree n – 1 would have to vanish, a contradiction.
A proof using Stokes' theorem
As in the proof of Brouwer's fixed-point theorem for continuous maps using homology, it is reduced to proving that there is no continuous retraction from the ball onto its boundary ∂. In that case it can be assumed that is smooth, since it can be approximated using the Weierstrass approximation theorem or by convolving with non-negative smooth bump functions of sufficiently small support and integral one (i.e. mollifying). If is a volume form on the boundary then by Stokes' theorem,
0
giving a contradiction.
More generally, this shows that there is no smooth retraction from any non-empty smooth oriented compact manifold onto its boundary. The proof using Stokes' theorem is closely related to the proof using homology, because the form generates the de Rham cohomology group (∂) which is isomorphic to the homology group (∂) by de Rham's theorem.
A combinatorial proof
The BFPT can be proved using Sperner's lemma. We now give an outline of the proof for the special case in which f is a function from the standard n-simplex, \Delta^n, to itself, where
\Delta^n \left\{P\in\mathbb{R}^{n+1}\mid\sum_{i 0}^{n}{P_i} = 1 \text{ and } P_i \ge 0 \text{ for all } i\right\}.
For every point P\in \Delta^n, also f(P)\in \Delta^n. Hence the sum of their coordinates is equal:
\sum_{i 0}^{n}{P_i} 1 \sum_{i 0}^{n}{f(P)_i}
Hence, by the pigeonhole principle, for every P\in \Delta^n, there must be an index j \in \{0, \ldots, n\} such that the jth coordinate of P is greater than or equal to the jth coordinate of its image under f:
P_j \geq f(P)_j.
Moreover, if P lies on a k-dimensional sub-face of \Delta^n, then by the same argument, the index j can be selected from among the coordinates which are not zero on this sub-face.
We now use this fact to construct a Sperner coloring. For every triangulation of \Delta^n, the color of every vertex P is an index j such that f(P)_j \leq P_j.
By construction, this is a Sperner coloring. Hence, by Sperner's lemma, there is an n-dimensional simplex whose vertices are colored with the entire set of available colors.
Because f is continuous, this simplex can be made arbitrarily small by choosing an arbitrarily fine triangulation. Hence, there must be a point P which satisfies the labeling condition in all coordinates: f(P)_j \leq P_j for all j.
Because the sum of the coordinates of P and f(P) must be equal, all these inequalities must actually be equalities. But this means that:
f(P) = P.
That is, P is a fixed point of f.
A proof by Hirsch
There is also a quick proof, by Morris Hirsch, based on the impossibility of a differentiable retraction. The indirect proof starts by noting that the map f can be approximated by a smooth map retaining the property of not fixing a point; this can be done by using the Weierstrass approximation theorem or by convolving with smooth bump functions. One then defines a retraction as above which must now be differentiable. Such a retraction must have a non-singular value, by Sard's theorem, which is also non-singular for the restriction to the boundary (which is just the identity). Thus the inverse image would be a 1-manifold with boundary. The boundary would have to contain at least two end points, both of which would have to lie on the boundary of the original ball—which is impossible in a retraction.
R. Bruce Kellogg, Tien-Yien Li, and James A. Yorke turned Hirsch's proof into a computable proof by observing that the retract is in fact defined everywhere except at the fixed points. For almost any point, q, on the boundary, (assuming it is not a fixed point) the one manifold with boundary mentioned above does exist and the only possibility is that it leads from q to a fixed point. It is an easy numerical task to follow such a path from q to the fixed point so the method is essentially computable. gave a conceptually similar path-following version of the homotopy proof which extends to a wide variety of related problems.
A proof using oriented area
A variation of the preceding proof does not employ the Sard's theorem, and goes as follows. If r\colon B\to \partial B is a smooth retraction, one considers the smooth deformation g^t(x):=t r(x)+(1-t)x, and the smooth function
\varphi(t):=\int_B \det D g^t(x) \, dx.
Differentiating under the sign of integral it is not difficult to check that (t) = 0 for all t, so φ is a constant function, which is a contradiction because φ(0) is the n-dimensional volume of the ball, while φ(1) is zero. The geometric idea is that φ(t) is the oriented area of gt(B) (that is, the Lebesgue measure of the image of the ball via gt, taking into account multiplicity and orientation), and should remain constant (as it is very clear in the one-dimensional case). On the other hand, as the parameter t passes from 0 to 1 the map gt transforms continuously from the identity map of the ball, to the retraction r, which is a contradiction since the oriented area of the identity coincides with the volume of the ball, while the oriented area of r is necessarily 0, as its image is the boundary of the ball, a set of null measure.
A proof using the game Hex
A quite different proof given by David Gale is based on the game of Hex. The basic theorem regarding Hex, first proven by John Nash, is that no game of Hex can end in a draw; the first player always has a winning strategy (although this theorem is nonconstructive, and explicit strategies have not been fully developed for board sizes of dimensions 10 x 10 or greater). This turns out to be equivalent to the Brouwer fixed-point theorem for dimension 2. By considering n-dimensional versions of Hex, one can prove in general that Brouwer's theorem is equivalent to the determinacy theorem for Hex.
A proof using the Lefschetz fixed-point theorem
The Lefschetz fixed-point theorem says that if a continuous map f from a finite simplicial complex B to itself has only isolated fixed points, then the number of fixed points counted with multiplicities (which may be negative) is equal to the Lefschetz number
\displaystyle \sum_n(-1)^n\operatorname{Tr}(f|H_n(B))
and in particular if the Lefschetz number is nonzero then f must have a fixed point. If B is a ball (or more generally is contractible) then the Lefschetz number is one because the only non-zero simplicial homology group is: H_0(B) and f acts as the identity on this group, so f has a fixed point.
A proof in a weak logical system
In reverse mathematics, Brouwer's theorem can be proved in the system WKL0, and conversely over the base system RCA0 Brouwer's theorem for a square implies the weak Kőnig's lemma, so this gives a precise description of the strength of Brouwer's theorem.
Generalizations
The Brouwer fixed-point theorem forms the starting point of a number of more general fixed-point theorems.
The straightforward generalization to infinite dimensions, i.e. using the unit ball of an arbitrary Hilbert space instead of Euclidean space, is not true. The main problem here is that the unit balls of infinite-dimensional Hilbert spaces are not compact. For example, in the Hilbert space ℓ2 of square-summable real (or complex) sequences, consider the map f : ℓ2 → ℓ2 which sends a sequence (xn) from the closed unit ball of ℓ2 to the sequence (yn) defined by
y_0 \sqrt{1 - \|x\|_2^2}\quad\text{ and}\quad y_n x_{n-1} \text{ for } n \geq 1.
It is not difficult to check that this map is continuous, has its image in the unit sphere of ℓ2, but does not have a fixed point.
The generalizations of the Brouwer fixed-point theorem to infinite dimensional spaces therefore all include a compactness assumption of some sort, and also often an assumption of convexity. See fixed-point theorems in infinite-dimensional spaces for a discussion of these theorems.
There is also finite-dimensional generalization to a larger class of spaces: If X is a product of finitely many chainable continua, then every continuous function f:X\rightarrow X has a fixed point, where a chainable continuum is a (usually but in this case not necessarily metric) compact Hausdorff space of which every open cover has a finite open refinement \{U_1,\ldots,U_m\}, such that U_i \cap U_j \neq \emptyset if and only if |i-j| \leq 1. Examples of chainable continua include compact connected linearly ordered spaces and in particular closed intervals of real numbers.
The Kakutani fixed point theorem generalizes the Brouwer fixed-point theorem in a different direction: it stays in Rn, but considers upper hemi-continuous set-valued functions (functions that assign to each point of the set a subset of the set). It also requires compactness and convexity of the set.
The Lefschetz fixed-point theorem applies to (almost) arbitrary compact topological spaces, and gives a condition in terms of singular homology that guarantees the existence of fixed points; this condition is trivially satisfied for any map in the case of Dn.
Equivalent results
See also
Banach fixed-point theorem
Fixed-point computation
Infinite compositions of analytic functions
Nash equilibrium
Poincaré–Miranda theorem – equivalent to the Brouwer fixed-point theorem
Topological combinatorics
Notes
References
(see p. 72–73 for Hirsch's proof utilizing non-existence of a differentiable retraction)
Leoni, Giovanni (2017). A First Course in Sobolev Spaces: Second Edition. Graduate Studies in Mathematics. 181. American Mathematical Society. pp. 734.
External links
Brouwer's Fixed Point Theorem for Triangles at cut-the-knot
Brouwer theorem , from PlanetMath with attached proof.
Reconstructing Brouwer at MathPages
Brouwer Fixed Point Theorem at Math Images.
Category:Fixed-point theorems
Category:Theory of continuous functions
Category:Theorems in topology
Category:Theorems in convex geometry | https://en.wikipedia.org/wiki/Brouwer_fixed-point_theorem | 2025-04-05T18:26:41.474230 |
4106 | Benzoic acid | | Section1 =
| UNII = 8SKN0B0MIM
| InChIKey = WPYMKLBDIGXBTP-UHFFFAOYAD
| StdInChI_Ref =
| StdInChI = 1S/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9)
| StdInChIKey_Ref =
| StdInChIKey = WPYMKLBDIGXBTP-UHFFFAOYSA-N
| CASNo = 65-85-0
| CASNo_Ref =
| EINECS = 200-618-2
| PubChem = 243
| ChemSpiderID_Ref =
| ChemSpiderID = 238
| ChEMBL_Ref =
| ChEMBL = 541
| DrugBank_Ref =
| DrugBank = DB03793
| SMILES OC(O)c1ccccc1
| InChI = 1/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9)
| RTECS = DG0875000
| MeSHName = benzoic+acid
| ChEBI_Ref =
| ChEBI = 30746
| KEGG_Ref =
| KEGG = D00038
| 3DMet = B00053
| Beilstein = 636131
| Gmelin = 2946
}}
| Section2 = g/cm<sup>3</sup> (15 °C)<br> 1.0749g/cm<sup>3</sup> (130 °C)
| Solubility 1.7g/L (0 °C)<br> 2.7g/L (18 °C)<br> 3.44g/L (25 °C)<br> 5.51g/L (40 °C)<br> 21.45g/L (75 °C)<br> 56.31g/L (100 °C)
| pKa =
| SolubleOther = Soluble in acetone, benzene, CCl<sub>4</sub>, CHCl<sub>3</sub>, alcohol, ethyl ether, hexane, phenyls, liquid ammonia, acetates
| Solubility1 30g/100g (−18 °C)<br> 32.1g/100g (−13 °C)<br> 71.5g/100g (23 °C)
| LogP = 1.87
| MagSus = −70.28·10<sup>−6</sup>cm<sup>3</sup>/mol
}}
| Section3 = D in dioxane
}}
| Section4 = kJ/mol
| GHSSignalWord = Danger
| HPhrases and serves as an intermediate in the biosynthesis of many secondary metabolites. Salts of benzoic acid are used as food preservatives. Benzoic acid is an important precursor for the industrial synthesis of many other organic substances. The salts and esters of benzoic acid are known as benzoates (). History Benzoic acid was discovered in the sixteenth century. The dry distillation of gum benzoin was first described by Nostradamus (1556), and then by Alexius Pedemontanus (1560) and Blaise de Vigenère (1596).
Justus von Liebig and Friedrich Wöhler determined the composition of benzoic acid. These latter also investigated how hippuric acid is related to benzoic acid.
In 1875 Salkowski discovered the antifungal properties of benzoic acid, which explains the preservation of benzoate-containing cloudberry fruits.
Production
Industrial preparations
Benzoic acid is produced commercially by partial oxidation of toluene with oxygen. The process is catalyzed by cobalt or manganese naphthenates. The process uses abundant materials, and proceeds in high yield.
:
The first industrial process involved the reaction of benzotrichloride (trichloromethyl benzene) with calcium hydroxide in water, using iron or iron salts as catalyst. The resulting calcium benzoate is converted to benzoic acid with hydrochloric acid. The product contains significant amounts of chlorinated benzoic acid derivatives. For this reason, benzoic acid for human consumption was obtained by dry distillation of gum benzoin. Food-grade benzoic acid is now produced synthetically.
Laboratory synthesis
Benzoic acid is cheap and readily available, so the laboratory synthesis of benzoic acid is mainly practiced for its pedagogical value. It is a common undergraduate preparation.
Benzoic acid can be purified by recrystallization from water because of its high solubility in hot water and poor solubility in cold water. The avoidance of organic solvents for the recrystallization makes this experiment particularly safe. This process usually gives a yield of around 65%.
By hydrolysis
Like other nitriles and amides, benzonitrile and benzamide can be hydrolyzed to benzoic acid or its conjugate base in acid or basic conditions.
From Grignard reagent
Bromobenzene can be converted to benzoic acid by "carboxylation" of the intermediate phenylmagnesium bromide. This synthesis offers a convenient exercise for students to carry out a Grignard reaction, an important class of carbon–carbon bond forming reaction in organic chemistry.
Oxidation of benzyl compounds
Benzyl alcohol and benzyl chloride and virtually all benzyl derivatives are readily oxidized to benzoic acid.
Uses
Benzoic acid is mainly consumed in the production of phenol by oxidative decarboxylation at 300−400 °C:
:
The temperature required can be lowered to 200 °C by the addition of catalytic amounts of copper(II) salts. The phenol can be converted to cyclohexanol, which is a starting material for nylon synthesis.
Precursor to plasticizers
Benzoate plasticizers, such as the glycol-, diethyleneglycol-, and triethyleneglycol esters, are obtained by transesterification of methyl benzoate with the corresponding diol. and some bacteria. It is either added directly or created from reactions with its sodium, potassium, or calcium salt. The mechanism starts with the absorption of benzoic acid into the cell. If the intracellular pH changes to 5 or lower, the anaerobic fermentation of glucose through phosphofructokinase is decreased by 95%. The efficacy of benzoic acid and benzoate is thus dependent on the pH of the food. Benzoic acid, benzoates
and their derivatives are used as preservatives for acidic foods and beverages such as citrus fruit juices (citric acid), sparkling drinks (carbon dioxide), soft drinks (phosphoric acid), pickles (vinegar) and other acidified foods.
Typical concentrations of benzoic acid as a preservative in food are between 0.05 and 0.1%. Foods in which benzoic acid may be used and maximum levels for its application are controlled by local food laws.
Concern has been expressed that benzoic acid and its salts may react with ascorbic acid (vitamin C) in some soft drinks, forming small quantities of carcinogenic benzene.
Medicinal
Benzoic acid is a constituent of Whitfield's ointment which is used for the treatment of fungal skin diseases such as ringworm and athlete's foot. As the principal component of gum benzoin, benzoic acid is also a major ingredient in both tincture of benzoin and Friar's balsam. Such products have a long history of use as topical antiseptics and inhalant decongestants.
Benzoic acid was used as an expectorant, analgesic, and antiseptic in the early 20th century.
Niche and laboratory uses
In teaching laboratories, benzoic acid is a common standard for calibrating a bomb calorimeter.
Biology and health effects
Benzoic acid occurs naturally as do its esters in many plant and animal species. Appreciable amounts are found in most berries (around 0.05%). Ripe fruits of several Vaccinium species (e.g., cranberry, V. vitis macrocarpon; bilberry, V. myrtillus) contain as much as 0.03–0.13% free benzoic acid. Benzoic acid is also formed in apples after infection with the fungus Nectria galligena. Among animals, benzoic acid has been identified primarily in omnivorous or phytophageous species, e.g., in viscera and muscles of the rock ptarmigan (Lagopus muta) as well as in gland secretions of male muskoxen (Ovibos moschatus) or Asian bull elephants (Elephas maximus).
In terms of its biosynthesis, benzoate is produced in plants from cinnamic acid. A pathway has been identified from phenol via 4-hydroxybenzoate.
Reactions
Reactions of benzoic acid can occur at either the aromatic ring or at the carboxyl group.
Aromatic ring
:
Electrophilic aromatic substitution reaction will take place mainly in 3-position due to the electron-withdrawing carboxylic group; i.e. benzoic acid is meta directing.
Carboxyl group
Reactions typical for carboxylic acids apply also to benzoic acid. Benzoic acid is metabolized by butyrate-CoA ligase into an intermediate product, benzoyl-CoA, which is then metabolized by glycine N-acyltransferase into hippuric acid. Humans metabolize toluene which is also excreted as hippuric acid.
For humans, the World Health Organization's International Programme on Chemical Safety (IPCS) suggests a provisional tolerable intake would be 5 mg/kg body weight per day. Cats have a significantly lower tolerance against benzoic acid and its salts than rats and mice. Lethal dose for cats can be as low as 300 mg/kg body weight. The oral for rats is 3040 mg/kg, for mice it is 1940–2263 mg/kg. See also * References External links
*
*
* [https://archive.today/20121209064921/http://www.chemicalland21.com/arokorhi/industrialchem/organic/BENZOIC%20ACID.htm ChemicalLand]
Category:Excipients
Category:Phenyl compounds
Category:E-number additives | https://en.wikipedia.org/wiki/Benzoic_acid | 2025-04-05T18:26:41.491833 |
4107 | Boltzmann distribution | upright=1.75|right|thumb|Boltzmann's distribution is an exponential distribution.
upright=1.75|right|thumb|Boltzmann factor (vertical axis) as a function of temperature for several energy differences .
In statistical mechanics and mathematics, a Boltzmann distribution (also called Gibbs distribution) is a probability distribution or probability measure that gives the probability that a system will be in a certain state as a function of that state's energy and the temperature of the system. The distribution is expressed in the form:
p_i \propto \exp\left(- \frac{\varepsilon_i}{kT} \right)
where is the probability of the system being in state , is the exponential function, is the energy of that state, and a constant of the distribution is the product of the Boltzmann constant and thermodynamic temperature . The symbol \propto denotes proportionality (see for the proportionality constant).
The term system here has a wide meaning; it can range from a collection of 'sufficient number' of atoms or a single atom to a macroscopic system such as a natural gas storage tank. Therefore, the Boltzmann distribution can be used to solve a wide variety of problems. The distribution shows that states with lower energy will always have a higher probability of being occupied.
The ratio of probabilities of two states is known as the Boltzmann factor and characteristically only depends on the states' energy difference:
\frac{p_i}{p_j} = \exp\left( \frac{\varepsilon_j - \varepsilon_i}{kT} \right)
The Boltzmann distribution is named after Ludwig Boltzmann who first formulated it in 1868 during his studies of the statistical mechanics of gases in thermal equilibrium. Boltzmann's statistical work is borne out in his paper “On the Relationship between the Second Fundamental Theorem of the Mechanical Theory of Heat and Probability Calculations Regarding the Conditions for Thermal Equilibrium"
The distribution was later investigated extensively, in its modern generic form, by Josiah Willard Gibbs in 1902.
The Boltzmann distribution should not be confused with the Maxwell–Boltzmann distribution or Maxwell-Boltzmann statistics. The Boltzmann distribution gives the probability that a system will be in a certain state as a function of that state's energy, while the Maxwell-Boltzmann distributions give the probabilities of particle speeds or energies in ideal gases. The distribution of energies in a one-dimensional gas however, does follow the Boltzmann distribution.
The distribution
The Boltzmann distribution is a probability distribution that gives the probability of a certain state as a function of that state's energy and temperature of the system to which the distribution is applied. It is given as
p_i\frac{1}{Q} \exp\left(- \frac{\varepsilon_i}{kT} \right) \frac{ \exp\left(- \tfrac{\varepsilon_i}{kT} \right) }{ \displaystyle \sum_{j=1}^{M} \exp\left(- \tfrac{\varepsilon_j}{kT} \right) }
where:
is the exponential function,
is the probability of state ,
is the energy of state ,
is the Boltzmann constant,
is the absolute temperature of the system,
is the number of all states accessible to the system of interest,
The distribution shows that states with lower energy will always have a higher probability of being occupied than the states with higher energy. It can also give us the quantitative relationship between the probabilities of the two states being occupied. The ratio of probabilities for states and is given as
\frac{p_i}{p_j} = \exp\left( \frac{\varepsilon_j - \varepsilon_i}{kT} \right)
where:
is the probability of state ,
the probability of state ,
is the energy of state ,
is the energy of state .
The corresponding ratio of populations of energy levels must also take their degeneracies into account.
The Boltzmann distribution is often used to describe the distribution of particles, such as atoms or molecules, over bound states accessible to them. If we have a system consisting of many particles, the probability of a particle being in state is practically the probability that, if we pick a random particle from that system and check what state it is in, we will find it is in state . This probability is equal to the number of particles in state divided by the total number of particles in the system, that is the fraction of particles that occupy state .
p_i = \frac{N_i}{N}
where is the number of particles in state and is the total number of particles in the system. We may use the Boltzmann distribution to find this probability that is, as we have seen, equal to the fraction of particles that are in state i. So the equation that gives the fraction of particles in state as a function of the energy of that state is In order for this to be possible, there must be some particles in the first state to undergo the transition. We may find that this condition is fulfilled by finding the fraction of particles in the first state. If it is negligible, the transition is very likely not observed at the temperature for which the calculation was done. In general, a larger fraction of molecules in the first state means a higher number of transitions to the second state. This gives a stronger spectral line. However, there are other factors that influence the intensity of a spectral line, such as whether it is caused by an allowed or a forbidden transition.
The softmax function commonly used in machine learning is related to the Boltzmann distribution:
(p_1, \ldots, p_M) = \operatorname{softmax} \left[- \frac{\varepsilon_1}{kT}, \ldots, - \frac{\varepsilon_M}{kT} \right]
Generalized Boltzmann distribution
Distribution of the form
\Pr\left(\omega\right)\propto\exp\left[\sum_{\eta=1}^{n}\frac{X_{\eta}x_{\eta}^{\left(\omega\right)}}{k_{B}T}-\frac{E^{\left(\omega\right)}}{k_{B}T}\right]
is called generalized Boltzmann distribution by some authors.
The Boltzmann distribution is a special case of the generalized Boltzmann distribution. The generalized Boltzmann distribution is used in statistical mechanics to describe canonical ensemble, grand canonical ensemble and isothermal–isobaric ensemble. The generalized Boltzmann distribution is usually derived from the principle of maximum entropy, but there are other derivations.
The generalized Boltzmann distribution has the following properties:
It is the only distribution for which the entropy as defined by Gibbs entropy formula matches with the entropy as defined in classical thermodynamics. The canonical ensemble can however still be applied to the collective states of the entire system considered as a whole, provided the entire system is in thermal equilibrium.
With quantum gases of non-interacting particles in equilibrium, the number of particles found in a given single-particle state does not follow Maxwell–Boltzmann statistics, and there is no simple closed form expression for quantum gases in the canonical ensemble. In the grand canonical ensemble the state-filling statistics of quantum gases are described by Fermi–Dirac statistics or Bose–Einstein statistics, depending on whether the particles are fermions or bosons, respectively.
In mathematics
In more general mathematical settings, the Boltzmann distribution is also known as the Gibbs measure.
In statistics and machine learning, it is called a log-linear model.
In deep learning, the Boltzmann distribution is used in the sampling distribution of stochastic neural networks such as the Boltzmann machine, restricted Boltzmann machine, energy-based models and deep Boltzmann machine. In deep learning, the Boltzmann machine is considered to be one of the unsupervised learning models. In the design of Boltzmann machine in deep learning, as the number of nodes are increased the difficulty of implementing in real time applications becomes critical, so a different type of architecture named Restricted Boltzmann machine is introduced.
In economics
The Boltzmann distribution can be introduced to allocate permits in emissions trading. The new allocation method using the Boltzmann distribution can describe the most probable, natural, and unbiased distribution of emissions permits among multiple countries.
The Boltzmann distribution has the same form as the multinomial logit model. As a discrete choice model, this is very well known in economics since Daniel McFadden made the connection to random utility maximization.
See also
Bose–Einstein statistics
Fermi–Dirac statistics
Negative temperature
Softmax function
References
Category:Statistical mechanics
Distribution | https://en.wikipedia.org/wiki/Boltzmann_distribution | 2025-04-05T18:26:41.506601 |
4109 | Leg theory | Leg theory is a bowling tactic in the sport of cricket. The term leg theory is somewhat archaic, but the basic tactic remains a play in modern cricket.
Simply put, leg theory involves concentrating the bowling attack at or near the line of leg stump. This may or may not be accompanied by a concentration of fielders on the leg side. The line of attack aims to cramp the batsman, making him play the ball with the bat close to the body. This makes it difficult to hit the ball freely and score runs, especially on the off side. Since a leg theory attack means the batsman is more likely to hit the ball on the leg side, additional fielders on that side of the field can be effective in preventing runs and taking catches.
Stifling the batsman in this manner can lead to impatience and frustration, resulting in rash play by the batsman which in turn can lead to a quick dismissal. Concentrating attack on the leg stump is considered by many cricket fans and commentators to lead to boring play, as it stifles run scoring and encourages batsmen to play conservatively.
Leg theory can be a moderately successful tactic when used with both fast bowling and spin bowling, particularly leg spin to right-handed batsmen or off spin to left-handed batsmen. However, because it relies on lack of concentration or discipline by the batsman, it can be risky against patient and skilled players, especially batsmen who are strong on the leg side. The English opening bowlers Sydney Barnes and Frank Foster used leg theory with some success in Australia in 1911–12. In England, at around the same time, Fred Root was one of the main proponents of the same tactic.
Fast leg theory
In 1930, England captain Douglas Jardine, together with Nottinghamshire's captain Arthur Carr and his bowlers Harold Larwood and Bill Voce, developed a variant of leg theory in which the bowlers bowled fast, short-pitched balls that would rise into the batsman's body, together with a heavily stacked ring of close fielders on the leg side. The idea was that when the batsman defended against the ball, he would be likely to deflect the ball into the air for a catch.
Jardine called this modified form of the tactic fast leg theory. On the 1932–33 English tour of Australia, Larwood and Voce bowled fast leg theory at the Australian batsmen. It turned out to be extremely dangerous, and most Australian players sustained injuries from being hit by the ball. Wicket-keeper Bert Oldfield's skull was fractured by a ball hitting his head (although the ball had first glanced off the bat and Larwood had an orthodox field), almost precipitating a riot by the Australian crowd.
The Australian press dubbed the tactic Bodyline, and claimed it was a deliberate attempt by the English team to intimidate and injure the Australian players. Reports of the controversy reaching England at the time described the bowling as fast leg theory, which sounded to many people to be a harmless and well-established tactic. This led to a serious misunderstanding amongst the English public and the Marylebone Cricket Club – the administrators of English cricket – of the dangers posed by Bodyline. The English press and cricket authorities declared the Australian protests to be a case of sore losing and "squealing".
It was only with the return of the English team and the subsequent use of Bodyline against English players in England by the touring West Indian cricket team in 1933 that demonstrated to the country the dangers it posed. The MCC subsequently revised the Laws of Cricket to prevent the use of "fast leg theory" tactics in future, also limiting the traditional tactic.
See also
Off theory
References
Category:Cricket captaincy and tactics
Category:Bowling (cricket) | https://en.wikipedia.org/wiki/Leg_theory | 2025-04-05T18:26:41.508415 |
4110 | Blythe Danner | | birth_place = Philadelphia, Pennsylvania, U.S.
| death_date | death_place
| death_cause | alma_mater Bard College
| occupation = Actress
| years_active = 1965–present
| spouse
| children =
| relatives = Harry Danner (brother)<br>Katherine Moennig (niece)<br>Apple Martin (granddaughter)
}}
Blythe Katherine Danner (born February 3, 1943) is an American actress. Accolades she has received include two Primetime Emmy Awards for Best Supporting Actress in a Drama Series for her role as Izzy Huffstodt on Huff (2004–2006), and a Tony Award for Best Featured Actress for her performance in Butterflies Are Free on Broadway (1969–1972). Danner was twice nominated for the Primetime Emmy for Outstanding Guest Actress in a Comedy Series for portraying Marilyn Truman on Will & Grace (2001–06; 2018–20), and the Primetime Emmy for Outstanding Lead Actress in a Miniseries or Movie for her roles in We Were the Mulvaneys (2002) and Back When We Were Grownups (2004). For the latter, she also received a Golden Globe Award nomination.
Danner played Dina Byrnes in Meet the Parents (2000) and its sequels Meet the Fockers (2004) and Little Fockers (2010). She has collaborated on several occasions with Woody Allen, appearing in three of his films: Another Woman (1988), Alice (1990), and Husbands and Wives (1992). Her other notable film credits include 1776 (1972), Hearts of the West (1975), The Great Santini (1979), Mr. & Mrs. Bridge (1990), The Prince of Tides (1991), To Wong Foo, Thanks for Everything! Julie Newmar (1995), The Myth of Fingerprints (1997), The X-Files (1998), Forces of Nature (1999), The Love Letter (1999), The Last Kiss (2006), Paul (2011), Hello I Must Be Going (2012), ''I'll See You in My Dreams (2015), and What They Had'' (2018).
Danner is the sister of Harry Danner and the widow of Bruce Paltrow. She is the mother of actress Gwyneth Paltrow and director Jake Paltrow. She is the grandmother of media personality Apple Martin.
Early life
Danner was born in Philadelphia, Pennsylvania, the daughter of Katharine (née Kile) and Harry Earl Danner, a bank executive. She has a brother, opera singer and actor Harry Danner, a sister and a maternal half-brother. Danner has Pennsylvania Dutch, some English and Irish ancestry; her maternal grandmother was a German immigrant, and one of her paternal great-grandmothers was born in Barbados to a family of European descent.
Danner graduated from George School, a Quaker high school located near Newtown, Bucks County, Pennsylvania, in 1960.
Career
A graduate of Bard College, Danner's first roles included the 1967 musical Mata Hari and the 1968 Off-Broadway production of Summertree. Her early Broadway appearances included Cyrano de Bergerac (1968) and her Theatre World Award-winning performance in The Miser (1969). She won the Tony Award for Best Featured Actress in a Play for portraying a free-spirited divorcée in Butterflies Are Free (1970).
In 1972, Danner portrayed Martha Jefferson in the film version of 1776. That same year, she played the unknowing wife of a husband who committed murder, opposite Peter Falk and John Cassavetes, in the Columbo episode "Étude in Black".
Her earliest starring film role was opposite Alan Alda in To Kill a Clown (1972). Danner appeared in the episode of M*A*S*H entitled "The More I See You", playing the love interest of Alda's character Hawkeye Pierce. She played lawyer Amanda Bonner in television's ''Adam's Rib, opposite Ken Howard as Adam Bonner. She played Zelda Fitzgerald in F. Scott Fitzgerald and 'The Last of the Belles' (1974). She was the eponymous heroine in the film Lovin' Molly (1974) (directed by Sidney Lumet). She appeared in Futureworld, playing Tracy Ballard with co-star Peter Fonda (1976). In the 1982 TV movie Inside the Third Reich'', she played the wife of Albert Speer. In the film version of Neil Simon's semi-autobiographical play Brighton Beach Memoirs (1986), she portrayed a middle-aged Jewish mother. She has appeared in two films based on the novels of Pat Conroy, The Great Santini (1979) and The Prince of Tides (1991), as well as two television movies adapted from books by Anne Tyler, Saint Maybe and Back When We Were Grownups, both for the Hallmark Hall of Fame.
Danner appeared opposite Robert De Niro in the 2000 comedy hit Meet the Parents, and its sequels, Meet the Fockers (2004) and Little Fockers (2010).
From 2001 to 2006, she regularly appeared on NBC's sitcom Will & Grace as Will Truman's mother Marilyn. From 2004 to 2006, she starred in the main cast of the comedy-drama series Huff. In 2005, she was nominated for three Primetime Emmy Awards for her work on Will & Grace, Huff, and the television film Back When We Were Grownups, winning for her role in Huff. The following year, she won a second consecutive Emmy Award for Huff. For 25 years, she has been a regular performer at the Williamstown Summer Theater Festival, where she also serves on the board of directors.
In 2006, Danner was awarded an inaugural Katharine Hepburn Medal by Bryn Mawr College's Katharine Houghton Hepburn Center. In 2015, Danner was inducted into the American Theater Hall of Fame.Environmental activismDanner has been involved in environmental issues such as recycling and conservation for over 30 years. She has been active with INFORM, Inc., is on the Board of Environmental Advocates of New York and the board of directors of the Environmental Media Association, and won the 2002 EMA Board of Directors Ongoing Commitment Award. In 2011, Danner joined Moms Clean Air Force, to help call on parents to join in the fight against toxic air pollution.Health care activismAfter the death of her husband Bruce Paltrow from oral cancer, she became involved with the nonprofit Oral Cancer Foundation. In 2005, she filmed a public service announcement to raise public awareness of the disease and the need for early detection. She has since appeared on morning talk shows and given interviews in such magazines as People. The Bruce Paltrow Oral Cancer Fund, administered by the Oral Cancer Foundation, raises funding for oral cancer research and treatment, with a particular focus on those communities in which healthcare disparities exist.
She has also appeared in commercials for Prolia, a brand of denosumab used in the treatment of osteoporosis.
Personal life
Danner was married to producer and director Bruce Paltrow, who died of oral cancer in 2002. She and Paltrow had two children together, actress Gwyneth Paltrow and director Jake Paltrow.
Danner's niece is the actress Katherine Moennig, the daughter of her maternal half-brother William.
Danner co-starred with her daughter in the 1992 television film Cruel Doubt and again in the 2003 film Sylvia, in which she portrayed Aurelia Plath, mother to Gwyneth's title role of Sylvia Plath.
Danner is a practitioner of transcendental meditation, which she has described as "very helpful and comforting".
Acting credits
Film
{| class="wikitable sortable"
|-
! Year
! Title
! Role
! class="unsortable" | Notes
|-
| rowspan="2" | 1972 || To Kill a Clown || Lily Frischer ||
|-
| 1776 || Martha Jefferson ||
|-
| 1974 || ''Lovin' Molly || Molly Taylor ||
|-
| 1975 || Hearts of the West || Miss Trout ||
|-
| 1976 || Futureworld || Tracy Ballard ||
|-
| 1979 || The Great Santini || Lillian Meechum ||
|-
| rowspan="2" | 1983 || Inside the Third Reich || Margarete Speer||
|-
| Man, Woman and Child'' || Sheila Beckwith ||
|-
| 1985 || 'Guilty Conscience' || Louise Jamison ||
|-
| 1986 || Brighton Beach Memoirs || Kate Jerome ||
|-
| 1988 || Another Woman || Lydia ||
|-
| rowspan="2" | 1990 || Mr. & Mrs. Bridge || Grace Barron ||
|-
| Alice || Dorothy Smith ||
|-
| 1991 || The Prince of Tides || Sally Wingo ||
|-
| 1992 || Husbands and Wives || Rain's Mother ||
|-
| rowspan="3" | 1995 || Napoleon || Mother Dingo ||
|-
| Homage || Katherine Samuel ||
|-
| To Wong Foo, Thanks for Everything! Julie Newmar || Beatrice ||
|-
| rowspan="2" | 1997 || The Myth of Fingerprints || Lena ||
|-
| Mad City || Mrs. Banks ||
|-
| rowspan="3" | 1998 || The Proposition || Syril Danning ||
|-
| No Looking Back || Claudia's Mother ||
|-
| The X-Files || Jana Cassidy ||
|-
| rowspan="3" | 1999 || Forces of Nature || Virginia Cahill ||
|-
| The Love Letter || Lillian MacFarquhar ||
|-
| Things I Forgot to Remember || Mrs. Bradford ||
|-
| 2000 || Meet the Parents || Dina Byrnes ||
|-
| 2001 || The Invisible Circus || Gail O'Connor ||
|-
| rowspan="2" | 2003 || Three Days of Rain || Woman in Cab ||
|-
| Sylvia || Aurelia Plath ||
|-
| rowspan="2" | 2004 || ''Howl's Moving Castle || Madam Suliman || Voice role; English dub
|-
| Meet the Fockers || Dina Byrnes ||
|-
| rowspan="2" | 2006 || Stolen || Isabella Stewart Gardner ||
|-
| The Last Kiss || Anna ||
|-
| 2008 || The Sisterhood of the Traveling Pants 2 || Greta Randolph ||
|-
| rowspan="3" | 2009 || Waiting for Forever || Miranda Twist ||
|-
| Beyond All Boundaries || Elsa Maxwell || Voice; Documentary
|-
| The Lightkeepers || Mrs. Bascom ||
|-
| 2010 || Little Fockers || Dina Byrnes ||
|-
| rowspan="3" | 2011 || Paul || Tara Walton ||
|-
| What's Your Number? || Ava Darling ||
|-
| Detachment || Mrs. Perkins ||
|-
| rowspan="2" | 2012 || The Lucky One || Ellie Green ||
|-
| Hello I Must Be Going || Ruth Minsky ||
|-
| 2014 || Murder of a Cat || Edie Moisey ||
|-
| rowspan="2" | 2015 || I'll See You in My Dreams || Carol Petersen ||
|-
| Tumbledown || Linda Jespersen ||
|-
| rowspan="3" | 2018 || What They Had || Ruth O’Shea ||
|-
| Hearts Beat Loud || Marianne Fisher ||
|-
| The Chaperone'' || Mary O'Dell ||
|-
| rowspan="2" | 2019 || The Tomorrow Man || Ronnie Meisner ||
|-
| Strange but True || Gail Erwin ||
|-
| 2023 || Happiness for Beginners || Gigi ||
|}
Television
{| class="wikitable sortable"
|-
! Year
! Title
! Role
! class="unsortable" | Notes
|-
| 1970 || George M! || Agnes Nolan Cohan || rowspan="2" | Television film
|-
| 1971 || ''Dr. Cook's Garden || Janey Rausch
|-
| 1972 || Columbo || Janice Benedict || Episode: "Etude in Black"
|-
| 1973 || Adam's Rib || Amanda Bonner || 13 episodes
|-
| rowspan"2" | 1974 || F. Scott Fitzgerald and 'The Last of the Belles' || Zelda Fitzgerald || rowspan"2" | Television film
|-
| Sidekicks || Prudy Jenkins
|-
| 1975 || Great Performances || Nina Zarechnaya || Episode: "The Seagull"
|-
| rowspan="3" | 1976 || M*A*S*H || Carlye Breslin Walton || Episode: "The More I See You"
|-
| A Love Affair: The Eleanor and Lou Gehrig Story || Eleanor Twitchell Gehrig || Television film
|-
| Great Performances || Alma Winemiller || Episode: "Eccentricites of a Nightingale"
|-
| 1977 || The Court-Martial of George Armstrong Custer || Mrs. Custer|| rowspan="5" | Television film
|-
| 1978 || Are You in the House Alone? || Anne Osbourne
|-
| rowspan="2" | 1979 || Too Far to Go || Joan Barlow Maple
|-
| You Can't Take It with You || Alice Sycamore
|-
| rowspan="2" | 1982 || Inside the Third Reich || Margarete Speer
|-
| Saturday Night Live || Guest host || Episode: "Blythe Danner / Rickie Lee Jones"
|-
| 1983 || In Defense of Kids || Ellen Wilcox|| rowspan="3" | Television film
|-
| rowspan="2" | 1984 || Guilty Conscience || Louise Jamison
|-
| Helen Keller: The Miracle Continues || Anne Sullivan
|-
| 1988–1989 || Tattingers || Hillary Tattinger || 13 episodes
|-
| 1989 || Money, Power, Murder || Jeannie || rowspan="4" | Television film
|-
| 1990 || Judgment || Emmeline Guitry
|-
| rowspan="4" | 1992 || Getting Up and Going Home || Lily
|-
| Cruel Doubt || Bonnie Van Stein
|-
| Tales from the Crypt || Margaret || Episode: "Maniac at Large"
|-
| Lincoln || Elizabeth Todd Edwards|| rowspan="2" | Television film
|-
| rowspan="2" | 1993 || Tracey Ullman Takes on New York || Eleanor Levine
|-
| Great Performances || Narrator || Episode: "The Maestros of Philadelphia"
|-
| rowspan"2" | 1994 || Oldest Living Confederate Widow Tells All || Bianca Honicut || rowspan"4" | Television film
|-
| Leave of Absence || Elisa
|-
| rowspan="2" | 1997 || Thomas Jefferson || Martha Jefferson
|-
| A Call to Remember || Paula Tobias
|-
| rowspan="3" | 1998 || From the Earth to the Moon || Narrator || Episode: "Le voyage dans la lune"
|-
| Saint Maybe || Bee Bedloe || rowspan="2" | Television film
|-
| Murder She Purred: A Mrs. Murphy Mystery || Mrs. Murphy
|-
| 2001–2006,<br>2018–2020 || Will & Grace || Marilyn Truman || Recurring role
|-
| rowspan="2" | 2002 || We Were the Mulvaneys || Corinne Mulvaney || Television film
|-
| Presidio Med || Dr. Harriet Lanning || 3 episodes
|-
| 2003 || Two and a Half Men'' || Evelyn Harper || Episode: "Most Chicks Won't Eat Veal" (unaired pilot)
|-
| 2004 || Back When We Were Grownups || Rebecca Holmes Davitch || Television film
|-
| 2004–2006 || Huff || Isabelle Huffstodt || Main role
|-
| rowspan="2" | 2009 || Medium || Louise Leaming || Episode: "A Taste of Her Own Medicine"
|-
| Nurse Jackie || Maureen Cooper || Episode: "Tiny Bubbles"
|-
| 2011–2012 || Up All Night || Dr. Angie Chafin || 3 episodes
|-
| 2015 || The Slap || Virginia Latham || Episode: "Anouk"
|-
| rowspan="2" | 2016 || Madoff || Ruth Madoff || 4 episodes
|-
| Odd Mom Out || Jill's Mom || Episode: "Fasting and Furious"
|-
| 2017 || Gypsy || Nancy || 4 episodes
|-
| 2018 || Patrick Melrose || Nancy Valance || Miniseries
|-
| 2021 || American Gods || Demeter || 2 episodes
|-
| 2021–2023 || Ridley Jones || Sylvia Jones (voice) || Recurring role
|}
Stage
{| class="wikitable sortable"
|-
! Year
! Title
! Role
! Venue
! class="unsortable" |
|-
| 1965 || The Glass Menagerie || Laura Wingfield || Theater Company of Boston ||
|-
| 1967 || Three Sisters || Irina Prozorova || Trinity Square Playhouse ||
|-
| rowspan="3" | 1968 || Cyrano de Bergerac || Sister Marthe || Vivian Beaumont Theater ||
|-
| Up Eden || Violet Beam || Jan Hus Playhouse Theater ||
|-
| Lovers || Margaret Mary Enright || Vivian Beaumont Theater ||
|-
| rowspan="2" | 1969 || ''Someone's Comin' Hungry || Connie Odum || Pocket Theatre ||
|-
| The Miser || Elise || Vivian Beaumont Theater ||
|-
| 1969–1972 || Butterflies Are Free || Jill Tanner || Booth Theatre ||
|-
| 1971 || Major Barbara || Barbara Undershaft || Mark Taper Forum ||
|-
| 1972 || Twelfth Night || Viola || Vivian Beaumont Theater ||
|-
| 1974 || The Seagull || Nina Zarechnaya || Williamstown Theatre Festival ||
|-
| 1975 || Ring Round the Moon || Isabelle || Williamstown Theatre Festival ||
|-
| 1977 || The New York Idea || Cynthia Karslake || Brooklyn Academy of Music ||
|-
| 1979 || Children of the Sun || Lisa || Williamstown Theatre Festival ||
|-
| 1980 || Betrayal || Emma || Trafalgar Theatre ||
|-
| 1980–1981 || The Philadelphia Story || Tracy Samantha Lord || Vivian Beaumont Theater ||
|-
| 1987 || Blithe Spirit || Elvira Condomine || Neil Simon Theatre ||
|-
| rowspan"2" | 1988 || Much Ado About Nothing || Beatrice || Delacorte Theater ||
|-
| A Streetcar Named Desire || Blanche DuBois || Circle in the Square Theatre ||<ref name=tul/>
|-
| 1989 || Love Letters || Melissa Gardner || Promenade Theatre ||
|-
| 1991 || Picnic || Rosemary Sydney || Williamstown Theatre Festival ||
|-
| 1994 || The Seagull || Irina Arkadina || Williamstown Theatre Festival ||
|-
| 1995 || Sylvia || Kate || New York City Center ||
|-
| 1995–1996 || Moonlight || Bel || Laura Pels Theatre ||
|-
| 1998 || The Deep Blue Sea || Hester Collyer || Criterion Center Stage Right ||
|-
| 2000 || Tonight at 8.30 || Jane Featherways || Williamstown Theatre Festival ||
|-
| 2001 || Follies || Phyllis Rogers Stone || Belasco Theatre ||
|-
| 2002 || Carousel || Mrs. Mullin || Carnegie Hall ||
|-
| 2003 || All About Eve || Karen Richards || Ahmanson Theatre ||
|-
| 2006 || Suddenly Last Summer || Violet Venable || Laura Pels Theatre ||
|-
| 2012–2013 || Nice Work If You Can Get It || Millicent Winter || Imperial Theatre ||
|-
| 2014 || The Country House || Anna Paterson || Samuel J. Friedman Theatre ||
|}
Awards and nominations
{| class="wikitable sortable"
|-
! Year
! Nominated work
! Award
! Result
|-
| 1969 || The Miser || Theatre World Award ||
|-
| 1970 || Butterflies Are Free || Tony Award for Best Featured Actress in a Play ||
|-
| 1976 || Futureworld || Saturn Award for Best Actress ||
|-
| 1977 || The New York Idea || Drama Desk Award for Outstanding Actress in a Play ||
|-
| rowspan"2" | 1980 || rowspan"2" | Betrayal || Tony Award for Best Actress in a Play ||
|-
| Drama Desk Award for Outstanding Actress in a Play ||
|-
| 1988 || A Streetcar Named Desire || Tony Award for Best Actress in a Play ||
|-
| 2001 || Follies || Tony Award for Best Actress in a Musical ||
|-
| 2002 || We Were the Mulvaneys || Primetime Emmy Award for Outstanding Lead Actress in a Miniseries or a Movie ||
|-
| rowspan"2" | 2004 || rowspan"2" | Back When We Were Grownups || Golden Globe Award for Best Actress – Miniseries or Television Film ||
|-
| Primetime Emmy Award for Outstanding Lead Actress in a Miniseries or a Movie ||
|-
| rowspan="2" | 2005 || Huff || Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series ||
|-
| Will & Grace || Primetime Emmy Award for Outstanding Guest Actress in a Comedy Series ||
|-
| rowspan="4" | 2006 || Huff || Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series ||
|-
| Suddenly Last Summer || Drama Desk Award for Outstanding Actress in a Play ||
|-
| Will & Grace || Primetime Emmy Award for Outstanding Guest Actress in a Comedy Series ||
|-
| The Last Kiss || Satellite Award for Best Supporting Actress – Motion Picture ||
|-
| rowspan"2" | 2015 || rowspan"2" | ''I'll See You in My Dreams'' || Gotham Award for Best Actress ||
|-
| Satellite Award for Best Actress – Motion Picture ||
|-
|}
References
External links
*
*
*
*
* [https://web.archive.org/web/20040822065351/http://ema-online.org/greenlight_2003_spring_in_focus.htm 2003 article] from the Environmental Media Association
* Blythe Danner interview: [https://web.archive.org/web/20070204081558/http://www.americantheatrewing.org/seminars/detail/leading_ladies_12_06 Leading Ladies] Working in the Theatre video from American Theatre Wing, December 2006
* [https://web.archive.org/web/20070312103049/http://www.americantheatrewing.org/seminars/detail/performance_04_98 Working in the Theatre: Performance] video seminar at American Theatre Wing, April 1998
* [https://web.archive.org/web/20070929104944/http://www.americantheatrewing.org/seminars/detail/performance_04_88 Working in the Theatre: Performance] video seminar at American Theatre Wing, April 1988
}}
Category:1943 births
Category:Living people
Category:20th-century American actresses
Category:21st-century American actresses
Category:American environmentalists
Category:Actresses from Philadelphia
Category:American film actresses
Category:American people of Barbadian descent
Category:American people of Pennsylvania Dutch descent
Category:American stage actresses
Category:American television actresses
Category:American voice actresses
Category:Bard College alumni
Category:Outstanding Performance by a Supporting Actress in a Drama Series Primetime Emmy Award winners
Category:Tony Award winners
Category:George School alumni
Category:Paltrow family | https://en.wikipedia.org/wiki/Blythe_Danner | 2025-04-05T18:26:41.567546 |
4111 | Bioleaching | Bioleaching is the extraction or liberation of metals from their ores through the use of living organisms. Bioleaching is one of several applications within biohydrometallurgy and several methods are used to treat ores or concentrates containing copper, zinc, lead, arsenic, antimony, nickel, molybdenum, gold, silver, and cobalt.
Bioleaching falls into two broad categories. The first, is the use of microorganisms to oxidize refractory minerals to release valuable metals such and gold and silver. Most commonly the minerals that are the target of oxidization are pyrite and arsenopyrite.
The second category is leaching of sulphide minerals to release the associated metal, for example, leaching of pentlandite to release nickel, or the leaching of chalcocite, covellite or chalcopyrite to release copper.
Process
Bioleaching can involve numerous ferrous iron and sulfur oxidizing bacteria, including Acidithiobacillus ferrooxidans (formerly known as Thiobacillus ferrooxidans) and Acidithiobacillus thiooxidans (formerly known as Thiobacillus thiooxidans). As a general principle, in one proposed method of bacterial leaching known as Indirect Leaching, Fe<sup>3+</sup> ions are used to oxidize the ore. This step is entirely independent of microbes. The role of the bacteria is further oxidation of the ore, but also the regeneration of the chemical oxidant Fe<sup>3+</sup> from Fe<sup>2+</sup>. For example, bacteria catalyse the breakdown of the mineral pyrite (FeS<sub>2</sub>) by oxidising the sulfur and metal (in this case ferrous iron, (Fe<sup>2+</sup>)) using oxygen. This yields soluble products that can be further purified and refined to yield the desired metal.
Pyrite leaching (FeS<sub>2</sub>):
In the first step, disulfide is spontaneously oxidized to thiosulfate by ferric ion (Fe<sup>3+</sup>), which in turn is reduced to give ferrous ion (Fe<sup>2+</sup>):
:(1) <math>\mathrm{FeS_2 + 6 \ Fe^{\,3+} + 3 \ H_2O \longrightarrow 7 \ Fe^{\,2+} + S_2O_3^{\,2-} + 6 \ H^+}</math> spontaneous
The ferrous ion is then oxidized by bacteria using oxygen:
:(2) <math>\mathrm{4 \ Fe^{\,2+} + \ O_2 + 4 \ H^+ \longrightarrow 4 \ Fe^{\,3+} + 2 \ H_2O}</math> (iron oxidizers)
Thiosulfate is also oxidized by bacteria to give sulfate:
:(3) <math>\mathrm{S_2O_3^{\,2-} + 2 \ O_2 + H_2O \longrightarrow 2 \ SO_4^{\,2-} + 2 \ H^+}</math> (sulfur oxidizers)
The ferric ion produced in reaction (2) oxidized more sulfide as in reaction (1), closing the cycle and given the net reaction:
:(4) <math>\mathrm{2 \ FeS_2 + 7 \ O_2 + 2 \ H_2O \longrightarrow 2 \ Fe^{\,2+} + 4 \ SO_4^{\,2-} + 4 \ H^+}</math>
The net products of the reaction are soluble ferrous sulfate and sulfuric acid.
The microbial oxidation process occurs at the cell membrane of the bacteria. The electrons pass into the cells and are used in biochemical processes to produce energy for the bacteria while reducing oxygen to water. The critical reaction is the oxidation of sulfide by ferric iron. The main role of the bacterial step is the regeneration of this reactant.
The process for copper is very similar, but the efficiency and kinetics depend on the copper mineralogy. The most efficient minerals are supergene minerals such as chalcocite, Cu<sub>2</sub>S and covellite, CuS. The main copper mineral chalcopyrite (CuFeS<sub>2</sub>) is not leached very efficiently, which is why the dominant copper-producing technology remains flotation, followed by smelting and refining. The leaching of CuFeS<sub>2</sub> follows the two stages of being dissolved and then further oxidised, with Cu<sup>2+</sup> ions being left in solution.
Chalcopyrite leaching:
:(1) <math>\mathrm{CuFeS_2 + 4 \ Fe^{\,3+} \longrightarrow Cu^{\,2+} + 5 \ Fe^{\,2+} + 2 \ S_0}</math> spontaneous
:(2) <math>\mathrm{4 \ Fe^{\,2+} + O_2 + 4 \ H^+ \longrightarrow 4 \ Fe^{\,3+} + 2 \ H_2O}</math> (iron oxidizers)
:(3) <math>\mathrm{2 \ S^0 + 3 \ O_2 + 2 \ H_2O \longrightarrow 2 \ SO_4^{\,2-} + 4 \ H^+}</math> (sulfur oxidizers)
net reaction:
:(4) <math>\mathrm{CuFeS_2 + 4 \ O_2 \longrightarrow Cu^{\,2+} + Fe^{\,2+} + 2 \ SO_4^{\,2-}}</math>
In general, sulfides are first oxidized to elemental sulfur, whereas disulfides are oxidized to give thiosulfate, and the processes above can be applied to other sulfidic ores. Bioleaching of non-sulfidic ores such as pitchblende also uses ferric iron as an oxidant (e.g., UO<sub>2</sub> + 2 Fe<sup>3+</sup> > UO<sub>2</sub><sup>2+</sup> + 2 Fe<sup>2+</sup>). In this case, the sole purpose of the bacterial step is the regeneration of Fe<sup>3+</sup>. Sulfidic iron ores can be added to speed up the process and provide a source of iron. Bioleaching of non-sulfidic ores by layering of waste sulfides and elemental sulfur, colonized by Acidithiobacillus spp., has been accomplished, which provides a strategy for accelerated leaching of materials that do not contain sulfide minerals.
Further processing
The dissolved copper (Cu<sup>2+</sup>) ions are removed from the solution by ligand exchange solvent extraction, which leaves other ions in the solution. The copper is removed by bonding to a ligand, which is a large molecule consisting of a number of smaller groups, each possessing a lone electron pair. The ligand-copper complex is extracted from the solution using an organic solvent such as kerosene:
:Cu<sup>2+</sup><sub>(aq)</sub> + 2LH(organic) → CuL<sub>2</sub>(organic) + 2H<sup>+</sup><sub>(aq)</sub>
The ligand donates electrons to the copper, producing a complex - a central metal atom (copper) bonded to the ligand. Because this complex has no charge, it is no longer attracted to polar water molecules and dissolves in the kerosene, which is then easily separated from the solution. Because the initial reaction is reversible, it is determined by pH. Adding concentrated acid reverses the equation, and the copper ions go back into an aqueous solution.
Then the copper is passed through an electro-winning process to increase its purity: An electric current is passed through the resulting solution of copper ions. Because copper ions have a 2+ charge, they are attracted to the negative cathodes and collect there.
The copper can also be concentrated and separated by displacing the copper with Fe from scrap iron:
:Cu<sup>2+</sup><sub>(aq)</sub> + Fe<sub>(s)</sub> → Cu<sub>(s)</sub> + Fe<sup>2+</sup><sub>(aq)</sub>
The electrons lost by the iron are taken up by the copper. Copper is the oxidising agent (it accepts electrons), and iron is the reducing agent (it loses electrons).
Traces of precious metals such as gold may be left in the original solution. Treating the mixture with sodium cyanide in the presence of free oxygen dissolves the gold. The gold is removed from the solution by adsorbing (taking it up on the surface) to charcoal.With fungiSeveral species of fungi can be used for bioleaching. Fungi can be grown on many different substrates, such as electronic scrap, catalytic converters, and fly ash from municipal waste incineration. Experiments have shown that two fungal strains (Aspergillus niger, Penicillium simplicissimum) were able to mobilize Cu and Sn by 65%, and Al, Ni, Pb, and Zn by more than 95%. Aspergillus niger can produce some organic acids such as citric acid. This form of leaching does not rely on microbial oxidation of metal but rather uses microbial metabolism as source of acids that directly dissolve the metal. Feasibility Economic feasibilityBioleaching is in general simpler and, therefore, cheaper to operate and maintain than traditional processes, since fewer specialists are needed to operate complex chemical plants. And low concentrations are not a problem for bacteria because they simply ignore the waste that surrounds the metals, attaining extraction yields of over 90% in some cases. These microorganisms actually gain energy by breaking down minerals into their constituent elements. The company simply collects the ions out of the solution after the bacteria have finished.
Bioleaching can be used to extract metals from low concentration ores such as gold that are too poor for other technologies. It can be used to partially replace the extensive crushing and grinding that translates to prohibitive cost and energy consumption in a conventional process. Because the lower cost of bacterial leaching outweighs the time it takes to extract the metal.
High concentration ores, such as copper, are more economical to smelt rather bioleach due to the slow speed of the bacterial leaching process compared to smelting. The slow speed of bioleaching introduces a significant delay in cash flow for new mines. Nonetheless, at the largest copper mine of the world, Escondida in Chile the process seems to be favorable.
Economically it is also very expensive and many companies once started can not keep up with the demand and end up in debt.In space
In 2020 scientists showed, with an experiment with different gravity environments on the ISS, that microorganisms could be employed to mine useful elements from basaltic rocks via bioleaching in space. Environmental impact The process is more environmentally friendly than traditional extraction methods. For the company this can translate into profit, since the necessary limiting of sulfur dioxide emissions during smelting is expensive. Less landscape damage occurs, since the bacteria involved grow naturally, and the mine and surrounding area can be left relatively untouched. As the bacteria breed in the conditions of the mine, they are easily cultivated and recycled.
Toxic chemicals are sometimes produced in the process. Sulfuric acid and H<sup>+</sup> ions that have been formed can leak into the ground and surface water turning it acidic, causing environmental damage. Heavy ions such as iron, zinc, and arsenic leak during acid mine drainage. When the pH of this solution rises, as a result of dilution by fresh water, these ions precipitate, forming "Yellow Boy" pollution. For these reasons, a setup of bioleaching must be carefully planned, since the process can lead to a biosafety failure. Unlike other methods, once started, bioheap leaching cannot be quickly stopped, because leaching would still continue with rainwater and natural bacteria. Projects like Finnish Talvivaara proved to be environmentally and economically disastrous.
See also
* Phytomining
References
Further reading
* T. A. Fowler and F. K. Crundwell – "Leaching of zinc sulfide with Thiobacillus ferrooxidans"
* Brandl H. (2001) "Microbial leaching of metals". In: Rehm H. J. (ed.) Biotechnology, Vol. 10. Wiley-VCH, Weinheim, pp. 191–224
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*
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Category:Biotechnology
Category:Economic geology
Category:Metallurgical processes
Category:Applied microbiology | https://en.wikipedia.org/wiki/Bioleaching | 2025-04-05T18:26:41.579696 |
4113 | Bouldering | thumb|Bouldering in Idyllwild, California
Bouldering is a form of rock climbing that is performed on small rock formations or artificial rock walls without the use of ropes or harnesses. While bouldering can be done without any equipment, most climbers use climbing shoes to help secure footholds, chalk to keep their hands dry and to provide a firmer grip, and bouldering mats to prevent injuries from falls. Unlike free solo climbing, which is also performed without ropes, bouldering problems (the sequence of moves that a climber performs to complete the climb) are usually less than tall. Traverses, which are a form of boulder problem, require the climber to climb horizontally from one end to another. Artificial climbing walls allow boulderers to climb indoors in areas without natural boulders. In addition, bouldering competitions take place in both indoor and outdoor settings.
The sport was originally a method of training for roped climbs and mountaineering, so climbers could practice specific moves at a safe distance from the ground. Additionally, the sport served to build stamina and increase finger strength. Throughout the 20th century, bouldering evolved into a separate discipline. Individual problems are assigned ratings based on difficulty. Although there have been various rating systems used throughout the history of bouldering, modern problems usually use either the V-scale or the Fontainebleau scale.
Outdoor bouldering
thumb|Bouldering in Hueco Tanks: Baby Martini (V6)thumb|right|The largest outdoor bouldering gym in North America, The Cliffs at DUMBO, is located in Brooklyn Bridge Park.
The characteristics of boulder problems depend largely on the type of rock being climbed. For example, granite often features long cracks and slabs while sandstone rocks are known for their steep overhangs and frequent horizontal breaks. Limestone and volcanic rock are also used for bouldering.
There are many prominent bouldering areas throughout the United States, including Hueco Tanks in Texas, Mount Blue Sky in Colorado, The Appalachian Mountains in The Eastern United States, and The Buttermilks in Bishop, California. Squamish, British Columbia is one of the most popular bouldering areas in Canada. Europe is also home to a number of bouldering sites, such as Fontainebleau in France, Meschia in Italy, Albarracín in Spain, and various mountains throughout Switzerland.
Indoor bouldering
alt=An indoor bouldering gym|thumb|An indoor bouldering gym
Artificial climbing walls are used to simulate boulder problems in an indoor environment, usually at climbing gyms. These walls are constructed with wooden panels, polymer cement panels, concrete shells, or precast molds of actual rock walls. Holds, usually made of plastic, are then bolted onto the wall to create problems. Some problems use steep overhanging surfaces which force the climber to support much of their weight using their upper body strength.
Climbing gyms often feature multiple problems within the same section of wall. Historically, the most common method route-setters used to designate the intended problem was by placing colored tape next to each hold. For example, red tape would indicate one bouldering problem while green tape would be used to set a different problem in the same area. Indoor bouldering requires very little in terms of equipment: at minimum, climbing shoes; at maximum, a chalk bag, chalk, a brush, and climbing shoes.
Grading
right|thumb|150px|A climber completing an indoor V3 problem
Bouldering problems are assigned numerical difficulty ratings by route-setters and climbers. The two most widely used rating systems are the V-scale and the Fontainebleau system.
The V-scale, which originated in the United States, is an open-ended rating system with higher numbers indicating a higher degree of difficulty. The V1 rating indicates that a problem can be completed by a novice climber in good physical condition after several attempts. The scale begins at V0, and as of 2024, the highest V rating that has been assigned to a bouldering problem is V17. Some climbing gyms also use a VB grade to indicate beginner problems.
The Fontainebleau scale follows a similar system, with each numerical grade divided into three ratings with the letters a, b, and c. For example, Fontainebleau 7A roughly corresponds with V6, while Fontainebleau 7C+ is equivalent to V10. In both systems, grades are further differentiated by appending "+" to indicate a small increase in difficulty. Despite this level of specificity, ratings of individual problems are often controversial, as ability level is not the only factor that affects how difficult a problem may be for a particular climber. Height, arm length, flexibility, and other body characteristics can also affect difficulty.
Highball bouldering
Highball bouldering is "a sub-discipline of bouldering in which climbers seek out tall, imposing lines to climb ropeless above crash pads." It may have begun in 1961 when John Gill, without top-rope rehearsal or bouldering pads (which did not exist), bouldered a steep face on a granite spire called The Thimble. In 2002 Jason Kehl completed the first highball at double-digit V-difficulty, called Evilution, a boulder in the Buttermilks of California, earning the grade of V12.
thumb|right|200px|Climber on the Thimble in Custer State Park in South Dakota during the 1960s
Important milestone ascents in this style include:
Ambrosia, V11, a boulder in Bishop, California, climbed by Kevin Jorgeson in 2015.
Too Big to Flail, V10, another line in Bishop, California, climbed by Alex Honnold in 2016.
The Process, V16, a boulder in Bishop, California, first climbed by Daniel Woods in 2015.
Competition bouldering
right|thumb|150px|A competitor at a Boulder World Cup in 2012
The International Federation of Sport Climbing (IFSC) employs an indoor format (although competitions can also take place in an outdoor setting) that breaks the competition into three rounds: qualifications, semi-finals, and finals. The rounds feature different sets of four to six boulder problems, and each competitor has a fixed amount of time to attempt each problem. At the end of each round, competitors are ranked by the number of completed problems with ties settled by the total number of attempts taken to solve the problems.
Some competitions only permit climbers a fixed number of attempts at each problem with a timed rest period in between. In an open-format competition, all climbers compete simultaneously, and are given a fixed amount of time to complete as many problems as possible. More points are awarded for more difficult problems, while points are deducted for multiple attempts on the same problem.
In 2012, the IFSC submitted a proposal to the International Olympic Committee (IOC) to include lead climbing in the 2020 Summer Olympics. The proposal was later revised to an "overall" competition, which would feature bouldering, lead climbing, and speed climbing. In 2016, the International Olympic Committee (IOC) officially approved climbing, along with four other sports, as an Olympic sport, based on their "impact on gender equality, the youth appeal of the sports and the legacy value of adding them to the Tokyo Games".
History
Modern bouldering
Modern recreational climbing began in the late 19th century in England, southeastern Germany, northern Italy, and France. Bouldering on the rocks of Fontainbleau outside of Paris began in the late 1800s, with the first guidebook written by Maurice Martin in 1945. Bouldering as training or a recreational past-time began also in the late 1800s in England and perhaps elsewhere. Oscar Eckenstein was an early proponent.
In the late 1950s, John Gill, who is frequently called "the father of modern bouldering", combined gymnastics with rock climbing, and felt that the best place to do that was on boulders or small outcrops. He developed a rating system that was closed-ended: B1 problems were as difficult as the most challenging roped routes of the time, B2 problems were more difficult, and B3 problems had been completed once. He also introduced chalk as a method of keeping the climber's hands dry, promoted a dynamic climbing style, and emphasized the importance of strength training to complement skill. His 1969 article in the Journal of the American Alpine Club entitled "The Art of Bouldering" defines modern bouldering. As Gill improved in ability and influence, his ideas became the norm.
In the 1980s, two important training tools emerged. One important training tool was bouldering mats, also referred to as "crash pads", which protected against injuries from falling and enabled boulderers to climb in areas that would have been too dangerous otherwise. The second important tool was indoor climbing walls, which helped spread the sport to areas without outdoor climbing and allowed serious climbers to train year-round. As the sport grew in popularity, new bouldering areas were developed throughout Europe and the United States, and more athletes began participating in bouldering competitions. The visibility of the sport greatly increased in the early 2000s, as YouTube videos and climbing blogs helped boulderers around the world to quickly learn techniques, find hard problems, and announce newly completed projects.
File:Gill_on_The_Scab_,_1963_,_The_Needles_of_the_Balck_Hills,_SD.jpg|John Gill on the Scab in the Needles of the Black Hills, 1963
File:Christian Core on Gioia.jpg|Christian Core on Gioia (Varazze, ITA), first boulder in history, 2008
File:Midnight Lightning yosemite.jpg|Michael Rael Armas on Midnight Lightning, Camp 4 (Yosemite National Park, USA), one of the world's most famous bouldering problems
Notable ascents
Notable boulder climbs are chronicled by the climbing media to track progress in boulder climbing standards and levels of technical difficulty; in contrast, the hardest traditional climbing routes tend to be of lower technical difficulty due to the additional burden of having to place protection during the course of the climb, and due to the lack of any possibility of using natural protection on the most extreme climbs.
As of November 2022, the world's hardest bouldering routes are Burden of Dreams by Nalle Hukkataival and Return of the Sleepwalker by Daniel Woods, both at proposed grades of . There are a number of routes with a confirmed climbing grade of , the first of which was Gioia by Christian Core in 2008 (and confirmed by Adam Ondra in 2011). As of December 2021, female climbers Josune Bereziartu, Ashima Shiraishi, and Kaddi Lehmann have repeated boulder problems at the boulder grade. On 28 July 2023, Katie Lamb became the first female climber to climb an -rated boulder by repeating Box Therapy at Rocky Mountain National Park. However, after Brooke Raboutou repeated the climb In October 2023, the boulder was ultimately downgraded to .
Equipment
Unlike other climbing sports, bouldering can be performed safely and effectively with very little equipment, an aspect which makes the discipline highly appealing, but opinions differ. While bouldering pioneer John Sherman asserted that "The only gear really needed to go bouldering is boulders," others suggest the use of climbing shoes and a chalkbag – a small pouch where ground-up chalk is kept – as the bare minimum, and more experienced boulderers typically bring multiple pairs of climbing shoes, chalk, brushes, crash pads, and a skincare kit.
Climbing shoes have the most direct impact on performance. Besides protecting the climber's feet from rough surfaces, climbing shoes are designed to help the climber secure footholds. Climbing shoes typically fit much tighter than other athletic footwear and often curl the toes downwards to enable precise footwork. They are manufactured in a variety of different styles to perform in different situations. Stiffer shoes excel at securing small edges, whereas softer shoes provide greater sensitivity. The front of the shoe, called the "toe box", can be asymmetric, which performs well on overhanging rocks, or symmetric, which is better suited for vertical problems and slabs.
To absorb sweat, most boulderers use gymnastics chalk on their hands, stored in a chalk bag, which can be tied around the waist (also called sport climbing chalk bags), allowing the climber to reapply chalk during the climb. There are also versions of floor chalk bags (also called bouldering chalk bags), which are usually bigger than sport climbing chalk bags and are meant to be kept on the floor while climbing; this is because boulders do not usually have so many movements as to require chalking up more than once. Different sizes of brushes are used to remove excess chalk and debris from boulders in between climbs; they are often attached to the end of a long straight object in order to reach higher holds. Crash pads, also referred to as bouldering mats, are foam cushions placed on the ground to protect climbers from injury after falling.
Boulder problems are generally shorter than from ground to top. This makes the sport significantly safer than free solo climbing, which is also performed without ropes, but with no upper limit on the height of the climb. However, minor injuries are common in bouldering, particularly sprained ankles and wrists. To prevent injuries, boulderers position crash pads near the boulder to provide a softer landing, as well as one or more spotters to help redirect the climber towards the pads. Upon landing, boulderers employ falling techniques similar to those used in gymnastics: spreading the impact across the entire body to avoid bone fractures and positioning limbs to allow joints to move freely throughout the impact.
File:Quechua climbing shoes.jpg|A modern climbing shoe
File:Joshue Tree National Park - Manx Boulder - 6.jpg|Using spotters for safety
File:GIOVANNI BOULDERING.jpg|Using crash pads
Techniques
Although every type of rock climbing requires a high level of strength and technique, bouldering is the most dynamic form of the sport, requiring the highest level of power and placing considerable strain on the body. Training routines that strengthen fingers and forearms are useful in preventing injuries such as tendonitis and ruptured ligaments. However, as with other forms of climbing, bouldering technique begins with proper footwork. Leg muscles are significantly stronger than arm muscles; thus, proficient boulderers use their arms to maintain balance and body positioning as much as possible, relying on their legs to push them up the rock. Boulderers also keep their arms straight with their shoulders engaged whenever feasible, allowing their bones to support their body weight rather than their muscles.
Bouldering movements are described as either "static" or "dynamic". Static movements are those that are performed slowly, with the climber's position controlled by maintaining contact on the boulder with the other three limbs. Dynamic movements use the climber's momentum to reach holds that would be difficult or impossible to secure statically, with an increased risk of falling if the movement is not performed accurately.
Environmental impact
Bouldering can damage vegetation that grows on rocks, such as moss and lichens. This can occur as a result of the climber intentionally cleaning the boulder, or unintentionally from repeated use of handholds and footholds. Vegetation on the ground surrounding the boulder can also be damaged from overuse, particularly by climbers laying down crash pads. Soil erosion can occur when boulderers trample vegetation while hiking off of established trails, or when they unearth small rocks near the boulder in an effort to make the landing zone safer in case of a fall. Other environmental concerns include littering, improperly disposed feces, and graffiti. These issues have caused some land managers to prohibit bouldering, as was the case in Tea Garden, a popular bouldering area in Rocklands, South Africa.
See also
Competition climbing
Free solo climbing
Lead climbing
References
Works cited
External links
Category:Articles containing video clips
Category:Types of climbing
Category:Sports originating in France
Category:Summer Olympic disciplines | https://en.wikipedia.org/wiki/Bouldering | 2025-04-05T18:26:41.612606 |
4115 | Boiling point | thumb|300px|Water boiling at 99.3 °C (210.8 °F) at 215 m (705 ft) elevation The boiling point of a substance is the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid and the liquid changes into a vapor.
The boiling point of a liquid varies depending upon the surrounding environmental pressure. A liquid in a partial vacuum, i.e., under a lower pressure, has a lower boiling point than when that liquid is at atmospheric pressure. Because of this, water boils at 100°C (or with scientific precision: ) under standard pressure at sea level, but at at altitude. For a given pressure, different liquids will boil at different temperatures.
The normal boiling point (also called the atmospheric boiling point or the atmospheric pressure boiling point) of a liquid is the special case in which the vapor pressure of the liquid equals the defined atmospheric pressure at sea level, one atmosphere. At that temperature, the vapor pressure of the liquid becomes sufficient to overcome atmospheric pressure and allow bubbles of vapor to form inside the bulk of the liquid. The standard boiling point has been defined by IUPAC since 1982 as the temperature at which boiling occurs under a pressure of one bar.
The heat of vaporization is the energy required to transform a given quantity (a mol, kg, pound, etc.) of a substance from a liquid into a gas at a given pressure (often atmospheric pressure).
Liquids may change to a vapor at temperatures below their boiling points through the process of evaporation. Evaporation is a surface phenomenon in which molecules located near the liquid's edge, not contained by enough liquid pressure on that side, escape into the surroundings as vapor. On the other hand, boiling is a process in which molecules anywhere in the liquid escape, resulting in the formation of vapor bubbles within the liquid.
Saturation temperature and pressure
thumb|right|280px|Demonstration of the lower boiling point of water at lower pressure, achieved by using a vacuum pump.
A saturated liquid contains as much thermal energy as it can without boiling (or conversely a saturated vapor contains as little thermal energy as it can without condensing).
Saturation temperature means boiling point. The saturation temperature is the temperature for a corresponding saturation pressure at which a liquid boils into its vapor phase. The liquid can be said to be saturated with thermal energy. Any addition of thermal energy results in a phase transition.
If the pressure in a system remains constant (isobaric), a vapor at saturation temperature will begin to condense into its liquid phase as thermal energy (heat) is removed. Similarly, a liquid at saturation temperature and pressure will boil into its vapor phase as additional thermal energy is applied.
The boiling point corresponds to the temperature at which the vapor pressure of the liquid equals the surrounding environmental pressure. Thus, the boiling point is dependent on the pressure. Boiling points may be published with respect to the NIST, USA standard pressure of 101.325 kPa (1 atm), or the IUPAC standard pressure of 100.000 kPa (1 bar). At higher elevations, where the atmospheric pressure is much lower, the boiling point is also lower. The boiling point increases with increased pressure up to the critical point, where the gas and liquid properties become identical. The boiling point cannot be increased beyond the critical point. Likewise, the boiling point decreases with decreasing pressure until the triple point is reached. The boiling point cannot be reduced below the triple point.
If the heat of vaporization and the vapor pressure of a liquid at a certain temperature are known, the boiling point can be calculated by using the Clausius–Clapeyron equation, thus:
T_\text{B} = \left(\frac{1}{T_0} - \frac{R\,\ln \frac{P}{P_0}}{\Delta H_\text{vap}}\right)^{-1}
where:
T_\text{B} is the boiling point at the pressure of interest,
R is the ideal gas constant,
P is the vapor pressure of the liquid,
P_0 is some pressure where the corresponding T_0 is known (usually data available at 1 atm or 100 kPa (1 bar)),
\Delta H_\text{vap} is the heat of vaporization of the liquid,
T_0 is the boiling temperature,
\ln is the natural logarithm.
Saturation pressure is the pressure for a corresponding saturation temperature at which a liquid boils into its vapor phase. Saturation pressure and saturation temperature have a direct relationship: as saturation pressure is increased, so is saturation temperature.
If the temperature in a system remains constant (an isothermal system), vapor at saturation pressure and temperature will begin to condense into its liquid phase as the system pressure is increased. Similarly, a liquid at saturation pressure and temperature will tend to flash into its vapor phase as system pressure is decreased.
There are two conventions regarding the standard boiling point of water: The normal boiling point is commonly given as (actually following the thermodynamic definition of the Celsius scale based on the kelvin) at a pressure of 1 atm (101.325 kPa). The IUPAC-recommended standard boiling point of water at a standard pressure of 100 kPa (1 bar) is . For comparison, on top of Mount Everest, at elevation, the pressure is about and the boiling point of water is . The Celsius temperature scale was defined until 1954 by two points: 0 °C being defined by the water freezing point and 100 °C being defined by the water boiling point at standard atmospheric pressure.
Relation between the normal boiling point and the vapor pressure of liquids
thumb|right|A log-lin vapor pressure chart for various liquids
The higher the vapor pressure of a liquid at a given temperature, the lower the normal boiling point (i.e., the boiling point at atmospheric pressure) of the liquid.
The vapor pressure chart to the right has graphs of the vapor pressures versus temperatures for a variety of liquids. As can be seen in the chart, the liquids with the highest vapor pressures have the lowest normal boiling points.
For example, at any given temperature, methyl chloride has the highest vapor pressure of any of the liquids in the chart. It also has the lowest normal boiling point (−24.2 °C), which is where the vapor pressure curve of methyl chloride (the blue line) intersects the horizontal pressure line of one atmosphere (atm) of absolute vapor pressure.
The critical point of a liquid is the highest temperature (and pressure) it will actually boil at.
See also Vapour pressure of water.
Boiling point of chemical elements
The element with the lowest boiling point is helium. Both the boiling points of rhenium and tungsten exceed 5000 K at standard pressure; because it is difficult to measure extreme temperatures precisely without bias, both have been cited in the literature as having the higher boiling point.
Boiling point as a reference property of a pure compound
As can be seen from the above plot of the logarithm of the vapor pressure vs. the temperature for any given pure chemical compound, its normal boiling point can serve as an indication of that compound's overall volatility. A given pure compound has only one normal boiling point, if any, and a compound's normal boiling point and melting point can serve as characteristic physical properties for that compound, listed in reference books. The higher a compound's normal boiling point, the less volatile that compound is overall, and conversely, the lower a compound's normal boiling point, the more volatile that compound is overall. Some compounds decompose at higher temperatures before reaching their normal boiling point, or sometimes even their melting point. For a stable compound, the boiling point ranges from its triple point to its critical point, depending on the external pressure. Beyond its triple point, a compound's normal boiling point, if any, is higher than its melting point. Beyond the critical point, a compound's liquid and vapor phases merge into one phase, which may be called a superheated gas. At any given temperature, if a compound's normal boiling point is lower, then that compound will generally exist as a gas at atmospheric external pressure. If the compound's normal boiling point is higher, then that compound can exist as a liquid or solid at that given temperature at atmospheric external pressure, and will so exist in equilibrium with its vapor (if volatile) if its vapors are contained. If a compound's vapors are not contained, then some volatile compounds can eventually evaporate away in spite of their higher boiling points.
thumb|350px|Boiling points of alkanes, alkenes, ethers, halogenoalkanes, aldehydes, ketones, alcohols and carboxylic acids as a function of molar mass
In general, compounds with ionic bonds have high normal boiling points, if they do not decompose before reaching such high temperatures. Many metals have high boiling points, but not all. Very generally—with other factors being equal—in compounds with covalently bonded molecules, as the size of the molecule (or molecular mass) increases, the normal boiling point increases. When the molecular size becomes that of a macromolecule, polymer, or otherwise very large, the compound often decomposes at high temperature before the boiling point is reached. Another factor that affects the normal boiling point of a compound is the polarity of its molecules. As the polarity of a compound's molecules increases, its normal boiling point increases, other factors being equal. Closely related is the ability of a molecule to form hydrogen bonds (in the liquid state), which makes it harder for molecules to leave the liquid state and thus increases the normal boiling point of the compound. Simple carboxylic acids dimerize by forming hydrogen bonds between molecules. A minor factor affecting boiling points is the shape of a molecule. Making the shape of a molecule more compact tends to lower the normal boiling point slightly compared to an equivalent molecule with more surface area.
+ Comparison of butane () isomer boiling points Common name n-butane isobutane IUPAC name butane 2-methylpropane Molecularform 140px 120px Boilingpoint (°C) −0.5 −11.7
+ Comparison of pentane isomer boiling points Common name n-pentane isopentane neopentane IUPAC name pentane 2-methylbutane 2,2-dimethylpropane Molecularform 160px 140px 120px Boilingpoint (°C) 36.0 27.7 9.5
thumb|right|350px|Binary boiling point diagram of two hypothetical only weakly interacting components without an azeotrope
Most volatile compounds (anywhere near ambient temperatures) go through an intermediate liquid phase while warming up from a solid phase to eventually transform to a vapor phase. By comparison to boiling, a sublimation is a physical transformation in which a solid turns directly into vapor, which happens in a few select cases such as with carbon dioxide at atmospheric pressure. For such compounds, a sublimation point is a temperature at which a solid turning directly into vapor has a vapor pressure equal to the external pressure.
Impurities and mixtures
In the preceding section, boiling points of pure compounds were covered. Vapor pressures and boiling points of substances can be affected by the presence of dissolved impurities (solutes) or other miscible compounds, the degree of effect depending on the concentration of the impurities or other compounds. The presence of non-volatile impurities such as salts or compounds of a volatility far lower than the main component compound decreases its mole fraction and the solution's volatility, and thus raises the normal boiling point in proportion to the concentration of the solutes. This effect is called boiling point elevation. As a common example, salt water boils at a higher temperature than pure water.
In other mixtures of miscible compounds (components), there may be two or more components of varying volatility, each having its own pure component boiling point at any given pressure. The presence of other volatile components in a mixture affects the vapor pressures and thus boiling points and dew points of all the components in the mixture. The dew point is a temperature at which a vapor condenses into a liquid. Furthermore, at any given temperature, the composition of the vapor is different from the composition of the liquid in most such cases. In order to illustrate these effects between the volatile components in a mixture, a boiling point diagram is commonly used. Distillation is a process of boiling and [usually] condensation which takes advantage of these differences in composition between liquid and vapor phases.
Boiling point of water with elevation
Following is a table of the change in the boiling point of water with elevation, at intervals of 500 meters over the range of human habitation [the Dead Sea at to La Rinconada, Peru at ], then of 1,000 meters over the additional range of uninhabited surface elevation [up to Mount Everest at ], along with a similar range in Imperial.
+ Boiling point of water Elevation(m) Boiling point(°C)Elevation(ft)Boiling point(°F) −500101.6 −1,500214.70100.00212.050098.41,500209.31,00096.73,000206.61,50095.14,500203.92,00093.46,000201.12,50091.77,500198.33,00090.09,000195.53,50088.210,500192.64,00086.412,000189.84,50084.613,500186.85,00082.815,000183.96,00079.116,500180.97,00075.320,000173.88,00071.423,000167.59,00067.426,000161.129,000154.6
Element table
See also
Boiling points of the elements (data page)
Boiling-point elevation
Critical point (thermodynamics)
Ebulliometer, a device to accurately measure the boiling point of liquids
Hagedorn temperature
Joback method (Estimation of normal boiling points from molecular structure)
List of gases including boiling points
Melting point
Subcooling
Superheating
Trouton's constant relating latent heat to boiling point
Triple point
References
External links
Category:Gases
Category:Meteorological quantities
Category:Temperature
Category:Threshold temperatures | https://en.wikipedia.org/wiki/Boiling_point | 2025-04-05T18:26:41.631871 |
4116 | Big Bang | The Big Bang Theory||Big Bang (disambiguation)|and|Big Bang Theory (disambiguation)}}
, where space, including hypothetical non-observable portions of the universe, is represented at each time by the circular sections. On the left, the dramatic expansion occurs in the inflationary epoch; and at the center, the expansion accelerates (artist's concept; neither time nor size are to scale).]]
The Big Bang is a physical theory that describes how the universe expanded from an initial state of high density and temperature. Various cosmological models based on the Big Bang concept explain a broad range of phenomena, including the abundance of light elements, the cosmic microwave background (CMB) radiation, and large-scale structure. The uniformity of the universe, known as the horizon and flatness problems, is explained through cosmic inflation: a phase of accelerated expansion during the earliest stages. A wide range of empirical evidence strongly favors the Big Bang event, which is now essentially universally accepted. Detailed measurements of the expansion rate of the universe place the Big Bang singularity at an estimated billion years ago, which is considered the age of the universe.
Extrapolating this cosmic expansion backward in time using the known laws of physics, the models describe an extraordinarily hot and dense primordial universe. Physics lacks a widely accepted theory that can model the earliest conditions of the Big Bang. As the universe expanded, it cooled sufficiently to allow the formation of subatomic particles, and later atoms. These primordial elements—mostly hydrogen, with some helium and lithium—then coalesced under the force of gravity aided by dark matter, forming early stars and galaxies. Measurements of the redshifts of supernovae indicate that the expansion of the universe is accelerating, an observation attributed to a concept called dark energy.
The concept of an expanding universe was scientifically originated by the physicist Alexander Friedmann in 1922 with the mathematical derivation of the Friedmann equations. The earliest empirical observation of an expanding universe is known as Hubble's law, published in work by physicist Edwin Hubble in 1929, which discerned that galaxies are moving away from Earth at a rate that accelerates proportionally with distance. Independent of Friedmann's work, and independent of Hubble's observations, physicist Georges Lemaître proposed that the universe emerged from a "primeval atom" in 1931, introducing the modern notion of the Big Bang. In 1964, the CMB was discovered, which convinced many cosmologists that the competing steady-state model of cosmic evolution was falsified, since the Big Bang models predict a uniform background radiation caused by high temperatures and densities in the distant past.
There remain aspects of the observed universe that are not yet adequately explained by the Big Bang models. These include the unequal abundances of matter and antimatter known as baryon asymmetry, the detailed nature of dark matter surrounding galaxies, and the origin of dark energy.
Features of the models
Assumptions
Big Bang cosmology models depend on three major assumptions: the universality of physical laws, the cosmological principle, and that the matter content can be modeled as a perfect fluid. The universality of physical laws is one of the underlying principles of the theory of relativity. The cosmological principle states that on large scales the universe is homogeneous and isotropic—appearing the same in all directions regardless of location. A perfect fluid has no viscosity; the pressure of a perfect fluid is proportional to its density.
These ideas were initially taken as postulates, but later efforts were made to test each of them. For example, the first assumption has been tested by observations showing that the largest possible deviation of the fine-structure constant over much of the age of the universe is of order 10<sup>−5</sup>. The key physical law behind these models, general relativity has passed stringent tests on the scale of the Solar System and binary stars.
The cosmological principle has been confirmed to a level of 10<sup>−5</sup> via observations of the temperature of the CMB. At the scale of the CMB horizon, the universe has been measured to be homogeneous with an upper bound on the order of 10% inhomogeneity, as of 1995.
Expansion prediction
The cosmological principle dramatically simplifies the equations of general relativity, giving the Friedmann–Lemaître–Robertson–Walker metric to describe the geometry of the universe and, with the assumption of a perfect fluid, the Friedmann equations giving the time dependence of that geometry. The only parameter at this level of description is the mass-energy density: the geometry of the universe and its expansion is a direct consequence of its density.Horizons
An important feature of the Big Bang spacetime is the presence of particle horizons. Since the universe has a finite age, and light travels at a finite speed, there may be events in the past whose light has not yet had time to reach earth. This places a limit or a past horizon on the most distant objects that can be observed. Conversely, because space is expanding, and more distant objects are receding ever more quickly, light emitted by us today may never "catch up" to very distant objects. This defines a future horizon, which limits the events in the future that we will be able to influence. The presence of either type of horizon depends on the details of the Friedmann–Lemaître–Robertson–Walker (FLRW) metric that describes the expansion of the universe.
Thermalization
Some processes in the early universe occurred too slowly, compared to the expansion rate of the universe, to reach approximate thermodynamic equilibrium. Others were fast enough to reach thermalization. The parameter usually used to find out whether a process in the very early universe has reached thermal equilibrium is the ratio between the rate of the process (usually rate of collisions between particles) and the Hubble parameter. The larger the ratio, the more time particles had to thermalize before they were too far away from each other.
Timeline
According to the Big Bang models, the universe at the beginning was very hot and very compact, and since then it has been expanding and cooling.
Singularity
Existing theories of physics cannot tell us about the moment of the Big Bang. but the meaning of this extrapolation in the context of the Big Bang is unclear. Moreover, classical gravitational theories are expected to be inadequate to describe physics under these conditions. Quantum gravity effects are expected to be dominant during the Planck epoch, when the temperature of the universe was close to the Planck scale (around 10<sup>32</sup> K or 10<sup>28</sup> eV).
Even below the Planck scale, undiscovered physics could greatly influence the expansion history of the universe. The Standard Model of particle physics is only tested up to temperatures of order 10<sup>17</sup>K (10 TeV) in particle colliders, such as the Large Hadron Collider. Moreover, new physical phenomena decoupled from the Standard Model could have been important before the time of neutrino decoupling, when the temperature of the universe was only about 10<sup>10</sup>K (1 MeV).
Inflation and baryogenesis
The earliest phases of the Big Bang are subject to much speculation, given the lack of available data. In the most common models the universe was filled homogeneously and isotropically with a very high energy density and huge temperatures and pressures, and was very rapidly expanding and cooling. The period up to 10<sup>−43</sup> seconds into the expansion, the Planck epoch, was a phase in which the four fundamental forces—the electromagnetic force, the strong nuclear force, the weak nuclear force, and the gravitational force, were unified as one. In this stage, the characteristic scale length of the universe was the Planck length, , and consequently had a temperature of approximately 10<sup>32</sup> degrees Celsius. Even the very concept of a particle breaks down in these conditions. A proper understanding of this period awaits the development of a theory of quantum gravity. The Planck epoch was succeeded by the grand unification epoch beginning at 10<sup>−43</sup> seconds, where gravitation separated from the other forces as the universe's temperature fell. At a time around 10<sup>−36</sup> seconds, the electroweak epoch begins when the strong nuclear force separates from the other forces, with only the electromagnetic force and weak nuclear force remaining unified.
Inflation stopped locally at around 10<sup>−33</sup> to 10<sup>−32</sup> seconds, with the observable universe's volume having increased by a factor of at least 10<sup>78</sup>. Reheating followed as the inflaton field decayed, until the universe obtained the temperatures required for the production of a quark–gluon plasma as well as all other elementary particles. Temperatures were so high that the random motions of particles were at relativistic speeds, and particle–antiparticle pairs of all kinds were being continuously created and destroyed in collisions.
Cooling
sky reveals the distribution of galaxies beyond the Milky Way. Galaxies are color-coded by redshift.|alt=A map of the universe, with specks and strands of light of different colors.]]
The universe continued to decrease in density and fall in temperature, hence the typical energy of each particle was decreasing. Symmetry-breaking phase transitions put the fundamental forces of physics and the parameters of elementary particles into their present form, with the electromagnetic force and weak nuclear force separating at about 10<sup>−12</sup> seconds.
After about 10<sup>−11</sup> seconds, the picture becomes less speculative, since particle energies drop to values that can be attained in particle accelerators. At about 10<sup>−6</sup> seconds, quarks and gluons combined to form baryons such as protons and neutrons. The small excess of quarks over antiquarks led to a small excess of baryons over antibaryons. The temperature was no longer high enough to create either new proton–antiproton or neutron–antineutron pairs. A mass annihilation immediately followed, leaving just one in 10<sup>8</sup> of the original matter particles and none of their antiparticles. A similar process happened at about 1 second for electrons and positrons. After these annihilations, the remaining protons, neutrons and electrons were no longer moving relativistically and the energy density of the universe was dominated by photons (with a minor contribution from neutrinos).
A few minutes into the expansion, when the temperature was about a billion kelvin and the density of matter in the universe was comparable to the current density of Earth's atmosphere, neutrons combined with protons to form the universe's deuterium and helium nuclei in a process called Big Bang nucleosynthesis (BBN).
Structure formation
galaxy cluster – Hubble Frontier Fields view]]
After the recombination epoch, the slightly denser regions of the uniformly distributed matter gravitationally attracted nearby matter and thus grew even denser, forming gas clouds, stars, galaxies, and the other astronomical structures observable today.
Cosmic acceleration
Independent lines of evidence from Type Ia supernovae and the CMB imply that the universe today is dominated by a mysterious form of energy known as dark energy, which appears to homogeneously permeate all of space. Observations suggest that 73% of the total energy density of the present day universe is in this form. When the universe was very young it was likely infused with dark energy, but with everything closer together, gravity predominated, braking the expansion. Eventually, after billions of years of expansion, the declining density of matter relative to the density of dark energy allowed the expansion of the universe to begin to accelerate. saying: "These theories were based on the hypothesis that all the matter in the universe was created in one big bang at a particular time in the remote past." However, it did not catch on until the 1970s. Helge Kragh writes that the evidence for the claim that it was meant as a pejorative is "unconvincing", and mentions a number of indications that it was not a pejorative. but the term can also refer to a more generic early hot, dense phase. The term itself has been argued to be a misnomer because it evokes an explosion. The argument is that whereas an explosion suggests expansion into a surrounding space, the Big Bang only describes the intrinsic expansion of the contents of the universe. Another issue pointed out by Santhosh Mathew is that bang implies sound, which is not an important feature of the model.
<blockquote>The term 'big bang' was coined with derisive intent by Fred Hoyle, and its endurance testifies to Sir Fred's creativity and wit. Indeed, the term survived an international competition in which three judges — the television science reporter Hugh Downs, the astronomer Carl Sagan, and myself — sifted through 13,099 entries from 41 countries and concluded that none was apt enough to replace it. No winner was declared, and like it or not, we are stuck with 'big bang'.</blockquote>
Before the name
Early cosmological models developed from observations of the structure of the universe and from theoretical considerations. In 1912, Vesto Slipher measured the first Doppler shift of a "spiral nebula" (spiral nebula is the obsolete term for spiral galaxies), and soon discovered that almost all such nebulae were receding from Earth. He did not grasp the cosmological implications of this fact, and indeed at the time it was highly controversial whether or not these nebulae were "island universes" outside our Milky Way. Ten years later, Alexander Friedmann, a Russian cosmologist and mathematician, derived the Friedmann equations from the Einstein field equations, showing that the universe might be expanding in contrast to the static universe model advocated by Albert Einstein at that time.
In 1924, American astronomer Edwin Hubble's measurement of the great distance to the nearest spiral nebulae showed that these systems were indeed other galaxies. Starting that same year, Hubble painstakingly developed a series of distance indicators, the forerunner of the cosmic distance ladder, using the Hooker telescope at Mount Wilson Observatory. This allowed him to estimate distances to galaxies whose redshifts had already been measured, mostly by Slipher. In 1929, Hubble discovered a correlation between distance and recessional velocity—now known as Hubble's law.
Independently deriving Friedmann's equations in 1927, Georges Lemaître, a Belgian physicist and Roman Catholic priest, proposed that the recession of the nebulae was due to the expansion of the universe. He inferred the relation that Hubble would later observe, given the cosmological principle.
In the 1920s and 1930s, almost every major cosmologist preferred an eternal steady-state universe, and several complained that the beginning of time implied by an expanding universe imported religious concepts into physics; this objection was later repeated by supporters of the steady-state theory. This perception was enhanced by the fact that the originator of the expanding universe concept, Lemaître, was a Roman Catholic priest. Arthur Eddington agreed with Aristotle that the universe did not have a beginning in time, viz., that matter is eternal. A beginning in time was "repugnant" to him. Lemaître, however, disagreed:
During the 1930s, other ideas were proposed as non-standard cosmologies to explain Hubble's observations, including the Milne model, the oscillatory universe (originally suggested by Friedmann, but advocated by Albert Einstein and Richard C. Tolman) and Fritz Zwicky's tired light hypothesis.
After World War II, two distinct possibilities emerged. One was Fred Hoyle's steady-state model, whereby new matter would be created as the universe seemed to expand. In this model the universe is roughly the same at any point in time. The other was Lemaître's expanding universe theory, advocated and developed by George Gamow, who used it to develop a theory for the abundance of chemical elements in the universe. and whose associates, Ralph Alpher and Robert Herman, predicted the cosmic background radiation.
As a named model
Ironically, it was Hoyle who coined the phrase that came to be applied to Lemaître's theory, referring to it as "this big bang idea" during a BBC Radio broadcast in March 1949.
In 1968 and 1970, Roger Penrose, Stephen Hawking, and George F. R. Ellis published papers where they showed that mathematical singularities were an inevitable initial condition of relativistic models of the Big Bang. Then, from the 1970s to the 1990s, cosmologists worked on characterizing the features of the Big Bang universe and resolving outstanding problems. In 1981, Alan Guth made a breakthrough in theoretical work on resolving certain outstanding theoretical problems in the Big Bang models with the introduction of an epoch of rapid expansion in the early universe he called "inflation". Meanwhile, during these decades, two questions in observational cosmology that generated much discussion and disagreement were over the precise values of the Hubble Constant and the matter-density of the universe (before the discovery of dark energy, thought to be the key predictor for the eventual fate of the universe).
Significant progress in Big Bang cosmology has been made since the late 1990s as a result of advances in telescope technology as well as the analysis of data from satellites such as the Cosmic Background Explorer (COBE), the Hubble Space Telescope and WMAP. Cosmologists now have fairly precise and accurate measurements of many of the parameters of the Big Bang model, and have made the unexpected discovery that the expansion of the universe appears to be accelerating.Observational evidence
The Big Bang models offer a comprehensive explanation for a broad range of observed phenomena, including the abundances of the light elements, the cosmic microwave background, large-scale structure, and Hubble's law.
The earliest and most direct observational evidence of the validity of the theory are the expansion of the universe according to Hubble's law (as indicated by the redshifts of galaxies), discovery and measurement of the cosmic microwave background and the relative abundances of light elements produced by Big Bang nucleosynthesis (BBN). More recent evidence includes observations of galaxy formation and evolution, and the distribution of large-scale cosmic structures. These are sometimes called the "four pillars" of the Big Bang models.
Precise modern models of the Big Bang appeal to various exotic physical phenomena that have not been observed in terrestrial laboratory experiments or incorporated into the Standard Model of particle physics. Of these features, dark matter is currently the subject of most active laboratory investigations. Remaining issues include the cuspy halo problem Inflation and baryogenesis remain more speculative features of current Big Bang models. Viable, quantitative explanations for such phenomena are still being sought. These are unsolved problems in physics.
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Hubble's law and the expansion of the universe
Observations of distant galaxies and quasars show that these objects are redshifted: the light emitted from them has been shifted to longer wavelengths. This can be seen by taking a frequency spectrum of an object and matching the spectroscopic pattern of emission or absorption lines corresponding to atoms of the chemical elements interacting with the light. These redshifts are uniformly isotropic, distributed evenly among the observed objects in all directions. If the redshift is interpreted as a Doppler shift, the recessional velocity of the object can be calculated. For some galaxies, it is possible to estimate distances via the cosmic distance ladder. When the recessional velocities are plotted against these distances, a linear relationship known as Hubble's law is observed:
An unexplained discrepancy with the determination of the Hubble constant is known as Hubble tension. Techniques based on observation of the CMB suggest a lower value of this constant compared to the quantity derived from measurements based on the cosmic distance ladder.Cosmic microwave background radiation
spectrum measured by the FIRAS instrument on the COBE satellite is the most-precisely measured blackbody spectrum in nature. The data points and error bars on this graph are obscured by the theoretical curve.]]
In 1964, Arno Penzias and Robert Wilson serendipitously discovered the cosmic background radiation, an omnidirectional signal in the microwave band. the mean free path for a photon becomes long enough to reach the present day and the universe becomes transparent.
|bibcode2013ApJS..208...20B |s2cid119271232}}</ref> The radiation is isotropic to roughly one part in 100,000.]]
In 1989, NASA launched COBE, which made two major advances: in 1990, high-precision spectrum measurements showed that the CMB frequency spectrum is an almost perfect blackbody with no deviations at a level of 1 part in 10<sup>4</sup>, and measured a residual temperature of 2.726 K (more recent measurements have revised this figure down slightly to 2.7255 K); then in 1992, further COBE measurements discovered tiny fluctuations (anisotropies) in the CMB temperature across the sky, at a level of about one part in 10<sup>5</sup>.
In early 2003, the first results of the Wilkinson Microwave Anisotropy Probe were released, yielding what were at the time the most accurate values for some of the cosmological parameters. The results disproved several specific cosmic inflation models, but are consistent with the inflation theory in general.
The measured abundances all agree at least roughly with those predicted from a single value of the baryon-to-photon ratio. The agreement is excellent for deuterium, close but formally discrepant for <sup>4</sup>He, and off by a factor of two for <sup>7</sup>Li (this anomaly is known as the cosmological lithium problem); in the latter two cases, there are substantial systematic uncertainties. Nonetheless, the general consistency with abundances predicted by BBN is strong evidence for the Big Bang, as the theory is the only known explanation for the relative abundances of light elements, and it is virtually impossible to "tune" the Big Bang to produce much more or less than 20–30% helium. Indeed, there is no obvious reason outside of the Big Bang that, for example, the young universe before star formation, as determined by studying matter supposedly free of stellar nucleosynthesis products, should have more helium than deuterium or more deuterium than <sup>3</sup>He, and in constant ratios, too. and since then, larger structures have been forming, such as galaxy clusters and superclusters. Primordial gas clouds of BICEP2 telescope under a microscope – used to search for polarization in the CMB]]
In 2011, astronomers found what they believe to be pristine clouds of primordial gas by analyzing absorption lines in the spectra of distant quasars. Before this discovery, all other astronomical objects have been observed to contain heavy elements that are formed in stars. Despite being sensitive to carbon, oxygen, and silicon, these three elements were not detected in these two clouds. Since the clouds of gas have no detectable levels of heavy elements, they likely formed in the first few minutes after the Big Bang, during BBN.
Other lines of evidence
The age of the universe as estimated from the Hubble expansion and the CMB is now in agreement with other estimates using the ages of the oldest stars, both as measured by applying the theory of stellar evolution to globular clusters and through radiometric dating of individual Population II stars. It is also in agreement with age estimates based on measurements of the expansion using Type Ia supernovae and measurements of temperature fluctuations in the cosmic microwave background. The agreement of independent measurements of this age supports the Lambda-CDM (ΛCDM) model, since the model is used to relate some of the measurements to an age estimate, and all estimates turn agree. Still, some observations of objects from the relatively early universe (in particular quasar APM 08279+5255) raise concern as to whether these objects had enough time to form so early in the ΛCDM model.
The prediction that the CMB temperature was higher in the past has been experimentally supported by observations of very low temperature absorption lines in gas clouds at high redshift. This prediction also implies that the amplitude of the Sunyaev–Zel'dovich effect in clusters of galaxies does not depend directly on redshift. Observations have found this to be roughly true, but this effect depends on cluster properties that do change with cosmic time, making precise measurements difficult.Future observationsFuture gravitational-wave observatories might be able to detect primordial gravitational waves, relics of the early universe, up to less than a second after the Big Bang.Problems and related issues in physics
As with any theory, a number of mysteries and problems have arisen as a result of the development of the Big Bang models. Some of these mysteries and problems have been resolved while others are still outstanding. Proposed solutions to some of the problems in the Big Bang model have revealed new mysteries of their own. For example, the horizon problem, the magnetic monopole problem, and the flatness problem are most commonly resolved with inflation theory, but the details of the inflationary universe are still left unresolved and many, including some founders of the theory, say it has been disproven. What follows are a list of the mysterious aspects of the Big Bang concept still under intense investigation by cosmologists and astrophysicists.
Baryon asymmetry
It is not yet understood why the universe has more matter than antimatter. All these conditions occur in the Standard Model, but the effects are not strong enough to explain the present baryon asymmetry.Dark energy
Measurements of the redshift–magnitude relation for type Ia supernovae indicate that the expansion of the universe has been accelerating since the universe was about half its present age. To explain this acceleration, cosmological models require that much of the energy in the universe consists of a component with large negative pressure, dubbed "dark energy". and the other using the characteristic pattern of the large-scale structure--baryon acoustic oscillations--as a cosmic ruler.
Negative pressure is believed to be a property of vacuum energy, but the exact nature and existence of dark energy remains one of the great mysteries of the Big Bang. Results from the WMAP team in 2008 are in accordance with a universe that consists of 73% dark energy, 23% dark matter, 4.6% regular matter and less than 1% neutrinos. A cosmological constant problem, sometimes called the "most embarrassing problem in physics", results from the apparent discrepancy between the measured energy density of dark energy, and the one naively predicted from Planck units.
Dark matter
shows the proportion of different components of the universe about 95% is dark matter and dark energy.]]
During the 1970s and the 1980s, various observations showed that there is not sufficient visible matter in the universe to account for the apparent strength of gravitational forces within and between galaxies. This led to the idea that up to 90% of the matter in the universe is dark matter that does not emit light or interact with normal baryonic matter. In addition, the assumption that the universe is mostly normal matter led to predictions that were strongly inconsistent with observations. In particular, the universe today is far more lumpy and contains far less deuterium than can be accounted for without dark matter. While dark matter has always been controversial, it is inferred by various observations: the anisotropies in the CMB, the galaxy rotation problem, galaxy cluster velocity dispersions, large-scale structure distributions, gravitational lensing studies, and X-ray measurements of galaxy clusters.
Indirect evidence for dark matter comes from its gravitational influence on other matter, as no dark matter particles have been observed in laboratories. Many particle physics candidates for dark matter have been proposed, and several projects to detect them directly are underway.
Additionally, there are outstanding problems associated with the currently favored cold dark matter model which include the dwarf galaxy problem and the cuspy halo problem. Alternative theories have been proposed that do not require a large amount of undetected matter, but instead modify the laws of gravity established by Newton and Einstein; yet no alternative theory has been as successful as the cold dark matter proposal in explaining all extant observations.
Horizon problem
The horizon problem results from the premise that information cannot travel faster than light. In a universe of finite age this sets a limit—the particle horizon—on the separation of any two regions of space that are in causal contact. The observed isotropy of the CMB is problematic in this regard: if the universe had been dominated by radiation or matter at all times up to the epoch of last scattering, the particle horizon at that time would correspond to about 2 degrees on the sky. There would then be no mechanism to cause wider regions to have the same temperature.
A resolution to this apparent inconsistency is offered by inflation theory in which a homogeneous and isotropic scalar energy field dominates the universe at some very early period (before baryogenesis). During inflation, the universe undergoes exponential expansion, and the particle horizon expands much more rapidly than previously assumed, so that regions presently on opposite sides of the observable universe are well inside each other's particle horizon. The observed isotropy of the CMB then follows from the fact that this larger region was in causal contact before the beginning of inflation.
Magnetic monopoles
The magnetic monopole objection was raised in the late 1970s. Grand unified theories (GUTs) predicted topological defects in space that would manifest as magnetic monopoles. These objects would be produced efficiently in the hot early universe, resulting in a density much higher than is consistent with observations, given that no monopoles have been found. This problem is resolved by cosmic inflation, which removes all point defects from the observable universe, in the same way that it drives the geometry to flatness.
The problem is that any small departure from the critical density grows with time, and yet the universe today remains very close to flat. Given that a natural timescale for departure from flatness might be the Planck time, 10<sup>−43</sup> seconds,
Misconceptions
One of the common misconceptions about the Big Bang model is that it fully explains the origin of the universe. However, the Big Bang model does not describe how energy, time, and space were caused, but rather it describes the emergence of the present universe from an ultra-dense and high-temperature initial state. It is misleading to visualize the Big Bang by comparing its size to everyday objects. When the size of the universe at Big Bang is described, it refers to the size of the observable universe, and not the entire universe.
Another common misconception is that the Big Bang must be understood as the expansion of space and not in terms of the contents of space exploding apart. In fact, either description can be accurate. The expansion of space (implied by the FLRW metric) is only a mathematical convention, corresponding to a choice of coordinates on spacetime. There is no generally covariant sense in which space expands.
The recession speeds associated with Hubble's law are not velocities in a relativistic sense (for example, they are not related to the spatial components of 4-velocities). Therefore, it is not remarkable that according to Hubble's law, galaxies farther than the Hubble distance recede faster than the speed of light. Such recession speeds do not correspond to faster-than-light travel.
Many popular accounts attribute the cosmological redshift to the expansion of space. This can be misleading because the expansion of space is only a coordinate choice. The most natural interpretation of the cosmological redshift is that it is a Doppler shift.
Pre–Big Bang cosmology
The Big Bang explains the evolution of the universe from a starting density and temperature that is well beyond humanity's capability to replicate, so extrapolations to the most extreme conditions and earliest times are necessarily more speculative. Lemaître called this initial state the "primeval atom" while Gamow called the material "ylem". How the initial state of the universe originated is still an open question, but the Big Bang model does constrain some of its characteristics. For example, if specific laws of nature were to come to existence in a random way, inflation models show, some combinations of these are far more probable, partly explaining why our Universe is rather stable. Another possible explanation for the stability of the Universe could be a hypothetical multiverse, which assumes every possible universe to exist, and thinking species could only emerge in those stable enough. A flat universe implies a balance between gravitational potential energy and other energy forms, requiring no additional energy to be created. As such, physics may conclude that time did not exist before the Big Bang.
While it is not known what could have preceded the hot dense state of the early universe or how and why it originated, or even whether such questions are sensible, speculation abounds on the subject of "cosmogony".
Some speculative proposals in this regard, each of which entails untested hypotheses, are:
* The simplest models, in which the Big Bang was caused by quantum fluctuations. That scenario had very little chance of happening, but, according to the totalitarian principle, even the most improbable event will eventually happen. It took place instantly, in our perspective, due to the absence of perceived time before the Big Bang.
* Emergent Universe models, which feature a low-activity past-eternal era before the Big Bang, resembling ancient ideas of a cosmic egg and birth of the world out of primordial chaos.
* Models in which the whole of spacetime is finite, including the Hartle–Hawking no-boundary condition. For these cases, the Big Bang does represent the limit of time but without a singularity. In such a case, the universe is self-sufficient.
* Brane cosmology models, in which inflation is due to the movement of branes in string theory; the pre-Big Bang model; the ekpyrotic model, in which the Big Bang is the result of a collision between branes; and the cyclic model, a variant of the ekpyrotic model in which collisions occur periodically. In the latter model the Big Bang was preceded by a Big Crunch and the universe cycles from one process to the other.
* Eternal inflation, in which universal inflation ends locally here and there in a random fashion, each end-point leading to a bubble universe, expanding from its own big bang. This is sometimes referred to as pre-big bang inflation.
Proposals in the last two categories see the Big Bang as an event in either a much larger and older universe or in a multiverse.
Ultimate fate of the universe
Before observations of dark energy, cosmologists considered two scenarios for the future of the universe. If the mass density of the universe were greater than the critical density, then the universe would reach a maximum size and then begin to collapse. It would become denser and hotter again, ending with a state similar to that in which it started—a Big Crunch. Moreover, if protons are unstable, then baryonic matter would disappear, leaving only radiation and black holes. Eventually, black holes would evaporate by emitting Hawking radiation. The entropy of the universe would increase to the point where no organized form of energy could be extracted from it, a scenario known as heat death.
Modern observations of accelerating expansion imply that more and more of the currently visible universe will pass beyond our event horizon and out of contact with us. The eventual result is not known. The ΛCDM model of the universe contains dark energy in the form of a cosmological constant. This theory suggests that only gravitationally bound systems, such as galaxies, will remain together, and they too will be subject to heat death as the universe expands and cools. Other explanations of dark energy, called phantom energy theories, suggest that ultimately galaxy clusters, stars, planets, atoms, nuclei, and matter itself will be torn apart by the ever-increasing expansion in a so-called Big Rip.Religious and philosophical interpretations
<!--
Please do not add quotes from religious texts in this article,
the main article treating religious views on the Big Bang is
Religious interpretations of the Big Bang theory.
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As a description of the origin of the universe, the Big Bang has significant bearing on religion and philosophy. As a result, it has become one of the liveliest areas in the discourse between science and religion. Some believe the Big Bang implies a creator, while others argue that Big Bang cosmology makes the notion of a creator superfluous.<ref name"Frame2009"/>See also
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* , a Big Bang speculation
* . Also known as the Big Chill and the Big Freeze
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Notes
ReferencesCitationsBibliography
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* "Reprinted from Astrophysics and Space Science Volumes 269–270, Nos. 1–4, 1999".
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* "Symposium held in Dallas, Tex., Dec. 11-16, 1988."
* The 2004 edition of the book is available from the [https://archive.org/details/RoadToRealityRobertPenrose Internet Archive]. Retrieved 20 December 2019.
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Further reading
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* "Lectures presented at the XX Canary Islands Winter School of Astrophysics, held in Tenerife, Spain, November 17–18, 2008."
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* 1st edition is available from the [https://archive.org/details/TheFirstThreeMinutesAModernViewOfTheOriginOfTheUniverseS.Weinberg Internet Archive]. Retrieved 23 December 2019.
* External links
* [https://onceuponauniverse.com/about/in-the-beginning/ Once Upon a Universe] – STFC funded project explaining the history of the universe in easy-to-understand language
* [https://map.gsfc.nasa.gov/universe/bb_theory.html "Big Bang Cosmology"] – NASA/WMAP Science Team
* [https://science.nasa.gov/astrophysics/focus-areas/what-powered-the-big-bang/ "The Big Bang"] – NASA Science
* [https://www.science20.com/hammock_physicist/big_bang_big_bewilderment "Big Bang, Big Bewilderment"] – Big bang model with animated graphics by Johannes Koelman
* [https://nautil.us/the-trouble-with-the-big-bang-238547/ "The Trouble With "The Big Bang""] – A rash of recent articles illustrates a longstanding confusion over the famous term. by Sabine Hossenfelde
Category:Physical cosmology
Category:Concepts in astronomy
Category:Astronomical events
Category:Scientific models
Category:Origins
Category:Beginnings | https://en.wikipedia.org/wiki/Big_Bang | 2025-04-05T18:26:41.732166 |
4119 | Bock | Bock () is a strong German beer, usually a dark lager.
History
The style now known as Bock was first brewed in the 14th century in the Hanseatic town of Einbeck in Lower Saxony.
The style was later adopted in Bavaria by Munich brewers in the 17th century. Due to their Bavarian accent, citizens of Munich pronounced "Einbeck" as "ein Bock" ("a billy goat"), and thus the beer became known as "Bock". A goat often appears on bottle labels.
Styles
Substyles of Bock include:
Maibock (May Bock), a paler, more hopped version generally made for consumption at spring festivals. Due to its lighter colour, it is also referred to as Heller Bock; from German hell (bright, light in colour).
Doppelbock (Double Bock), a stronger and maltier version
Eisbock (Ice Bock), a much stronger version made by partially freezing the beer and removing the ice that forms
Weizenbock (Wheat Bock), a wheat beer made from 40 to 60% wheat
Traditionally Bock is a sweet, relatively strong (6.3–7.6% by volume), lightly hopped lager registering between 20 and 30 International Bitterness Units (IBUs). The beer should be clear, with colour ranging from light copper to brown, and a bountiful, persistent off-white head. The aroma should be malty and toasty, possibly with hints of alcohol, but no detectable hops or fruitiness. The mouthfeel is smooth, with low to moderate carbonation and no astringency. The taste is rich and toasty, sometimes with a bit of caramel. The low-to-undetectable presence of hops provides just enough bitterness so that the sweetness is not cloying and the aftertaste is muted.
Maibock
The Maibock style – also known as Heller Bock or Lente Bock in the Netherlandsis a strong pale lager, lighter in colour and with more hop presence.
Today, Doppelbock is still strongranging from 7% to 12% or more by volume. It is clear, with colour ranging from dark gold, for the paler version, to dark brown with ruby highlights for a darker version. It has a large, creamy, persistent head (although head retention may be impaired by alcohol in the stronger versions). The aroma is intensely malty, with some toasty notes, and possibly some alcohol presence as well; darker versions may have a chocolate-like or fruity aroma. The flavour is very rich and malty, with noticeable alcoholic strength, and little or no detectable hops (16–26 IBUs). made by partially freezing a Doppelbock and removing the water ice to concentrate the flavour and alcohol content, which ranges from 8.6% to 14.3% by volume.
It is clear, with a colour ranging from deep copper to dark brown in colour, often with ruby highlights. Although it can pour with a thin off-white head, head retention is frequently impaired by the higher alcohol content. The aroma is intense, with no hop presence, but frequently can contain fruity notes, especially of prunes, raisins, and plums.
Weizenbock
Weizenbock is a style that replaces some of the barley in the grain bill with 40–60% wheat. It was first produced in Bavaria in 1907 by G. Schneider & Sohn and was named Aventinus after 16th-century Bavarian historian Johannes Aventinus. The style combines darker Munich malts and top-fermenting wheat beer yeast, brewed at the strength of a Doppelbock.
References
External links
Description of German Lenten Beer History
Category:German beer styles | https://en.wikipedia.org/wiki/Bock | 2025-04-05T18:26:41.741515 |
4124 | Bantu languages | shown within the Niger–Congo language family. Non-Bantu, but Niger-Congo, languages are greyscale.}}
| iso2 = bnt
| iso5 = bnt
| glotto = narr1281
| glottorefname = Narrow Bantu
| protoname = Proto-Bantu
| children =
| region = Central Africa, Southeast Africa, East Africa, Southern Africa, Southern Somalia
}}
The Bantu languages (English: , Proto-Bantu: *bantʊ̀) are a language family of about 600 languages that are spoken by the Bantu peoples of Central, Southern, Eastern and Southeast Africa. They form the largest branch of the Southern Bantoid languages.
The total number of Bantu languages is estimated at between 440 and 680 distinct languages, depending on the definition of "language" versus "dialect". Many Bantu languages borrow words from each other, and some are mutually intelligible. Some of the languages are spoken by a very small number of people, for example the Kabwa language was estimated in 2007 to be spoken by only 8500 people but was assessed to be a distinct language.
The total number of Bantu speakers is estimated to be around 350 million in 2015 (roughly 30% of the population of Africa or 5% of the world population). Bantu languages are largely spoken southeast of Cameroon, and throughout Central, Southern, Eastern, and Southeast Africa. About one-sixth of Bantu speakers, and one-third of Bantu languages, are found in the Democratic Republic of the Congo.
The most widely spoken Bantu language by number of speakers is Swahili, with 16 million native speakers and 80 million L2 speakers (2015). Most native speakers of Swahili live in Tanzania, where it is a national language, while as a second language, it is taught as a mandatory subject in many schools in East Africa, and is a lingua franca of the East African Community.
Other major Bantu languages include Lingala with more than 20 million speakers (Congo, DRC), followed by Zulu with 13.56 million speakers (South Africa), Xhosa at a distant third place with 8.2 million speakers (South Africa and Zimbabwe), and Shona with less than 10 million speakers (if Manyika and Ndau are included), while Sotho-Tswana languages (Sotho, Tswana and Pedi) have more than 15 million speakers (across Botswana, Lesotho, South Africa, and Zambia). Zimbabwe has Kalanga, Matebele, Nambiya, and Xhosa speakers. Ethnologue separates the largely mutually intelligible Kinyarwanda and Kirundi, which together have 20 million speakers.Name
The similarity among dispersed Bantu languages had been observed as early as the 17th century. The term Bantu as a name for the group was not coined but "noticed" or "identified" (as Bâ-ntu) by Wilhelm Bleek as the first European in 1857 or 1858, and popularized in his Comparative Grammar of 1862. He noticed the term to represent the word for "people" in loosely reconstructed Proto-Bantu, from the plural noun class prefix *ba- categorizing "people", and the root *ntʊ̀- "some (entity), any" (e.g. Xhosa umntu "person", abantu "people"; Zulu umuntu "person", abantu "people").
There is no native term for the people who speak Bantu languages because they are not an ethnic group. People speaking Bantu languages refer to their languages by ethnic endonyms, which did not have an indigenous concept prior to European contact for the larger ethnolinguistic phylum named by 19th-century European linguists. Bleek's identification was inspired by the anthropological observation of groups frequently self-identifying as "people" or "the true people" (as is the case, for example, with the term Khoikhoi, but this is a kare "praise address" and not an ethnic name).
The term narrow Bantu, excluding those languages classified as Bantoid by Malcolm Guthrie (1948), was introduced in the 1960s.
The prefix ba- specifically refers to people. Endonymically, the term for cultural objects, including language, is formed with the ki- noun class (Nguni ísi-), as in KiSwahili (Swahili language and culture), IsiZulu (Zulu language and culture) and KiGanda (Ganda religion and culture).
In the 1980s, South African linguists suggested referring to these languages as KiNtu. The word kintu exists in some places, but it means "thing", with no relation to the concept of "language". In addition, delegates at the African Languages Association of Southern Africa conference in 1984 reported that, in some places, the term Kintu has a derogatory significance. This is because kintu refers to "things" and is used as a dehumanizing term for people who have lost their dignity.
In addition, Kintu is a figure in some mythologies.
In the 1990s, the term Kintu was still occasionally used by South African linguists. But in contemporary decolonial South African linguistics, the term Ntu languages is used.
Origin
The Bantu languages descend from a common Proto-Bantu language, which is believed to have been spoken in what is now Cameroon in Central Africa. An estimated 2,500–3,000 years ago (1000 BC to 500 BC), speakers of the Proto-Bantu language began a series of migrations eastward and southward, carrying agriculture with them. This Bantu expansion came to dominate Sub-Saharan Africa east of Cameroon, an area where Bantu peoples now constitute nearly the entire population. Some other sources estimate the Bantu Expansion started closer to 3000 BC.
The technical term Bantu, meaning "human beings" or simply "people", was first used by Wilhelm Bleek (1827–1875), as the concept is reflected in many of the languages of this group. A common characteristic of Bantu languages is that they use words such as muntu or mutu for "human being" or in simplistic terms "person", and the plural prefix for human nouns starting with mu- (class 1) in most languages is ba- (class 2), thus giving bantu for "people". Bleek, and later Carl Meinhof, pursued extensive studies comparing the grammatical structures of Bantu languages.
Classification
, including the addition of a zone J around the Great Lakes. The Jarawan languages are spoken in Nigeria.]]
The most widely used classification is an alphanumeric coding system developed by Malcolm Guthrie in his 1948 classification of the Bantu languages. It is mainly geographic. The term "narrow Bantu" was coined by the Benue–Congo Working Group to distinguish Bantu as recognized by Guthrie, from the Bantoid languages not recognized as Bantu by Guthrie.
In recent times, the distinctiveness of Narrow Bantu as opposed to the other Southern Bantoid languages has been called into doubt, but the term is still widely used.
There is no true genealogical classification of the (Narrow) Bantu languages. Until recently most attempted classifications only considered languages that happen to fall within traditional Narrow Bantu, but there seems to be a continuum with the related languages of South Bantoid.
At a broader level, the family is commonly split in two depending on the reflexes of proto-Bantu tone patterns: many Bantuists group together parts of zones A through D (the extent depending on the author) as Northwest Bantu or Forest Bantu, and the remainder as Central Bantu or Savanna Bantu. The two groups have been described as having mirror-image tone systems: where Northwest Bantu has a high tone in a cognate, Central Bantu languages generally have a low tone, and vice versa.
Northwest Bantu is more divergent internally than Central Bantu, and perhaps less conservative due to contact with non-Bantu Niger–Congo languages; Central Bantu is likely the innovative line cladistically. Northwest Bantu is not a coherent family, but even for Central Bantu the evidence is lexical, with little evidence that it is a historically valid group.
Another attempt at a detailed genetic classification to replace the Guthrie system is the 1999 "Tervuren" proposal of Bastin, Coupez, and Mann. However, it relies on lexicostatistics, which, because of its reliance on overall similarity rather than shared innovations, may predict spurious groups of conservative languages that are not closely related. Meanwhile, Ethnologue has added languages to the Guthrie classification which Guthrie overlooked, while removing the Mbam languages (much of zone A), and shifting some languages between groups (much of zones D and E to a new zone J, for example, and part of zone L to K, and part of M to F) in an apparent effort at a semi-genetic, or at least semi-areal, classification. This has been criticized for sowing confusion in one of the few unambiguous ways to distinguish Bantu languages. Nurse & Philippson (2006) evaluate many proposals for low-level groups of Bantu languages, but the result is not a complete portrayal of the family.
The languages that share Dahl's law may also form a valid group, Northeast Bantu. The infobox at right lists these together with various low-level groups that are fairly uncontroversial, though they continue to be revised. The development of a rigorous genealogical classification of many branches of Niger–Congo, not just Bantu, is hampered by insufficient data.
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Other computational phylogenetic analyses of Bantu include Currie et al. (2013), Grollemund et al. (2015), Rexova et al. 2006, Holden et al., 2016, and Whiteley et al. 2018.
Glottolog classification
Glottolog (2021) does not consider the older geographic classification by Guthrie relevant for its ongoing classification based on more recent linguistic studies, and divides Bantu into four main branches: Bantu A-B10-B20-B30, Central-Western Bantu, East Bantu and Mbam-Bube-Jarawan.
Language structure
Guthrie reconstructed both the phonemic inventory and the vocabulary of Proto-Bantu. In Swahili, for example, Kitoto kidogo kimekisoma (for comparison, Kamwana kadoko karikuverenga in Shona language) means 'The small child has read it [a book]'. kitoto 'child' governs the adjective prefix ki- (representing the diminutive form of the word) and the verb subject prefix a-. Then comes perfect tense -me- and an object marker -ki- agreeing with implicit kitabu 'book' (from Arabic kitab). Pluralizing to 'children' gives Vitoto vidogo vimekisoma (Vana vadoko varikuverenga in Shona), and pluralizing to 'books' (vitabu) gives vitoto vidogo vimevisoma. while slurring of the final syllable (though written) is reported as common among the Tonga of Malawi. The morphological shape of Bantu words is typically CV, VCV, CVCV, VCVCV, etc.; that is, any combination of CV (with possibly a V- syllable at the start). In other words, a strong claim for this language family is that almost all words end in a vowel, precisely because closed syllables (CVC) are not permissible in most of the documented languages, as far as is understood. and the Makua languages.
With few exceptions, such as Kiswahili and Rutooro, Bantu languages are tonal and have two to four register tones.
Reduplication
Reduplication is a common morphological phenomenon in Bantu languages and is usually used to indicate frequency or intensity of the action signalled by the (unreduplicated) verb stem.
*Example: in Swahili, piga means "strike", pigapiga means "strike repeatedly".
Well-known words and names that have reduplication include:
*Bafana Bafana, a football team
*Chipolopolo, a football team
*Eric Djemba-Djemba, a footballer
*Lomana LuaLua, a footballer
Repetition emphasizes the repeated word in the context that it is used. For instance, "Mwenda pole hajikwai," means "He who goes slowly doesn't trip," while, "Pole pole ndio mwendo," means "A slow but steady pace wins the race." The latter repeats "pole" to emphasize the consistency of slowness of the pace.
As another example, "Haraka haraka" would mean "hurrying just for the sake of hurrying" (reckless hurry), as in "Njoo! Haraka haraka" [come here! Hurry, hurry].
In contrast, there are some words in some of the languages in which reduplication has the opposite meaning. It usually denotes short durations, or lower intensity of the action, and also means a few repetitions or a little bit more.
*Example 1: In Xitsonga and (Chi)Shona, famba means "walk" while famba-famba means "walk around".
*Example 2: in isiZulu and SiSwati hamba means "go", hambahamba means "go a little bit, but not much".
*Example 3: in both of the above languages shaya means "strike", shayashaya means "strike a few more times lightly, but not heavy strikes and not too many times".
*Example 4: In Shona means "scratch", Kwenyakwenya means "scratch excessively or a lot".
*Example 5: In Luhya cheenda means "walk", cheendacheenda means "take a walk but not far off", as in buying time before something is ready or a situation or time is right.
Noun class
The following is a list of nominal classes in Bantu languages:
{| class="wikitable"
! colspan="2" | Singular classes
! colspan="2" | Plural classes
! rowspan="2" | Typical meaning(s)
|-
! Number !! Prefix
! Number !! Prefix
|-
| 1 || *mʊ-
| 2 || *ba-
| Humans, animate
|-
| 3 || *mu-
| 4 || *mi-
| Plants, inanimate
|-
| 5 || *dɪ-
| 6 || *ma-
| Various; class 6 for liquids (mass nouns)
|-
| 7 || *ki-
| 8 || *bɪ-
| Various, diminutives, manner/way/language
|-
| 9 || *n-
| 10 || *n-
| Animals, inanimate
|-
| 11 || *du-
| colspan="2" |
| Abstract nouns
|-
| 12 || *ka-
| 13 || *tu-
| Diminutives
|-
| 14 || *bu-
| colspan"2" rowspan"6" |
| Abstract nouns
|-
| 15 || *ku-
| Infinitives
|-
| 16 || *pa-
| Locatives (proximal, exact)
|-
| 17 || *ku-
| Locatives (distal, approximate)
|-
| 18 || *mu-
| Locatives (interior)
|-
| 19 || *pɪ-
| Diminutives
|}
Syntax
Virtually all Bantu languages have a subject–verb–object word order, with some exceptions, such as
the Nen language, which has a subject–object–verb word order.
By country
Following is an incomplete list of the principal Bantu languages of each country. Included are those languages that constitute at least 1% of the population and have at least 10% the number of speakers of the largest Bantu language in the country.
Most languages are referred to in English without the class prefix (Swahili, Tswana, Ndebele), but are sometimes seen with the (language-specific) prefix (Kiswahili, Setswana, Sindebele). In a few cases prefixes are used to distinguish languages with the same root in their name, such as Tshiluba and Kiluba (both Luba), Umbundu and Kimbundu (both Mbundu). The prefixless form typically does not occur in the language itself, but is the basis for other words based on the ethnicity. So, in the country of Botswana the people are the Batswana, one person is a Motswana, and the language is Setswana; and in Uganda, centred on the kingdom of Buganda, the dominant ethnicity are the Baganda (singular Muganda), whose language is Luganda.
Lingua franca
*Swahili (Kiswahili) (350,000; tens of millions as L2)
Angola
*South Mbundu (Umbundu) (4 million)
*Central North Mbundu (Kimbundu) (3 million)
*North Bakongo (Kikongo) (576,800)
*Ovambo (Ambo) (Oshiwambo) (500,000)
*Luvale (Chiluvale) (500,000)
*Chokwe (Chichokwe) (500,000)
Botswana
*Tswana (Setswana) (1.6 million)
*Kalanga (Ikalanga) (150,000)
Burundi
:Swahili is a recognized national language
*Kirundi (8.5 – 10.5 million)
Cameroon
*Beti (1.7 million: 900,000 Bulu, 600,000 Ewondo, 120,000 Fang, 60,000 Eton, 30,000 Bebele)
*Basaa (230,000)
*Duala (350,000)
*Manenguba languages (230,000)
Central African Republic
*Mbati (60,000)
*Aka (30,000)
*Pande (8,870)
*Ngando (5,000)
*Ukhwejo
*Kako
*Mpiemo
*Bodo
*Kari
Comoros
*Shingazija
*Shindzuani
*Shimwali
Democratic Republic of the Congo
:Swahili is a recognized national language
*Lingala (Ngala) (2 million; 7 million with L2 speakers)
*Luba-Kasai (Tshiluba) (6.5 million)
*Kituba (4.5 million), a Bantu creole
*Kongo (Kikongo) (3.5 million)
*Luba-Katanga (Kiluba) (1.5+ million)
*Songe (Lusonge) (1+ million)
*Nande (Orundandi) (1 million)
*Tetela (Otetela) (800,000)
*Yaka (Iyaka) (700,000+)
*Shi (700,000)
*Yombe (Kiyombe) (670,000)
*Lele (Bashilele) (26,000)
Equatorial Guinea
*Beti (Fang) (300,000)
*Bube (40,000)
Eswatini
*Swazi (Siswati) (1 million)
Gabon
*Baka
*Barama
*Bekwel
*Benga
*Bubi
*Bwisi
*Duma
*Fang (500,000)
*Kendell
*Kanin
*Sake
*Sangu
*Seki
*Sighu
*Simba
*Sira
*Northern Teke
*Western Teke
*Tsaangi
*Tsogo
*Vili (3,600)
*Vumbu
*Wandji
*Wumbvu
*Yangho
*Yasa
India
*Sidi
Kenya
:Swahili is the national language. English and Swahili are official languages.
*Gikuyu (8 million)
*Luhya (6.8 million)
*Kamba (4 million)
*Meru (Kimeru) (2.7 million)
*Gusii (2 million)
*Mijikenda (Giriama, Kambe, Ribe, Rabai, Kauma, Chonyi, Jibana, Digo and Duruma)
*Taita
*Embu
*Mbeere
*Pokomo
*Kuria
*Suba
*Swahili
Lesotho
*Sesotho (1.8 million)
*Zulu (Isizulu) (300,000)
*Xhosa (Isixhosa)
Madagascar
*Shimaore
*Shindzuani
Malawi
*Chewa (Nyanja) (Chichewa) (7 million)
*Tumbuka (1 million)
*Yao (1 million)
Mayotte
*Shimaore
Mozambique
:Swahili is a recognized national language
*Makhuwa (4 million; 7.4 million all Makua)
*Tsonga (Xitsonga) (3.1 million)
*Shona (Ndau) (1.6 million)
*Lomwe (1.5 million)
*Sena (1.3 million)
*Tswa (1.2 million)
*Chuwabu (1.0 million)
*Chopi (800,000)
*Ronga (700,000)
*Chewa (Nyanja) (Chichewa) (600,000)
*Yao (Chiyao) (500,000)
*Nyungwe (Cinyungwe/Nhungue)(400,000)
*Tonga (400,000)
*Makonde (400,000)
*Nathembo (25,000)
Namibia
*Ovambo (Ambo, Oshiwambo) (1,500,000)
*Herero (200,000)
*Kavango (100,000)
*Lozi (Silozi)
Nigeria
*Jarawa (250,000)
*Mbula-Bwazza (100,000)
*Kulung (40,000)
*Bile (38,000)
*Lame (10,000)
*Mama (2,000–3,000)
*Shiki (1,200)
*Gwa
*Labir
*Dulbu
Pakistan
*Sidi
Republic of the Congo
*Kituba (1.2+ million) [a Bantu creole]
*Kongo (Kikongo) (1.0 million)
*Teke languages (500,000)
*Yombe (350,000)
*Suundi (120,000)
*Mbosi (110,000)
*Lingala (100,000; ? L2 speakers)
Rwanda
:Swahili, Kinyarwanda, English, and French are official languages
*Kinyarwanda (Kinyarwanda) (10 – 12 million)
Somalia
*Swahili (Mwini dialect)
*Chimwini
*Mushungulu
South Africa
According to the South African National Census of 2011:
*Zulu (Isizulu) (11,587,374
Some words from various Bantu languages have been borrowed into western languages. These include:
<!-- The words Agogo, Askari, Banjo, Duppy and Zombie derive from WEST AFRICAN LANGUAGES and hence are non-Bantu -->
*Bomba
*Bongos
*
*Candombe
*Chimpanzee
*Gumbo
*""
*
*
*
*Jilo
*Jumbo
*Kalimba
*Kwanzaa
*Mamba
*Mambo
*Mbira
*
*Rumba
*
*
*
*
}}
Writing systems
Along with the Latin script and Arabic script orthographies, there are also some modern indigenous writing systems used for Bantu languages:
*The Mwangwego alphabet is an abugida created in 1979 that is sometimes used to write the Chewa language and other languages of Malawi.
*The Mandombe script is an abugida that is used to write the Bantu languages of the Democratic Republic of the Congo, mainly by the Kimbanguist movement.
*The Isibheqe Sohlamvu or Ditema tsa Dinoko script is a featural syllabary used to write the Sintu or Southern Bantu languages.
See also
*Meeussen's rule
*Nguni languages
*Proto-Bantu Swadesh list
References
Bibliography
*
*
*
*
*.
*
*
*
*
*
*
* External links
*[https://archive.org/details/artedalinguadean00dias Arte da lingua de Angola: oeferecida [sic] a virgem Senhora N. do Rosario, mãy, Senhora dos mesmos pretos] The art of the language of Angola, by Father Pedro Dias, 1697, Lisbon, artedalinguadean
*[http://www.linguistics.berkeley.edu/CBOLD/ Comparative Bantu Online Dictionary] linguistics.berkeley.edu, includes comprehensive bibliography.
*Maho, Jouni Filip [https://web.archive.org/web/20130607210512/http://goto.glocalnet.net/mahopapers/nuglonline.pdf NUGL Online. The online version of the New Updated Guthrie List, a referential classification of the Bantu languages] goto.glocalnet.net, 4 June 2009, 120pp. Guthrie 1948 in detail, with subsequent corrections and corresponding ISO codes.
*[http://www.bantu-languages.com/en/ Bantu online resources] bantu-languages.com, Jacky Maniacky, 7 July 2007, including
**[http://www.bantu-languages.com/fr/classes.html List of Bantu noun classes with reconstructed Proto-Bantu prefixes] bantu-languages.com (in French)
*[https://web.archive.org/web/20120624221430/http://www.sscnet.ucla.edu/history/ehret/kinship/BantuClassification%204-09.pdf Ehret's compilation of classifications by Klieman, Bastin, himself, and others] pp 204–09, ucla.edu, 24 June 2012
*Contini-Morava, Ellen. [http://www3.iath.virginia.edu/swahili/ Noun Classification in Swahili]. 1994, Virginia.edu
*[https://web.archive.org/web/20121120223537/http://www.linguistics.berkeley.edu/CBOLD/Lgs/LgsbyGN.html List of Bantu language names with synonyms ordered by Guthrie number].linguistics.berkeley.edu 529 names
*[http://salanguages.com Introduction to the languages of South Africa] salanguages.com
*[https://web.archive.org/web/20110726212602/http://www.journalofwestafricanlanguages.org/NarrowBantu.aspx Narrow Bantu] Journal of West African Languages
*[http://www.ugandatravelguide.com/bantu-people.html Uganda Bantu Languages] ugandatravelguide.com
Category:Synthetic languages
Category:Agglutinative languages | https://en.wikipedia.org/wiki/Bantu_languages | 2025-04-05T18:26:41.776455 |
4127 | Bearing | Bearing(s) may refer to:
Bearing (angle), a term for direction
Bearing (mechanical), a component that separates moving parts and takes a load
Bridge bearing, a component separating a bridge pier and deck
Bearing BTS Station in Bangkok
Bearings (album), by Ronnie Montrose in 2000
See also
Posture (disambiguation)
Bering (disambiguation)
Baring (disambiguation) | https://en.wikipedia.org/wiki/Bearing | 2025-04-05T18:26:41.777397 |
4130 | CIM-10 Bomarc | The midcourse phase and homing dive used ramjets.
| origin = United States
| type = Surface-to-air missile
| used_by = United States Air Force <br /> Royal Canadian Air Force <br /> Canadian Forces
| manufacturer = Boeing Pilotless Aircraft Division
| unit_cost | propellant
| production_date = 1958
| service 1959 to 1 October 1972
| engine = *booster rocket
*ramjet
| engine_power | weight
| length | height
| diameter =
| wingspan =
| speed | vehicle_range
| ceiling =
| altitude | filling W40 nuclear warhead
| guidance = Initially ground-controlled, active radar homing terminal guidance
| detonation | launch_platform
}}
The Boeing CIM-10 Bomarc ("Boeing Michigan Aeronautical Research Center") (IM-99 Weapon System prior to September 1962) was a supersonic ramjet powered long-range surface-to-air missile (SAM) used during the Cold War for the air defense of North America. In addition to being the first operational long-range SAM and the first operational pulse doppler aviation radar, it was the only SAM deployed by the United States Air Force.
Stored horizontally in a launcher shelter with a movable roof, the missile was erected, fired vertically using rocket boosters to high altitude, and then tipped over into a horizontal Mach 2.5 cruise powered by ramjet engines. This lofted trajectory allowed the missile to operate at a maximum range as great as . Controlled from the ground for most of its flight, when it reached the target area it was commanded to begin a dive, activating an onboard active radar homing seeker for terminal guidance. A radar proximity fuse detonated the warhead, either a large conventional explosive or the W40 nuclear warhead.
The Air Force originally planned for a total of 52 sites covering most of the major cities and industrial regions in the US. The United States Army was deploying their own systems at the same time, and the two services fought constantly both in political circles and in the press. Development dragged on, and by the time it was ready for deployment in the late 1950s, the nuclear threat had moved from manned bombers to the intercontinental ballistic missile (ICBM). By this time the Army had successfully deployed the much shorter range Nike Hercules that they claimed filled any possible need through the 1960s, in spite of Air Force claims to the contrary.
As testing continued, the Air Force reduced its plans to sixteen sites, and then again to eight with an additional two sites in Canada. The first US site was declared operational in 1959, but with only a single working missile. Bringing the rest of the missiles into service took years, by which time the system was obsolete. Deactivations began in 1969 and by 1972 all Bomarc sites had been shut down. A small number were used as target drones, and only a few remain on display today.
Design and development
Initial studies
During World War II, the US Army Air Force (USAAF) concluded that existing anti-aircraft guns, only marginally effective against existing generations of propeller-driven aircraft, would not be effective at all against the emerging jet-powered designs. Like the Germans and British before them, they concluded the only successful defence would be to use guided weapons.
As early as 1944 the United States Army started exploring anti-aircraft missiles, examining a variety of concepts. At the time, two basic concepts appeared possible; one would use a short-range rocket that flew directly at the target from below following a course close to the line-of-sight, and the other would fly up to the target's altitude and then tip over and fly horizontally towards the target like a fighter aircraft. As both concepts seemed promising, the Army Air Force was given the task of developing the airplane-like design, while the Army Ordnance Department was given the more ballistic collision-course concept. Official requirements were published in 1945.
Official requirements were published in 1945; Bell Laboratories won the Ordnance contract for a short-range line-of-sight weapon under Project Nike, while a team of players led by Boeing won the contract for a long-range design known as Ground-to-Air Pilotless Aircraft, or GAPA. GAPA moved to the United States Air Force when that branch was formed in 1947. In 1946, the USAAF also started two early research projects into anti-missile systems in Project Thumper (MX-795) and Project Wizard (MX-794).
Bomarc A
Formally organized in 1946 under USAAF project MX-606, by 1950 Boeing had launched more than 100 test rockets in various configurations, all under the designator XSAM-A-1 GAPA. The tests were very promising, and Boeing received a USAF contract in 1949 to develop a production design under project MX-1599.
The MX-1599 missile was to be a ramjet-powered, nuclear-armed long-range surface-to-air missile to defend the Continental United States from high-flying bombers. The Michigan Aerospace Research Center (MARC) was added to the project soon afterward, and this gave the new missile its name Bomarc (for Boeing and MARC). In 1951, the USAF decided to emphasize its point of view that missiles were nothing else than pilotless aircraft by assigning aircraft designators to its missile projects, and anti-aircraft missiles received F-for-Fighter designations. The Bomarc became the F-99. and continued to denigrate Nike in the press over the next few years, in one case showing a graphic of Washington being destroyed by nuclear bombs that Ajax failed to stop.
Tests of the XF-99 test vehicles began in September 1952 and continued through early 1955. The XF-99 tested only the liquid-fueled booster rocket, which would accelerate the missile to ramjet ignition speed. In February 1955, tests of the XF-99A propulsion test vehicles began. These included live ramjets, but still had no guidance system or warhead. The designation YF-99A had been reserved for the operational test vehicles. In August 1955, the USAF discontinued the use of aircraft-like type designators for missiles, and the XF-99A and YF-99A became XIM-99A and YIM-99A, respectively. Originally the USAF had allocated the designation IM-69, but this was changed (possibly at Boeing's request to keep number 99) to IM-99 in October 1955.
By this time, Ajax was widely deployed around the United States and some overseas locations, and the Army was beginning to develop its much more powerful successor, Nike Hercules. Hercules was an existential threat to BOMARC, as its much greater range and nuclear warhead filled many of the roles that BOMARC was designed for. A new round of fighting in the press broke out, capped by an article in The New York Times entitled "Air Force Calls Army Nike Unfit To Guard Nation".
In October 1957, the first YIM-99A production-representative prototype flew with full guidance, and succeeded to pass the target within destructive range. In late 1957, Boeing received the production contract for the IM-99A Bomarc A, and in September 1959, the first IM-99A squadron became operational.United StatesThe first USAF operational Bomarc squadron was the 46th Air Defense Missile Squadron (ADMS), organized on 1 January 1959 and activated on 25 March. The 46th ADMS was assigned to the New York Air Defense Sector at McGuire Air Force Base, New Jersey. The training program, under the 4751st Air Defense Wing used technicians acting as instructors and was established for a four-month duration. Training included missile maintenance; SAGE operations and launch procedures, including the launch of an unarmed missile at Eglin. In September 1959 the squadron assembled at their permanent station, the Bomarc site near McGuire AFB, and trained for operational readiness. The first Bomarc-A were used at McGuire on 19 September 1959 with Kincheloe AFB getting the first operational IM-99Bs. While several of the squadrons replicated earlier fighter interceptor unit numbers, they were all new organizations with no previous historical counterpart.
ADC's initial plans called for some 52 Bomarc sites around the United States with 120 missiles each but as defense budgets decreased during the 1950s the number of sites dropped substantially. Ongoing development and reliability problems didn't help, nor did Congressional debate over the missile's usefulness and necessity. In June 1959, the Air Force authorized 16 Bomarc sites with 56 missiles each; the initial five would get the IM-99A with the remainder getting the IM-99B. However, in March 1960, HQ USAF cut deployment to eight sites in the United States and two in Canada. Between 2002 and 2004, 21,998 cubic yards of contaminated debris and soils were shipped to what was then known as Envirocare, located in Utah.
Modification and deactivation
In 1962, the US Air Force started using modified A-models as drones; following the October 1962 tri-service redesignation of aircraft and weapons systems they became CQM-10As. Otherwise the air defense missile squadrons maintained alert while making regular trips to Santa Rosa Island for training and firing practice. After the inactivation of the 4751st ADW(M) on 1 July 1962 and transfer of Hurlburt to Tactical Air Command for air commando operations the 4751st Air Defense Squadron (Missile) remained at Hurlburt and Santa Rosa Island for training purposes.
, 1977.]]
In the era of the intercontinental ballistic missiles the Bomarc, designed to intercept relatively slow manned bombers, had become a useless asset. The remaining Bomarc missiles were used by all armed services as high-speed target drones for tests of other air-defense missiles. The Bomarc A and Bomarc B targets were designated as CQM-10A and CQM-10B, respectively. The Progressive Conservative government of Prime Minister John Diefenbaker initially agreed to deploy the missiles, and shortly thereafter controversially scrapped the Avro Arrow, a supersonic manned interceptor aircraft, arguing that the missile program made the Arrow unnecessary. Ultimately, the Diefenbaker government decided that the Bomarcs should not be equipped with nuclear warheads. The dispute split the Diefenbaker Cabinet, and led to the collapse of the government in 1963. He won the 1963 election, largely on the basis of this issue, and his new Liberal government proceeded to accept nuclear-armed Bomarcs, with the first being deployed on 31 December 1963. When the nuclear warheads were deployed, Pearson's wife, Maryon, resigned her honorary membership in the anti-nuclear weapons group, Voice of Women.
No. 447 SAM Squadron operating out of RCAF Station La Macaza, Quebec, was activated on 15 September 1962 although warheads were not delivered until late 1963. The squadron followed the same operational procedures as No. 446, its sister squadron. With the passage of time the operational capability of the 1950s-era Bomarc system no longer met modern requirements; the Department of National Defence deemed that the Bomarc missile defense was no longer a viable system, and ordered both squadrons to be stood down in 1972. The bunkers and ancillary facilities remain at both former sites.Variants
* XF-99 (experimental for booster research)
* XF-99A/XIM-99A (experimental for ramjet research)
* YF-99A/YIM-99A (service-test)
* IM-99A/CIM-10A (initial production)
* IM-99B/CIM-10B ("advanced"<!-- with greater range for "Pattern Patrol", 3000 ft fuse, and TDDL commanding for ECCM using larger GAT "directional hlgh-gain data link antenna…composed of' 16 stationary segments in a circular pattern 60 feet high-->)
* CQM-10A (target drone developed from CIM-10A)
* CQM-10B (target drone developed from CIM-10B)
:: Bomarc site located at
: 447 SAM Squadron: 28 IM-99B, La Macaza, Quebec (La Macaza – Mont Tremblant International Airport) 1962–1972
:: Bomarc site located at (Approximately)
;
*United States Air Force Air (later Aerospace) Defense Command
: 6th Air Defense Missile Squadron, 56 IM-99A
:: Activated on 1 February 1959
:: Assigned to: New York Air Defense Sector
:: Inactivated 15 December 1964
:: Stationed at: Suffolk County Air Force Base Missile Annex, New York
::: Bomarc site located 3 miles SW at
: 22d Air Defense Missile Squadron: 28 IM-99A/28 IM-99B
:: Activated on 15 September 1959
:: Assigned to: Washington Air Defense Sector
:: Reassigned to: 33d Air Division, 1 April 1966
:: Reassigned to: 20th Air Division, 19 November 1969
:: Inactivated: 31 October 1972
:: Stationed at: Langley AFB, Virginia
::: Bomarc site located 3 miles WNW at
: 26th Air Defense Missile Squadron: 28 IM-99A/28 IM-99B
:: Activated 1 March 1959
:: Assigned to: Boston Air Defense Sector
:: Reassigned to: 35th Air Division, 1 April 1966
:: Reassigned to: 21st Air Division, 19 November 1969
:: Inactivated: 30 April 1972
:: Stationed at: Otis Air Force Base BOMARC site, Massachusetts
::: Bomarc site located 1 mile NNW at
: 30th Air Defense Missile Squadron: 28 IM-99A
:: Activated on 1 June 1959
:: Assigned to Bangor Air Defense Sector
:: Inactivated: 15 December 1964
:: Stationed at Dow AFB, Maine
::: Bomarc site located 4 mils NNE at
: 35th Air Defense Missile Squadron: 56 IM-99B
:: Activated 1 June 1960
:: Assigned to Syracuse Air Defense Sector
:: Reassigned to: Detroit Air Defense Sector, 4 September 1963
:: Reassigned to: 34th Air Division, 1 April 1966
:: Reassigned to: 35th Air Division, 15 September 1969
:: Inactivated: 31 December 1969
:: Stationed at: Niagara Falls Air Force Missile Site, New York
::: Bomarc site located at
: 37th Air Defense Missile Squadron: 28 IM-99B
:: Activated 1 March 1960
:: Assigned to 30th Air Division
:: Reassigned to: Sault Sainte Marie Air Defense Sector, 1 April 1960
:: Reassigned to: Duluth Air Defense Sector, 1 October 1963
:: Reassigned to: 29th Air Division, 1 April 1966
:: Reassigned to: 23d Air Division, 19 November 1969
:: Inactivated 31 July 1972
:: Stationed at: Kincheloe AFB, Michigan
::: Bomarc site located 19 miles NW at Raco
: 46th Air Defense Missile Squadron: 28 IM-99A/56 IM-99B
:: Activated 1 January 1959
:: Assigned to New York Air Defense Sector
:: Reassigned to: 21st Air Division, 1 April 1966
:: Reassigned to: 35th Air Division, 1 December 1957
:: Reassigned to: 21st Air Division, 19 November 1969
:: Inactivated 31 October 1972
:: Stationed at: McGuire AFB, New Jersey
::: Bomarc site located 4 miles ESE at
: 74th Air Defense Missile Squadron: 28 IM-99B
:: Activated 1 April 1960
:: Assigned to Duluth Air Defense Sector
:: Reassigned to: 29th Air Division, 1 April 1966
:: Reassigned to: 23d Air Division, 19 November 1969
:: Inactivated 30 April 1972
:: Stationed at: Duluth International Airport, Minnesota
::: Bomarc site located 10 miles NE at
: 4751st Air Defense Missile Squadron
:: Activated 15 January 1959
:: Assigned to 73d Air Division (Weapons)
:: Reassigned to: 32d Air Division, 1 October 1959
:: Reassigned to: Montgomery Air Defense Sector, 1 July 1962
:: Reassigned to: Air Defense, Tactical Air Command, 1 September 1979
:: Inactivated 30 September 1979
:: Stationed at: Eglin Auxiliary Field #9 (Hurlburt Field), Florida
::: Bomarc site located on Santa Rosa Island at
::: Bomarc site located at Eglin Auxiliary Field #5 (Piccolo Field) at
* Air Force Systems Command
:: Cape Canaveral Air Force Station, Florida
::: Launch Complex 4 (LC-4) was used for Bomarc testing and development launches 2 February 1956 – 15 April 1960 (17 Launches).
:: Vandenberg Air Force Base, California
::: Two launch sites, BOM-1 and BOM-2 were used by the United States Navy for Bomarc launches against aerial targets. The first launch taking place on 25 August 1966. The last two launches occurred on 14 July 1982. BOM1 49 launches; BOM2 38 launches.
Locations under construction but not activated. Each site was programmed for 28 IM-99B missiles:
* Camp Adair, Oregon
* Charleston AFB, South Carolina
* Ethan Allen AFB, Vermont
* Paine Field, Washington
* Travis AFB, California
* Truax Field, Wisconsin
* Vandenberg AFB, California
<small>Reference for BOMARC units and locations:</small>
<gallery class="center">
File:6th Air Defense Missile Squadron - ADC - Emblem.png|6th ADMS
File:22d Air Defense Missile Squadron - ADC - Emblem.png|22d ADMS
File:26th Air Defense Missile Squadron - ADC - Emblem.png|26th ADMS
File:30th Air Defense Missile Squadron - ADC - Emblem.png|30th ADMS
File:35th Air Defense Missile Squadron - ADC - Emblem.png|35th ADMS
File:37th Air Defense Missile Squadron - ADC - Emblem.png|37th ADMS
File:46th Air Defense Missile Squadron - ADC - Emblem.png|46th ADMS
File:74th Air Defense Missile Squadron - ADC - Emblem.png|74th ADMS
File:4751st_Air_Defense_Squadron_-_ADC_-_Emblem.png|4751st ADMS
File:Rcaf 446 squadorn BOMARC.png|RCAF 446 Sqdn
File:Rcaf 447 squadorn BOMARC.png|RCAF 447 Squdn
</gallery>
Surviving missiles
Although a number of IM-99/CIM-10 Bomarcs have been placed on public display, because of concerns about the possible environmental hazards of the thoriated magnesium structure of the airframe several have been removed from public view.
Russ Sneddon, director of the Air Force Armament Museum, Eglin Air Force Base, Florida provided information about missing CIM-10 exhibit airframe serial 59–2016, one of the museum's original artifacts from its founding in 1975 and donated by the 4751st Air Defense Squadron at Hurlburt Field, Eglin Auxiliary Field 9, Eglin AFB. As of December 2006, the suspect missile was stored in a secure compound behind the Armaments Museum. In December 2010, the airframe was still on premises, but partly dismantled.
Ottawa, Ontario, Canada, c. 2006.]]
Below is a list of museums or sites which have a Bomarc missile on display or in storage:
* Air Force Armament Museum, Eglin Air Force Base, Florida. In storage.
* Air Force Space & Missile Museum, Cape Canaveral Air Force Station, Florida. It is on display Hangar C.
* Alberta Aviation Museum, Edmonton, Alberta, Canada
* Canada Aviation and Space Museum, Ottawa, Ontario, Canada
* Hill Aerospace Museum, Hill Air Force Base, Utah
* Historical Electronics Museum, Linthicum, Maryland (display of AN/DPN-53, the first airborne pulse-doppler radar, used in the Bomarc)
* Illinois Soldiers & Sailors Home, Quincy, Illinois
* Keesler Air Force Base, Biloxi, Mississippi
* Museum of Aviation, Robins Air Force Base, Warner Robins, Georgia
* National Museum of Nuclear Science & History, Kirtland Air Force Base, Albuquerque, New Mexico
*
* Octave Chanute Aerospace Museum (former Chanute Air Force Base), Rantoul, Illinois; the museum closed on 30 December 2015
* Peterson Air and Space Museum, Peterson Air Force Base, Colorado
* Strategic Air and Space Museum, Ashland, Nebraska
* USAF Airman Heritage Museum, Lackland Air Force Base, San Antonio, Texas
* Vandenberg Air Force Base (Space and Missile Heritage Center), California. Bomarc not for public access.
Impact on popular music
The Bomarc missile captured the imagination of the American and Canadian popular music industry, giving rise to a pop music group, the Bomarcs (composed mainly of servicemen stationed on a Florida radar site that tracked Bomarcs), a record label, Bomarc Records, and a moderately successful Canadian pop group, The Beau Marks.
See also
References
Bibliography
* Clearwater, John. ''Canadian Nuclear Weapons: The Untold Story of Canada's Cold War Arsenal. Toronto, Ontario, Canada: Dundern Press, 1999. .
* Clearwater, John. U.S. Nuclear Weapons in Canada. Toronto, Ontario, Canada: Dundern Press, 1999. .
* Cornett, Lloyd H. Jr. and Mildred W. Johnson. A Handbook of Aerospace Defense Organization 1946–1980. Peterson Air Force Base, Colorado: Office of History, Aerospace Defense Center, 1980. No ISBN.
* Gibson, James N. Nuclear Weapons of the United States: An Illustrated History. Atglen, Pennsylvania: Schiffer Publishing Ltd., 1996. .
* Jenkins, Dennis R. and Tony R. Landis. Experimental & Prototype U.S. Air Force Jet Fighters. North Branch, Minnesota: Specialty Press, 2008. .
* Nicks, Don, John Bradley and Chris Charland. A History of the Air Defence of Canada 1948–1997. Ottawa, Ontario, Canada: Commander Fighter Group, 1997. .
* Pedigree of Champions: Boeing Since 1916, Third Edition. Seattle, Washington: The Boeing Company, 1969.
* Winkler, David F. Searching the Skies: The Legacy of the United States Cold War Defense Radar Program''. Langley Air Force Base, Virginia: United States Air Force Headquarters Air Combat Command, 1997. .
*
*
External links
* [https://web.archive.org/web/20100619012409/http://www.castlearchdale.net/id38.html RCAF 446 SAM Squadron]
* [http://www.radomes.org/museum/bomarc.html BOMARC Missile Sites]
* [https://web.archive.org/web/20061110073809/http://www.boeing.com/history/boeing/bomarc.html Boeing Company History, Bomarc]
* [https://web.archive.org/web/20130817173907/http://astronautix.com/lvs/bomarc.htm Astronautix.com]
* [http://www.radomes.org/museum/recent/McGuireAFBBOMARCNJ.html Bomarc pictures]
* [https://www.youtube.com/watch?v=BRhpjTj36A0 Bomarc Video Clip]
* [http://yarchive.net/risks/sage_bomarc.html SAGE-BOMARC risks] – Oral history: Les Earnest talks about air defense system called SAGE and a ground-to-air missile called BOMARC.
Category:Cold War surface-to-air missiles of the United States
Category:Nuclear anti-aircraft weapons
Category:Ramjet-powered missiles
Category:Nuclear weapons of Canada
Category:Nuclear weapons of the United States
Category:Military equipment introduced in the 1950s | https://en.wikipedia.org/wiki/CIM-10_Bomarc | 2025-04-05T18:26:41.801300 |
4132 | Branco River | | name_other | name_etymology
<!---------------------- IMAGE & MAP -->
| image = Rio Branco sul.JPG
| image_size = 300
| image_caption Branco River in Boa Vista city, Roraima state, Brazil. The Macuxi Bridge, long, can be seen in the background.
| map = Negroamazonrivermap.png
| map_size = 300
| map_caption = The Branco River is a tributary of the Rio Negro (highlighted on map)
| pushpin_map | pushpin_map_size 300
| pushpin_map_caption=
<!---------------------- LOCATION -->
| subdivision_type1 = Country
| subdivision_name1 =
| subdivision_type2 | subdivision_name2
| subdivision_type3 | subdivision_name3
| subdivision_type4 | subdivision_name4
| subdivision_type5 | subdivision_name5
<!---------------------- PHYSICAL CHARACTERISTICS -->
| length to
| width_min | width_avg
| width_max | depth_min
| depth_avg | depth_max
| discharge1_location=Confluence of Rio Negro, Roraima
| discharge1_min
| discharge1_avg (Period:1967-2010)
(Period: 1980-2006)
(Period: 1998-2022)
(Period: 1998-2022)
It is enriched by many streams from the Tepui highlands which separate Venezuela and Guyana from Brazil. Its two upper main tributaries are the Uraricoera and the Takutu. The latter almost links its sources with those of the Essequibo; during floods headwaters of the Branco and those of the Essequibo are connected, allowing a level of exchange in the aquatic fauna (such as fish) between the two systems.
The Branco flows nearly south, and finds its way into the Negro through several channels and a chain of lagoons similar to those of the latter river. It is long, up to its Uraricoera confluence. It has numerous islands, and, above its mouth, it is broken by a bad series of rapids.
Discharge
Average, minimum and maximum discharge of the Branco River at near mouth. Period from 1998 to 2022. It is traditionally considered a whitewater river, although the major seasonal fluctuations in its physico-chemical characteristics makes a classification difficult and some consider it clearwater. Especially the river's upper parts at the headwaters are clear and flow through rocky country, leading to the suggestion that sediments mainly originate from the lower parts. There is a visible contrast with the waters of the Rio Negro at the confluence of the two rivers. The Rio Negro is a blackwater river with dark tea-colored acidic water (pH 3.5–4.5) that contains high levels of dissolved organic carbon. Currently in the rainy season much of the Rupununi area floods, with water draining both to the Amazon (via the Branco River) and the Essequibo River.<ref nameQuinn2015/>CitationsNotesReferences
* [http://www.britannica.com/EBchecked/topic/77606/Branco-River Encyclopædia Britannica Online.com: "Branco River"] . retrieved 19 September 2009.
Category:Rivers of Roraima
Category:Tributaries of the Rio Negro (Amazon)
Category:Boa Vista, Roraima
Category:Guayana Highlands | https://en.wikipedia.org/wiki/Branco_River | 2025-04-05T18:26:41.814222 |
4146 | Bus | double-decker bus in London, United Kingdom]]
articulated bus in Ürümqi, China.]]
trolleybus in Toronto, Canada]]
A bus (contracted from omnibus, with variants multibus, motorbus, autobus, etc.) is a motor vehicle that carries significantly more passengers than an average car or van, but fewer than the average rail transport. It is most commonly used in public transport, but is also in use for charter purposes, or through private ownership. Although the average bus carries between 30 and 100 passengers, some buses have a capacity of up to 300 passengers. The most common type is the single-deck rigid bus, with double-decker and articulated buses carrying larger loads, and midibuses and minibuses carrying smaller loads. Coaches are used for longer-distance services. Many types of buses, such as city transit buses and inter-city coaches, charge a fare. Other types, such as elementary or secondary school buses or shuttle buses within a post-secondary education campus, are free. In many jurisdictions, bus drivers require a special large vehicle licence above and beyond a regular driving license.
Buses may be used for scheduled bus transport, scheduled coach transport, school transport, private hire, or tourism; promotional buses may be used for political campaigns and others are privately operated for a wide range of purposes, including rock and pop band tour vehicles.
Horse-drawn buses were used from the 1820s, followed by steam buses in the 1830s, and electric trolleybuses in 1882. The first internal combustion engine buses, or motor buses, were used in 1895. The theoretical full name is in French Nantes citizens soon gave the nickname "omnibus" to the vehicle.
History
<!-- That are horse coaches and not a bus
Early history
A short-lived early public bus line (known as a "carriage" at that time) was launched by Blaise Pascal in Paris in 1662; it was quite popular until fares were increased and access to the service was restricted to high-society members by regulation and law. Services ceased after 15 years and no further such services were known until the 1820s.First horse omnibus servesJohn Greenwood is said by some historians to have established the first modern omnibus service in 1824. As the keeper of a toll gate in Pendleton on the Manchester-to-Liverpool turnpike, he purchased a horse and a cart with several seats, and began an omnibus service between those two locations. His pioneering idea was to offer a service where, unlike with a stagecoach, no prior booking was necessary and the driver would pick up or set down passengers anywhere on request. Later on, he added daily services to Buxton, Chester, and Sheffield. His line immediately sparked fierce competition and a dense network of omnibus services quickly sprouted in the area, often acting as feeders to the railways. In 1865, Greenwood's company and its competitors amalgamated into the Manchester Carriage Company.
The Paris omnibus was started in 1828 by a businessman named Stanislas Baudry, who had begun the first French omnibus line in Nantes in 1826. The name was said to come from the station of the first line in Nantes, in front of the store of a hat-maker named Omnes, who had a large sign on his building saying "Omnes Omnibus" ("All for all" in Latin). Following success in Nantes, Baudry moved to Paris and founded the Enterprise des Omnibus on rue de Lancre, with workshops on the quai de Jemmapes. In 1827 he commissioned an English coach-maker, George Shillibeer, to design a vehicle that could be stable and carry a large number of passengers. Shillibeer's design worked, On 28 April 1828, the first Paris omnibus began service, running every fifteen minutes between La Madeleine and la Bastille. Before long, there were one hundred omnibuses in service, with eighteen different itineraries. A journey cost twenty-five centimes. The omnibuses circulated between seven in the morning and seven in the evening; each omnibus could carry between twelve and eighteen passengers. The busiest line was that along the Grand Boulevards; it ran from eight in the morning until midnight.
The Paris omnibus service was an immediate popular success, with more than two and a half million passengers in the first six months. However, there was no reliable way to collect money from the passengers, or the fare collectors kept much of the money for themselves; In its first years the company was continually on the verge of bankruptcy, and in despair, Baudry committed suicide in February 1830. Baudry's partners reorganized the company and managed to keep it in business.
In September 1828, a competing company, les Dames-Blanches, had started running its own vehicles. In 1829 and the following years, more companies with poetic names entered the business; les Citadines, les Tricycles, les Orléanises, les Diligentes, les Écossaises, les Béarnaises, les Carolines, les Batignollaises, les Parisiennes, les Hirondelles, les Joséphines, les Excellentes, les Sylphides, les Constantines, les Dames-Françaises, les Algériennes, les Dames-Réunies, and les Gazelles. The omnibus had a profound effect on Parisian life, making it possible for Parisians to work and have a social life outside their own neighborhoods.
By 1845, there were thirteen companies in Paris operating twenty-twenty three omnibus lines. In 1855, Napoleon III had them combined into a single company, the Compagnie générale des omnibus, with a monopoly on Paris public transportation. Beginning in 1873, they were gradually replaced by tramways, and, beginning in 1906, by the omnibus automobile, or motor bus. The last horse-drawn Paris omnibus ran on 11 January 1913, from Saint-Sulpice to La Villette.
Shillibeer built another bus for the Quaker Newington Academy for Girls near London; this had a total of 25 seats, and entered history as the first school bus.
Shillibeer saw the success of the Paris omnibus in service and concluded that operating similar vehicles in London, for the fare-paying public with multiple stops, would be a paying enterprise, so he returned to his native city. His first London "Omnibus", using the same design and name as the Paris vehicle, took up service on 4 July 1829 on the route between Paddington (The Yorkshire Stingo) and "Bank" (Bank of England) via the "New Road" (now Marylebone Rd), Somers Town and City Road. Four services were provided in each direction daily. Shillibeer's success prompted many competitors to enter the market, and for a time buses were referred to as 'Shillibeers'.
Although passenger-carrying carriages had operated for many years, the new 'omnibus' pioneered a new service of picking up and setting down customers all along a particular route without the need to book in advance. Buses soon expanded their capacity, with additional seats for a few extra passengers provided alongside the driver. By 1845, passengers were being accommodated on the curved roofs, seated back to back in a configuration known as 'knife-board'. In 1852, Greenwood's in Manchester introduced the double-decker vehicle that could seat up to 42.
In Germany, the first bus service was established in Berlin in 1825, running from Brandenburger Tor to Charlottenburg. In 1850, Thomas Tilling started horse bus services in London, and in 1855, the London General Omnibus Company was founded to amalgamate and regulate the horse-drawn omnibus services then operating in London.
By the 1880s, bus services were a commonplace in England, continental Europe, and North America; one company in London was operating over 220 horse-buses. Horse-bus use declined with the advent of steam-buses and motor-buses; the last horse bus in London stopped operation in 1914.
-->
Steam buses
's ''L'Obéissante'' (1875)]]
Regular intercity bus services by steam-powered buses were pioneered in England in the 1830s by Walter Hancock and by associates of Sir Goldsworthy Gurney, among others, running reliable services over road conditions which were too hazardous for horse-drawn transportation.
The first mechanically propelled omnibus appeared on the streets of London on 22 April 1833. Steam carriages were much less likely to overturn, they travelled faster than horse-drawn carriages, they were much cheaper to run, and caused much less damage to the road surface due to their wide tyres.
However, the heavy road tolls imposed by the turnpike trusts discouraged steam road vehicles and left the way clear for the horse bus companies, and from 1861 onwards, harsh legislation virtually eliminated mechanically propelled vehicles from the roads of Great Britain for 30 years, the Locomotive Act 1861 imposing restrictive speed limits on "road locomotives" of in towns and cities, and in the country.
Trolleybuses
In parallel to the development of the bus was the invention of the electric trolleybus, typically fed through trolley poles by overhead wires. The Siemens brothers, William in England and Ernst Werner in Germany, collaborated on the development of the trolleybus concept. Sir William first proposed the idea in an article to the Journal of the Society of Arts in 1881 as an "...arrangement by which an ordinary omnibus...would have a suspender thrown at intervals from one side of the street to the other, and two wires hanging from these suspenders; allowing contact rollers to run on these two wires, the current could be conveyed to the tram-car, and back again to the dynamo machine at the station, without the necessity of running upon rails at all."
The first such vehicle, the Electromote, was made by his brother Ernst Werner von Siemens and presented to the public in 1882 in Halensee, Germany. Although this experimental vehicle fulfilled all the technical criteria of a typical trolleybus, it was dismantled in the same year after the demonstration.
Max Schiemann opened a passenger-carrying trolleybus in 1901 near Dresden, in Germany. Although this system operated only until 1904, Schiemann had developed what is now the standard trolleybus current collection system. In the early days, a few other methods of current collection were used. Leeds and Bradford became the first cities to put trolleybuses into service in Great Britain on 20 June 1911.
Motor buses
In Siegerland, Germany, two passenger bus lines ran briefly, but unprofitably, in 1895 using a six-passenger motor carriage developed from the 1893 Benz Viktoria. The vehicle had a maximum speed of and accommodated up to 20 passengers, in an enclosed area below and on an open-air platform above. With the success and popularity of this bus, DMG expanded production, selling more buses to companies in London and, in 1899, to Stockholm and Speyer.
The Yellow Coach Manufacturing Company, which rapidly became a major manufacturer of buses in the US, was founded in Chicago in 1923 by John D. Hertz. General Motors purchased a majority stake in 1925 and changed its name to the Yellow Truck and Coach Manufacturing Company. GM purchased the balance of the shares in 1943 to form the GM Truck and Coach Division.
Models expanded in the 20th century, leading to the widespread introduction of the contemporary recognizable form of full-sized buses from the 1950s. The AEC Routemaster, developed in the 1950s, was a pioneering design and remains an icon of London to this day. The innovative design used lightweight aluminium and techniques developed in aircraft production during World War II. As well as a novel weight-saving integral design, it also introduced for the first time on a bus independent front suspension, power steering, a fully automatic gearbox, and power-hydraulic braking. Gallery <gallery mode"packed" heights="155px">
File:Erster Benzin-Omnibus der Welt.jpg|The first ever internal combustion omnibus, introduced in 1895 (Siegen to Netphen)
File:B43OleBillatIWMLondon.jpg|A 1911 LGOC B-type
File:Daimler CC Bus (1912).jpg|A 1912 Daimler CC Bus, one of five (English) Daimler Company buses exported to Australia
</gallery>
Types
in Los Angeles]]
Formats include single-decker bus, double-decker bus (both usually with a rigid chassis) and articulated bus (or 'bendy-bus') the prevalence of which varies from country to country. High-capacity bi-articulated buses are also manufactured, and passenger-carrying trailers—either towed behind a rigid bus (a bus trailer) or hauled as a trailer by a truck (a trailer bus). Smaller midibuses have a lower capacity and open-top buses are typically used for leisure purposes. In many new fleets, particularly in local transit systems, a shift to low-floor buses is occurring, primarily for easier accessibility. Coaches are designed for longer-distance travel and are typically fitted with individual high-backed reclining seats, seat belts, toilets, and audio-visual entertainment systems, and can operate at higher speeds with more capacity for luggage. Coaches may be single- or double-deckers, articulated, and often include a separate luggage compartment under the passenger floor. Guided buses are fitted with technology to allow them to run in designated guideways, allowing the controlled alignment at bus stops and less space taken up by guided lanes than conventional roads or bus lanes.
Bus manufacturing may be by a single company (an integral manufacturer), or by one manufacturer's building a bus body over a chassis produced by another manufacturer.
Design
Accessibility
high-floor bus with wheelchair ramp extended (2010)]]
Transit buses used to be mainly high-floor vehicles. However, they are now increasingly of low-floor design and optionally also 'kneel' air suspension and have ramps to provide access for wheelchair users and people with baby carriages, sometimes as electrically or hydraulically extended under-floor constructs for level access. Prior to more general use of such technology, these wheelchair users could only use specialist para-transit mobility buses.
Accessible vehicles also have wider entrances and interior gangways and space for wheelchairs. Interior fittings and destination displays may also be designed to be usable by the visually impaired. Coaches generally use wheelchair lifts instead of low-floor designs. In some countries, vehicles are required to have these features by disability discrimination laws.
Configuration
Buses were initially configured with an engine in the front and an entrance at the rear. With the transition to one-man operation, many manufacturers moved to mid- or rear-engined designs, with a single door at the front or multiple doors. The move to the low-floor design has all but eliminated the mid-engined design, although some coaches still have mid-mounted engines. Front-engined buses still persist for niche markets such as American school buses, some minibuses, and buses in less developed countries, which may be derived from truck chassis, rather than purpose-built bus designs. Most buses have two axles, while articulated buses have three.
Guidance
Guided buses are fitted with technology to allow them to run in designated guideways, allowing the controlled alignment at bus stops and less space taken up by guided lanes than conventional roads or bus lanes. Guidance can be mechanical, optical, or electromagnetic. <!-- explain abbr. Guidance is often, but not exclusively, employed as part of a BRT scheme. --> Extensions of the guided technology include the Guided Light Transit and Translohr systems, although these are more often termed 'rubber-tyred trams' as they have limited or no mobility away from their guideways.
Liveries
Transit buses are normally painted to identify the operator or a route, function, or to demarcate low-cost or premium service buses. Liveries may be painted onto the vehicle, applied using adhesive vinyl technologies, or using decals. Vehicles often also carry bus advertising or part or all of their visible surfaces (as mobile billboard). Campaign buses may be decorated with key campaign messages; these can be to promote an event or initiative.
Propulsion
The most common power source since the 1920s has been the diesel engine. Early buses, known as trolleybuses, were powered by electricity supplied from overhead lines. Nowadays, electric buses often carry their own battery, which is sometimes recharged on stops/stations to keep the size of the battery small/lightweight. Currently, interest exists in hybrid electric buses, fuel cell buses, electric buses, and ones powered by compressed natural gas or biodiesel. Gyrobuses, which are powered by the momentum stored by a flywheel, were tried in the 1940s.
Dimensions
United Kingdom and European Union:
: Maximum Length: Single rear axle . Twin rear axle .
: Maximum Width:
United States, Canada and Mexico:
: Maximum Length: None
: Maximum Width:
Manufacture
Early bus manufacturing grew out of carriage coach building, and later out of automobile or truck manufacturers. Early buses were merely a bus body fitted to a truck chassis. This body+chassis approach has continued with modern specialist manufacturers, although there also exist integral designs such as the Leyland National where the two are practically inseparable. Specialist builders also exist and concentrate on building buses for special uses or modifying standard buses into specialised products.
Integral designs have the advantages that they have been well-tested for strength and stability, and also are off-the-shelf. However, two incentives cause use of the chassis+body model. First, it allows the buyer and manufacturer both to shop for the best deal for their needs, rather than having to settle on one fixed design—the buyer can choose the body and the chassis separately. Second, over the lifetime of a vehicle (in constant service and heavy traffic), it will likely get minor damage now and again, and being able easily to replace a body panel or window etc. can vastly increase its service life and save the cost and inconvenience of removing it from service.
As with the rest of the automotive industry, into the 20th century, bus manufacturing increasingly became globalized, with manufacturers producing buses far from their intended market to exploit labour and material cost advantages. A typical city bus costs almost US$450,000.
Uses
Public transport
CNG-led Tata Marcopolo bus in Pune, India (2024)]]
Transit buses, used on public transport bus services, have utilitarian fittings designed for efficient movement of large numbers of people, and often have multiple doors. Coaches are used for longer-distance routes. High-capacity bus rapid transit services may use the bi-articulated bus or tram-style buses such as the Wright StreetCar and the Irisbus Civis.
Buses and coach services often operate to a predetermined published public transport timetable defining the route and the timing, but smaller vehicles may be used on more flexible demand responsive transport services.
Tourism
Buses play a major part in the tourism industry. Tour buses around the world allow tourists to view local attractions or scenery. These are often open-top buses, but can also be regular buses or coaches.
In local sightseeing, City Sightseeing is the largest operator of local tour buses, operating on a franchised basis all over the world. Specialist tour buses are also often owned and operated by safari parks and other theme parks or resorts. Longer-distance tours are also carried out by bus, either on a turn up and go basis or through a tour operator, and usually allow disembarkation from the bus to allow touring of sites of interest on foot. These may be day trips or longer excursions incorporating hotel stays. Tour buses often carry a tour guide, although the driver or a recorded audio commentary may also perform this function. The tour operator may be a subsidiary of a company that operates buses and coaches for other uses or an independent company that charters buses or coaches. Commuter transport operators may also use their coaches to conduct tours within the target city between the morning and evening commuter transport journey.
Buses and coaches are also a common component of the wider package holiday industry, providing private airport transfers (in addition to general airport buses) and organised tours and day trips for holidaymakers on the package.
Tour buses can also be hired as chartered buses by groups for sightseeing at popular holiday destinations. These private tour buses may offer specific stops, such as all the historical sights, or allow the customers to choose their own itineraries. Tour buses come with professional and informed staff and insurance, and maintain state governed safety standards. Some provide other facilities like entertainment units, luxurious reclining seats, large scenic windows, and even lavatories.
Public long-distance coach networks are also often used as a low-cost method of travel by students or young people travelling the world. Some companies such as Topdeck Travel were set up specifically to use buses to drive the hippie trail or travel to places such as North Africa.
In many tourist or travel destinations, a bus is part of the tourist attraction, such as the North American tourist trolleys, London's AEC Routemaster heritage routes, or the customised buses of Malta, Asia, and the Americas. Another example of tourist stops is the homes of celebrities, such as tours based near Hollywood. There are several such services between 6000 and 7000 Hollywood Boulevard in Los Angeles.
Student transport
(2007)]]In some countries, particularly the US and Canada, buses used to transport schoolchildren have evolved into a specific design with specified mandatory features. American states have also adopted laws regarding motorist conduct around school buses, including large fines and possibly prison for passing a stopped school bus in the process of loading or offloading children passengers. These school buses may have school bus yellow livery and crossing guards. Other countries may mandate the use of seat belts. As a minimum, many countries require a bus carrying students to display a sign, and may also adopt yellow liveries. Student transport often uses older buses cascaded from service use, retrofitted with more seats or seatbelts. Student transport may be operated by local authorities or private contractors. Schools may also own and operate their own buses for other transport needs, such as class field trips or transport to associated sports, music, or other school events.
Private charter
Due to the costs involved in owning, operating, and driving buses and coaches, much bus and coach use comes from the private hire of vehicles from charter bus companies, either for a day or two or on a longer contract basis, where the charter company provides the vehicles and qualified drivers.
(2018)]]
Charter bus operators may be completely independent businesses, or charter hire may be a subsidiary business of a public transport operator that might maintain a separate fleet or use surplus buses, coaches, and dual-purpose coach-seated buses. Many private taxicab companies also operate larger minibus vehicles to cater for group fares. Companies, private groups, and social clubs may hire buses or coaches as a cost-effective method of transporting a group to an event or site, such as a group meeting, racing event, or organised recreational activity such as a summer camp. Schools often hire charter bus services on a regular basis for transportation of children to and from their homes. Chartered buses are also used by education institutes for transport to conventions, exhibitions, and field trips. Entertainment or event companies may also hire temporary shuttles buses for transport at events such as festivals or conferences. Party buses are used by companies in a similar manner to limousine hire, for luxury private transport to social events or as a touring experience. Sleeper buses are used by bands or other organisations that tour between entertainment venues and require mobile rest and recreation facilities. Some couples hire preserved buses for their wedding transport, instead of the traditional car. Buses are often hired for parades or processions. Victory parades are often held for triumphant sports teams, who often tour their home town or city in an open-top bus. Sports teams may also contract out their transport to a team bus, for travel to away games, to a competition or to a final event. These buses are often specially decorated in a livery matching the team colours. Private companies often contract out private shuttle bus services, for transport of their customers or patrons, such as hotels, amusement parks, university campuses, or private airport transfer services. This shuttle usage can be as transport between locations, or to and from parking lots. High specification luxury coaches are often chartered by companies for executive or VIP transport. Charter buses may also be used in tourism and for promotion (See Tourism and Promotion sections).
Private ownership
Many organisations, including the police, not for profit, social or charitable groups with a regular need for group transport may find it practical or cost-effective to own and operate a bus for their own needs. These are often minibuses for practical, tax and driver licensing reasons, although they can also be full-size buses. Cadet or scout groups or other youth organizations may also own buses. Companies such as railroads, construction contractors, and agricultural firms may own buses to transport employees to and from remote job sites. Specific charities may exist to fund and operate bus transport, usually using specially modified mobility buses or otherwise accessible buses (See Accessibility section). Some use their contributions to buy vehicles and provide volunteer drivers.
Airport operators make use of special airside airport buses for crew and passenger transport in the secure airside parts of an airport. Some public authorities, police forces, and military forces make use of armoured buses where there is a special need to provide increased passenger protection. The United States Secret Service acquired two in 2010 for transporting dignitaries needing special protection. Police departments make use of police buses for a variety of reasons, such as prisoner transport, officer transport, temporary detention facilities, and as command and control vehicles. Some fire departments also use a converted bus as a command post while those in cold climates might retain a bus as a heated shelter at fire scenes. Many are drawn from retired school or service buses.Promotion
Buses are often used for advertising, political campaigning, public information campaigns, public relations, or promotional purposes. These may take the form of temporary charter hire of service buses, or the temporary or permanent conversion and operation of buses, usually of second-hand buses. Extreme examples include converting the bus with displays and decorations or awnings and fittings. Interiors may be fitted out for exhibition or information purposes with special equipment or audio visual devices.
Bus advertising takes many forms, often as interior and exterior adverts and all-over advertising liveries. The practice often extends into the exclusive private hire and use of a bus to promote a brand or product, appearing at large public events, or touring busy streets. The bus is sometimes staffed by promotions personnel, giving out free gifts. Campaign buses are often specially decorated for a political campaign or other social awareness information campaign, designed to bring a specific message to different areas, or used to transport campaign personnel to local areas/meetings. Exhibition buses are often sent to public events such as fairs and festivals for purposes such as recruitment campaigns, for example by private companies or the armed forces. Complex urban planning proposals may be organised into a mobile exhibition bus for the purposes of public consultation.
Goods transport
, Sweden (2005)]]
In some sparsely populated areas, it is common to use brucks, buses with a cargo area to transport both passengers and cargo at the same time. They are especially common in the Nordic countries.
Around the world
Historically, the types and features of buses have developed according to local needs. Buses were fitted with technology appropriate to the local climate or passenger needs, such as air conditioning in Asia, or cycle mounts on North American buses. The bus types in use around the world where there was little mass production were often sourced secondhand from other countries, such as the Malta bus, and buses in use in Africa. Other countries such as Cuba required novel solutions to import restrictions, with the creation of the "camellos" (camel bus), a specially manufactured trailer bus.
After the Second World War, manufacturers in Europe and the Far East, such as Mercedes-Benz buses and Mitsubishi Fuso expanded into other continents influencing the use of buses previously served by local types. Use of buses around the world has also been influenced by colonial associations or political alliances between countries. Several of the Commonwealth nations followed the British lead and sourced buses from British manufacturers, leading to a prevalence of double-decker buses. Several Eastern Bloc countries adopted trolleybus systems, and their manufacturers such as Trolza exported trolleybuses to other friendly states. In the 1930s, Italy designed the world's only triple decker bus for the busy route between Rome and Tivoli that could carry eighty-eight passengers. It was unique not only in being a triple decker but having a separate smoking compartment on the third level.
The buses to be found in countries around the world often reflect the quality of the local road network, with high-floor resilient truck-based designs prevalent in several less developed countries where buses are subject to tough operating conditions. Population density also has a major impact, where dense urbanisation such as in Japan and the far east has led to the adoption of high capacity long multi-axle buses, often double-deckers while South America and China are implementing large numbers of articulated buses for bus rapid transit schemes.
Bus expositions
Euro Bus Expo is a trade show, which is held biennially at the UK's National Exhibition Centre in Birmingham. As the official show of the Confederation of Passenger Transport, the UK's trade association for the bus, coach and light rail industry, the three-day event offers visitors from Europe and beyond the chance to see and experience the very latest vehicles and product and service innovations right across the industry.
Busworld Kortrijk in Kortrijk, Belgium, is the leading bus trade fair in Europe. It is also held biennially.
Use of retired buses
Most public or private buses and coaches, once they have reached the end of their service with one or more operators, are sent to the wrecking yard for breaking up for scrap and spare parts. Some buses which are not economical to keep running as service buses are often converted for use other than revenue-earning transport. Much like old cars and trucks, buses often pass through a dealership where they can be bought privately or at auction.
Bus operators often find it economical to convert retired buses to use as permanent training buses for driver training, rather than taking a regular service bus out of use. Some large operators have also converted retired buses into tow bus vehicles, to act as tow trucks. With the outsourcing of maintenance staff and facilities, the increase in company health and safety regulations, and the increasing curb weights of buses, many operators now contract their towing needs to a professional vehicle recovery company.
(2014)]]
Some buses that have reached the end of their service that are still in good condition are sent for export to other countries.
Some retired buses have been converted to static or mobile cafés, often using historic buses as a tourist attraction. There are also catering buses: buses converted into a mobile canteen and break room. These are commonly seen at external filming locations to feed the cast and crew, and at other large events to feed staff. Another use is as an emergency vehicle, such as high-capacity ambulance bus or mobile command centre.
Some organisations adapt and operate playbuses or learning buses to provide a playground or learning environments to children who might not have access to proper play areas. An ex-London AEC Routemaster bus has been converted to a mobile theatre and catwalk fashion show.
Some buses meet a destructive end by being entered in banger races or at demolition derbies. A larger number of old retired buses have also been converted into mobile holiday homes and campers.
Bus preservation
in Perth]]
Rather than being scrapped or converted for other uses, sometimes retired buses are saved for preservation. This can be done by individuals, volunteer preservation groups or charitable trusts, museums, or sometimes by the operators themselves as part of a heritage fleet. These buses often need to be restored to their original condition and will have their livery and other details such as internal notices and rollsigns restored to be authentic to a specific time in the bus's history. Some buses that undergo preservation are rescued from a state of great disrepair, but others enter preservation with very little wrong with them. As with other historic vehicles, many preserved buses either in a working or static state form part of the collections of transport museums. Additionally, some buses are preserved so they can appear alongside other period vehicles in television and film. Working buses will often be exhibited at rallies and events, and they are also used as charter buses. While many preserved buses are quite old or even vintage, in some cases relatively new examples of a bus type can enter restoration. In-service examples are still in use by other operators. This often happens when a change in design or operating practice, such as the switch to one person operation or low floor technology, renders some buses redundant while still relatively new.
Modification as railway vehicles
See also
* Charabanc
* Coach (bus)
* Bicycle carrier (bus mounted bike racks)
* Bus spotting
* Bus station
* Cutaway bus
* Dollar van
* Horsebus
* Intercity bus
* Intercity bus driver
* List of fictional buses
* Multi-axle bus
* Public light bus
* Trackless train
* Transit bus
* Transit Elevated Bus
References
Bibliography
*
*
*External links
* [http://www.buses.org American Bus Association] ()
Category:French inventions | https://en.wikipedia.org/wiki/Bus | 2025-04-05T18:26:41.856933 |
4147 | Bali | | image_shield | image_seal Coat of arms of Bali.svg
| image_flag = <!-- Flag was removed as per a consensus at WikiProject Indonesia -->
| shield_size = 75px
| flag_size | image_map Bali in Indonesia (special marker).svg
| map_alt | map_caption Bali in Indonesia}}
| coordinates
| coor_pinpoint | coordinates_footnotes
| subdivision_type = Country
| subdivision_name =
| established_title = Established
| established_date 14 August 1958
| founder | named_for
| seat_type = Capital<br />
| seat = Denpasar
| government_footnotes | governing_body Bali Provincial Government
| leader_title = Governor
| leader_name = I Wayan Koster<br/ >(PDI-P)
| leader_title2 = Vice Governor
| leader_name2 = I Nyoman Giri Prasta (PDI-P)
| unit_pref = Metric<!-- or US or UK -->
| area_total_km2 = 5590.15
| area_rank = 36th in Indonesia
| elevation_max_ft = 9944
| elevation_max_point = Mount Agung
| population_total = 4461260
| population_as_of = mid 2024 estimate
| population_footnotes
| population_density_km2 = auto
| demographics_type1 = Demographics
| demographics1_footnotes = <!-- for references: use
| timezone1 = WITA
| utc_offset1 = +08
| iso_code = ID-BA
| website =
| leader_title3 = Legislature
| leader_name3 = Bali Regional House of Representatives
| demographics1_info1 =
| demographics1_title2 Religion
| demographics1_info2
| demographics1_title3 Languages
| demographics1_info3
| nickname = <br />"Island of gods"
| motto = Bali Dwipa Jaya (Balinese)<br><br>"Glorious Bali Island"
| image_map1
| blank_name = GDP (nominal)
| blank_info = 2022
| blank1_name - Total
| blank1_info = Rp 245.2 trillion (19th)<br>US$ 16.5 billion<br>Int$ 51.5 billion (PPP)
| blank2_name - Per capita
| blank2_info = Rp 55.5 million (20th)<br>US$ 3,741<br>Int$ 11,673 (PPP)
| blank3_name - Growth
| blank3_info = 4.84%
| blank4_name = HDI (2024)
| blank4_info 0.786 (5th) – <span stylecolor:#00F900>high</span>
| module = (iii), (v), (vi)
| ID = 1194
| year = 2012
| area
| buffer_zone }}
| population_rank = 16th in Indonesia
}}
Bali (<small>English:</small>; Balinese: ) is a province of Indonesia and the westernmost of the Lesser Sunda Islands. East of Java and west of Lombok, the province includes the island of Bali and a few smaller offshore islands, notably Nusa Penida, Nusa Lembongan, and Nusa Ceningan to the southeast. The provincial capital, Denpasar, is the most populous city in the Lesser Sunda Islands and the second-largest, after Makassar, in Eastern Indonesia. Denpasar metropolitan area is the extended metropolitan area around Denpasar. The upland town of Ubud in Greater Denpasar is considered Bali's cultural centre. The province is Indonesia's main tourist destination, with a significant rise in tourism since the 1980s, and becoming an Indonesian area of overtourism. Tourism-related business makes up 80% of the Bali economy.
Bali is part of the Coral Triangle, the area with the highest biodiversity of marine species, in Coral Triangle, especially fish and turtles. In this area alone, over 500 reef-building coral species can be found. For comparison, this is about seven times as many as in the entire Caribbean. Bali is the home of the Subak irrigation system, a UNESCO World Heritage Site. It is also home to a unified confederation of kingdoms composed of 10 traditional royal Balinese houses, each house ruling a specific geographic area. The confederation is the successor of the Bali Kingdom. The royal houses, which originated before Dutch colonisation, are not recognised by the government of Indonesia. History Ancient
irrigation system, has existed since the 9th century.|left]]
Bali was inhabited around 2000 BC by Austronesian people who migrated originally from the island of Taiwan to Southeast Asia and Oceania through Maritime Southeast Asia.
Inscriptions from 896 and 911 do not mention a king, until 914, when Sri Kesarivarma is mentioned. They also reveal an independent Bali, with a distinct dialect, where Buddhism and Shaivism were practised simultaneously. Mpu Sindok's great-granddaughter, Mahendradatta (Gunapriyadharmapatni), married the Bali king Udayana Warmadewa (Dharmodayanavarmadeva) around 989, giving birth to Airlangga around 1001. This marriage also brought more Hinduism and Javanese culture to Bali. Princess Sakalendukirana appeared in 1098. Suradhipa reigned from 1115 to 1119, and Jayasakti from 1146 until 1150. Jayapangus appears on inscriptions between 1178 and 1181, while Adikuntiketana and his son Paramesvara in 1204.
Balinese culture was strongly influenced by Indian, Chinese, and particularly Hindu culture, beginning around the 1st century AD. The name Bali dwipa ("Bali island") has been discovered from various inscriptions, including the Blanjong pillar inscription written by Sri Kesari Warmadewa in 914 AD and mentioning Walidwipa. It was during this time that the people developed their complex irrigation system subak to grow rice in wet-field cultivation. Some religious and cultural traditions still practised today can be traced to this period.
The Hindu-Buddhist Majapahit Empire (1293–1520 AD) on eastern Java founded a Balinese colony in 1343. The uncle of Hayam Wuruk is mentioned in the charters of 1384–86. Mass Javanese immigration to Bali occurred in the next century when the Majapahit Empire fell in 1520. Portuguese contacts
The first known European contact with Bali is thought to have been made in 1512, when a Portuguese expedition led by Antonio Abreu and Francisco Serrão sighted its northern shores. It was the first expedition of a series of bi-annual fleets to the Moluccas, that throughout the 16th century travelled along the coasts of the Sunda Islands. Bali was also mapped in 1512, in the chart of Francisco Rodrigues, aboard the expedition. In 1585, a ship foundered off the Bukit Peninsula and left a few Portuguese in the service of Dewa Agung. Dutch East Indies
monument|left]]
In 1597, the Dutch merchant-explorer Cornelis de Houtman arrived at Bali, and the Dutch East India Company was established in 1602. The Dutch government expanded its control across the Indonesian archipelago during the second half of the 19th century. Dutch political and economic control over Bali began in the 1840s on the island's north coast when the Dutch pitted various competing Balinese realms against each other. </blockquote>
The Dutch mounted large naval and ground assaults at the Sanur region in 1906 and were met by the thousands of members of the royal family and their followers who rather than yield to the superior Dutch force committed ritual suicide (puputan) to avoid the humiliation of surrender. In the Dutch intervention in Bali, a similar mass suicide occurred in the face of a Dutch assault in Klungkung. Afterwards, the Dutch governours exercised administrative control over the island, but local control over religion and culture generally remained intact. Dutch rule over Bali came later and was never as well established as in other parts of Indonesia such as Java and Maluku.
In the 1930s, anthropologists Margaret Mead and Gregory Bateson, artists Miguel Covarrubias and Walter Spies, and musicologist Colin McPhee all spent time here. Their accounts of the island and its peoples created a western image of Bali as "an enchanted land of aesthetes at peace with themselves and nature". Western tourists began to visit the island. The sensuous image of Bali was enhanced in the West by a quasi-pornographic 1932 documentary Virgins of Bali about a day in the lives of two teenage Balinese girls whom the film's narrator Deane Dickason notes in the first scene "bathe their shamelessly nude bronze bodies". Under the looser version of the Hays code that existed up to 1934, nudity involving "civilised" (i.e. white) women was banned, but permitted with "uncivilised" (i.e. all non-white women), a loophole that was exploited by the producers of Virgins of Bali.
During the Japanese occupation, a Balinese military officer, I Gusti Ngurah Rai, formed a Balinese 'freedom army'. The harshness of Japanese occupation forces made them more resented than the Dutch colonial rulers.
Independence from the Dutch
In 1945, Bali was liberated by the British 5th infantry Division under the command of Major-General Robert Mansergh who took the Japanese surrender. Once Japanese forces had been repatriated the island was handed over to the Dutch the following year.
In 1946, the Dutch constituted Bali as one of the 13 administrative districts of the newly proclaimed State of East Indonesia, a rival state to the Republic of Indonesia, which was proclaimed and headed by Sukarno and Hatta. Bali was included in the "Republic of the United States of Indonesia" when the Netherlands recognised Indonesian independence on 29 December 1949. The first governor of Bali, Anak Agung Bagus Suteja, was appointed by President Sukarno in 1958, when Bali became a province.
Contemporary
memorial]]
The 1963 eruption of Mount Agung killed thousands, created economic havoc, and forced many displaced Balinese to be transmigrated to other parts of Indonesia. Mirroring the widening of social divisions across Indonesia in the 1950s and early 1960s, Bali saw conflict between supporters of the traditional caste system, and those rejecting this system. Politically, the opposition was represented by supporters of the Indonesian Communist Party (PKI) and the Indonesian Nationalist Party (PNI), with tensions and ill-feeling further increased by the PKI's land reform programmes.
On 15–16 November 2022, with the 2022 G20 Bali summit, the seventeenth meeting of the Group of Twenty (G20) was held in Nusa Dua.
Geography
The island of Bali lies east of Java, and is approximately 8 degrees south of the equator. Bali and Java are separated by the Bali Strait. East to west, the island is approximately wide and spans approximately north to south; administratively it covers , or excluding offshore Nusa Penida District, which comprises three small islands off the southeast coast of Bali. Its population density was roughly in mid 2024.
is the highest point of Bali.]]
Bali's central mountains include several peaks over in elevation and active volcanoes such as Mount Batur. The highest is Mount Agung (), known as the "mother mountain", which is an active volcano rated as one of the world's most likely sites for a massive eruption within the next 100 years. In late 2017 Mount Agung started erupting and large numbers of people were evacuated, temporarily closing the island's airport. Mountains range from centre to the eastern side, with Mount Agung the easternmost peak. Bali's volcanic nature has contributed to its exceptional fertility and its tall mountain ranges provide the high rainfall that supports the highly productive agriculture sector. South of the mountains is a broad, steadily descending area where most of Bali's large rice crop is grown. The northern side of the mountains slopes more steeply to the sea and is the main coffee-producing area of the island, along with rice, vegetables, and cattle. The longest river, Ayung River, flows approximately (see List of rivers of Bali).
The island is surrounded by coral reefs. Beaches in the south tend to have white sand while those in the north and west have black sand. Bali has no major waterways, although the Ho River is navigable by small sampan boats. Black sand beaches between Pasut and Klatingdukuh are being developed for tourism, but apart from the seaside temple of Tanah Lot, they are not yet used for significant tourism.
with Kelingking beach in the foreground]]
The largest city is the provincial capital, Denpasar, near the southern coast. Its population is around 755,600 (in mid 2024). Bali's second-largest city is the old colonial capital, Singaraja, which is located on the north coast and whose urban area is home to around 150,000 people in 2024. Other important cities include the beach resort, Kuta, which is practically part of Denpasar's urban area, and Ubud, situated at the north of Denpasar, is the island's cultural centre.
Three small islands lie to the immediate south-east and all are administratively part of the Klungkung regency of Bali: Nusa Penida, Nusa Lembongan and Nusa Ceningan. These islands are separated from Bali by the Badung Strait.
To the east, the Lombok Strait separates Bali from Lombok and marks the biogeographical division between the fauna of the Indomalayan realm and the distinctly different fauna of Australasia. The transition is known as the Wallace Line, named after Alfred Russel Wallace, who first proposed a transition zone between these two major biomes. When sea levels dropped during the Pleistocene ice age, Bali was connected to Java and Sumatra and to the mainland of Asia and shared the Asian fauna, but the deep water of the Lombok Strait continued to keep Lombok Island and the Lesser Sunda archipelago isolated.
Climate
Being just 8 degrees south of the equator, Bali has a fairly even climate all year round. Average year-round temperature stands at around with a humidity level of about 85%.
Daytime temperatures at low elevations vary between , but the temperatures decrease significantly with increasing elevation.
The west monsoon is in place from approximately October to April, and this can bring significant rain, particularly from December to March. During the rainy season, there are comparatively fewer tourists seen in Bali. During the Easter and Christmas holidays, the weather is very unpredictable. Outside of the monsoon period, humidity is relatively low and any rain is unlikely in lowland areas.
Flora and Fauna
, (Jalak Bali) is one of the protected birds located in West Bali National Park]]
in Uluwatu]]
]]
Bali lies just to the west of the Wallace Line, and thus has a fauna that is Asian in character, with very little Australasian influence, and has more in common with Java than with Lombok. An exception is the yellow-crested cockatoo, a member of a primarily Australasian family. There are around 280 species of birds, including the critically endangered Bali myna, which is endemic. Others include barn swallow, black-naped oriole, black racket-tailed treepie, crested serpent-eagle, crested treeswift, dollarbird, Java sparrow, lesser adjutant, long-tailed shrike, milky stork, Pacific swallow, red-rumped swallow, sacred kingfisher, sea eagle, woodswallow, savanna nightjar, stork-billed kingfisher, yellow-vented bulbul and great egret.
Until the early 20th century, Bali was possibly home to several large mammals: banteng, leopard and the endemic Bali tiger. The banteng still occurs in its domestic form, whereas leopards are found only in neighbouring Java, and the Bali tiger is extinct. The last definite record of a tiger on Bali dates from 1937 when one was shot, though the subspecies may have survived until the 1940s or 1950s. Pleistocene and Holocene megafaunas include banteng and giant tapir (based on speculations that they might have reached up to the Wallace Line), and rhinoceros.
Squirrels are quite commonly encountered, less often is the Asian palm civet, which is also kept in coffee farms to produce kopi luwak. Bats are well represented, perhaps the most famous place to encounter them remaining is the Goa Lawah (Temple of the Bats) where they are worshipped by the locals and also constitute a tourist attraction. They also occur in other cave temples, for instance at Gangga Beach. Two species of monkey occur. The crab-eating macaque, known locally as "kera", is quite common around human settlements and temples, where it becomes accustomed to being fed by humans, particularly in any of the three "monkey forest" temples, such as the popular one in the Ubud area. They are also quite often kept as pets by locals. The second monkey, endemic to Java and some surrounding islands such as Bali, is far rarer and more elusive and is the Javan langur, locally known as "lutung". They occur in a few places apart from the West Bali National Park. They are born an orange colour, though they would have already changed to a more blackish colouration by their first year. In Java, however, there is more of a tendency for this species to retain its juvenile orange colour into adulthood, and a mixture of black and orange monkeys can be seen together as a family. Other rarer mammals include the Sunda leopard cat, Sunda pangolin and black giant squirrel. Snakes include the king cobra and reticulated python. The water monitor can grow to at least in length and and can move quickly.
The rich coral reefs around the coast, particularly around popular diving spots such as Tulamben, Amed, Menjangan or neighbouring Nusa Penida, host a wide range of marine life, for instance hawksbill turtle, giant sunfish, giant manta ray, giant moray eel, bumphead parrotfish, hammerhead shark, reef shark, barracuda, and sea snakes. Dolphins are commonly encountered on the north coast near Singaraja and Lovina.
A team of scientists surveyed from 29 April 2011, to 11 May 2011, at 33 sea sites around Bali. They discovered 952 species of reef fish of which 8 were new discoveries at Pemuteran, Gilimanuk, Nusa Dua, Tulamben and Candidasa, and 393 coral species, including two new ones at Padangbai and between Padangbai and Amed. The average coverage level of healthy coral was 36% (better than in Raja Ampat and Halmahera by 29% or in Fakfak and Kaimana by 25%) with the highest coverage found in Gili Selang and Gili Mimpang in Candidasa, Karangasem Regency. Among the larger trees the most common are: banyan trees, jackfruit, coconuts, bamboo species, acacia trees and also endless rows of coconuts and banana species. Numerous flowers can be seen: hibiscus, frangipani, bougainvillea, poinsettia, oleander, jasmine, water lily, lotus, roses, begonias, orchids and hydrangeas exist. On higher grounds that receive more moisture, for instance, around Kintamani, certain species of fern trees, mushrooms and even pine trees thrive well. Rice comes in many varieties. Other plants with agricultural value include: salak, mangosteen, corn, Kintamani orange, coffee and water spinach. Environment
]]
in Bedugul]]
Over-exploitation by the tourist industry has led to 200 out of 400 rivers on the island drying up. Research suggests that the southern part of Bali would face a water shortage. To ease the shortage, the central government plans to build a water catchment and processing facility at Petanu River in Gianyar. The 300 litres capacity of water per second will be channelled to Denpasar, Badung and Gianyar in 2013.
A 2010 Environment Ministry report on its environmental quality index gave Bali a score of 99.65, which was the highest score of Indonesia's 33 provinces. The score considers the level of total suspended solids, dissolved oxygen, and chemical oxygen demand in water.
Erosion at Lebih Beach has seen of land lost every year. Decades ago, this beach was used for holy pilgrimages with more than 10,000 people, but they have now moved to Masceti Beach.
In 2017, a year when Bali received nearly 5.7 million tourists, government officials declared a "garbage emergency" in response to the covering of 3.6-mile stretch of coastline in plastic waste brought in by the tide, amid concerns that the pollution could dissuade visitors from returning. Indonesia is one of the world's worst plastic polluters, with some estimates suggesting the country is the source of around 10 per cent of the world's plastic waste.
Government
Politics
In the national legislature, Bali is represented by nine members, with a single electoral district covering the whole province. The Bali Regional House of Representatives, the provincial legislature, has 55 members. The province's politics has historically been dominated by the Indonesian Democratic Party of Struggle (PDI-P), which has won by far the most votes in every election in Bali since the first free elections in 1999. Administrative divisions
The province is divided into eight regencies (kabupaten) and one city (kota); all the regencies were originally inaugurated on 9 August 1958, while the city of Denpasar were created from part of Badung Regency on 15 January 1992. They are tabulated below with their areas and their populations at the 2010 census and the 2020 census, together with the official estimates as at mid 2024 and the Human Development Index for each regency and city.
{| class"wikitable sortable" style"margin-bottom: 0;"
|-
! Kode <br>Wilayah|| Name of <br>City or<br>Regency!! Capital !! Area<br /> in <br /> km<sup>2</sup> !! Pop'n <br /> 2000 <br />Census !! Pop'n <br /> 2010 <br />Census !! Pop'n <br /> 2020 <br />Census !! Pop'n <br /> mid 2024 <br />Estimate !! HDI<br />2023 estimate
|-
| 51.01 || Jembrana Regency || Negara ||align"right"| ||align"right"| ||align"right"| ||align"right"| ||align="right"| || 0.740 ()
|-
| 51.02 || Tabanan Regency || Tabanan ||align"right"| ||align"right"| ||align"right"| ||align"right"| ||align="right"| || 0.774 ()
|-
| 51.03 || Badung Regency || Mangupura ||align"right"| ||align"right"| ||align"right"| ||align"right"| ||align="right"| || 0.831 ()
|-
| 51.04 || Gianyar Regency || Gianyar ||align"right"| ||align"right"| ||align"right"| ||align"right"| ||align="right"| || 0.792 ()
|-
| 51.05 || Klungkung Regency || Semarapura ||align"right"| ||align"right"| ||align"right"| ||align"right"| ||align="right"| || 0.731 ()
|-
| 51.06 || Bangli Regency || Bangli ||align"right"| ||align"right"| ||align"right"| ||align"right"| ||align="right"| || 0.708 ()
|-
| 51.07 || Karangasem Regency || Amlapura ||align"right"| ||align"right"| ||align"right"| ||align"right"| ||align="right"| || 0.689 ()
|-
| 51.08 || Buleleng Regency || Singaraja ||align"right"| ||align"right"| ||align"right"| ||align"right"| ||align="right"| || 0.740 ()
|-
| 51.71 || Denpasar City || Denpasar ||align"right"| ||align"right"| ||align"right"| ||align"right"| ||align="right"| || 0.847 ()
|-
| || Totals || ||align"right"| ||align"right"| ||align"right"| ||align"right"| ||align="right"| || 0.771 ()
|-
|}
The province forms one of Indonesia's 84 national electoral districts to elect members to the People's Representative Council. The Bali Electoral District consists of all of the 8 regencies in the province, together with the city of Denpasar, and elects 9 members to the People's Representative Council.
Economy
In the 1970s, the Balinese economy was largely agriculture-based in terms of both output and employment. Tourism is now the largest single industry in terms of income, and as a result, Bali is one of Indonesia's wealthiest regions. In 2003, around 80% of Bali's economy was tourism related. By the end of June 2011, the rate of non-performing loans of all banks in Bali were 2.23%, lower than the average of Indonesian banking industry non-performing loan rates (about 5%). The economy, however, suffered significantly as a result of the terrorist bombings in 2002 and 2005. The tourism industry has since recovered from these events.
Agriculture
]]
Although tourism produces the GDP's largest output, agriculture is still the island's biggest employer. Fishing also provides a significant number of jobs. Bali is also famous for its artisans who produce a vast array of handicrafts, including batik and ikat cloth and clothing, wooden carvings, stone carvings, painted art and silverware. Notably, individual villages typically adopt a single product, such as wind chimes or wooden furniture.
The Arabica coffee production region is the highland region of Kintamani near Mount Batur. Generally, Balinese coffee is processed using the wet method. This results in a sweet, soft coffee with good consistency. Typical flavours include lemon and other citrus notes. Many coffee farmers in Kintamani are members of a traditional farming system called Subak Abian, which is based on the Hindu philosophy of "Tri Hita Karana". According to this philosophy, the three causes of happiness are good relations with God, other people, and the environment. The Subak Abian system is ideally suited to the production of fair trade and organic coffee production. Arabica coffee from Kintamani is the first product in Indonesia to request a geographical indication. Tourism {| class"wikitable plainrowheaders floatright"
|+ Number of tourists by nationality
|-
!scope=col|No.
!scope=col|Country
!scope=col|Tourists
|-
|align=center|1
|align=left|
|align=center|1,225,425
|-
|align=center|2
|align=left|
|align=center|1,185,764
|-
|align=center|3
|align=left|
|align=center|371,850
|-
|align=center|4
|align=left|
|align=center|283,539
|-
|align=center|5
|align=left|
|align=center|273,317
|-
|align=center|6
|align=left|
|align=center|257,897
|-
|align=center|7
|align=left|
|align=center|213,324
|-
|align=center|8
|align=left|
|align=center|206,814
|-
|align=center|9
|align=left|
|align=center|194,773
|-
|align=center|10
|align=left|
|align=center|184,477
|-
| colspan"3" style"border-bottom: none; border-left: none; border-right: none; font-size:80%; text-align:center"|As of 2019
|}
is a popular tourist spot.]]
procession on the eve of Nyepi'']]
In 1963 the Bali Beach Hotel in Sanur was built by Sukarno and boosted tourism in Bali. Before the Bali Beach Hotel construction, there were only three significant tourist-class hotels on the island. Construction of hotels and restaurants began to spread throughout Bali. Tourism further increased in Bali after the Ngurah Rai International Airport opened in 1970. The Buleleng regency government encouraged the tourism sector as one of the mainstays for economic progress and social welfare.
The tourism industry is primarily focused in the south, while also significant in the other parts of the island. The prominent tourist locations are the town of Kuta (with its beach), and its outer suburbs of Legian and Seminyak (which were once independent townships), the east coast town of Sanur (once the only tourist hub), Ubud towards the centre of the island, to the south of the Ngurah Rai International Airport, Jimbaran and the newer developments of Nusa Dua and Pecatu.
The United States government lifted its travel warnings in 2008. The Australian government issued an advisory on Friday, 4 May 2012, with the overall level of this advisory lowered to 'Exercise a high degree of caution'. The Swedish government issued a new warning on Sunday, 10 June 2012, because of one tourist who died from methanol poisoning. Australia last issued an advisory on Monday, 5 January 2015, due to new terrorist threats.
An offshoot of tourism is the growing real estate industry. Bali's real estate has been rapidly developing in the main tourist areas of Kuta, Legian, Seminyak, and Oberoi. Most recently, high-end 5-star projects are under development on the Bukit peninsula, on the island's south side. Expensive villas are being developed along the cliff sides of south Bali, with commanding panoramic ocean views. Foreign and domestic, many Jakarta individuals and companies are fairly active, and investment into other areas of the island also continues to grow. Land prices, despite the worldwide economic crisis, have remained stable.
In the last half of 2008, Indonesia's currency had dropped approximately 30% against the US dollar, providing many overseas visitors with improved value for their currencies.
Bali's tourism economy survived the terrorist bombings of 2002 and 2005, and the tourism industry has slowly recovered and surpassed its pre-terrorist bombing levels; the long-term trend has been a steady increase in visitor arrivals. In 2010, Bali received 2.57 million foreign tourists, which surpassed the target of 2.0–2.3 million tourists. The average occupancy of starred hotels achieved 65%, so the island still should be able to accommodate tourists for some years without any addition of new rooms/hotels, although at the peak season some of them are fully booked.
Bali received the Best Island award from Travel and Leisure in 2010. Bali won because of its attractive surroundings (both mountain and coastal areas), diverse tourist attractions, excellent international and local restaurants, and the friendliness of the local people. The Balinese culture and its religion are also considered the main factor of the award. One of the most prestigious events that symbolize a strong relationship between a god and its followers is Kecak dance. According to BBC Travel released in 2011, Bali is one of the World's Best Islands, ranking second after Santorini, Greece.
In 2006, Elizabeth Gilbert's memoir Eat, Pray, Love was published, and in August 2010 it was adapted into the film Eat Pray Love. It took place at Ubud and Padang-Padang Beach in Bali. Both the book and the film fuelled a boom in tourism in Ubud, the hill town and cultural and tourist centre that was the focus of Gilbert's quest for balance and love through traditional spirituality and healing.
In January 2016, after musician David Bowie died, it was revealed that in his will, Bowie asked for his ashes to be scattered in Bali, conforming to Buddhist rituals. He had visited and performed in several Southeast Asian cities early in his career, including Bangkok and Singapore.
Since 2011, China has displaced Japan as the second-largest supplier of tourists to Bali, while Australia still tops the list while India has also emerged as a greater supply of tourists.
Chinese tourists increased by 17% in 2011 from 2010 due to the impact of ACFTA and new direct flights to Bali.
In January 2012, Chinese tourists increased by 222.18% compared to January 2011, while Japanese tourists declined by 23.54% year on year.
Bali authorities reported the island had 2.88 million foreign tourists and 5 million domestic tourists in 2012, marginally surpassing the expectations of 2.8 million foreign tourists.
Based on a Bank Indonesia survey in May 2013, 34.39 per cent of tourists are upper-middle class, spending between $1,286 and $5,592, and are dominated by Australia, India, France, China, Germany and the UK. Some Chinese tourists have increased their levels of spending from previous years. 30.26 per cent of tourists are middle class, spending between $662 and $1,285. In 2017 it was expected that Chinese tourists would outnumber Australian tourists.
In January 2020, 10,000 Chinese tourists cancelled trips to Bali due to the COVID-19 pandemic. Because of the COVID-19 pandemic travel restrictions, Bali welcomed 1.07 million international travelers in 2020, most of them between January and March, which is -87% compared to 2019. In the first half of 2021, they welcomed 43 international travelers. The pandemic presented a major blow on Bali's tourism-dependent economy. On 3 February 2022, Bali reopened again for the first foreign tourists after 2 years of being closed due to the pandemic.
In 2022 Indonesia's Minister of Health, Budi Sadikin, stated that the tourism industry in Bali will be complemented by the medical industry.
At the beginning of 2023, the governor of Bali demanded a ban on the use of motorcycles by tourists. This happened after a series of accidents. Wayan Koster proposed to cancel the violators' visas. The move sparked widespread outrage on social media.
Transportation
]]
The Ngurah Rai International Airport is located near Jimbaran, on the isthmus at the southernmost part of the island. Lt. Col. Wisnu Airfield is in northwest Bali.
A coastal road circles the island, and three major two-lane arteries cross the central mountains at passes reaching 1,750 m in height (at Penelokan). The Ngurah Rai Bypass is a four-lane expressway that partly encircles Denpasar. Bali has no railway lines. There is a car ferry between Gilimanuk on the west coast of Bali to Ketapang on Java.
In December 2010 the Government of Indonesia invited investors to build a new Tanah Ampo Cruise Terminal at Karangasem, Bali with a projected worth of $30 million. On 17 July 2011, the first cruise ship (Sun Princess) anchored about away from the wharf of Tanah Ampo harbour. The current pier is only but will eventually be extended to to accommodate international cruise ships. The harbour is safer than the existing facility at Benoa and has a scenic backdrop of east Bali mountains and green rice fields. The tender for improvement was subject to delays, and as of July 2013 the situation was unclear with cruise line operators complaining and even refusing to use the existing facility at Tanah Ampo.
bus]]
A memorandum of understanding was signed by two ministers, Bali's governor and Indonesian Train Company to build of railway along the coast around the island. As of July 2015, no details of these proposed railways have been released. In 2019 it was reported in Gapura Bali that Wayan Koster, governor of Bali, "is keen to improve Bali's transportation infrastructure and is considering plans to build an electric rail network across the island".
On 16 March 2011 (Tanjung) Benoa port received the "Best Port Welcome 2010" award from London's "Dream World Cruise Destination" magazine. Government plans to expand the role of Benoa port as export-import port to boost Bali's trade and industry sector. In 2013, The Tourism and Creative Economy Ministry advised that 306 cruise liners were scheduled to visit Indonesia, an increase of 43 per cent compared to the previous year.
In May 2011, an integrated Area Traffic Control System (ATCS) was implemented to reduce traffic jams at four crossing points: Ngurah Rai statue, Dewa Ruci Kuta crossing, Jimbaran crossing and Sanur crossing. ATCS is an integrated system connecting all traffic lights, CCTVs and other traffic signals with a monitoring office at the police headquarters. It has successfully been implemented in other ASEAN countries and will be implemented at other crossings in Bali.
view above the sea]]
On 21 December 2011, construction started on the Nusa Dua-Benoa-Ngurah Rai International Airport toll road, which will also provide a special lane for motorcycles. This has been done by seven state-owned enterprises led by PT Jasa Marga with 60% of the shares. PT Jasa Marga Bali Tol will construct the toll road (totally with access road). The construction is estimated to cost Rp.2.49 trillion ($273.9 million). The project goes through of mangrove forest and through of beach, both within area. The elevated toll road is built over the mangrove forest on 18,000 concrete pillars that occupied two hectares of mangrove forest. This was compensated by the planting of 300,000 mangrove trees along the road. On 21 December 2011, the Dewa Ruci underpass has also started on the busy Dewa Ruci junction near Bali Kuta Galeria with an estimated cost of Rp136 billion ($14.9 million) from the state budget. On 23 September 2013, the Bali Mandara Toll Road was opened, with the Dewa Ruci Junction underpass being opened previously.
To solve chronic traffic problems, the province will also build a toll road connecting Serangan with Tohpati, a toll road connecting Kuta, Denpasar, and Tohpati, and a flyover connecting Kuta and Ngurah Rai Airport. Demographics
family after performing puja in a temple]]
The population of Bali was 3,890,757 as of the 2010 census, and 4,317,404 at the 2020 census; the official estimate as at mid 2024 was 4,461,260 (comprising 2,222,440 males and 2,210,820 females). In 2021, the Indonesian Ministry of Tourism estimated that there were 109,801 foreigners living on Bali, with most originating from Russia, the US, Australia, the UK, Germany, Japan, France, Italy, and the Netherlands.
Ethnic origins
A DNA study in 2005 by Karafet et al. found that 12% of Balinese Y-chromosomes are of likely Austroasiasic origin, while 84% are of likely Austronesian origin, and 2% of likely Melanesian origin. Caste system
Pre-modern Bali had four castes, as Jeff Lewis and Belinda Lewis state, but with a "very strong tradition of communal decision-making and interdependence". The four castes have been classified as Sudra (Shudra), Wesia (Vaishyas), Satria (Kshatriyas) and Brahmana (Brahmin).
The 19th-century scholars such as Crawfurd and Friederich suggested that the Balinese caste system had Indian origins, but Helen Creese states that scholars such as Brumund who had visited and stayed on the island of Bali suggested that his field observations conflicted with the "received understandings concerning its Indian origins". In Bali, the Shudra (locally spelt Soedra) has typically been the temple priests, though depending on the demographics, a temple priest may also be from the other three castes.
Religion
About 87.91% of Bali's population adheres to Balinese Hinduism, formed as a combination of existing local beliefs and Hindu influences from mainland Southeast Asia and South Asia. Minority religions include Islam (8.10%), Christianity (3.30%), and Buddhism (0.68%) as for 2022.]]
The general beliefs and practices of Agama Hindu Dharma mix ancient traditions and contemporary pressures placed by Indonesian laws that permit only monotheist belief under the national ideology of Pancasila. Traditionally, Hinduism in Indonesia had a pantheon of deities and that tradition of belief continues in practice; further, Hinduism in Indonesia granted freedom and flexibility to Hindus as to when, how and where to pray. Indonesian school textbooks describe Hinduism as having one supreme being, Hindus offering three daily mandatory prayers, and Hinduism as having certain common beliefs that in part parallel those of Islam. Some scholars contest whether these Indonesian government recognised and assigned beliefs to reflect the traditional beliefs and practices of Hindus in Indonesia before Indonesia gained independence from Dutch colonial rule.
Balinese Hinduism has roots in Indian Hinduism and Buddhism, which arrived through Java. Hindu influences reached the Indonesian Archipelago as early as the first century. Historical evidence is unclear about the diffusion process of cultural and spiritual ideas from India. Java legends refer to Saka-era, traced to 78 AD. Stories from the Mahabharata Epic have been traced in Indonesian islands to the 1st century; however, the versions mirror those found in the southeast Indian peninsular region (now Tamil Nadu and southern Karnataka and Andhra Pradesh).
Apart from the majority of Balinese Hindus, there also exist Chinese immigrants whose traditions have melded with that of the locals. As a result, these Sino-Balinese embrace their original religion, which is a mixture of Buddhism, Christianity, Taoism, and Confucianism, and find a way to harmonise it with the local traditions. Hence, it is not uncommon to find local Sino-Balinese during the local temple's odalan. Moreover, Balinese Hindu priests are invited to perform rites alongside a Chinese priest in the event of the death of a Sino-Balinese. Nevertheless, the Sino-Balinese claim to embrace Buddhism for administrative purposes, such as their Identity Cards. The Roman Catholic community has a diocese, the Diocese of Denpasar that encompasses the province of Bali and West Nusa Tenggara and has its cathedral located in Denpasar.
<gallery class="center">
File:Pura Penataran Lempuyang Bali 492102459.jpg|Penataran Lempuyang Temple, Gunung Lempuyang, Bali
File:DenpasarSt.JosephChurch.JPG|Saint Joseph's Church, Denpasar
File:Chinese temple, Bali.jpg|Ling Sii Miao Buddhist Temple, Denpasar
File:Kuta Bali Indonesia Masjid-Agung-Ibnu-Batutah-02.jpg|Ibnu Batutah Mosque, Kuta
</gallery>
Language
]]
Balinese and Indonesian are the most widely spoken languages in Bali, and the vast majority of Balinese people are bilingual or trilingual. The most common spoken language around the tourist areas is Indonesian, as many people in the tourist sector are not solely Balinese, but migrants from Java, Lombok, Sumatra, and other parts of Indonesia. The Balinese language is heavily stratified due to the Balinese caste system. Kawi and Sanskrit are also commonly used by some Hindu priests in Bali, as Hindu literature was mostly written in Sanskrit.
English and Chinese are the next most common languages (and the primary foreign languages) of many Balinese, owing to the requirements of the tourism industry, as well as the English-speaking community and huge Chinese-Indonesian population. Other foreign languages, such as Japanese, Korean, French, Russian or German are often used in multilingual signs for foreign tourists.
Culture
]]
dance]]
ceremony in Nusa Penida]]Bali is renowned for its diverse and sophisticated art forms, such as painting, sculpture, woodcarving, handcrafts, and performing arts. Balinese cuisine is also distinctive, and unlike the rest of Indonesia, pork is commonly found in Balinese dishes such as Babi Guling. Balinese percussion orchestra music, known as gamelan, is highly developed and varied. Balinese performing arts often portray stories from Hindu epics such as the Ramayana but with heavy Balinese influence. Famous Balinese dances include pendet, legong, baris, topeng, barong, gong kebyar, and kecak (the monkey dance). Bali boasts one of the most diverse and innovative performing arts cultures in the world, with paid performances at thousands of temple festivals, private ceremonies, and public shows.
In 2018 Governor I Wayan Koster issued Bali Governor's Regulation No. 79 of 2018 which mandated that city officials wear traditional Balinese dress, such as that made of songket. This was followed by Circular No. 4 of 2021 which specified the use of Endek fabrics, and was expanded to high-ranking individuals in the private sector and other institutions.
Architecture
Kaja and kelod are the Balinese equivalents of North and South, which refer to one's orientation between the island's largest mountain Gunung Agung (kaja), and the sea (kelod). In addition to spatial orientation, kaja and kelod have the connotation of good and evil; gods and ancestors are believed to live on the mountain whereas demons live in the sea. Buildings such as temples and residential homes are spatially oriented by having the most sacred spaces closest to the mountain and the unclean places nearest to the sea.
Most temples have an inner courtyard and an outer courtyard which are arranged with the inner courtyard furthest kaja. These spaces serve as performance venues since most Balinese rituals are accompanied by any combination of music, dance, and drama. The performances that take place in the inner courtyard are classified as wali, the most sacred rituals which are offerings exclusively for the gods, while the outer courtyard is where bebali ceremonies are held, which are intended for gods and people. Lastly, performances meant solely for the entertainment of humans take place outside the temple's walls and are called bali-balihan. This three-tiered system of classification was standardised in 1971 by a committee of Balinese officials and artists to better protect the sanctity of the oldest and most sacred Balinese rituals from being performed for a paying audience.
Dances
Tourism, Bali's chief industry, has provided the island with a foreign audience that is eager to pay for entertainment, thus creating new performance opportunities and more demand for performers. The impact of tourism is controversial since before it became integrated into the economy, the Balinese performing arts did not exist as a capitalist venture, and were not performed for entertainment outside of their respective ritual context. Since the 1930s sacred rituals such as the barong dance have been performed both in their original contexts, as well as exclusively for paying tourists. This has led to new versions of many of these performances that have developed according to the preferences of foreign audiences; some villages have a barong mask specifically for non-ritual performances and an older mask that is only used for sacred performances. The Hindu New Year, Nyepi, is celebrated in the spring by a day of silence. On this day everyone stays at home and tourists are encouraged (or required) to remain in their hotels. On the day before New Year, large and colourful sculptures of Ogoh-ogoh monsters are paraded and burned in the evening to drive away evil spirits. Other festivals throughout the year are specified by the Balinese pawukon calendrical system.
Celebrations are held for many occasions such as a tooth-filing (coming-of-age ritual), cremation or odalan (temple festival). One of the most important concepts that Balinese ceremonies have in common is that of désa kala patra, which refers to how ritual performances must be appropriate in both the specific and general social context.
Tradition
Balinese society continues to revolve around each family's ancestral village, to which the cycle of life and religion is closely tied. Coercive aspects of traditional society, such as customary law sanctions imposed by traditional authorities such as village councils (including "kasepekang", or shunning) have risen in importance as a consequence of the democratisation and decentralisation of Indonesia since 1998.
One unusual tradition is the naming of children in Bali. In general, Balinese people name their children depending on the order they are born, and the names are the same for both males and females.
Beauty pageant
Bali was the host of Miss World 2013 (63rd edition of the Miss World pageant). It was the first time Indonesia hosted an international beauty pageant. In 2022, Bali also co-hosted Miss Grand International 2022 along with Jakarta, West Java, and Banten.
Sports
, the home of Bali United F.C.]]
Bali is a major world surfing destination with popular breaks dotted across the southern coastline and around the offshore island of Nusa Lembongan.
As part of the Coral Triangle, Bali, including Nusa Penida, offers a wide range of dive sites with varying types of reefs, and tropical aquatic life.
Bali was the host of 2008 Asian Beach Games. It was the second time Indonesia hosted an Asia-level multi-sport event, after Jakarta held the 1962 Asian Games.
In 2023, Bali was the location for a major eSports event, the Dota 2 Bali Major, the third and final Major of the Dota Pro Circuit season. The event was held at the Ayana Estate and the Champa Garden, and it was the first time that a Dota Pro Circuit Major was held in Indonesia.
In football, Bali is home to Bali United football club, which plays in Liga 1.
The team was relocated from Samarinda, East Kalimantan to Gianyar, Bali. Harbiansyah Hanafiah, the main commissioner of Bali United explained that he changed the name and moved the home base because there was no representative from Bali in the highest football tier in Indonesia. Another reason was due to local fans in Samarinda preferring to support Pusamania Borneo F.C. rather than Persisam.
Heritage sites
In June 2012, Subak, the irrigation system for paddy fields in Jatiluwih, central Bali was listed as a Natural UNESCO World Heritage Site.
See also
* Culture of Indonesia
*Hinduism in Indonesia
*Tourism in Indonesia
References
Bibliography
*
*
*
*
*
Further reading
*
*
* Cotterell, Arthur (2015). Bali: A cultural history, Signal Books
* Covarrubias, Miguel (1946). Island of Bali.
*
*
*
*
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* External links
*
*
*
Category:1958 establishments in Indonesia
Category:Hinduism in Indonesia
Category:Islands of Indonesia
Category:Lesser Sunda Islands
Category:Provinces of Indonesia
Category:States and territories established in 1958
Category:Former kingdoms
Category:Populated places in Indonesia | https://en.wikipedia.org/wiki/Bali | 2025-04-05T18:26:41.914449 |
4149 | Bulgarian language | | image | pronunciation
| states =
| ethnicity = Bulgarians
| speakers = L1: 7.6 million in Bulgaria
| date = 2011 census
| ref
| speakers_label = Speakers
| familycolor = Indo-European
| fam2 = Balto-Slavic
| fam3 = Slavic
| fam4 = South Slavic
| fam5 = Eastern South Slavic
| ancestor = Proto-Indo-European
| ancestor2 = Proto-Balto-Slavic
| ancestor3 = Proto-Slavic
| ancestor4 = Old Bulgarian
| ancestor5 = Middle Bulgarian
| dia1 = Eastern Bulgarian
| script =
| nation =
| minority =
| agency = Institute for Bulgarian Language, Bulgarian Academy of Sciences
| iso1 = bg
| iso2 = bul
| iso3 = bul
| glotto = bulg1262
| glottorefname = Bulgarian
| lingua = 53-AAA-hb < 53-AAA-h
| map = Distribution of Bulgarian Speakers.png
| mapcaption The Bulgarian-speaking world:
| notice = IPA
| dia2 = Balkan<br>
Rup<br>Moesian
| dia3 = Western Bulgarian
| dia4 = Northwestern<br>Southwestern<br>Transitional
}}
Bulgarian (, ; , ) is an Eastern South Slavic language spoken in Southeast Europe, primarily in Bulgaria. It is the language of the Bulgarians.
Along with the closely related Macedonian language (collectively forming the East South Slavic languages), it is a member of the Balkan sprachbund and South Slavic dialect continuum of the Indo-European language family. The two languages have several characteristics that set them apart from all other Slavic languages, including the elimination of case declension, the development of a suffixed definite article, and the lack of a verb infinitive. They retain and have further developed the Proto-Slavic verb system (albeit analytically). One such major development is the innovation of evidential verb forms to encode for the source of information: witnessed, inferred, or reported.
It is the official language of Bulgaria, and since 2007 has been among the official languages of the European Union. It is also spoken by the Bulgarian historical communities in North Macedonia, Ukraine, Moldova, Serbia, Romania, Hungary, Albania and Greece.History
One can divide the development of the Bulgarian language into several periods.
* The Prehistoric period covers the time between the Slavic migration to the eastern Balkans ( 6th century CE) and the mission of Saints Cyril and Methodius to Great Moravia in 860s.
* Old Church Slavonic (9th to 11th centuries) a literary norm of the early southern dialect of the Proto-Slavic language from which Bulgarian evolved, also referred to as Old Bulgarian. Saints Cyril and Methodius and their disciples used this norm when translating the Bible and other liturgical literature from Greek into Slavic.
* Middle Bulgarian (12th to 15th centuries) – a literary norm that evolved from the earlier Old Bulgarian, after major innovations occurred. A language of rich literary activity, it served as an official administration language of the Second Bulgarian Empire, Walachia, Moldavia (until the 19th century) and an important language in the Ottoman Empire. Sultan Selim I spoke and used it well.
* Modern Bulgarian dates from the 16th century onwards, undergoing general grammar and syntax changes in the 18th and 19th centuries. The present-day written Bulgarian language was standardized on the basis of the 19th-century Bulgarian vernacular. The historical development of the Bulgarian language can be described as a transition from a highly synthetic language (Old Bulgarian) to a fusional inflecting synthetic language with some analyticity (Modern Bulgarian) with Middle Bulgarian as a midpoint in this transition.
is one of the oldest manuscripts in the Old Bulgarian language, dated from the late 10th or early 11th century]]
Bulgarian was the first Slavic language attested in writing. As Slavic linguistic unity lasted into late antiquity, the oldest manuscripts initially referred to this language as ѧзꙑкъ словѣньскъ, "the Slavic language". In the Middle Bulgarian period this name was gradually replaced by the name ѧзꙑкъ блъгарьскъ, the "Bulgarian language". In some cases, this name was used not only with regard to the contemporary Middle Bulgarian language of the copyist but also to the period of Old Bulgarian. A most notable example of anachronism is the Service of Saint Cyril from Skopje (Скопски миней), a 13th-century Middle Bulgarian manuscript from northern Macedonia according to which St. Cyril preached with "Bulgarian" books among the Moravian Slavs. The first mention of the language as the "Bulgarian language" instead of the "Slavonic language" comes in the work of the Greek clergy of the Archbishopric of Ohrid in the 11th century, for example in the Greek hagiography of Clement of Ohrid by Theophylact of Ohrid (late 11th century).
]]
During the Middle Bulgarian period, the language underwent dramatic changes, losing the Slavonic case system, but preserving the rich verb system (while the development was exactly the opposite in other Slavic languages) and developing a definite article. It was influenced by its non-Slavic neighbors in the Balkan language area (mostly grammatically) and later also by Turkish, which was the official language of the Ottoman Empire, in the form of the Ottoman Turkish language, mostly lexically. The damaskin texts mark the transition from Middle Bulgarian to New Bulgarian, which was standardized in the 19th century.
As a national revival occurred toward the end of the period of Ottoman rule (mostly during the 19th century), a modern Bulgarian literary language gradually emerged that drew heavily on Church Slavonic/Old Bulgarian (and to some extent on literary Russian, which had preserved many lexical items from Church Slavonic) and later reduced the number of Turkish and other Balkan loans. Today one difference between Bulgarian dialects in the country and literary spoken Bulgarian is the significant presence of Old Bulgarian words and even word forms in the latter. Russian loans are distinguished from Old Bulgarian ones on the basis of the presence of specifically Russian phonetic changes, as in оборот (turnover, rev), непонятен (incomprehensible), ядро (nucleus) and others. Many other loans from French, English and the classical languages have subsequently entered the language as well.
Modern Bulgarian was based essentially on the Eastern dialects of the language, but its pronunciation is in many respects a compromise between East and West Bulgarian (see especially the phonetic sections below). Following the efforts of some figures of the National awakening of Bulgaria (most notably Neofit Rilski and Ivan Bogorov), there had been many attempts to codify a standard Bulgarian language; however, there was much argument surrounding the choice of norms. Between 1835 and 1878 more than 25 proposals were put forward and "linguistic chaos" ensued. Eventually the eastern dialects prevailed,
and in 1899 the Bulgarian Ministry of Education officially codified where it is used in all spheres of public life. As of 2011, it is spoken as a first language by about 6million people in the country, or about four out of every five Bulgarian citizens.
There is also a significant Bulgarian diaspora abroad. One of the main historically established communities are the Bessarabian Bulgarians, whose settlement in the Bessarabia region of nowadays Moldova and Ukraine dates mostly to the early 19th century. There were Bulgarian speakers in Ukraine at the 2001 census, in Moldova as of the 2014 census (of which were habitual users of the language), and presumably a significant proportion of the 13,200 ethnic Bulgarians residing in neighbouring Transnistria in 2016.
Another community abroad are the Banat Bulgarians, who migrated in the 17th century to the Banat region now split between Romania, Serbia and Hungary. They speak the Banat Bulgarian dialect, which has had its own written standard and a historically important literary tradition.
There are Bulgarian speakers in neighbouring countries as well. The regional dialects of Bulgarian and Macedonian form a dialect continuum, and there is no well-defined boundary where one language ends and the other begins. Within the limits of the Republic of North Macedonia a strong separate Macedonian identity has emerged since the Second World War, even though there still are a small number of citizens who identify their language as Bulgarian. Beyond the borders of North Macedonia, the situation is more fluid, and the pockets of speakers of the related regional dialects in Albania and in Greece variously identify their language as Macedonian or as Bulgarian. In Serbia, there were speakers as of 2011, mainly concentrated in the so-called Western Outlands along the border with Bulgaria. Bulgarian is also spoken in Turkey: natively by Pomaks, and as a second language by many Bulgarian Turks who emigrated from Bulgaria, mostly during the "Big Excursion" of 1989.
The language is also represented among the diaspora in Western Europe and North America, which has been steadily growing since the 1990s. Countries with significant numbers of speakers include Germany, Spain, Italy, the United Kingdom ( speakers in England and Wales as of 2011), France, the United States, and Canada ( in 2011).Dialects
. Subregions are differentiated by pronunciation of man and tooth.]]
The language is mainly split into two broad dialect areas, based on the different reflexes of the Proto-Slavic yat vowel (Ѣ). This split, which occurred at some point during the Middle Ages, led to the development of Bulgaria's:
*Western dialects (informally called твърд говор/tvurd govor – "hard speech")
**the former yat is pronounced "e" in all positions. e.g. млеко (mlekò) – milk, хлеб (hleb) – bread.
*Eastern dialects (informally called мек говор/mek govor – "soft speech")
**the former yat alternates between "ya" and "e": it is pronounced "ya" if it is under stress and the next syllable does not contain a front vowel (e or i) – e.g. мляко (mlyàko), хляб (hlyab), and "e" otherwise – e.g. млекар (mlekàr) – milkman, хлебар (hlebàr) – baker. This rule obtains in most Eastern dialects, although some have "ya", or a special "open e" sound, in all positions.
The literary language norm, which is generally based on the Eastern dialects, also has the Eastern alternating reflex of yat. However, it has not incorporated the general Eastern umlaut of all synchronic or even historic "ya" sounds into "e" before front vowels – e.g. поляна (polyana) vs. полени (poleni) "meadow – meadows" or even жаба (zhaba) vs. жеби (zhebi) "frog – frogs", even though it co-occurs with the yat alternation in almost all Eastern dialects that have it (except a few dialects along the yat border, e.g. in the Pleven region).
More examples of the yat umlaut in the literary language are:
*mlyàko (milk) [n.] → mlekàr (milkman); mlèchen (milky), etc.
*syàdam (sit) [vb.] → sedàlka (seat); sedàlishte (seat, e.g. of government or institution, butt), etc.
*svyat (holy) [adj.] → svetètz (saint); svetìlishte (sanctuary), etc. (in this example, ya/e comes not from historical yat but from small yus (ѧ), which normally becomes e in Bulgarian, but the word was influenced by Russian and the yat umlaut)
Until 1945, Bulgarian orthography did not reveal this alternation and used the original Old Slavic Cyrillic letter yat (Ѣ), which was commonly called двойно е (dvoyno e) at the time, to express the historical yat vowel or at least root vowels displaying the ya – e alternation. The letter was used in each occurrence of such a root, regardless of the actual pronunciation of the vowel: thus, both mlyako and mlekar were spelled with (Ѣ). <!--If anyone doubts, as the previous wording seemed to suggest, that the Eastern alternation was already considered literary norm at the time, see e.g. Младенов, Стефан. Български етимологичен речник. 1941. p.XV-XVII.--> Among other things, this was seen as a way to "reconcile" the Western and the Eastern dialects and maintain language unity at a time when much of Bulgaria's Western dialect area was controlled by Serbia and Greece, but there were still hopes and occasional attempts to recover it. With the 1945 orthographic reform, this letter was abolished and the present spelling was introduced, reflecting the alternation in pronunciation.
This had implications for some grammatical constructions:
*The third person plural pronoun and its derivatives. Before 1945 the pronoun "they" was spelled тѣ (tě), and its derivatives took this as the root. After the orthographic change, the pronoun and its derivatives were given an equal share of soft and hard spellings:
**"they" – те (te) → "them" – тях (tyah);
**"their(s)" – tehen (masc.); tyahna (fem.); tyahno (neut.); tehni (plur.)
*adjectives received the same treatment as тѣ:
**"whole" – tsyal → "the whole...": tseliyat (masc.); tsyalata (fem.); tsyaloto (neut.); tselite (plur.)
Sometimes, with the changes, words began to be spelled as other words with different meanings, e.g.:
*свѣт (svět) – "world" became свят (svyat), spelt and pronounced the same as свят – "holy".
*тѣ (tě) – "they" became те (te).
In spite of the literary norm regarding the yat vowel, many people living in Western Bulgaria, including the capital Sofia, will fail to observe its rules. While the norm requires the realizations vidyal vs. videli (he has seen; they have seen), some natives of Western Bulgaria will preserve their local dialect pronunciation with "e" for all instances of "yat" (e.g. videl, videli). Others, attempting to adhere to the norm, will actually use the "ya" sound even in cases where the standard language has "e" (e.g. vidyal, vidyali). The latter hypercorrection is called свръхякане (svrah-yakane ≈"over-ya-ing").
;Shift from to
Bulgarian is the only Slavic language whose literary standard does not naturally contain the iotated e (or its variant, e after a palatalized consonant , except in non-Slavic foreign-loaned words). This sound combination is common in all modern Slavic languages (e.g. Czech medvěd "bear", Polish pięć "five", Serbo-Croatian jelen "deer", Ukrainian немає "there is not...", Macedonian пишување "writing", etc.), as well as some Western Bulgarian dialectal forms – e.g. ора̀н’е (standard Bulgarian: оране , "ploughing"), however it is not represented in standard Bulgarian speech or writing. Even where occurs in other Slavic words, in Standard Bulgarian it is usually transcribed and pronounced as pure – e.g. Boris Yeltsin is "Eltsin" (Борис Елцин), Yekaterinburg is "Ekaterinburg" (Екатеринбург) and Sarajevo is "Saraevo" (Сараево), although – because of the stress and the beginning of the word – Jelena Janković is "Yelena Yankovich" (Йелена Янкович).
Relationship to Macedonian
languages.]]
Until the period immediately following the Second World War, all Bulgarian and the majority of foreign linguists referred to the South Slavic dialect continuum spanning the area of modern Bulgaria, North Macedonia and parts of Northern Greece as a group of Bulgarian dialects. In contrast, Serbian sources tended to label them "south Serbian" dialects. Some local naming conventions included bolgárski, bugárski and so forth. The codifiers of the standard Bulgarian language, however, did not wish to make any allowances for a pluricentric "Bulgaro-Macedonian" compromise. In 1870 Marin Drinov, who played a decisive role in the standardization of the Bulgarian language, rejected the proposal of Parteniy Zografski and Kuzman Shapkarev for a mixed eastern and western Bulgarian/Macedonian foundation of the standard Bulgarian language, stating in his article in the newspaper Makedoniya: "Such an artificial assembly of written language is something impossible, unattainable and never heard of."
After 1944 the People's Republic of Bulgaria and the Socialist Federal Republic of Yugoslavia began a policy of making Macedonia into the connecting link for the establishment of a new Balkan Federative Republic and stimulating here a development of distinct Macedonian consciousness. With the proclamation of the Socialist Republic of Macedonia as part of the Yugoslav federation, the new authorities also started measures that would overcome the pro-Bulgarian feeling among parts of its population and in 1945 a separate Macedonian language was codified. After 1958, when the pressure from Moscow decreased, Sofia reverted to the view that the Macedonian language did not exist as a separate language. Nowadays, Bulgarian and Greek linguists, as well as some linguists from other countries, still consider the various Macedonian dialects as part of the broader Bulgarian pluricentric dialectal continuum. Outside Bulgaria and Greece, Macedonian is generally considered an autonomous language within the South Slavic dialect continuum. Sociolinguists agree that the question whether Macedonian is a dialect of Bulgarian or a language is a political one and cannot be resolved on a purely linguistic basis, because dialect continua do not allow for either/or judgements.
Phonology
Bulgarian possesses a phonology similar to that of the rest of the South Slavic languages, notably lacking Serbo-Croatian's phonemic vowel length and tones and alveo-palatal affricates. There is a general dichotomy between Eastern and Western dialects, with Eastern ones featuring consonant palatalization before front vowels ( and ) and substantial vowel reduction of the low vowels , and in unstressed position, sometimes leading to neutralisation between and , and , and and . Both patterns have partial parallels in Russian, leading to partially similar sounds. In turn, the Western dialects generally do not have any allophonic palatalization and exhibit minor, if any, vowel reduction.
Standard Bulgarian keeps a middle ground between the macrodialects. It allows palatalizaton only before central and back vowels and only partial reduction of and . Reduction of , consonant palatalisation before front vowels and depalatalization of palatalized consonants before central and back vowels is strongly discouraged and labelled as provincial.
Bulgarian has six vowel phonemes, but at least eight distinct phones can be distinguished when reduced allophones are taken into consideration. There is currently no consensus on the number of Bulgarian consonants, with one school of thought advocating for the existence of only 22 consonant phonemes and another one claiming that there are not fewer than 39 consonant phonemes. The main bone of contention is how to treat palatalized consonants: as separate phonemes or as allophones of their respective plain counterparts.
The 22-consonant model is based on a general consensus reached by all major Bulgarian linguists in the 1930s and 1940s. In turn, the 39-consonant model was launched in the beginning of the 1950s under the influence of the ideas of Russian linguist Nikolai Trubetzkoy.
Despite frequent objections, the support of the Bulgarian Academy of Sciences has ensured Trubetzkoy's model virtual monopoly in state-issued phonologies and grammars since the 1960s. However, its reception abroad has been lukewarm, with a number of authors either calling the model into question or outright rejecting it. Thus, the Handbook of the International Phonetic Association only lists 22 consonants in Bulgarian's consonant inventory.Alphabet
<!-- This section is linked from Diacritic -->
In 886 AD, the Bulgarian Empire introduced the Glagolitic alphabet which was devised by the Saints Cyril and Methodius in the 850s. The Glagolitic alphabet was gradually superseded in later centuries by the Cyrillic script, developed around the Preslav Literary School, Bulgaria in the late 9th century.
Several Cyrillic alphabets with 28 to 44 letters were used in the beginning and the middle of the 19th century during the efforts on the codification of Modern Bulgarian until an alphabet with 32 letters, proposed by Marin Drinov, gained prominence in the 1870s. The alphabet of Marin Drinov was used until the orthographic reform of 1945, when the letters yat (uppercase Ѣ, lowercase ѣ) and big yus (uppercase Ѫ, lowercase ѫ) were removed from its alphabet, reducing the number of letters to 30.
With the accession of Bulgaria to the European Union on 1 January 2007, Cyrillic became the third official script of the European Union, following the Latin and Greek scripts.Grammar
The parts of speech in Bulgarian are divided in ten types, which are categorized in two broad classes: mutable and immutable. The difference is that mutable parts of speech vary grammatically, whereas the immutable ones do not change, regardless of their use. The five classes of mutables are: nouns, adjectives, numerals, pronouns and verbs. Syntactically, the first four of these form the group of the noun or the nominal group. The immutables are: adverbs, prepositions, conjunctions, particles and interjections. Verbs and adverbs form the group of the verb or the verbal group.
Nominal morphology
Nouns and adjectives have the categories grammatical gender, number, case (only vocative) and definiteness in Bulgarian. Adjectives and adjectival pronouns agree with nouns in number and gender. Pronouns have gender and number and retain (as in nearly all Indo-European languages) a more significant part of the case system.
Nominal inflection
Gender
There are three grammatical genders in Bulgarian: masculine, feminine and neuter. The gender of the noun can largely be inferred from its ending: nouns ending in a consonant ("zero ending") are generally masculine (for example, 'city', 'son', 'man'; those ending in –а/–я (-a/-ya) ( 'woman', 'daughter', 'street') are normally feminine; and nouns ending in –е, –о are almost always neuter ( 'child', 'lake'), as are those rare words (usually loanwords) that end in –и, –у, and –ю ( 'tsunami', 'taboo', 'menu'). Perhaps the most significant exception from the above are the relatively numerous nouns that end in a consonant and yet are feminine: these comprise, firstly, a large group of nouns with zero ending expressing quality, degree or an abstraction, including all nouns ending on –ост/–ест -<nowiki/>{ost/est} ( 'wisdom', 'vileness', 'loveliness', 'sickness', 'love'), and secondly, a much smaller group of irregular nouns with zero ending which define tangible objects or concepts ( 'blood', 'bone', 'evening', 'night'). There are also some commonly used words that end in a vowel and yet are masculine: 'father', 'grandfather', / 'uncle', and others.
The plural forms of the nouns do not express their gender as clearly as the singular ones, but may also provide some clues to it: the ending (-i) is more likely to be used with a masculine or feminine noun ( 'facts', 'sicknesses'), while one in belongs more often to a neuter noun ( 'lakes'). Also, the plural ending occurs only in masculine nouns.
Number
Two numbers are distinguished in Bulgarian–singular and plural. A variety of plural suffixes is used, and the choice between them is partly determined by their ending in singular and partly influenced by gender; in addition, irregular declension and alternative plural forms are common. Words ending in (which are usually feminine) generally have the plural ending , upon dropping of the singular ending. Of nouns ending in a consonant, the feminine ones also use , whereas the masculine ones usually have for polysyllables and for monosyllables (however, exceptions are especially common in this group). Nouns ending in (most of which are neuter) mostly use the suffixes (both of which require the dropping of the singular endings) and .
With cardinal numbers and related words such as ('several'), masculine nouns use a special count form in , which stems from the Proto-Slavonic dual: ('two/three chairs') versus ('these chairs'); cf. feminine ('two/three/these books') and neuter ('two/three/these beds'). However, a recently developed language norm requires that count forms should only be used with masculine nouns that do not denote persons. Thus, ('two/three students') is perceived as more correct than , while the distinction is retained in cases such as ('two/three pencils') versus ('these pencils').
Case
Cases exist only in the personal and some other pronouns (as they do in many other modern Indo-European languages), with nominative, accusative, dative and vocative forms. Vestiges are present in a number of phraseological units and sayings. The major exception are vocative forms, which are still in use for masculine (with the endings -е, -о and -ю) and feminine nouns (-[ь/й]о and -е) in the singular.
Definiteness (article)
In modern Bulgarian, definiteness is expressed by a definite article which is postfixed to the noun, much like in the Scandinavian languages or Romanian (indefinite: , 'person'; definite: , "the person") or to the first nominal constituent of definite noun phrases (indefinite: , 'a good person'; definite: , "the good person"). There are four singular definite articles. Again, the choice between them is largely determined by the noun's ending in the singular. Nouns that end in a consonant and are masculine use –ът/–ят, when they are grammatical subjects, and –а/–я elsewhere. Nouns that end in a consonant and are feminine, as well as nouns that end in –а/–я (most of which are feminine, too) use –та. Nouns that end in –е/–о use –то.
The plural definite article is –те for all nouns except for those whose plural form ends in –а/–я; these get –та instead. When postfixed to adjectives the definite articles are –ят/–я for masculine gender (again, with the longer form being reserved for grammatical subjects), –та for feminine gender, –то for neuter gender, and –те for plural.
Adjective and numeral inflection
Both groups agree in gender and number with the noun they are appended to. They may also take the definite article as explained above.
Pronouns
Pronouns may vary in gender, number, and definiteness, and are the only parts of speech that have retained case inflections. Three cases are exhibited by some groups of pronouns – nominative, accusative and dative. The distinguishable types of pronouns include the following: personal, relative, reflexive, interrogative, negative, indefinite, summative and possessive.
Verbal morphology and grammar
A Bulgarian verb has many distinct forms, as it varies in person, number, voice, aspect, mood, tense and in some cases gender.
Finite verbal forms
Finite verbal forms are simple or compound and agree with subjects in person (first, second and third) and number (singular, plural). In addition to that, past compound forms using participles vary in gender (masculine, feminine, neuter) and voice (active and passive) as well as aspect (perfective/aorist and imperfective).
Aspect
Bulgarian verbs express lexical aspect: perfective verbs signify the completion of the action of the verb and form past perfective (aorist) forms; imperfective ones are neutral with regard to it and form past imperfective forms. Most Bulgarian verbs can be grouped in perfective-imperfective pairs (imperfective/perfective: "come", "arrive"). Perfective verbs can be usually formed from imperfective ones by suffixation or prefixation, but the resultant verb often deviates in meaning from the original. In the pair examples above, aspect is stem-specific and therefore there is no difference in meaning.
In Bulgarian, there is also grammatical aspect. Three grammatical aspects are distinguishable: neutral, perfect and pluperfect. The neutral aspect comprises the three simple tenses and the future tense. The pluperfect is manifest in tenses that use double or triple auxiliary "be" participles like the past pluperfect subjunctive. Perfect constructions use a single auxiliary "be".
Mood
The traditional interpretation is that in addition to the four moods (наклонения ) shared by most other European languages – indicative (изявително, ) imperative (повелително ), subjunctive ( ) and conditional (условно, ) – in Bulgarian there is one more to describe a general category of unwitnessed events – the inferential (преизказно ) mood. However, most contemporary Bulgarian linguists usually exclude the subjunctive mood and the inferential mood from the list of Bulgarian moods (thus placing the number of Bulgarian moods at a total of 3: indicative, imperative and conditional) and do not consider them to be moods but view them as verbial morphosyntactic constructs or separate gramemes of the verb class. The possible existence of a few other moods has been discussed in the literature. Most Bulgarian school grammars teach the traditional view of 4 Bulgarian moods (as described above, but excluding the subjunctive and including the inferential).
Tense
There are three grammatically distinctive positions in time – present, past and future – which combine with aspect and mood to produce a number of formations. Normally, in grammar books these formations are viewed as separate tenses – i. e. "past imperfect" would mean that the verb is in past tense, in the imperfective aspect, and in the indicative mood (since no other mood is shown). There are more than 40 different tenses across Bulgarian's two aspects and five moods.
In the indicative mood, there are three simple tenses:
*Present tense is a temporally unmarked simple form made up of the verbal stem and a complex suffix composed of the thematic vowel , or and the person/number ending (, , "I arrive/I am arriving"); only imperfective verbs can stand in the present indicative tense independently;
*Past imperfect is a simple verb form used to express an action which is contemporaneous or subordinate to other past actions; it is made up of an imperfective or a perfective verbal stem and the person/number ending ( , , 'I was arriving');
*Past aorist is a simple form used to express a temporarily independent, specific past action; it is made up of a perfective or an imperfective verbal stem and the person/number ending (, , 'I arrived', , , 'I read');
In the indicative there are also the following compound tenses:
*Future tense is a compound form made of the particle and present tense ( , 'I will study'); negation is expressed by the construction and present tense ( , or the old-fashioned form , 'I will not study');
*Past future tense is a compound form used to express an action which was to be completed in the past but was future as regards another past action; it is made up of the past imperfect of the verb ('will'), the particle ('to') and the present tense of the verb (e.g. , , 'I was going to study');
*Present perfect is a compound form used to express an action which was completed in the past but is relevant for or related to the present; it is made up of the present tense of the verb съм ('be') and the past participle (e.g. , 'I have studied');
*Past perfect is a compound form used to express an action which was completed in the past and is relative to another past action; it is made up of the past tense of the verb съм and the past participle (e.g. , 'I had studied');
*Future perfect is a compound form used to express an action which is to take place in the future before another future action; it is made up of the future tense of the verb съм and the past participle (e.g. , 'I will have studied');
*Past future perfect is a compound form used to express a past action which is future with respect to a past action which itself is prior to another past action; it is made up of the past imperfect of , the particle the present tense of the verb съм and the past participle of the verb (e.g. , , 'I would have studied').
The four perfect constructions above can vary in aspect depending on the aspect of the main-verb participle; they are in fact pairs of imperfective and perfective aspects. Verbs in forms using past participles also vary in voice and gender.
There is only one simple tense in the imperative mood, the present, and there are simple forms only for the second-person singular, -и/-й (-i, -y/i), and plural, -ете/-йте (-ete, -yte), e.g. уча ('to study'): , sg., , pl.; 'to play': , . There are compound imperative forms for all persons and numbers in the present compound imperative (, ), the present perfect compound imperative (, ) and the rarely used present pluperfect compound imperative (, ).
The conditional mood consists of five compound tenses, most of which are not grammatically distinguishable. The present, future and past conditional use a special past form of the stem би- (bi – "be") and the past participle (, , 'I would study'). The past future conditional and the past future perfect conditional coincide in form with the respective indicative tenses.
The subjunctive mood is rarely documented as a separate verb form in Bulgarian, (being, morphologically, a sub-instance of the quasi-infinitive construction with the particle да and a normal finite verb form), but nevertheless it is used regularly. The most common form, often mistaken for the present tense, is the present subjunctive ( , 'I had better go'). The difference between the present indicative and the present subjunctive tense is that the subjunctive can be formed by both perfective and imperfective verbs. It has completely replaced the infinitive and the supine from complex expressions (see below). It is also employed to express opinion about possible future events. The past perfect subjunctive ( , 'I'd had better be gone') refers to possible events in the past, which did not take place, and the present pluperfect subjunctive ( ), which may be used about both past and future events arousing feelings of incontinence,<!-- inability to control one's bodily functions?--> suspicion, etc.
The inferential mood has five pure tenses. Two of them are simple – past aorist inferential and past imperfect inferential – and are formed by the past participles of perfective and imperfective verbs, respectively. There are also three compound tenses – past future inferential, past future perfect inferential and past perfect inferential. All these tenses' forms are gender-specific in the singular. There are also conditional and compound-imperative crossovers. The existence of inferential forms has been attributed to Turkic influences by most Bulgarian linguists. Morphologically, they are derived from the perfect.
Non-finite verbal forms
Bulgarian has the following participles:
*Present active participle (сегашно деятелно причастие) is formed from imperfective stems with the addition of the suffixes –ащ/–ещ/–ящ (четящ, 'reading') and is used only attributively;
*Present passive participle (сегашно страдателно причастие) is formed by the addition of the suffixes -им/аем/уем (четим, 'that can be read, readable');
*Past active aorist participle (минало свършено деятелно причастие) is formed by the addition of the suffix –л– to perfective stems (чел, '[have] read');
*Past active imperfect participle (минало несвършено деятелно причастие) is formed by the addition of the suffixes –ел/–ал/–ял to imperfective stems (четял, '[have been] reading');
*Past passive aorist participle (минало свършено страдателно причастие) is formed from aorist/perfective stems with the addition of the suffixes -н/–т (прочетен', 'read'; убит, 'killed'); it is used predicatively and attributively;
*Past passive imperfect participle (минало несвършено страдателно причастие) is formed from imperfective stems with the addition of the suffix –н (прочитан', '[been] read'; убиван, '[been] being killed'); it is used predicatively and attributively;
*Adverbial participle (деепричастие) is usually formed from imperfective present stems with the suffix –(е)йки (четейки, 'while reading'), relates an action contemporaneous with and subordinate to the main verb and is originally a Western Bulgarian form.
The participles are inflected by gender, number, and definiteness, and are coordinated with the subject when forming compound tenses (see tenses above). When used in an attributive role, the inflection attributes are coordinated with the noun that is being attributed.
Reflexive verbs
Bulgarian uses reflexive verbal forms (i.e. actions which are performed by the agent onto him- or herself) which behave in a similar way as they do in many other Indo-European languages, such as French and Spanish. The reflexive is expressed by the invariable particle se, originally a clitic form of the accusative reflexive pronoun. Thus –
*miya – I wash, miya se – I wash myself, miesh se – you wash yourself
*pitam – I ask, pitam se – I ask myself, pitash se – you ask yourself
When the action is performed on others, other particles are used, just like in any normal verb, e.g. –
*miya te – I wash you
*pitash me – you ask me
Sometimes, the reflexive verb form has a similar but not necessarily identical meaning to the non-reflexive verb –
*kazvam – I say, kazvam se – my name is ()
*vizhdam – I see, vizhdame se – "we see ourselves" or "we meet each other"
In other cases, the reflexive verb has a completely different meaning from its non-reflexive counterpart –
*karam – to drive, karam se – to have a row with someone
*gotvya – to cook, gotvya se – to get ready
*smeya – to dare, smeya se – to laugh
;Indirect actions
When the action is performed on an indirect object, the particles change to si and its derivatives –
*kazvam si – I say to myself, kazvash si – you say to yourself, kazvam ti – I say to you
*peya si – I am singing to myself, pee si – she is singing to herself, pee mu – she is singing to him
*gotvya si – I cook for myself, gotvyat si – they cook for themselves, gotvya im – I cook for them
In some cases, the particle si is ambiguous between the indirect object and the possessive meaning –
*miya si ratsete – I wash my hands, miya ti ratsete – I wash your hands
*pitam si priyatelite – I ask my friends, pitam ti priyatelite – I ask your friends
*iskam si topkata – I want my ball (back)
The difference between transitive and intransitive verbs can lead to significant differences in meaning with minimal change, e.g. –
*haresvash me – you like me, haresvash mi – I like you (lit. you are pleasing to me)
*otivam – I am going, otivam si – I am going home
The particle si is often used to indicate a more personal relationship to the action, e.g. –
*haresvam go – I like him, haresvam si go – no precise translation, roughly translates as "he's really close to my heart"
*stanahme priyateli – we became friends, stanahme si priyateli – same meaning, but sounds friendlier
*mislya – I am thinking (usually about something serious), mislya si – same meaning, but usually about something personal and/or trivial
Adverbs
The most productive way to form adverbs is to derive them from the neuter singular form of the corresponding adjective—e.g. (fast), (hard), (strange)—but adjectives ending in use the masculine singular form (i.e. ending in ), instead—e.g. (heroically), (bravely, like a man), (skillfully). The same pattern is used to form adverbs from the (adjective-like) ordinal numerals, e.g. (firstly), (secondly), (thirdly), and in some cases from (adjective-like) cardinal numerals, e.g. (twice as/double), (three times as), (five times as).
The remaining adverbs are formed in ways that are no longer productive in the language. A small number are original (not derived from other words), for example: (here), (there), (inside), (outside), (very/much) etc. The rest are mostly fossilized case forms, such as:
*Archaic locative forms of some adjectives, e.g. (well), (badly), (too, rather), and nouns (up), (tomorrow), (in the summer), (in winter)
*Archaic instrumental forms of some adjectives, e.g. (quietly), (furtively), (blindly), and nouns, e.g. (during the day), (during the night), (one next to the other), (spiritually), (in figures), (with words); or verbs: (while running), (while lying), (while standing)
*Archaic accusative forms of some nouns: (today), (tonight), (in the morning), (in winter)
*Archaic genitive forms of some nouns: (tonight), (last night), (yesterday)
*Homonymous and etymologically identical to the feminine singular form of the corresponding adjective used with the definite article: (hard), (gropingly); the same pattern has been applied to some verbs, e.g. (while running), (while lying), (while standing)
*Derived from cardinal numerals by means of a non-productive suffix: (once), (twice), (thrice)
Adverbs can sometimes be reduplicated to emphasize the qualitative or quantitative properties of actions, moods or relations as performed by the subject of the sentence: "" ("rather slowly"), "" ("with great difficulty"), "" ("quite", "thoroughly").
Other features
QuestionsQuestions in Bulgarian which do not use a question word (such as who? what? etc.) are formed with the particle after the verb; a subject is not necessary, as the verbal conjugation suggests who is performing the action:
* – 'you are coming'; – 'are you coming?'
While the particle generally goes after the verb, it can go after a noun or adjective if a contrast is needed:
* – 'are you coming with us?';
* – 'are you coming with us<nowiki>'</nowiki>?
A verb is not always necessary, e.g. when presenting a choice:
* – 'him?'; – 'the yellow one?'
Rhetorical questions can be formed by adding to a question word, thus forming a "double interrogative" –
* – 'Who?'; – 'I wonder who(?)'
The same construction ('no') is an emphasized positive –
* – 'Who was there?' – – 'Nearly everyone!' (lit. 'I wonder who ''wasn't'' there')
Significant verbs
Be (Съм)
The verb – 'to be' is also used as an auxiliary for forming the perfect, the passive and the conditional:
*past tense – – 'I have hit'
*passive – – 'I am hit'
*past passive – – 'I was hit'
*conditional – – 'I would hit'
Two alternate forms of exist:
* – interchangeable with съм in most tenses and moods, but never in the present indicative – e.g. ('I want to be'), ('I will be here'); in the imperative, only бъда is used – ('be here');
* – slightly archaic, imperfective form of бъда – e.g. ('he used to get threats'); in contemporary usage, it is mostly used in the negative to mean "ought not", e.g. ('you shouldn't smoke').Will (Ще)The impersonal verb () is used to for forming the (positive) future tense:
* – 'I am going'
* – 'I will be going'
The negative future is formed with the invariable construction (see below):
* – 'I will not be going'
The past tense of this verb – щях is conjugated to form the past conditional ('would have' – again, with да, since it is irrealis):
* – 'I would have gone;' 'you would have gone'
Have/Don't have (Имам and нямам)
The verbs ('to have') and ('to not have'):
*the third person singular of these two can be used impersonally to mean 'there is/there are' or 'there isn't/aren't any,' e.g.
** ('there is still time' – compare Spanish hay);
** ('there is no one there').
*The impersonal form няма is used in the negative future – (see ще above).
** used on its own can mean simply 'I won't' – a simple refusal to a suggestion or instruction.
Conjunctions and particles
But
In Bulgarian, there are several conjunctions all translating into English as "but", which are all used in distinct situations. They are (), (), (), (), and () (and () – "however", identical in use to ).
While there is some overlapping between their uses, in many cases they are specific. For example, is used for a choice – – "not this one, but that one" (compare Spanish ), while is often used to provide extra information or an opinion – – "I said it, but I was wrong". Meanwhile, provides contrast between two situations, and in some sentences can even be translated as "although", "while" or even "and" – – "I'm working, and he's daydreaming".
Very often, different words can be used to alter the emphasis of a sentence – e.g. while and both mean "I smoke, but I shouldn't", the first sounds more like a statement of fact ("...but I mustn't"), while the second feels more like a judgement ("...but I oughtn't"). Similarly, and both mean "I don't want to, but he does", however the first emphasizes the fact that he wants to, while the second emphasizes the wanting rather than the person.
is interesting in that, while it feels archaic, it is often used in poetry and frequently in children's stories, since it has quite a moral/ominous feel to it.
Some common expressions use these words, and some can be used alone as interjections:
* () – means "you're wrong to think so".
* can be tagged onto a sentence to express surprise: – "he's sleeping!"
* – "you don't say!", "really!"
Vocative particles
Bulgarian has several abstract particles which are used to strengthen a statement. These have no precise translation in English. The particles are strictly informal and can even be considered rude by some people and in some situations. They are mostly used at the end of questions or instructions.
* () – the most common particle. It can be used to strengthen a statement or, sometimes, to indicate derision of an opinion, aided by the tone of voice. (Originally purely masculine, it can now be used towards both men and women.)
** – tell me (insistence); – is that so? (derisive); – you don't say!.
* ( – expresses urgency, sometimes pleading.
** – come on, get up!
* () (feminine only) – originally simply the feminine counterpart of , but today perceived as rude and derisive (compare the similar evolution of the vocative forms of feminine names).
* (, masculine), (, feminine) – similar to and , but archaic. Although informal, can sometimes be heard being used by older people.
Modal particles
These are "tagged" on to the beginning or end of a sentence to express the mood of the speaker in relation to the situation. They are mostly interrogative or slightly imperative in nature. There is no change in the grammatical mood when these are used (although they may be expressed through different grammatical moods in other languages).
* () – is a universal affirmative tag, like "isn't it"/"won't you", etc. (it is invariable, like the French ). It can be placed almost anywhere in the sentence, and does not always require a verb:
** – you are coming, aren't you?; – didn't they want to?; – that one, right?;
**it can express quite complex thoughts through simple constructions – – "I thought you weren't going to!" or "I thought there weren't any!" (depending on context – the verb presents general negation/lacking, see "nyama", above).
* () – expresses uncertainty (if in the middle of a clause, can be translated as "whether") – e.g. – "do you think he will come?"
* () – presents disbelief ~"don't tell me that..." – e.g. – "don't tell me you want to!". It can be used on its own as an interjection –
* () – expresses wish – – "he will come"; – "may he come". Grammatically, is entirely separate from the verb () – "to wish".
* () – means "let('s)" – e.g. – "let him come"; when used in the first person, it expresses extreme politeness: – "let us go" (in colloquial situations, , below, is used instead).
**, as an interjection, can also be used to express judgement or even schadenfreude – – "he deserves it!".
Intentional particles
These express intent or desire, perhaps even pleading. They can be seen as a sort of cohortative side to the language. (Since they can be used by themselves, they could even be considered as verbs in their own right.) They are also highly informal.
* () – "come on", "let's"
**e.g. – "faster!"
* () – "let me" – exclusively when asking someone else for something. It can even be used on its own as a request or instruction (depending on the tone used), indicating that the speaker wants to partake in or try whatever the listener is doing.
** – let me see; or – "let me.../give me..."
* () (plural ) – can be used to issue a negative instruction – e.g. – "don't come" ( + subjunctive). In some dialects, the construction ( + preterite) is used instead. As an interjection – – "don't!" (See section on imperative mood).
These particles can be combined with the vocative particles for greater effect, e.g. (let me see), or even exclusively in combinations with them, with no other elements, e.g. (come on!); (I told you not to!).
Pronouns of quality
Bulgarian has several pronouns of quality which have no direct parallels in English – (what sort of); (this sort of); (that sort of – colloq.); (some sort of); (no sort of); (every sort of); and the relative pronoun (the sort of ... that ... ). The adjective ("the same") derives from the same radical.
Example phrases include:
* – "what person?!"; – what sort of person is he?
* – "I don't know any (people like that)" (lit. "I don't know this sort of (person)")
* – lit. "some type of people", but the understood meaning is "a bunch of people I don't know"
* – "all sorts of people"
* – "which type do you want?"; – "I don't want any!"/"none!"
An interesting phenomenon is that these can be strung along one after another in quite long constructions, e.g.
{|class="wikitable"
|-
!word
!literal meaning
!sentence
!meaning of sentence as a whole
|-
|–
|–
|
|a car
|-
|
|this sort of
|
|this car '''(that I'm trying to describe)
|-
|
|no sort of
|
|this worthless''' car (that I'm trying to describe)
|-
|
|some sort of
|
|this sort of worthless car (that I'm trying to describe)
|}
An extreme, albeit colloquial, example with almost no intrinsic lexical meaning – yet which is meaningful to the Bulgarian ear – would be :
*""
*inferred translation – "what kind of no-good person is she?"
*literal translation: "what kind of – is – this one here (she) – this sort of – one – some sort of – no sort of"
The subject of the sentence is simply the pronoun "" (lit. "this one here"; colloq. "she").
Another interesting phenomenon that is observed in colloquial speech is the use of (neuter of ) not only as a substitute for an adjective, but also as a substitute for a verb. In that case the base form is used as the third person singular in the present indicative and all other forms are formed by analogy to other verbs in the language. Sometimes the "verb" may even acquire a derivational prefix that changes its meaning. Examples:
* – I did something to your hat (perhaps: I took your hat)
* – I did something to my glasses (perhaps: I lost my glasses)
* – I did something to myself (perhaps: I hurt myself)
Another use of in colloquial speech is the word , which can be used as a substitution for a noun, but also, if the speaker does not remember or is not sure how to say something, they might say and then pause to think about it:
* – and then he [no translation] ...
* – I ate something of yours (perhaps: I ate your dessert). Here the word is used as a substitution for a noun.
As a result of this versatility, the word can readily be used as a euphemism for taboo subjects. It is commonly used to substitute, for example, words relating to reproductive organs or sexual acts:
* - he [verb] his [noun] in her [noun]
Similar "meaningless" expressions are extremely common in spoken Bulgarian, especially when the speaker is finding it difficult to describe or express something.
Miscellaneous
*The commonly cited phenomenon of Bulgarian people shaking their head for "yes" and nodding for "no" is true, but the shaking and nodding are not identical to the Western gestures. The "nod" for no is actually an upward movement of the head rather than a downward one, while the shaking of the head for yes is not completely horizontal, but also has a slight "wavy" aspect to it. This makes the Bulgarian gestures for yes and no compatible with the Western ones, and allows one to use either system unambiguously.
**A dental click (similar to the English "tsk") also means "no" (informal), as does ъ-ъ (the only occurrence in Bulgarian of the glottal stop). The two are often said with the upward 'nod'.
**The head-shaking gesture used to signify "no" in Western Europe may also be used interrogatively, with the meaning of "what is it?" or "what's wrong?".
*Bulgarian has an extensive vocabulary covering family relationships. The biggest range of words is for uncles and aunts, e.g. chicho (your father's brother), vuicho (your mother's brother), svako (your aunt's husband); an even larger number of synonyms for these three exists in the various dialects of Bulgarian, including kaleko, lelincho, tetin, etc. The words do not only refer to the closest members of the family (such as brat – brother, but batko/bate – older brother, sestra – sister, but kaka – older sister), but extend to its furthest reaches, e.g. badzhanak from Turkish bacanak (the relationship of the husbands of two sisters to each other) and etarva (the relationships of two brothers' wives to each other). For all in-laws, there are specific names, e.g. a woman's husband's brother is her devеr and her husband's sister is her zalva. In the traditional rural extended family before 1900, there existed separate subcategories for different brothers-in-law/sisters-in-law of a woman with regard to their age relative to hers, e.g. instead of simply a dever there could be a braino (older), a draginko (younger), or an ubavenkyo (who is still a child).
*As with many Slavic languages, the double negative in Bulgarian is grammatically correct, while some forms of it, when used instead of a single negative form, are grammatically incorrect. The following are literal translations of grammatically correct Bulgarian sentences that utilize a double or multiple negation: "Никой никъде никога нищо не е направил." (multiple negation without the use of a compound double negative form, i.e. using a listing of several successive single negation words) – "Nobody never nowhere nothing did not do." (translated as "nobody has ever done anything, anywhere"); "Никога не съм бил там." (double negation without the use of a compound double negative form, i.e. using a listing of several successive single negation words) – I never did not go there ("[I] have never been there"); Никога никакви чувства не съм имал! – I never no feelings had not have! (I have never had any feelings!). The same applies for Macedonian.
Syntax
Bulgarian employs clitic doubling, mostly for emphatic purposes. For example, the following constructions are common in colloquial Bulgarian:
:
:(lit. "I gave it the present to Maria.")
:
:(lit. "I gave her it the present to Maria.")
The phenomenon is practically obligatory in the spoken language in the case of inversion signalling information structure (in writing, clitic doubling may be skipped in such instances, with a somewhat bookish effect):
:
:(lit. "The present [to her] it I-gave to Maria.")
:
:(lit. "To Maria to her [it] I-gave the present.")
Sometimes, the doubling signals syntactic relations, thus:
:
:(lit. "Petar and Ivan them ate the wolves.")
:Transl.: "Petar and Ivan were eaten by the wolves".
This is contrasted with:
:
:()
:Transl.: "Petar and Ivan ate the wolves".
In this case, clitic doubling can be a colloquial alternative of the more formal or bookish passive voice, which would be constructed as follows:
:
:()
Clitic doubling is also fully obligatory, both in the spoken and in the written norm, in clauses including several special expressions that use the short accusative and dative pronouns such as "" (I feel like playing), студено ми е (I am cold), and боли ме ръката (my arm hurts):
:
:(lit. "To me to me it-feels-like-sleeping, and to Ivan to him it-feels-like-playing")
:Transl.: "I feel like sleeping, and Ivan feels like playing."
:
:(lit. "To us to us it-is cold, and to you-plur. to you-plur. it-is warm")
:Transl.: "We are cold, and you are warm."
:
:(lit. Ivan him aches the throat, and me me aches the head)
:Transl.: Ivan has sore throat, and I have a headache.
Except the above examples, clitic doubling is considered inappropriate in a formal context.
Vocabulary
Most of the vocabulary of modern Bulgarian consists of terms inherited from Proto-Slavic and local Bulgarian innovations and formations of those through the mediation of Old and Middle Bulgarian. The native terms in Bulgarian account for 70% to 80% of the lexicon.
The remaining 20% to 30% are loanwords from a number of languages, as well as derivations of such words. Bulgarian adopted also a few words of Thracian and Bulgar origin. The languages which have contributed most to Bulgarian as a way of foreign vocabulary borrowings are:
*Latin 26%,
*Italian 4%,
| titlebar = #ddd
| bars =
}}
}}
Sample text
Article 1 of the Universal Declaration of Human Rights in Bulgarian:
:
The romanization of the text into Latin alphabet:
:
Bulgarian pronunciation transliterated in broad IPA:
:['fsit͡ʃki 'xɔrɐ sɛ 'raʒdɐt svo'bɔdni i 'ravni po dos'tɔjnstvo i prɐ'va. 'tɛ sɐ nɐdɐ'rɛni s 'razom i 'sɤvɛst i 'slɛdvɐ dɐ sɛ ot'nasjɐt pomɛʒ'du si v 'dux nɐ 'bratstvo.]
Article 1 of the Universal Declaration of Human Rights in English:
:All human beings are born free and equal in dignity and rights. They are endowed with reason and conscience and should act towards one another in a spirit of brotherhood.See also
*Abstand and ausbau languages
*Balkan sprachbund
*Banat Bulgarian language
*Bulgarian name
*Macedonian language
*Slavic language (Greece)
*Swadesh list of Slavic languages
*Torlakian dialect
*The BABEL Speech Corpus
Explanatory notes
ReferencesBibliography*
*
*
*
*Бояджиев и др. (1998) Граматика на съвременния български книжовен език. Том 1. Фонетика
*Жобов, Владимир (2004) Звуковете в българския език
*Кръстев, Боримир (1992) Граматика за всички
*Пашов, Петър (1999) Българска граматика
*
* Notes on the Grammar of the Bulgarian language – 1844 – Smyrna (now İzmir) – Elias Riggs
External links
Linguistic reports
*[http://www.omniglot.com/writing/bulgarian.htm Bulgarian at Omniglot]
*[http://en.wiktionary.org/wiki/Appendix:Bulgarian_Swadesh_list Bulgarian Swadesh list of basic vocabulary words] (from Wiktionary's [http://en.wiktionary.org/wiki/Appendix:Swadesh_lists Swadesh list appendix])
*[http://glottolog.org/resource/languoid/id/bulg1262 Information about the linguistic classification of the Bulgarian language (from Glottolog)]
*[http://wals.info/languoid/lect/wals_code_bul The linguistic features of the Bulgarian language (from WALS, The World Atlas of Language Structures Online)]
*[http://phoible.org/languages/bul Information about the Bulgarian language] from the PHOIBLE project.
*[https://www.unicode.org/cldr/charts/25/summary/bg.html Locale Data Summary for the Bulgarian language] from Unicode's CLDR
*
Dictionaries
*[https://web.archive.org/web/20130707060850/http://www.bulgariandictionary.com/index.php?langEN&main0 Eurodict — multilingual Bulgarian dictionaries]
*[http://rechnik.info Rechnik.info — online dictionary of the Bulgarian language]
*[http://rechnik.chitanka.info Rechko — online dictionary of the Bulgarian language]
*[http://sa.dir.bg/ Bulgarian–English–Bulgarian Online dictionary] from [http://sa.dir.bg/sa.htm SA Dictionary]
*[http://1nk.us/dict/index.html?worddictionary Online Dual English–Bulgarian dictionary]
*[http://www.dicts.info/dictlist1.php?l=Bulgarian Bulgarian bilingual dictionaries]
*[http://www.newobjects.com/dict.asp English, Bulgarian bidirectional dictionary]
Courses
*[https://web.archive.org/web/20190114153310/https://unilang.org/course.php?res=60 Bulgarian for Beginners], UniLang
Category:Analytic languages
Category:Languages of Bulgaria
Category:Languages of Greece
Category:Languages of Romania
Category:Languages of Serbia
Category:Languages of North Macedonia
Category:Languages of Turkey
Category:Languages of Moldova
Category:Languages of Ukraine
Category:Eastern South Slavic
Category:Subject–verb–object languages
Category:Languages written in Cyrillic script | https://en.wikipedia.org/wiki/Bulgarian_language | 2025-04-05T18:26:41.997507 |
4153 | Bipyramid | In geometry, a bipyramid, dipyramid, or double pyramid is a polyhedron formed by fusing two pyramids together base-to-base. The polygonal base of each pyramid must therefore be the same, and unless otherwise specified the base vertices are usually coplanar and a bipyramid is usually symmetric, meaning the two pyramids are mirror images across their common base plane. When each apex (, the off-base vertices) of the bipyramid is on a line perpendicular to the base and passing through its center, it is a right bipyramid; otherwise it is oblique. When the base is a regular polygon, the bipyramid is also called regular. Definition and properties
A bipyramid is a polyhedron constructed by fusing two pyramids which share the same polygonal base; a pyramid is in turn constructed by connecting each vertex of its base to a single new vertex (the apex) not lying in the plane of the base, for an -}}gonal base forming triangular faces in addition to the base face. An -}}gonal bipyramid thus has faces, edges, and vertices. More generally, a right pyramid is a pyramid where the apices are on the perpendicular line through the centroid of an arbitrary polygon or the incenter of a tangential polygon, depending on the source. Likewise, a right bipyramid is a polyhedron constructed by attaching two symmetrical right bipyramid bases; bipyramids whose apices are not on this line are called oblique bipyramids.
When the two pyramids are mirror images, the bipyramid is called symmetric. It is called regular if its base is a regular polygon. When the base is a regular polygon and the apices are on the perpendicular line through its center (a regular right bipyramid) then all of its faces are isosceles triangles; sometimes the name bipyramid refers specifically to symmetric regular right bipyramids, Examples of such bipyramids are the triangular bipyramid, octahedron (square bipyramid) and pentagonal bipyramid. If all their edges are equal in length, these shapes consist of equilateral triangle faces, making them deltahedra; the triangular bipyramid and the pentagonal bipyramid are Johnson solids, and the regular octahedron is a Platonic solid.
The symmetric regular right bipyramids have prismatic symmetry, with dihedral symmetry group of order : they are unchanged when rotated }} of a turn around the axis of symmetry, reflected across any plane passing through both apices and a base vertex or both apices and the center of a base edge, or reflected across the mirror plane. Because their faces are transitive under these symmetry transformations, they are isohedral. They are the dual polyhedra of prisms and the prisms are the dual of bipyramids as well; the bipyramids vertices correspond to the faces of the prism, and the edges between pairs of vertices of one correspond to the edges between pairs of faces of the other, and vice versa. The prisms share the same symmetry as the bipyramids. The regular octahedron is more symmetric still, as its base vertices and apices are indistinguishable and can be exchanged by reflections or rotations; the regular octahedron and its dual, the cube, have octahedral symmetry.
The volume of a symmetric bipyramid is
<math display=block> \frac{2}{3}Bh, </math>
where is the area of the base and the perpendicular distance from the base plane to either apex. In the case of a regular -}}sided polygon with side length and whose altitude is , the volume of such a bipyramid is:
<math displayblock> \frac{n}{6}hs^2 \cot \frac{\pi}{n}. </math> Related and other types of bipyramid
Concave bipyramids
A concave bipyramid has a concave polygon base, and one example is a concave tetragonal bipyramid or an irregular concave octahedron. A bipyramid with an arbitrary polygonal base could be considered a right bipyramid if the apices are on a line perpendicular to the base passing through the base's centroid.
Asymmetric bipyramids
An asymmetric bipyramid has apices which are not mirrored across the base plane; for a right bipyramid this only happens if each apex is a different distance from the base.
The dual of an asymmetric right -gonal bipyramid is an -gonal frustum.
A regular asymmetric right -gonal bipyramid has symmetry group , of order .
Scalene triangle bipyramids
An isotoxal right (symmetric) di--gonal bipyramid is a right (symmetric) -gonal bipyramid with an isotoxal flat polygon base: its basal vertices are coplanar, but alternate in two radii.
All its faces are congruent scalene triangles, and it is isohedral. It can be seen as another type of a right symmetric di--gonal scalenohedron, with an isotoxal flat polygon base.
An isotoxal right (symmetric) di--gonal bipyramid has two-fold rotation axes through opposite basal vertices, reflection planes through opposite apical edges, an -fold rotation axis through apices, a reflection plane through base, and an -fold rotation-reflection axis through apices,
All its faces are congruent scalene triangles, and it is isohedral. It can be seen as another type of a right symmetric di--gonal bipyramid, with a regular zigzag skew polygon base.
A regular right symmetric di--gonal scalenohedron has two-fold rotation axes through opposite basal mid-edges, reflection planes through opposite apical edges, an -fold rotation axis through apices, and a -fold rotation-reflection axis through apices (about which rotations-reflections globally preserve the solid),
A regular right symmetric star bipyramid has congruent isosceles triangle faces, and is isohedral.
A -bipyramid has Coxeter diagram .
{| class=wikitable
|+ style="text-align:center;"|Example star bipyramids:
|- align=center
!Base
!5/2-gon
!7/2-gon
!7/3-gon
!8/3-gon
|- align=center
!Image
|
|
|
|
|}
4-polytopes with bipyramidal cells
The dual of the rectification of each convex regular 4-polytopes is a cell-transitive 4-polytope with bipyramidal cells. In the following:
* is the apex vertex of the bipyramid;
* is an equator vertex;
*}} is the distance between adjacent vertices on the equator (equal to 1);
*}} is the apex-to-equator edge length;
*}} is the distance between the apices.
The bipyramid 4-polytope will have vertices where the apices of bipyramids meet. It will have vertices where the type vertices of bipyramids meet.
*{{tmath|N_\overline{AE} }} bipyramids meet along each type }} edge.
*{{tmath|N_\overline{EE} }} bipyramids meet along each type }} edge.
*{{tmath|C_\overline{AE} }} is the cosine of the dihedral angle along an }} edge.
*{{tmath|C_\overline{EE} }} is the cosine of the dihedral angle along an }} edge.
As cells must fit around an edge,
<math display=block>\begin{align}
N_\overline{EE} \arccos C_\overline{EE} &\le 2\pi, \\[4pt]
N_\overline{AE} \arccos C_\overline{AE} &\le 2\pi.
\end{align}</math>
{| class=wikitable
|+ style="text-align:center;"|4-polytopes with bipyramidal cells
!colspan=9| 4-polytope properties
!colspan=6| Bipyramid properties
|- align=center
! Dual of <br> rectified <br> polytope
! Coxeter<br>diagram
! Cells
!
!
!
!
! style="padding:0.2em;" | {{tmath|N_\overline{\!AE} }}
! style="padding:0.2em;" | {{tmath|N_\overline{\!EE} }}
! Bipyramid <br> cell
! Coxeter<br>diagram
! }}
! }}
! {{tmath|C_\overline{AE} }}
! {{tmath|C_\overline{EE} }}
|- align=center
| R. 5-cell
|
| 10
| 5
| 5
| 4
| 6
| 3
| 3
| Triangular
|
| <math display=inline>\frac23</math>
| 0.667
| <math display=inline>-\frac17</math>
| <math display=inline>-\frac17</math>
|- align=center
| R. tesseract
|
| 32
| 16
| 8
| 4
| 12
| 3
| 4
| Triangular
|
| <math display=inline>\frac{\sqrt{2}}{3}</math>
| 0.624
| <math display=inline>-\frac25</math>
| <math display=inline>-\frac15</math>
|- align=center
| R. 24-cell
|
| 96
| 24
| 24
| 8
| 12
| 4
| 3
| Triangular
|
| <math display=inline>\frac{2 \sqrt{2}}{3}</math>
| 0.745
| <math display=inline>\frac1{11}</math>
| <math display=inline>-\frac5{11}</math>
|- align=center
| R. 120-cell
|
| 1200
| 600
| 120
| 4
| 30
| 3
| 5
| Triangular
|
| <math display=inline>\frac{\sqrt{5} - 1}{3}</math>
| 0.613
| <math display=inline>- \frac{10 + 9\sqrt{5}}{61}</math>
| <math display=inline>- \frac{7 - 12\sqrt{5}}{61}</math>
|- align=center
| R. 16-cell
|
| 24
| 8
| 16
| 6
| 6
| 3
| 3
| Square
|
| <math display=inline>\sqrt{2}</math>
| 1
| <math display=inline>-\frac13</math>
| <math display=inline>-\frac13</math>
|- align=center
| R. cubic <br> honeycomb
|
| ∞
| ∞
| ∞
| 6
| 12
| 3
| 4
| Square
|
| <math display=inline>1</math>
| 0.866
| <math display=inline>-\frac12</math>
| <math display=inline>0</math>
|- align=center
| R. 600-cell
|
| 720
| 120
| 600
| 12
| 6
| 3
| 3
| Pentagonal
|
| <math display=inline>\frac{5 + 3\sqrt{5}}{5}</math>
| 1.447
| <math display=inline>- \frac{11 + 4\sqrt{5}}{41}</math>
| <math display=inline>- \frac{11 + 4\sqrt{5}}{41}</math>
|}
Other dimensions
A generalized -dimensional "bipyramid" is any -polytope constructed from an -polytope base lying in a hyperplane, with every base vertex connected by an edge to two apex vertices. If the -polytope is a regular polytope and the apices are equidistant from its center along the line perpendicular to the base hyperplane, it will have identical pyramidal facets.
A 2-dimensional analog of a right symmetric bipyramid is formed by joining two congruent isosceles triangles base-to-base to form a rhombus. More generally, a kite is a 2-dimensional analog of a (possibly asymmetric) right bipyramid, and any quadrilateral is a 2-dimensional analog of a general bipyramid.
See also
*Trapezohedron
Notes
restricts right pyramids to those with a tangential polygon for a base, with the apices on a line perpendicular to the base and passing through the incenter.}}
}}
Citations
Works Cited
* Chapter 4: Duals of the Archimedean polyhedra, prisms and antiprisms
*
External links
*
*
*[http://www.mathconsult.ch/showroom/unipoly/ The Uniform Polyhedra]
*[http://www.georgehart.com/virtual-polyhedra/vp.html Virtual Reality Polyhedra] The Encyclopedia of Polyhedra
**VRML models [http://www.georgehart.com/virtual-polyhedra/alphabetic-list.html (George Hart)] [http://www.georgehart.com/virtual-polyhedra/vrml/triangular_dipyramid.wrl <3>] [http://www.georgehart.com/virtual-polyhedra/vrml/octahedron.wrl <4>] [http://www.georgehart.com/virtual-polyhedra/vrml/pentagonal_dipyramid.wrl <5>] [http://www.georgehart.com/virtual-polyhedra/vrml/hexagonal_dipyramid.wrl <6>] [https://web.archive.org/web/20150203062131/http://www.georgehart.com/virtual-polyhedra/vrml/heptagonal_dipyramid.wrl <7>] [http://www.georgehart.com/virtual-polyhedra/vrml/octagonal_dipyramid.wrl <8>] [http://www.georgehart.com/virtual-polyhedra/vrml/enneagonal_dipyramid.wrl <9>] [http://www.georgehart.com/virtual-polyhedra/vrml/decagonal_dipyramid.wrl <10>]
***[http://www.georgehart.com/virtual-polyhedra/conway_notation.html Conway Notation for Polyhedra] Try: "dPn", where n'' = 3, 4, 5, 6, ... Example: "dP4" is an octahedron.
Category:Polyhedra | https://en.wikipedia.org/wiki/Bipyramid | 2025-04-05T18:26:42.027768 |
4157 | Brown University | | former_names = Rhode Island College (1764–1804)
| type = Private research university
| accreditation = NECHE
| academic_affiliations =
| endowment $7.2 billion (2024)
| budget $1.28 billion (2023)
| president = Christina Paxson
| provost = Francis J. Doyle III
| students 10,737
| city = Providence
| state = Rhode Island
| country = United States
| coor
| campus = Midsize city
| campus_size =
| colors
| mascot = Bruno the Bear
| athletics_nickname = Bears
| sporting_affiliations =
| website = [https://www.brown.edu/ brown.edu]
| logo = Brown University logo.svg
| logo_upright = .8
| free_label2 = Newspaper
| free2 = The Brown Daily Herald
| free_label = Other campuses
| free =
}}
Brown University is a private Ivy League research university in Providence, Rhode Island, United States. It is the seventh-oldest institution of higher education in the US, founded in 1764 as the College in the English Colony of Rhode Island and Providence Plantations. One of nine colonial colleges chartered before the American Revolution, it was the first US college to codify that admission and instruction of students was to be equal regardless of the religious affiliation of students.
The university is home to the oldest applied mathematics program in the country and oldest engineering program in the Ivy League. It was one of the early doctoral-granting institutions in the U.S., adding masters and doctoral studies in 1887. In 1969, it adopted its Open Curriculum after student lobbying, which eliminated mandatory general education distribution requirements. In 1971, Brown's coordinate women's institution, Pembroke College, was fully merged into the university.
The university comprises the College, the Graduate School, Alpert Medical School, the School of Engineering, the School of Public Health and the School of Professional Studies. Its international programs are organized through the Watson Institute for International and Public Affairs, and it is academically affiliated with the Marine Biological Laboratory and the Rhode Island School of Design, which offers undergraduate and graduate dual degree programs. Brown's main campus is in the College Hill neighborhood of Providence. The university is surrounded by a federally listed architectural district with a concentration of Colonial-era buildings. Benefit Street has one of America's richest concentrations of 17th- and 18th-century architecture. Undergraduate admissions are among the most selective in the country, with an acceptance rate of 5% for the class of 2026.
, 11 Nobel Prize winners, 1 Fields Medalist, 7 National Humanities Medalists, and 11 National Medal of Science laureates have been affiliated with Brown as alumni, faculty, or researchers. Alumni also include 27 Pulitzer Prize winners, 21 billionaires, (1994), (1996), Andres Santo Domingo (2000), İpek Kıraç (2007), Evan Wallace (2012), Akash Ambani (2013), Devin Finzer (2013), Dylan Field (Class of 2013½), |name |group}} 4 U.S. Secretaries of State, over 100 members of the United States Congress, 58 Rhodes Scholars, 22 MacArthur Genius Fellows, and 38 Olympic medalists.
History
Foundation and charter
In 1761, three residents of Newport, Rhode Island, drafted a petition to the colony's General Assembly:
The three petitioners were Ezra Stiles, pastor of Newport's Second Congregational Church and future president of Yale University; William Ellery Jr., future signer of the United States Declaration of Independence; and Josias Lyndon, future governor of the colony. Stiles and Ellery later served as co-authors of the college's charter two years later. The editor of Stiles's papers observes, "This draft of a petition connects itself with other evidence of Dr. Stiles's project for a Collegiate Institution in Rhode Island, before the charter of what became Brown University." Isaac Backus, a historian of the New England Baptists and an inaugural trustee of Brown, wrote of the October 1762 resolution taken at Philadelphia:
In September 1764, the inaugural meeting of the corporation—the college's governing body—was held in Newport's Old Colony House. Governor Stephen Hopkins was chosen chancellor, former and future governor Samuel Ward vice chancellor, John Tillinghast treasurer, and Thomas Eyres secretary. The charter stipulated that the board of trustees should be composed of 22 Baptists, five Quakers, five Episcopalians, and four Congregationalists. Of the 12 Fellows, eight should be Baptists—including the college president—"and the rest indifferently of any or all Denominations." Other colleges had curricular strictures against opposing doctrines, while Brown's charter asserted, "Sectarian differences of opinions, shall not make any Part of the Public and Classical Instruction." The document additionally "recognized more broadly and fundamentally than any other [university charter] the principle of denominational cooperation."
stands on the right while the President's House sits on the left.]]
The college was founded as Rhode Island College, at the site of the First Baptist Church in Warren, Rhode Island. Manning was sworn in as the college's first president in 1765 and remained in the role until 1791. In 1766, the college authorized the Reverend Morgan Edwards to travel to Europe to "solicit Benefactions for this Institution". After the college was relocated to the city, work began on constructing its first building.
A building committee, organized by the corporation, developed plans for the college's first purpose-built edifice, finalizing a design on February 9, 1770. The subsequent structure, referred to as "The College Edifice" and later as University Hall, may have been modeled on Nassau Hall, built 14 years prior at the College of New Jersey. President Manning, an active member of the building process, was educated at Princeton and might have suggested that Brown's first building resemble that of his alma mater.
Brown family
(Class of 1786), the university was renamed in his honor.]]
Nicholas Brown, John Brown, Joseph Brown, and Moses Brown were instrumental in moving the college to Providence, constructing its first building, and securing its endowment. Joseph became a professor of natural philosophy at the college; John served as its treasurer from 1775 to 1796; and Nicholas Sr's son Nicholas Brown Jr. succeeded his uncle as treasurer from 1796 to 1825.
On September 8, 1803, the corporation voted, "That the donation of $5,000, if made to this College within one Year from the late Commencement, shall entitle the donor to name the College." The following year, the appeal was answered by College Treasurer Nicholas Brown Jr. In a letter dated September 6, 1804, Brown committed "a donation of Five Thousand Dollars to Rhode Island College, to remain in perpetuity as a fund for the establishment of a Professorship of Oratory and Belles Letters." In recognition of the gift, the corporation on the same day voted, "That this College be called and known in all future time by the Name of Brown University." Over the years, the benefactions of Nicholas Brown Jr., totaled nearly $160,000 and included funds for building Hope College (1821–22) and Manning Hall (1834–35).
In 1904, the John Carter Brown Library was established as an independently funded research library on Brown's campus; the library's collection was founded on that of John Carter Brown, son of Nicholas Brown Jr.
The Brown family was involved in various business ventures in Rhode Island, and accrued wealth both directly and indirectly from the transatlantic slave trade. The family was divided on the issue of slavery. John Brown had defended slavery, while Moses and Nicholas Brown Jr. were fervent abolitionists.
In 2003, under the tenure of President Ruth Simmons, the university established a steering committee to investigate these ties of the university to slavery and recommend a strategy to address them.
American Revolution
With British vessels patrolling Narragansett Bay in the fall of 1776, the college library was moved out of Providence for safekeeping. During the subsequent American Revolutionary War, Brown's University Hall was used to house French and other revolutionary troops led by General George Washington and the Comte de Rochambeau as they waited to commence the march of 1781 that led to the Siege of Yorktown and the Battle of the Chesapeake. This has been celebrated as marking the defeat of the British and the end of the war. The building functioned as barracks and hospital from December 10, 1776, to April 20, 1780, and as a hospital for French troops from June 26, 1780, to May 27, 1782. Two of Brown's founders, William Ellery and Stephen Hopkins signed the Declaration of Independence.
James Mitchell Varnum, who graduated from Brown with honors in 1769, served as one of General George Washington's Continental Army brigadier generals and later as major general in command of the entire Rhode Island militia. Varnum is noted as the founder and commander of the 1st Rhode Island Regiment, widely regarded as the first Black battalion in U.S. military history. David Howell, who graduated with an A.M. in 1769, served as a delegate to the Continental Congress from 1782 to 1785.Presidents
Nineteen individuals have served as presidents of the university since its founding in 1764. Since 2012, Christina Hull Paxson has served as president. Paxson had previously served as dean of Princeton University's School of Public and International Affairs and chair of Princeton's economics department. Paxson's immediate predecessor, Ruth Simmons, is noted as the first African American president of an Ivy League institution. Other presidents of note include academic, Vartan Gregorian; and philosopher and economist, Francis Wayland. New Curriculum
In 1966, the first Group Independent Study Project (GISP) at Brown was formed, involving 80 students and 15 professors. The GISP was inspired by student-initiated experimental schools, especially San Francisco State College, and sought ways to "put students at the center of their education" and "teach students how to think rather than just teaching facts".
Members of the GISP, Ira Magaziner and Elliot Maxwell published a paper of their findings titled, "Draft of a Working Paper for Education at Brown University."
In 1968, university president Ray Heffner established a Special Committee on Curricular Philosophy. Composed of administrators, the committee was tasked with developing specific reforms and producing recommendations. A report, produced by the committee, was presented to the faculty, which voted the New Curriculum into existence on May 7, 1969. Its key features included:
*Modes of Thought courses for first-year students
*The introduction of interdisciplinary courses
*The abandonment of "general education" distribution requirements
*The Satisfactory/No Credit (S/NC) grading option
*The ABC/No Credit grading system, which eliminated pluses, minuses, and D's; a grade of "No Credit" (equivalent to F's at other institutions) would not appear on external transcripts.
The Modes of Thought course was discontinued early on, but the other elements remain in place. In 2006, the reintroduction of plus/minus grading was proposed in response to concerns regarding grade inflation. The idea was rejected by the College Curriculum Council after canvassing alumni, faculty, and students, including the original authors of the Magaziner-Maxwell Report.
"Slavery and Justice" report
In 2003, then-university president Ruth Simmons launched a steering committee to research Brown's eighteenth-century ties to slavery. In October 2006, the committee released a report documenting its findings.
Titled "Slavery and Justice", the document detailed the ways in which the university benefited both directly and indirectly from the transatlantic slave trade and the labor of enslaved people. The report also included seven recommendations for how the university should address this legacy. Brown has since completed a number of these recommendations including the establishment of its Center for the Study of Slavery and Justice, the construction of its Slavery Memorial, and the funding of a $10 million permanent endowment for Providence Public Schools.
The "Slavery and Justice" report marked the first major effort by an American university to address its ties to slavery and prompted other institutions to undertake similar processes.Coat of arms
Brown's coat of arms was created in 1834. The prior year, president Francis Wayland had commissioned a committee to update the school's original seal to match the name the university had adopted in 1804. Central in the coat of arms is a white escutcheon divided into four sectors by a red cross. Within each sector of the coat of arms lies an open book. Above the shield is a crest consisting of the upper half of a sun in splendor among the clouds atop a red and white torse. Campus
Brown is the largest institutional landowner in Providence, with properties on College Hill and in the Jewelry District. The university was built contemporaneously with the eighteenth and nineteenth-century precincts surrounding it, making Brown's campus tightly integrated into Providence's urban fabric. Among the noted architects who have shaped Brown's campus are McKim, Mead & White, Philip Johnson, Rafael Viñoly, Diller Scofidio + Renfro, and Robert A. M. Stern.
Main campus
Brown's main campus, comprises 235 buildings and in the East Side neighborhood of College Hill. The university's central campus sits on a block bounded by Waterman, Prospect, George, and Thayer Streets; newer buildings extend northward, eastward, and southward. Brown's core, historic campus, constructed primary between 1770 and 1926, is defined by three greens: the Front or Quiet Green, the Middle or College Green, and the Ruth J. Simmons Quadrangle (historically known as Lincoln Field). A brick and wrought-iron fence punctuated by decorative gates and arches traces the block's perimeter. This section of campus is primarily Georgian and Richardsonian Romanesque in its architectural character. A Brown superstition holds that students who walk through the central gate a second time prematurely will not graduate, although walking backward is said to cancel the hex.
John Hay Library
is home to rare books, special collections, and the university archives.]]The John Hay Library is the second oldest library on campus. Opened in 1910, the library is named for John Hay (class of 1858), private secretary to Abraham Lincoln and Secretary of State under William McKinley and Theodore Roosevelt. The construction of the building was funded in large part by Hay's friend, Andrew Carnegie, who contributed half of the $300,000 cost of construction.
The John Hay Library serves as the repository of the university's archives, rare books and manuscripts, and special collections. Noteworthy among the latter are the Anne S. K. Brown Military Collection (described as "the foremost American collection of material devoted to the history and iconography of soldiers and soldiering"), the Harris Collection of American Poetry and Plays (described as "the largest and most comprehensive collection of its kind in any research library"), the Lownes Collection of the History of Science (described as "one of the three most important private collections of books of science in America"), and the papers of H. P. Lovecraft. The Hay Library is home to one of the broadest collections of incunabula in the Americas, one of Brown's two Shakespeare First Folios, the manuscript of George Orwell's Nineteen Eighty-Four, and three books bound in human skin. John Carter Brown Library
is one of the world's leading repositories of books, maps, and manuscripts relating to the colonial Americas.]]
Founded in 1846, the John Carter Brown Library is generally regarded as the world's leading collection of primary historical sources relating to the exploration and colonization of the Americas. While administered and funded separately from the university, the library has been owned by Brown and located on its campus since 1904.
The library contains the best preserved of the eleven surviving copies of the Bay Psalm Book—the earliest extant book printed in British North America and the most expensive printed book in the world. Other holdings include a Shakespeare First Folio and the world's largest collection of 16th-century Mexican texts.
, are located in Manning Hall.]]
Haffenreffer Museum
The exhibition galleries of the Haffenreffer Museum of Anthropology, Brown's teaching museum, are located in Manning Hall on the campus's main green. Its one million artifacts, available for research and educational purposes, are located at its Collections Research Center in Bristol, Rhode Island. The museum's goal is to inspire creative and critical thinking about culture by fostering an interdisciplinary understanding of the material world. It provides opportunities for faculty and students to work with collections and the public, teaching through objects and programs in classrooms and exhibitions. The museum sponsors lectures and events in all areas of anthropology and also runs an extensive program of outreach to local schools. Annmary Brown Memorial
The Annmary Brown Memorial was constructed from 1903 to 1907 by the politician, Civil War veteran, and book collector General Rush Hawkins, as a mausoleum for his wife, Annmary Brown, a member of the Brown family. In addition to its crypt—the final repository for Brown and Hawkins—the Memorial includes works of art from Hawkins's private collection, including paintings by Angelica Kauffman, Peter Paul Rubens, Gilbert Stuart, Giovanni Battista Tiepolo, Benjamin West, and Eastman Johnson, among others. His collection of over 450 incunabula was relocated to the John Hay Library in 1990. Today the Memorial is home to Brown's Medieval Studies and Renaissance Studies programs. The Walk The Walk, a landscaped pedestrian corridor, connects the Pembroke Campus to the main campus. It runs parallel to Thayer Street and serves as a primary axis of campus, extending from Ruth Simmons Quadrangle at its southern terminus to the Meeting Street entrance to the Pembroke Campus at its northern end. The walk is bordered by departmental buildings as well as the Lindemann Performing Arts Center and Granoff Center for the Creative Arts
The corridor is home to public art including sculptures by Maya Lin and Tom Friedman.Pembroke campus
The Women's College in Brown University, known as Pembroke College, was founded in October 1891. Upon its 1971 merger with the College of Brown University, Pembroke's campus was absorbed into the larger Brown campus. The Pembroke campus is bordered by Meeting, Brown, Bowen, and Thayer Streets and sits three blocks north of Brown's central campus. The campus is dominated by brick architecture, largely of the Georgian and Victorian styles. The west side of the quadrangle comprises Pembroke Hall (1897), Smith-Buonanno Hall (1907), and Metcalf Hall (1919), while the east side comprises Alumnae Hall (1927) and Miller Hall (1910). The quadrangle culminates on the north with Andrews Hall (1947).
East Campus, centered on Hope and Charlesfield streets, originally served as the campus of Bryant University. In 1969, as Bryant was preparing to relocate to Smithfield, Rhode Island, Brown purchased their Providence campus for $5 million. The transaction expanded the Brown campus by and 26 buildings. In 1971, Brown renamed the area East Campus. Today, the area is largely used for dormitories.
Thayer Street runs through Brown's main campus. As a commercial corridor frequented by students, Thayer is comparable to Harvard Square or Berkeley's Telegraph Avenue. Wickenden Street, in the adjacent Fox Point neighborhood, is another commercial street similarly popular among students.
Built in 1925, Brown Stadium—the home of the school's football team—is located approximately a mile and a half northeast of the university's central campus. Marston Boathouse, the home of Brown's crew teams, lies on the Seekonk River, to the southeast of campus. Brown's sailing teams are based out of the Ted Turner Sailing Pavilion at the Edgewood Yacht Club in adjacent Cranston.
Since 2011, Brown's Warren Alpert Medical School has been located in Providence's historic Jewelry District, near the medical campus of Brown's teaching hospitals, Rhode Island Hospital and the Women and Infants Hospital of Rhode Island. Other university facilities, including molecular medicine labs and administrative offices, are likewise located in the area.
Brown's School of Public Health occupies a landmark modernist building along the Providence River. Other Brown properties include the Mount Hope Grant in Bristol, Rhode Island, an important Native American site noted as a location of King Philip's War. Brown's Haffenreffer Museum of Anthropology Collection Research Center, particularly strong in Native American items, is located in the Mount Hope Grant. Sustainability Brown has committed to "minimize its energy use, reduce negative environmental impacts, and promote environmental stewardship." Since 2010, the university has required all new buildings meet LEED silver standards. Between 2007 and 2018, Brown reduced its greenhouse emissions by 27 percent; the majority of this reduction is attributable to the university's Thermal Efficiency Project which converted its central heating plant from a steam-powered system to a hot water-powered system.
In 2020, Brown announced it had sold 90 percent of its fossil fuel investments as part of a broader divestment from direct investments and managed funds that focus on fossil fuels. In 2021, the university adopted the goal of reducing quantifiable campus emissions by 75 percent by 2025 and achieving carbon neutrality by 2040. Brown is a member of the Ivy Plus Sustainability Consortium, through which it has committed to best-practice sharing and the ongoing exchange of campus sustainability solutions along with other member institutions.
According to the A. W. Kuchler U.S. potential natural vegetation types, Brown would have a dominant vegetation type of Appalachian Oak (104) with a dominant vegetation form of Eastern Hardwood Forest (25).AcademicsThe College
in the Venetian Gothic style to house Brown's library.]]
Founded in 1764, The College is Brown's oldest school. About 7,200 undergraduate students are enrolled in the college , and 81 concentrations are offered. For the graduating class of 2020, the most popular concentrations were Computer Science, Economics, Biology, History, Applied Mathematics, International Relations, and Political Science. A quarter of Brown undergraduates complete more than one concentration before graduating. If the existing programs do not align with their intended curricular interests, undergraduates may design and pursue independent concentrations.
Around 35 percent of undergraduates pursue graduate or professional study immediately, 60 percent within 5 years, and 80 percent within 10 years. For the Class of 2009, 56 percent of all undergraduate alumni have since earned graduate degrees. Among undergraduate alumni who go on to receive graduate degrees, the most common degrees earned are J.D. (16%), M.D. (14%), M.A. (14%), M.Sc. (14%), and Ph.D. (11%). The most common institutions from which undergraduate alumni earn graduate degrees are Brown University, Columbia University, and Harvard University.
The highest fields of employment for undergraduate alumni ten years after graduation are education and higher education (15%), medicine (9%), business and finance (9%), law (8%), and computing and technology (7%). The two institutions partner to provide various student-life services and the two student bodies compose a synergy in the College Hill cultural scene. Dual Degree Program After several years of discussion between the two institutions and several students pursuing dual degrees unofficially, Brown and RISD formally established a five-year dual degree program in 2007, with the first class matriculating in the fall of 2008. The Brown|RISD Dual Degree Program, among the most selective in the country, offered admission to 20 of the 725 applicants for the class entering in autumn 2020, for an acceptance rate of 2.7%. The program combines the complementary strengths of the two institutions, integrating studio art and design at RISD with Brown's academic offerings. Students are admitted to the Dual Degree Program for a course lasting five years and culminating in both the Bachelor of Arts (A.B.) or Bachelor of Science (Sc.B.) degree from Brown and the Bachelor of Fine Arts (B.F.A.) degree from RISD. Prospective students must apply to the two schools separately and be accepted by separate admissions committees. Their application must then be approved by a third Brown|RISD joint committee.
, designed by Diller Scofidio + Renfro<nowiki>, hosts the annual Brown|RISD Dual Degree exhibition</nowiki>.]]
Admitted students spend the first year in residence at RISD completing its first-year Experimental and Foundation Studies curriculum while taking up to three Brown classes. Students spend their second year in residence at Brown, during which students take mainly Brown courses while starting on their RISD major requirements. In the third, fourth, and fifth years, students can elect to live at either school or off-campus, and course distribution is determined by the requirements of each student's unique combination of Brown concentration and RISD major. Program participants are noted for their creative and original approach to cross-disciplinary opportunities, combining, for example, industrial design with engineering, or anatomical illustration with human biology, or philosophy with sculpture, or architecture with urban studies. An annual "BRDD Exhibition" is a well-publicized and heavily attended event, drawing interest and attendees from the broader world of industry, design, the media, and the fine arts.
MADE Program
In 2020, the two schools announced the establishment of a new joint Master of Arts in Design Engineering program. Abbreviated as MADE, the program intends to combine RISD's programs in industrial design with Brown's programs in engineering. The program is administered through Brown's School of Engineering and RISD's Architecture and Design Division.Theatre and playwritingBrown's theatre and playwriting programs are among the best-regarded in the country. Six Brown graduates have received the Pulitzer Prize for Drama; Alfred Uhry '58, Lynn Nottage '86, Ayad Akhtar '93, Nilo Cruz '94, Quiara Alegría Hudes '04, and Jackie Sibblies Drury MFA '04. In American Theater magazine's 2009 ranking of the most-produced American plays, Brown graduates occupied four of the top five places—Peter Nachtrieb '97, Rachel Sheinkin '89, Sarah Ruhl '97, and Stephen Karam '02.
The undergraduate concentration encompasses programs in theatre history, performance theory, playwriting, dramaturgy, acting, directing, dance, speech, and technical production. Applications for doctoral and master's degree programs are made through the University Graduate School. Master's degrees in acting and directing are pursued in conjunction with the Brown/Trinity Rep MFA program, which partners with the Trinity Repertory Company, a local regional theatre.
Writing programs
Writing at Brown—fiction, non-fiction, poetry, playwriting, screenwriting, electronic writing, mixed media, and the undergraduate writing proficiency requirement—is catered for by various centers and degree programs, and a faculty that has long included nationally and internationally known authors. The undergraduate concentration in literary arts offers courses in fiction, poetry, screenwriting, literary hypermedia, and translation. Graduate programs include the fiction and poetry MFA writing programs in the literary arts department and the MFA playwriting program in the theatre arts and performance studies department. The non-fiction writing program is offered in the English department. Screenwriting and cinema narrativity courses are offered in the departments of literary arts and modern culture and media. The undergraduate writing proficiency requirement is supported by the Writing Center.
Author prizewinners
Alumni authors take their degrees across the spectrum of degree concentrations, but a gauge of the strength of writing at Brown is the number of major national writing prizes won. To note only winners since the year 2000: Pulitzer Prize for Fiction-winners Jeffrey Eugenides '82 (2003), Marilynne Robinson '66 (2005), and Andrew Sean Greer '92 (2018); British Orange Prize-winners Marilynne Robinson '66 (2009) and Madeline Miller '00 (2012); Pulitzer Prize for Drama-winners Nilo Cruz '94 (2003), Lynn Nottage '86 (twice, 2009, 2017), Quiara Alegría Hudes '04 (2012), Ayad Akhtar '93 (2013), and Jackie Sibblies Drury MFA '04 (2019); Pulitzer Prize for Biography-winners David Kertzer '69 (2015) and Benjamin Moser '98 (2020); Pulitzer Prize for Journalism-winners James Risen '77 (2006), Gareth Cook '91 (2005), Tony Horwitz '80 (1995), Usha Lee McFarling '89 (2007), David Rohde '90 (1996), Kathryn Schulz '96 (2016), and Alissa J. Rubin '80 (2016); Pulitzer Prize for General Nonfiction-winner James Forman Jr. '88 (2018); Pulitzer Prize for History-winner Marcia Chatelain PhD '08 (2021); Pulitzer Prize for Criticism-winner Salamishah Tillet MAT '97 (2022); and Pulitzer Prize for Poetry-winner Peter Balakian PhD '80 (2016)
Computer science
]]
Brown began offering computer science courses through the departments of Economics and Applied Mathematics in 1956 when it acquired an IBM machine. Brown added an IBM 650 in January 1958, the only one of its type between Hartford and Boston. In 1960, Brown opened its first dedicated computer building, the Brown University Computing Laboratory. The facility, designed by Philip Johnson, received an IBM 7070 computer the following year. The first undergraduate Computer Science degrees were awarded in 1974. Brown granted computer sciences full Departmental status in 1979. In 2009, IBM and Brown announced the installation of a supercomputer (by teraflops standards), the most powerful in the southeastern New England region.
In the 1960s, Andries van Dam, along with Ted Nelson and Bob Wallace invented The Hypertext Editing Systems, HES and FRESS while at Brown. Nelson coined the word hypertext while Van Dam's students helped originate XML, XSLT, and related Web standards. Among the school's computer science alumni are principal architect of the Classic Mac OS, Andy Hertzfeld; principal architect of the Intel 80386 and Intel 80486 microprocessors, John Crawford; former CEO of Apple, John Sculley; and digital effects programmer Masi Oka. Other alumni include former CS department head at MIT, John Guttag; software-defined networking pioneer Scott Shenker; Workday founder, Aneel Bhusri; MongoDB founder Eliot Horowitz; Figma founders Dylan Field and Evan Wallace (the latter of whom also created esbuild); OpenSea founder Devin Finzer; and Edward D. Lazowska, professor and Bill & Melinda Gates Foundation Chair emeritus at the University of Washington.
Between 2012 and 2018, the number of concentrators in CS tripled. In 2017, computer science overtook economics as the school's most popular undergraduate concentration.
Applied mathematics
Brown's program in applied mathematics was established in 1941 making it the oldest such program in the United States. The division is highly ranked and regarded nationally. Among the 67 recipients of the Timoshenko Medal, 22 have been affiliated with Brown's applied mathematics division as faculty, researchers, or students.
The Joukowsky Institute for Archaeology and the Ancient World
Established in 2004, the Joukowsky Institute for Archaeology and the Ancient World is Brown's interdisciplinary research center for archeology and ancient studies. The institute pursues fieldwork, excavations, regional surveys, and academic study of the archaeology and art of the ancient Mediterranean, Egypt, and Western Asia from the Levant to the Caucasus. The institute has a very active fieldwork profile, with faculty-led excavations and regional surveys presently in Petra (Jordan), Abydos (Egypt), Turkey, Sudan, Italy, Mexico, Guatemala, Montserrat, and Providence.
The Joukowsky Institute's faculty includes cross-appointments from the departments of Egyptology, Assyriology, Classics, Anthropology, and History of Art and Architecture. Faculty research and publication areas include Greek and Roman art and architecture, landscape archaeology, urban and religious architecture of the Levant, Roman provincial studies, the Aegean Bronze Age, and the archaeology of the Caucasus. The institute offers visiting teaching appointments and postdoctoral fellowships which have, in recent years, included Near Eastern Archaeology and Art, Classical Archaeology and Art, Islamic Archaeology and Art, and Archaeology and Media Studies.
Egyptology and Assyriology
Facing the Joukowsky Institute, across the Front Green, is the Department of Egyptology and Assyriology, formed in 2006 by the merger of Brown's departments of Egyptology and History of Mathematics. It is one of only a handful of such departments in the United States. The curricular focus is on three principal areas: Egyptology, Assyriology, and the history of the ancient exact sciences (astronomy, astrology, and mathematics). Many courses in the department are open to all Brown undergraduates without prerequisites and include archaeology, languages, history, and Egyptian and Mesopotamian religions, literature, and science. Students concentrating in the department choose a track of either Egyptology or Assyriology. Graduate-level study comprises three tracks to the doctoral degree: Egyptology, Assyriology, or the History of the Exact Sciences in Antiquity. The Watson Institute for International and Public Affairs
The Watson Institute for International and Public Affairs, Brown's center for the study of global Issues and public affairs, is one of the leading institutes of its type in the country. The institute occupies facilities designed by Uruguayan architect Rafael Viñoly and Japanese architect Toshiko Mori. The institute was initially endowed by Thomas Watson Jr. (Class of 1937), former Ambassador to the Soviet Union and longtime president of IBM.
Institute faculty and faculty emeritus include Italian prime minister and European Commission president Romano Prodi, Brazilian president Fernando Henrique Cardoso, Chilean president Ricardo Lagos Escobar, Mexican novelist and statesman Carlos Fuentes, Brazilian statesman and United Nations commission head Paulo Sérgio Pinheiro, Indian foreign minister and ambassador to the United States Nirupama Rao, American diplomat and Dayton Peace Accords author Richard Holbrooke (Class of 1962), and Sergei Khrushchev, editor of the papers of his father Nikita Khrushchev, leader of the Soviet Union.
The institute's curricular interest is organized into the principal themes of development, security, and governance—with further focuses on globalization, economic uncertainty, security threats, environmental degradation, and poverty. Six Brown undergraduate concentrations are hosted by the Watson Institute: Development Studies, International and Public Affairs, International Relations, Latin American and Caribbean Studies, Middle East Studies, Public Policy, and South Asian Studies. Graduate programs offered at the Watson Institute include the Graduate Program in Development (Ph.D.) and the Master of Public Affairs (M.P.A) Program. The institute also offers postdoctoral, professional development, and global outreach programming. In support of these programs, the institute houses various centers, including the Brazil Initiative, Brown-India Initiative, China Initiative, Middle East Studies Center, The Center for Latin American and Caribbean Studies (CLACS), and the Taubman Center for Public Policy. In recent years, the most internationally cited product of the Watson Institute has been its Costs of War Project, first released in 2011 and continuously updated since. The project comprises a team of economists, anthropologists, political scientists, legal experts, and physicians, and seeks to calculate the economic costs, human casualties, and impact on civil liberties of the wars in Iraq, Afghanistan, and Pakistan since 2001.
The School of Engineering
]]
Established in 1847, Brown's engineering program is the oldest in the Ivy League and the third oldest civilian engineering program in the country. In 1916, Brown's departments of electrical, mechanical, and civil engineering were merged into a single Division of Engineering. In 2010 the division was elevated to a School of Engineering.
Engineering at Brown is especially interdisciplinary. The school is organized without the traditional departments or boundaries found at most schools and follows a model of connectivity between disciplines—including biology, medicine, physics, chemistry, computer science, the humanities, and the social sciences. The school practices an innovative clustering of faculties in which engineers team with non-engineers to bring a convergence of ideas.
Student teams have launched two CubeSats with the support of the School of Engineering. Brown Space Engineering developed EQUiSat a 1U satellite, and another interdisciplinary team developed SBUDNIC a 3U satellite.
IE Brown Executive MBA Dual Degree Program
Since 2009, Brown has developed an Executive MBA program in conjunction with one of the leading Business Schools in Europe, IE Business School in Madrid. This relationship has since strengthened resulting in both institutions offering a dual degree program. In this partnership, Brown provides its traditional coursework while IE provides most of the business-related subjects making a differentiated alternative program to other Ivy League's EMBAs. The cohort typically consists of 25–30 EMBA candidates from some 20 countries. Classes are held in Providence, Madrid, Cape Town and Online.
.]]
The Pembroke Center
The Pembroke Center for Teaching and Research on Women was established at Brown in 1981 by Joan Wallach Scott as an interdisciplinary research center on gender. The center is named for Pembroke College, Brown's former women's college, and is affiliated with Brown's Sarah Doyle Women's Center. The Pembroke Center supports Brown's undergraduate concentration in Gender and Sexuality Studies, post-doctoral research fellowships, the annual Pembroke Seminar, and other academic programs. It also manages various collections, archives, and resources, including the Elizabeth Weed Feminist Theory Papers and the Christine Dunlap Farnham Archive.
The Graduate School
on the Main Green ]]
Brown introduced graduate courses in the 1870s and granted its first advanced degrees in 1888. The university established a Graduate Department in 1903 and a full Graduate School in 1927.
With an enrollment of approximately 2,600 students, the school currently offers 33 and 51 master's and doctoral programs, respectively. The school additionally offers a number of fifth-year master's programs. Overall, admission to the Graduate School is most competitive with an acceptance rate averaging at approximately 9 percent in recent years. Carney Institute for Brain Science
The Robert J. & Nancy D. Carney Institute for Brain Science is Brown's cross-departmental neuroscience research institute. The institute's core focus areas include brain-computer interfaces and computational neuroscience; additional areas of focus include research into mechanisms of cell death with the interest of developing therapies for neurodegenerative diseases.
The Carney Institute was founded by John Donoghue in 2009 as the Brown Institute for Brain Science and renamed in 2018 in recognition of a $100 million gift. The donation, one of the largest in the university's history, established the institute as one of the best-endowed university neuroscience programs in the country.Alpert Medical School
building on Richmond Street]]Established in 1811, Brown's Alpert Medical School is the fourth oldest medical school in the Ivy League. In January 2007, entrepreneur and philanthropist Warren Alpert donated $100 million to the school. In recognition of the gift, the school's name was changed to the Warren Alpert Medical School of Brown University.
In 2020, U.S. News & World Report ranked Brown's medical school the 9th most selective in the country, with an acceptance rate of 2.8%. U.S. News ranks the school 38th for research and 35th for primary care.
Brown's medical school is known especially for its eight-year Program in Liberal Medical Education (PLME), an eight-year combined baccalaureate-M.D. medical program. Inaugurated in 1984, the program is one of the most selective and renowned programs of its type in the country, offering admission to only 2% of applicants in 2021.
Since 1976, the Early Identification Program (EIP) has encouraged Rhode Island residents to pursue careers in medicine by recruiting sophomores from Providence College, Rhode Island College, the University of Rhode Island, and Tougaloo College. In 2004, the school once again began to accept applications from premedical students at other colleges and universities via AMCAS like most other medical schools. The medical school also offers M.D./PhD, M.D./M.P.H. and M.D./M.P.P. dual degree programs.
School of Public Health
viewed from across the Providence River]]
Brown's School of Public Health grew out of the Alpert Medical School's Department of Community Health and was officially founded in 2013 as an independent school. The school issues undergraduate (A.B., Sc.B.), graduate (M.P.H., Sc.M., A.M.), doctoral (Ph.D.), and dual-degrees (M.P.H./M.P.A., M.D./M.P.H.).
Online programs
The Brown University School of Professional Studies currently offers blended learning Executive master's degrees in Healthcare Leadership, Cyber Security, and Science and Technology Leadership. The master's degrees are designed to help students who have a job and life outside of academia to progress in their respective fields. The students meet in Providence every 6–7 weeks for a weekly seminar each trimester.
The university has also invested in MOOC development starting in 2013, when two courses, ''Archeology's Dirty Little Secrets and The Fiction of Relationship, both of which received thousands of students. However, after a year of courses, the university broke its contract with Coursera and revamped its online persona and MOOC development department. By 2017, the university released new courses on edx, two of which were The Ethics of Memory and Artful Medicine: Art's Power to Enrich Patient Care. In January 2018, Brown published its first "game-ified" course called Fantastic Places, Unhuman Humans: Exploring Humanity Through Literature, which featured out-of-platform games to help learners understand materials, as well as a story-line that immerses users into a fictional world to help characters along their journey.
Admissions and financial aid
Undergraduate
Undergraduate admission to Brown University is considered "most selective" by U.S. News & World Report.'' For the undergraduate class of 2026, Brown received 50,649 applications—the largest applicant pool in the university's history and a 9% increase from the prior year. Of these applicants, 2,560 were admitted for an acceptance rate of 5.0%, the lowest in the university's history.
In 2021, the university reported a yield rate of 69%. For the academic year 2019–20 the university received 2,030 transfer applications, of which 5.8% were accepted.
Brown's admissions policy is currently stipulated need-blind for all domestic first-year applicants, but will be extended to international first-year applicants starting with the Class of 2029. In 2017, Brown announced that loans would be eliminated from all undergraduate financial aid awards starting in 2018–2019, as part of a new $30 million campaign called the Brown Promise. In 2016–17, the university awarded need-based scholarships worth $120.5 million. The average need-based award for the class of 2020 was $47,940. Graduate In 2017, the Graduate School accepted 11% of 9,215 applicants. In 2021, Brown received a record 948 applications for roughly 90 spots in its Master of Public Health Degree.
In 2020, U.S. News ranked Brown's Warren Alpert Medical School the 9th most selective in the country, with an acceptance rate of 2.8 percent.Rankings
{| class="wikitable floatright plainrowheaders"
|+USNWR graduate school rankings (2022)
! scope="row" | Engineering
| 53
|-
! scope="row" | Medicine (Primary Care)
| 14
|-
! scope="row" | Medicine (Research)
| 35
|}
{|class="wikitable floatright plainrowheaders"
|+USNWR departmental rankings (2022) For their 2021 rankings, The Wall Street Journal/Times Higher Education ranked Brown 5th in the "Best Colleges 2021" edition.
The Forbes magazine annual ranking of "America's Top Colleges 2022"—which ranked 600 research universities, liberal arts colleges and service academies—ranked Brown 19th overall and 18th among universities.
U.S. News & World Report ranked Brown 9th among national universities in its 2023 edition. The 2022 edition also ranked Brown 2nd for undergraduate teaching, 25th in Most Innovative Schools, and 14th in Best Value Schools.
Washington Monthly ranked Brown 30th in 2024 among 438 national universities in the U.S. based on its contribution to the public good, as measured by social mobility, research, and promoting public service.
In 2022, U.S. News & World Report ranks Brown 129th globally.
In 2014, Forbes magazine ranked Brown 7th on its list of "America's Most Entrepreneurial Universities." The Forbes analysis looked at the ratio of "alumni and students who have identified themselves as founders and business owners on LinkedIn" and the total number of alumni and students. LinkedIn particularized the Forbes rankings, placing Brown third (between MIT and Princeton) among "Best Undergraduate Universities for Software Developers at Startups." LinkedIn's methodology involved a career-path examination of "millions of alumni profiles" in its membership database.
In 2016, 2017, 2018, and 2021 the university produced the most Fulbright recipients of any university in the nation. Brown has also produced the 7th most Rhodes Scholars of all colleges and universities in the United States.
In 2025 the university ranked 229 of 257 top colleges in free speech rankings by the Foundation for Individual Rights and Expression and "College Pulse," after ranking at 69 in 2024 and at 114 in 2022/2023.ResearchBrown is a member of the Association of American Universities since 1933 and is classified among "R1: Doctoral Universities – Very High Research Activity". In FY 2017, Brown spent $212.3 million on research and was ranked 103rd in the United States by total R&D expenditure by National Science Foundation. In 2021 Brown's School of Public Health received the 4th most funding in NIH awards among schools of public health in the U.S.Student life{| class"wikitable sortable mw-collapsible floatright collapsible" ; text-align:right; font-size:80%;"
|+ style="font-size:90%" |Student body composition as of May 2, 2022
|-
! Race and ethnicity
! colspan"2" data-sort-typenumber |Total
|-
| White
|align=right|
|-
| Asian
|align=right|
|-
| Hispanic
|align=right|
|-
| Foreign national
|align=right|
|-
| Other
|align=right|
|-
| Black
|align=right|
|-
! colspan"4" data-sort-typenumber |Economic diversity
|-
| Low-income
|align=right|
|-
| Affluent
|align=right|
|}
Campus safety
In 2014, Brown tied with the University of Connecticut for the highest number of reported rapes in the nation, with its "total of reports of rape" on their main campus standing at 43. However, such rankings have been criticized for failing to account for how different campus environments can encourage or discourage individuals from reporting sexual assault cases, thereby affecting the number of reported rapes.
Spring weekend
Established in 1950, Spring Weekend is an annual spring music festival for students. Historical performers at the festival have included Ella Fitzgerald, Dizzy Gillespie, Ray Charles, Bob Dylan, Janis Joplin, Bruce Springsteen, and U2. More recent headliners include Kendrick Lamar, Young Thug, Daniel Caesar, Anderson .Paak, Mitski, Aminé, and Mac DeMarco. Since 1960, Spring Weekend has been organized by the student-run Brown Concert Agency.
Residential and Greek societies
Approximately 12 percent of Brown students participate in Greek Life. The university recognizes thirteen active Greek organizations. Since the early 1950s, all Greek organizations on campus have been located in Wriston Quadrangle.
Societies and clubs
, built 1890–1891, is used by Brown Space Engineering, a student group focused on aerospace engineering.]]
The earliest societies at Brown were devoted to oration and debate. The Pronouncing Society is mentioned in the diary of Solomon Drowne, class of 1773, who was voted its president in 1771. Older societies generally aligned with Federalists while younger societies generally leaned Republican. The 2023 LGBTQ+ self-identification level was an increase, up from 14% LGBT identification in 2010. The center houses various programs for students to share their knowledge and engage in discussion. Programs include the Third World Transition Program, the Minority Peer Counselor Program, the Heritage Series, and other student-led initiatives. Additionally, the BCSC hopes to foster community among the students it serves by providing spaces for students to meet and study.
The Sarah Doyle Women's Center aims to provide a space for members of the Brown community to examine and explore issues surrounding gender. The center was named after one of the first women to attend Brown, Sarah Doyle. The center emphasizes intersectionality in its conversations on gender, encouraging people to see gender as present and relevant in various aspects of life. The center hosts programs and workshops in order to facilitate dialogue and provide resources for students, faculty, and staff.
Other centers include the LGBTQ Center, the Undocumented, First-Generation College and Low-Income Student (U-FLi) Center, and the Curricular Resource Center.
Activism
1968 Black Student Walkout
On December 5, 1968, several Black women from Pembroke College initiated a walkout in protest of an atmosphere at the colleges described by Black students as a "stifling, frustrating, [and] degrading place for Black students" after feeling the colleges were non-responsive to their concerns. In total, 65 Black students participated in the walkout. Their principal demand was to increase Black student enrollment to 11% of the student populace, in an attempt to match that of the proportion in the US. This ultimately resulted in a 300% increase in Black enrollment the following year, but some demands have yet to be met.
Divestment from South Africa
In the mid-1980s, under student pressure, the university divested from certain companies involved in South Africa. Some students were still unsatisfied with partial divestment and began a fast in Manning Chapel and the university disenrolled them. In April 1987, "dozens" of students interrupted a university corporation meeting, leading to 20 being put on probation.Protest of speech by NYPD Commissioner Ray KellyIn 2013, students and Providence community members protested and disrupted a speech by then-NYPD Commissioner Raymond Kelly. The incident was cited by Greg Lukianoff, president of the Foundation for Individual Rights and Expression, as a high-profile example of a form of student protest questioning conceptions of free speech. The incident was also the subject of a short critical documentary in 2016 by Brown alumnus Rob Montz.
Israel-Gaza protests
In early November 2023, twenty students of Jewish background staged a sit in at University hall, resulting in their arrests. The students were protesting the Israel-Hamas war and calling for a ceasefire, as well as for the university to divest from companies that "facilitate the 'Israeli military occupation' in Gaza." In early December 2023, forty-one more students held a sit-in with similar demands, resulting in more arrests by the university. Nineteen students participated in an eight-day hunger strike preceding a corporation meeting in early February 2024 with the demand to present their case to corporation members.Athletics
seated second from right. White's appearance in an 1879 major league game may be the first person of color to play professional baseball, 68 years before Jackie Robinson.]]
Brown is a member of the Ivy League athletic conference, which is categorized as a Division I (top-level) conference of the National Collegiate Athletic Association (NCAA).
The Brown Bears has one of the largest university sports programs in the United States, sponsoring 32 varsity intercollegiate teams. Brown's athletic program is one of the U.S. News & World Report top 20—the "College Sports Honor Roll"—based on breadth of the program and athletes' graduation rates.
Brown's newest varsity team is women's rugby, promoted from club-sport status in 2014. Brown women's rowing has won 7 national titles between 1999 and 2011. Brown men's rowing perennially finishes in the top 5 in the nation, most recently winning silver, bronze, and silver in the national championship races of 2012, 2013, and 2014. The men's and women's crews have also won championship trophies at the Henley Royal Regatta and the Henley Women's Regatta. Brown's men's soccer is consistently ranked in the top 20 and has won 18 Ivy League titles overall; recent soccer graduates play professionally in Major League Soccer and overseas.
Brown football, under its most successful coach historically, Phil Estes, won Ivy League championships in 1999, 2005, and 2008. high-profile alumni of the football program include former Houston Texans head coach Bill O'Brien; former Penn State football coach Joe Paterno, Heisman Trophy namesake John W. Heisman, and Pollard Award namesake Fritz Pollard.
Brown women's gymnastics won the Ivy League tournament in 2013 and 2014. The Brown women's sailing team has won 5 national championships, most recently in 2019 while the coed sailing team won 2 national championships in 1942 and 1948. Both teams are consistency ranked in the top 10 in the nation.
The first intercollegiate ice hockey game in America was played between Brown and Harvard on January 19, 1898. The first university rowing regatta larger than a dual-meet was held between Brown, Harvard, and Yale at Lake Quinsigamond in Massachusetts on July 26, 1859.Notable people Alumni
Alumni in politics and government include U.S. Secretary of State John Hay (1852), U.S. Secretary of State and U.S. Attorney General Richard Olney (1856), Chief Justice of the United States and U.S. Secretary of State Charles Evans Hughes (1881), Governor of Wyoming Territory and Nebraska Governor John Milton Thayer (1841), Rhode Island Governor Augustus Bourn (1855), Louisiana Governor Bobby Jindal '92, U.S. Senator Maggie Hassan '80 of New Hampshire, Delaware Governor Jack Markell '82, Rhode Island Representative David Cicilline '83, Minnesota Representative Dean Phillips '91, 2020 Presidential candidate and entrepreneur Andrew Yang '96, DNC Chair Tom Perez '83, diplomat Richard Holbrooke '62, and career United States diplomat W. Stuart Symington '74.
Prominent alumni in business and finance include philanthropist John D. Rockefeller Jr. (1897), managing director of McKinsey & Company and "father of modern management consulting" Marvin Bower '25, former Chair of the Federal Reserve and current U.S. Secretary of the Treasury Janet Yellen '67, World Bank President Jim Yong Kim '82, Bank of America CEO Brian Moynihan '81, CNN founder Ted Turner '60, IBM chairman and CEO Thomas Watson Jr. '37, co-founder of Starwood Capital Group Barry Sternlicht '82, Apple Inc. CEO John Sculley '61, Blackberry Ltd. CEO John S. Chen '78, Facebook CFO David Ebersman '91, and Uber CEO Dara Khosrowshahi '91. Companies founded by Brown alumni include CNN,The Wall Street Journal, Searchlight Pictures, Netgear, W Hotels, Workday, Warby Parker, Casper, Figma, ZipRecruiter, and Cards Against Humanity.''''
Alumni in the arts and media include actors Emma Watson '14, John Krasinski '01, Daveed Diggs '04, Julie Bowen '91, Tracee Ellis Ross '94, and Jessica Capshaw '98; NPR program host Ira Glass '82; singer-composer Mary Chapin Carpenter '81; humorist and Marx Brothers screenwriter S. J. Perelman '25; novelists Nathanael West '24, Jeffrey Eugenides '83, Edwidge Danticat (MFA '93), and Marilynne Robinson '66; and composer and synthesizer pioneer Wendy Carlos '62, journalist James Risen '77; political pundit Mara Liasson; MSNBC hosts Alex Wagner '99 and Chris Hayes '01; New York Times publisher A. G. Sulzberger '03, and magazine editor John F. Kennedy Jr. '83.
Important figures in the history of education include the father of American public school education Horace Mann (1819), civil libertarian and Amherst College president Alexander Meiklejohn, first president of the University of South Carolina Jonathan Maxcy (1787), Bates College founder Oren B. Cheney (1836), University of Michigan president (1871–1909) James Burrill Angell (1849), University of California president (1899–1919) Benjamin Ide Wheeler (1875), and Morehouse College's first African-American president John Hope (1894).
Alumni in the computer sciences and industry include architect of Intel 386, 486, and Pentium microprocessors John H. Crawford '75, inventor of the first silicon transistor Gordon Kidd Teal '31, MongoDB founder Eliot Horowitz '03, Figma founder Dylan Field, and Macintosh developer Andy Hertzfeld '75.
Other notable alumni include "Lafayette of the Greek Revolution" and its historian Samuel Gridley Howe (1821), NASA head during first seven Apollo missions Thomas O. Paine '42, sportscaster Chris Berman '77, Houston Texans head coach Bill O'Brien '92, 2018 Miss America Cara Mund '16, Penn State football coach Joe Paterno '50, Heisman Trophy namesake John W. Heisman '91, distinguished professor of law Cortney Lollar '97, Former SEC Commissioner Annette Nazareth ‘78, Olympic and world champion triathlete Joanna Zeiger, royals and nobles such as Prince Rahim Aga Khan, Prince Faisal bin Al Hussein of the Hashemite Kingdom of Jordan, Princess Leila Pahlavi of Iran '92, Prince Nikolaos of Greece and Denmark, Prince Nikita Romanov, Princess Theodora of Greece and Denmark, Prince Jaime of Bourbon-Parma, Duke of San Jaime and Count of Bardi, Prince Ra'ad bin Zeid, Lady Gabriella Windsor, Prince Alexander von Fürstenberg, Countess Cosima von Bülow Pavoncelli, and her half-brother Prince Alexander-Georg von Auersperg.
Nobel Laureate alumni include humanitarian Jerry White '87 (Peace, 1997), biologist Craig Mello '82 (Physiology or Medicine, 2006), economist Guido Imbens (AM '89, PhD '91; Economic Sciences, 2021), and economist Douglas Diamond '75 (Economic Sciences, 2022).
<gallery class"center" mode"nolines" caption="Notable Brown University alumni include:">
File:Southworth and Hawes - Horace Mann (Zeno Fotografie) (cropped).jpg|Horace Mann, class of 1819, regarded as the father of American public education
File:John Hay, bw photo portrait, 1897.jpg|John Hay, class of 1858, private secretary to Abraham Lincoln and U.S. Secretary of State
File:Charles Evans Hughes cph.3b15401.jpg|Charles Evans Hughes, class of 1881, Chief Justice of the United States and U.S. Secretary of State
File:John D. Rockefeller Jr. cph.3a03736 (cropped).jpg|John D. Rockefeller Jr., class of 1897, philanthropist and developer of Rockefeller Center
File:ThomasJWatsonJr.jpg|Thomas J. Watson Jr., class of 1937, president and CEO of IBM and 16th U.S. ambassador to the Soviet Union
File:Lois Lowry author 2014 (cropped).jpg|Lois Lowry, class of 1958, Newbery Medal-winning author of The Giver and Number the Stars
File:Ted Turner.jpg|Ted Turner, class of 1960, founder of CNN, TBS, and WCW and philanthropist
File:John Sculley 2006 (closeup).jpg|John Sculley, class of 1961, former CEO of Apple Inc. and president of PepsiCo
File:Janet Yellen official Federal Reserve portrait.jpg|Janet Yellen, class of 1967, the first woman to serve as Chair of the Federal Reserve and U.S. Secretary of the Treasury
File:Andre Leon Talley at the 2009 Tribeca Film Festival (cropped).jpg|André Leon Talley, class of 1972, former editor-at-large and creative director of Vogue
File:Brian Moynihan FT CNBC Nightcap.jpg|Brian Moynihan, class of 1981, chairman and CEO of Bank of America
File:Ira Glass at the 73rd Annual Peabody Awards ii (cropped).jpg|Ira Glass, class of 1982, radio personality and host of This American Life
File:Jim Yong Kim 2015.jpg|Jim Yong Kim, class of 1982, 12th Pres. of the World Bank, 17th Pres. of Dartmouth
File:John Kennedy Jr 1997 (cropped).jpg|John F. Kennedy Jr., class of 1983, lawyer, journalist, and magazine publisher
File:Laura Linney 2016 (cropped).jpg|Laura Linney, class of 1986, actress, recipient of 4 Emmy Awards and 3 time Oscar nominee
File:DavisGuggenheimJI1 (cropped).jpg|Davis Guggenheim, class of 1986, Oscar-winning documentary filmmaker
File:Jesse Tyler Ferguson, Jason Winer, Horace Newcomb and Julie Bowen, May 2010 (1) (cropped).jpg|Julie Bowen, class of 1991, actress, six time Emmy Award nominee
File:Conférence de Dara Khosrowshahi, CEO d’UBER à l'Ecole polytechnique en date du 24052018 (28529262558) (cropped, close up).jpg|Dara Khosrowshahi, class of 1991, CEO of Uber, former CEO of Expedia Group
File:TraceeEllisRossbyErikMelvin (1).jpg|Tracee Ellis Ross, class of 1994, actress, model, comedienne, and television host
File:Andrew Yang by Gage Skidmore.jpg|Andrew Yang, class of 1996, businessman and U.S. presidential candidate
File:MSNBC host Chris Hayes (8024131849) (cropped, closeup).jpg|Chris Hayes, class of 2001, political commentator and host of All In with Chris Hayes
File:John Krasinski and Josh Wood (cropped).jpg|John Krasinski, class of 2001, actor, director, producer, and screenwriter
File:Knight Foundation, A.G. Sulzberger 3 (cropped closeup).jpg|A. G. Sulzberger, class of 2003, publisher of The New York Times
</gallery>
Faculty
Among Brown's past and present faculty are seven Nobel Laureates: Lars Onsager (Chemistry, 1968), Leon Cooper (Physics, 1972), George Snell (Physiology or Medicine, 1980), George Stigler (Economic Sciences, 1982), Henry David Abraham (Peace, 1985), Vernon L. Smith (Economic Sciences, 2002), and J. Michael Kosterlitz (Physics, 2016).
Notable past and present faculty include biologists Anne Fausto-Sterling (Ph.D. 1970) and Kenneth R. Miller (Sc.B. 1970); computer scientists Robert Sedgewick and Andries van Dam; economists Hyman Minsky, Glenn Loury, George Stigler, Mark Blyth, and Emily Oster; historians Gordon S. Wood and Joan Wallach Scott; mathematicians David Gale, David Mumford, Mary Cartwright, and Solomon Lefschetz; physicists Sylvester James Gates and Gerald Guralnik. Faculty in literature include Chinua Achebe, Ama Ata Aidoo, [https://vivo.brown.edu/display/jortega Julio Ortega], and Carlos Fuentes. Among Brown's faculty and fellows in political science, and public affairs are the former prime minister of Italy and former EU chief, Romano Prodi; former president of Brazil, Fernando Cardoso; former president of Chile, Ricardo Lagos; and son of Soviet Premier Nikita Khrushchev, Sergei Khrushchev. Other faculty include philosopher Martha Nussbaum, author Ibram X. Kendi, and public health doctor Ashish Jha.
In popular culture
Mentions of Brown in fiction and popular culture include the following. Family Guy character Brian Griffin is a Brown alumnus. The O.C.s main character Seth Cohen is denied acceptance to Brown while his girlfriend Summer Roberts is accepted.See also
*List of Brown University statues
*Brown University Alma Mater
*Josiah S. Carberry
Explanatory notes
References
Citations
External links
*
* [https://brownbears.com/index.aspx Brown University Athletics] – Official Athletics Website
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Category:Universities and colleges in Providence, Rhode Island | https://en.wikipedia.org/wiki/Brown_University | 2025-04-05T18:26:42.498789 |
4158 | Bill Atkinson | | birth_place | nationality American
| education = University of California, San Diego<br />University of Washington
| occupation = Engineer, inventor, nature photographer
| known_for = Part of the Apple Lisa and Macintosh 128K development teams; conceived, designed, implemented HyperCard, the first popular hypermedia system; his 2004 book, Within the Stone
| title | website
}}
William "Bill" D. Atkinson Marching ants, the double-click, Menu bar, the selection lasso, MacPaint (FatBits), HyperCard, Atkinson dithering, and the app PhotoCard.
Education
He received his undergraduate degree from the University of California, San Diego, where Apple Macintosh developer Jef Raskin was one of his professors. Atkinson continued his studies as a graduate student in neurochemistry at the University of Washington.
Apple
Raskin invited Atkinson to visit him at Apple Computer; Steve Jobs persuaded him to join the company immediately as employee No. 51, and Atkinson never finished his PhD. Atkinson was the principal designer and developer of the graphical user interface (GUI) of the Apple Lisa and, later, one of the first thirty members of the original Apple Macintosh development team,</blockquote>
In 2007, Atkinson began working as an outside developer with Numenta, a startup working on computer intelligence. On his work there Atkinson said, "what Numenta is doing is more fundamentally important to society than the personal computer and the rise of the Internet."PhotographyCurrently, Atkinson works as a nature photographer, focusing on close-up photographs of stones that have been cut and polished. His 2004 book Within the Stone features a collection of his close-up photographs. The detailed images he creates are made possible by the accuracy and creative control of the digital printing process that he helped create. In popular culture Actor Nelson Franklin portrayed him in the 2013 film Jobs. References
</references>
External links
*
Category:1951 births
Category:American photographers
Category:Apple Inc. employees
Category:Apple Fellows
Category:American computer programmers
Category:Living people
Category:University of California, San Diego alumni
Category:Place of birth missing (living people)
Category:University of Washington alumni
Category:Macintosh operating systems people
Category:Scientists from the San Francisco Bay Area | https://en.wikipedia.org/wiki/Bill_Atkinson | 2025-04-05T18:26:42.527789 |
4160 | Battle of Lostwithiel | | result= Royalist victory
| combatant1=Royalists
| combatant2=Parliamentarians
| commander1=
| commander2=
}}
| strength1=12,000 infantry<br>7,000 cavalry
| strength2= 6,500 infantry<br> 3,000 cavalry
| casualties1= 500
| casualties2= 700 <br> 5,000 prisoners
}}
The Battle of Lostwithiel took place over a 13-day period from 21 August to 2 September 1644, around the town of Lostwithiel and along the River Fowey valley in Cornwall during the First English Civil War. A Royalist army led by Charles I of England defeated a Parliamentarian force commanded by the Earl of Essex.
Although Essex and most of the cavalry escaped, between 5,000 and 6,000 Parliamentarian infantry were forced to surrender. Since the Royalists were unable to feed so many, they were given a pass back to their own territory, arriving in Southampton a month later having lost nearly half their number to disease and desertion.
Considered one of the worst defeats suffered by Parliament over the course of the Wars of the Three Kingdoms, it secured South West England for the Royalists until early 1646.
Background
During April and May 1644, Parliamentarian commanders Sir William Waller and the Earl of Essex combined their armies and carried out a campaign against King Charles and the Royalist garrisons surrounding Oxford. Trusting Waller to deal with the King in Oxfordshire, Essex divided the Parliamentarian army on 6 June and headed southwest to relieve the Royalist siege of Lyme in Dorset. Lyme had been under siege by King Charles' nephew, Prince Maurice, and the Royalists for nearly two months.
South-West England at that time was largely under the control of the Royalists. The town of Lyme, however, was a Parliamentarian stronghold and served as an important seaport for the Parliamentarian fleet of the Earl of Warwick. As Essex approached Lyme in mid-June Prince Maurice ended the siege and took his troops west to Exeter.
Essex then proceeded further southwest toward Cornwall with the intent to relieve the siege of Plymouth. Plymouth was the only other significant Parliamentarian stronghold in the South-West and it was under siege by Richard Grenville and Cornish Royalists. Essex had been told by Lord Robartes, a wealthy politician and merchant from Cornwall, that the Parliamentarians would gain considerable military support if he moved against Grenville and freed Plymouth. Given Lord Robartes' advice, Essex advanced toward Plymouth. His action caused Grenville to end the siege. Essex then advanced further west, believing that he could take full control of the South-West from the Royalists.
Meanwhile, in Oxfordshire, King Charles battled with the Parliamentarians and defeated Sir William Waller at the Battle of Cropredy Bridge on 29 June. On 12 July after a Royalist council of war recommended that Essex be dealt with before he could be reinforced, King Charles and his Oxford army departed Evesham. King Charles accepted the council's advice, not solely because it was good strategy, but more so because his Queen was in Exeter, where she had recently given birth to the Princess Henrietta and had been denied safe conduct to Bath by Essex.Trapped in Cornwall
On 26 July, King Charles arrived in Exeter and joined his Oxford army with the Royalist forces commanded by Prince Maurice. On that same day, Essex and his Parliamentary force entered Cornwall. One week later, as Essex bivouacked with his army at Bodmin, he learned that King Charles had defeated Waller; brought his Oxford army to the South-West; and joined forces with Prince Maurice. Essex had also seen that he was not getting the military support from the people of Cornwall as Lord Robartes asserted. At that time, Essex understood that he and his army were trapped in Cornwall and his only salvation would be reinforcements or an escape through the port of Fowey by means of the Parliamentarian fleet.
Essex immediately marched his troops five miles south to the small town of Lostwithiel arriving on 2 August. He immediately deployed his men in a defensive arc with detachments on the high ground to the north at Restormel Castle and the high ground to the east at Beacon Hill. Essex also sent a small contingent of foot south to secure the port of Fowey aiming to eventually evacuate his infantry by sea. At Essex's disposal was a force of 6,500 foot and 3,000 horse.
Aided through intelligence provided by the people of Cornwall , King Charles followed westward, slowly and deliberately cutting off the potential escape routes that Essex might attempt to utilize. On 6 August King Charles communicated with Essex, calling for him to surrender. Stalling for several days, Essex considered the offer but ultimately refused.
On 11 August, Grenville and the Cornish Royalists entered Bodmin forcing out Essex's rear-guard cavalry. Grenville then proceeded south across Respryn Bridge to meet and join forces with King Charles and Prince Maurice. It is estimated that the Royalist forces at that time were composed of 12,000 foot and 7,000 horse. Over the next two days the Royalists deployed detachments along the east side of the River Fowey to prevent a Parliamentarian escape across country. Finally the Royalists sent 200 foot with artillery south to garrison the fort at Polruan, effectively blocking the entrance to the harbour of Fowey. At about that time, Essex learned that reinforcements under the command of Sir John Middleton were turned back by the Royalists at Bridgwater in Somerset.
First battle - 21–30 August 1644
At 07:00 hours on 21 August, King Charles launched his first attack on Essex and the Parliamentarians at Lostwithiel. From the north, Grenville and the Cornish Royalists attacked Restormel Castle and easily dislodged the Parliamentarians who fell back quickly. From the east, King Charles and the Oxford army captured Beacon Hill with little resistance from the Parliamentarians. Prince Maurice and his force occupied Druid Hill. Casualties were fairly low and by nightfall the fighting ended and the Royalists held the high ground on the north and east sides of Lostwithiel.
For the next couple of days the two opposing forces exchanged fire only in a number of small skirmishes. On 24 August, King Charles further tightened the noose encircling the Parliamentarians when he sent Lord Goring and Sir Thomas Bassett to secure the town of St Blazey and the area to the southwest of Lostwithiel. This reduced the foraging area for the Parliamentarians and access to the coves and inlets in the vicinity of the port of Par.
Essex and the Parliamentarians were now totally surrounded and boxed into a two-mile by five-mile area spanning from Lostwithiel in the north to the port of Fowey in the south. Knowing that he would not be able to fight his way out, Essex made his final plans for an escape. Since a sea evacuation of his cavalry would not be possible, Essex ordered his cavalry commander William Balfour to attempt a breakout to Plymouth. For the infantry, Essex planned to retreat south and meet Lord Warwick and the Parliamentarian fleet at Fowey. At 03:00 hours on 31 August, Balfour and 2,000 members of his cavalry executed the first step of Essex's plan when they successfully crossed the River Fowey and escaped intact without engaging the Royalist defenders.Second battle - 31 August - 2 September 1644
Early on the morning on 31 August, the Parliamentarians ransacked and looted Lostwithiel and began their withdrawal south. At 07:00 hours, the Royalists observed the actions of the Parliamentarians and immediately proceeded to attack. Grenville attacked from the north. King Charles and Prince Maurice crossed the River Fowey, joined up with Grenville, and entered Lostwithiel. Together the Royalists engaged the Parliamentarian rear-guards and quickly took possession of the town. The Royalist also sent detachments down along the east side of the River Fowey to protect against any further breakouts and to capture the town of Polruan.
The Royalists then began to pursue Essex and the Parliamentarian infantry down the river valley. At the outset the Royalist pushed the Parliamentarians nearly three miles south through the hedged fields, hills and valleys. At the narrow pass near St. Veep, Philip Skippon, Essex's commander of the infantry, counter-attacked the Royalists and pushed them back several fields attempting to give Essex time to set up a line of defense further south. At 11:00 hours, the Royalist cavalry mounted a charge and won back the territory lost. There was a lull in the battle at 12:00 hours as King Charles waited for his full army to come up and reform.
The fighting resumed and continued through the afternoon as the Parliamentarians tried to disengage and continue south. At 16:00 hours, the Parliamentarians tried again to counter-attack with their remaining cavalry only to be driven back by King Charles' Life Guard. About a mile north of Castle Dore, the Parliamentarians right flank began to give way. At 18:00 hours when the Parliamentarians were pushed back to Castle Dore they made their last attempt to rally only to be pushed back and surrounded.
About that time the fighting ended with the Royalists satisfied in their accomplishments of the day. Exhausted and discouraged, the Parliamentarians hunkered down for the night. Later that evening under the darkness of night, Essex and his command staff stole away to the seashore where they used a fishing boat to flee to Plymouth, leaving Skippon in command.
Early on 1 September, Skippon met with his officers to inform them about Essex's escape and to discuss alternatives. It was decided that they would approach King Charles and seek terms. Concerned that Parliamentarian reinforcements might be on their way, the King quickly agreed on 2 September to generous terms. The battle was over. Six thousand Parliamentarians were taken as prisoners. Their weapons were taken away and they were marched to Southampton. They suffered the wrath of the Cornish people in route and as many as 3,000 died of exposure and disease along the way. Those that survived the journey were, however, eventually set free. Total casualties associated with the battle were extremely high especially when considering those who died on the march back to Southampton. To those numbers as many as 700 Parliamentarians are estimated to have been killed or wounded during the fighting in Cornwall along with an estimated 500 Royalists.Aftermath
The Battle of Lostwithiel was a great victory for King Charles and the greatest loss that the Parliamentarians would suffer in the First English Civil War. For King Charles the victory secured the South-West for the remainder of the war and mitigated criticism for a while against the Royalist war effort.
For the Parliamentarians, the defeat resulted in recriminations with Middleton ultimately being blamed for his failure to break through with reinforcements. The Parliamentarian failure at Lostwithiel along with the failure to defeat King Charles at the Second Battle of Newbury ultimately led Parliament to adopt the Self-denying Ordinance and led to the implementation of the New Model Army.
See also
*Battle of Braddock Down which took place in January 1643 a few kilometres from Lostwithiel.
*Cornwall in the English Civil War
Citations
References
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Battle of
Category:Charles I of England | https://en.wikipedia.org/wiki/Battle_of_Lostwithiel | 2025-04-05T18:26:42.558141 |
4162 | Beeb | Beeb or BEEB may refer to:
BBC, the British Broadcasting Corporation, sometimes called "the Beeb" or "Auntie Beeb"
BEEB, a BBC children's magazine published in 1985
BBC Micro, a home computer built for the BBC by Acorn Computers Ltd., nicknamed "The Beeb"
BBC Online, the BBC's Internet operations, containing many properties titled with variations on "Beeb"
Beeb Birtles (born 1948), Dutch-Australian musician
See also
BBC (disambiguation)
Bebe (disambiguation)
Beebe (disambiguation)
Canadian singer Justin Bieber, sometimes referred to by the nickname "The Bieb" | https://en.wikipedia.org/wiki/Beeb | 2025-04-05T18:26:42.588573 |
4163 | Bertrand Russell | |image = Bertrand Russell smoking in 1936.jpg
|caption = Russell in 1936
|module =
|birth_name = Bertrand Arthur William Russell
|birth_date
|birth_place Trellech, Monmouthshire<!--Whether Monmouthshire was in Wales in 1872 is debatable. Please leave this alone; this page is not the place for this debate-->
|death_date
|death_place = Penrhyndeudraeth, Merionethshire, Wales
|spouse | | |}}
|education = Trinity College, Cambridge (BA, 1893)
|awards
|era = 20th-century philosophy
|region = Western philosophy
|school_tradition = Analytic philosophy
|institutions = Trinity College, Cambridge, London School of Economics, University of Chicago, University of California, Los Angeles
|main_interests =
|notable_ideas =
}}
|academic_advisorsJames Ward<br />A. N. Whitehead
|doctoral_students=Ludwig Wittgenstein
|notable_students=
|signature=Bertrand Russell signature.svg
|signature_size = 250px
}}
Bertrand Arthur William Russell, 3rd Earl Russell, (18 May 1872 – 2 February 1970) was a British philosopher, logician, mathematician, and public intellectual. He had influence on mathematics, logic, set theory, and various areas of analytic philosophy.
He was one of the early 20th century's prominent logicians}} Together with his former teacher A. N. Whitehead, Russell wrote Principia Mathematica, a milestone in the development of classical logic and a major attempt to reduce the whole of mathematics to logic (see logicism). Russell's article "On Denoting" has been considered a "paradigm of philosophy".
Russell was a pacifist who championed anti-imperialism and chaired the India League. and initially supported appeasement against Adolf Hitler's Nazi Germany, before changing his view in 1943, describing war as a necessary "lesser of two evils". In the wake of World War II, he welcomed American global hegemony in preference to either Soviet hegemony or no (or ineffective) world leadership, even if it were to come at the cost of using their nuclear weapons. He would later criticise Stalinist totalitarianism, condemn the United States' involvement in the Vietnam War, and become an outspoken proponent of nuclear disarmament.
In 1950, Russell was awarded the Nobel Prize in Literature "in recognition of his varied and significant writings in which he champions humanitarian ideals and freedom of thought". He was also the recipient of the De Morgan Medal (1932), Sylvester Medal (1934), Kalinga Prize (1957), and Jerusalem Prize (1963).
Biography
Early life and background
Bertrand Arthur William Russell was born at Ravenscroft, a country house in Trellech, Monmouthshire,<!--Whether Monmouthshire was in Wales in 1872 is debatable. Please leave this alone; this page is not the place for this debate--> on 18 May 1872, into an influential and liberal family of the British aristocracy. His parents were Viscount and Viscountess Amberley. Lord Amberley consented to his wife's affair with their children's tutor, the biologist Douglas Spalding. Both were early advocates of birth control at a time when this was considered scandalous. Lord Amberley, a deist, asked the philosopher John Stuart Mill to act as Russell's secular godfather. Mill died the year after Russell's birth, but his writings later influenced Russell's life.
Russell's paternal grandfather, Lord John Russell, later 1st Earl Russell (1792–1878), had twice been Prime Minister of the United Kingdom in the 1840s and 1860s. A member of Parliament since the early 1810s, he met with Napoleon Bonaparte in Elba. The Russells had been prominent in England for several centuries before this, coming to power and the peerage with the rise of the Tudor dynasty (see: Duke of Bedford). They established themselves as one of the leading Whig families and participated in political events from the dissolution of the monasteries in 1536–1540 to the Glorious Revolution in 1688–1689 and the Great Reform Act in 1832.
Lady Amberley was the daughter of Lord and Lady Stanley of Alderley. one of the campaigners for education of women.
Childhood and adolescence
Russell had two siblings: brother Frank (seven years older), and sister Rachel (four years older). In June 1874, Russell's mother died of diphtheria, followed shortly by Rachel's death. In January 1876, his father died of bronchitis after a long period of depression. Frank and Bertrand were placed in the care of Victorian paternal grandparents, who lived at Pembroke Lodge in Richmond Park. His grandfather, former Prime Minister Earl Russell, died in 1878, and was remembered by Russell as a kind old man in a wheelchair. His grandmother, the Countess Russell (née Lady Frances Elliot), was the central family figure for the rest of Russell's childhood and youth. became his motto. The atmosphere at Pembroke Lodge was one of frequent prayer, emotional repression and formality; Frank reacted to this with open rebellion, but the young Bertrand learned to hide his feelings.
, Richmond Park, London]]
Russell's adolescence was lonely and he contemplated suicide. He remarked in his autobiography that his interests in "nature and books and (later) mathematics saved me from complete despondency;" only his wish to know more mathematics kept him from suicide. He was educated at home by a series of tutors. When Russell was eleven years old, his brother Frank introduced him to the work of Euclid, which he described in his autobiography as "one of the great events of my life, as dazzling as first love".
During these formative years, he also discovered the works of Percy Bysshe Shelley. Russell wrote: "I spent all my spare time reading him, and learning him by heart, knowing no one to whom I could speak of what I thought or felt, I used to reflect how wonderful it would have been to know Shelley, and to wonder whether I should meet any live human being with whom I should feel so much sympathy." Russell claimed that beginning at age 15, he spent considerable time thinking about the validity of Christian religious dogma, which he found unconvincing. At this age, he came to the conclusion that there is no free will and, two years later, that there is no life after death. Finally, at the age of 18, after reading Mill's Autobiography, he abandoned the "First Cause" argument and became an atheist.
He travelled to the continent in 1890 with an American friend, Edward FitzGerald, and with FitzGerald's family he visited the Paris Exhibition of 1889 and climbed the Eiffel Tower soon after it was completed.
Education
, in 1893]]
Russell won a scholarship to read for the Mathematical Tripos at Trinity College, Cambridge, and began his studies there in 1890, taking as coach Robert Rumsey Webb. He became acquainted with the younger George Edward Moore and came under the influence of Alfred North Whitehead, who recommended him to the Cambridge Apostles. He distinguished himself in mathematics and philosophy, graduating as seventh Wrangler in the former in 1893 and becoming a Fellow in the latter in 1895.
Early career
Russell began his published work in 1896 with German Social Democracy, a study in politics that was an early indication of his interest in political and social theory. In 1896 he taught German social democracy at the London School of Economics. He was a member of the Coefficients dining club of social reformers set up in 1902 by the Fabian campaigners Sidney and Beatrice Webb.
He now started a study of the foundations of mathematics at Trinity. In 1897, he wrote An Essay on the Foundations of Geometry (submitted at the Fellowship Examination of Trinity College) which discussed the Cayley–Klein metrics used for non-Euclidean geometry. He attended the first International Congress of Philosophy in Paris in 1900 where he met Giuseppe Peano and Alessandro Padoa. The Italians had responded to Georg Cantor, making a science of set theory; they gave Russell their literature including the Formulario mathematico. Russell was impressed by the precision of Peano's arguments at the Congress, read the literature upon returning to England, and came upon Russell's paradox. In 1903 he published The Principles of Mathematics, a work on the foundations of mathematics. It advanced a thesis of logicism, that mathematics and logic are one and the same.
At the age of 29, in February 1901, Russell underwent what he called a "sort of mystic illumination", after witnessing Whitehead's wife's suffering in an angina attack. "I found myself filled with semi-mystical feelings about beauty and with a desire almost as profound as that of the Buddha to find some philosophy which should make human life endurable", Russell would later recall. "At the end of those five minutes, I had become a completely different person."
In 1905, he wrote the essay "On Denoting", which was published in the philosophical journal Mind. Russell was elected a Fellow of the Royal Society (FRS) in 1908.
In 1910, he became a lecturer at the University of Cambridge, Trinity College, where he had studied. He was considered for a fellowship, which would give him a vote in the college government and protect him from being fired for his opinions, but was passed over because he was "anti-clerical", because he was agnostic. He was approached by the Austrian engineering student Ludwig Wittgenstein, who started undergraduate study with him. Russell viewed Wittgenstein as a successor who would continue his work on logic. He spent hours dealing with Wittgenstein's various phobias and his bouts of despair. This was a drain on Russell's energy, but Russell continued to be fascinated by him and encouraged his academic development, including the publication of Wittgenstein's Tractatus Logico-Philosophicus in 1922. Russell delivered his lectures on logical atomism, his version of these ideas, in 1918, before the end of World War I. Wittgenstein was, at that time, serving in the Austrian Army and subsequently spent nine months in an Italian prisoner of war camp at the end of the conflict.First World War, shown here in May 1916 (back right).]]
During World War I, Russell was one of the few people to engage in active pacifist activities. In 1916, due to his absence of allegiance to the war effort, he was dismissed from Trinity College following his conviction under the Defence of the Realm Act 1914. He later described this, in Free Thought and Official Propaganda, as an illegitimate means the state used to violate freedom of expression. Russell championed the case of Eric Chappelow, a poet jailed and abused as a conscientious objector. Russell played a part in the Leeds Convention in June 1917, a historic event which saw well over a thousand "anti-war socialists" gather; many being delegates from the Independent Labour Party and the Socialist Party, united in their pacifist beliefs and advocating a peace settlement. The international press reported that Russell appeared with a number of Labour Members of Parliament (MPs), including Ramsay MacDonald and Philip Snowden, as well as former Liberal MP and anti-conscription campaigner, Professor Arnold Lupton. After the event, Russell told Lady Ottoline Morrell that, "to my surprise, when I got up to speak, I was given the greatest ovation that was possible to give anybody".
His conviction in 1916 resulted in Russell being fined £100 (), which he refused to pay in the hope that he would be sent to prison, but his books were sold at auction to raise the money. The books were bought by friends; he later treasured his copy of the King James Bible that was stamped "Confiscated by Cambridge Police".
A later conviction for publicly lecturing against inviting the United States to enter the war on the United Kingdom's side resulted in six months' imprisonment in Brixton Prison (see ''Bertrand Russell's political views'') in 1918 (he was prosecuted under the Defence of the Realm Act) He later said of his imprisonment:
While he was reading Strachey's Eminent Victorians chapter about Gordon he laughed out loud in his cell prompting the warder to intervene and reminding him that "prison was a place of punishment".
Russell was reinstated to Trinity in 1919, resigned in 1920, was Tarner Lecturer in 1926 and became a Fellow again in 1944 until 1949.
In 1924, Russell again gained press attention when attending a "banquet" in the House of Commons with well-known campaigners, including Arnold Lupton, who had been an MP and had also endured imprisonment for "passive resistance to military or naval service".
G. H. Hardy on the Trinity controversy
In 1941, G. H. Hardy wrote a 61-page pamphlet titled Bertrand Russell and Trinity (published later as a book by Cambridge University Press with a foreword by C. D. Broad) in which he gave an authoritative account of Russell's 1916 dismissal from Trinity College, explaining that a reconciliation between the college and Russell had later taken place and gave details about Russell's personal life. Hardy writes that Russell's dismissal had created a scandal since the vast majority of the Fellows of the College opposed the decision. The ensuing pressure from the Fellows induced the Council to reinstate Russell. In January 1920, it was announced that Russell had accepted the reinstatement offer from Trinity and would begin lecturing in October. In July 1920, Russell applied for a one-year leave of absence; this was approved. He spent the year giving lectures in China and Japan. In January 1921, it was announced by Trinity that Russell had resigned and his resignation had been accepted. This resignation, Hardy explains, was voluntary and was not the result of another altercation.
The reason for the resignation, according to Hardy, was that Russell was going through a tumultuous time in his personal life with a divorce and subsequent remarriage. Russell contemplated asking Trinity for another one-year leave of absence but decided against it since this would have been an "unusual application" and the situation had the potential to snowball into another controversy. Although Russell did the right thing, in Hardy's opinion, the reputation of the College suffered with Russell's resignation since the 'world of learning' knew about Russell's altercation with Trinity but not that the rift had healed. In 1925, Russell was asked by the Council of Trinity College to give the Tarner Lectures on the Philosophy of the Sciences; these would later be the basis for one of Russell's best-received books according to Hardy: The Analysis of Matter, published in 1927. In the preface to the Trinity pamphlet, Hardy wrote:
Between the wars
In August 1920, Russell travelled to Soviet Russia as part of an official delegation sent by the British government to investigate the effects of the Russian Revolution. He wrote a four-part series of articles, titled "Soviet Russia—1920", for the magazine The Nation. He met Vladimir Lenin and had an hour-long conversation with him. In his autobiography, he mentions that he found Lenin disappointing, sensing an "impish cruelty" in him and comparing him to "an opinionated professor". He cruised down the Volga on a steamship. His experiences destroyed his previous tentative support for the revolution. He subsequently wrote a book, The Practice and Theory of Bolshevism, about his experiences on this trip, taken with a group of 24 others from the UK, all of whom came home thinking well of the Soviet regime, despite Russell's attempts to change their minds. For example, he told them that he had heard shots fired in the middle of the night and was sure that these were clandestine executions, but the others maintained that it was only cars backfiring.
and Kate]]
Russell's lover Dora Black, a British author, feminist and socialist campaigner, visited Soviet Russia independently at the same time; in contrast to his reaction, she was enthusiastic about the Bolshevik revolution. Other scholars present in China at the time included John Dewey When the couple visited Japan on their return journey, Dora took on the role of spurning the local press by handing out notices reading "Mr. Bertrand Russell, having died according to the Japanese press, is unable to give interviews to Japanese journalists". Apparently they found this harsh and reacted resentfully. Russell supported his family during this time by writing popular books explaining matters of physics, ethics, and education to the layman.
From 1922 to 1927 the Russells divided their time between London and Cornwall, spending summers in Porthcurno. In the 1922 and 1923 general elections Russell stood as a Labour Party candidate in the Chelsea constituency, but only on the basis that he knew he was unlikely to be elected in such a safe Conservative seat, and he was unsuccessful on both occasions.
After the birth of his two children, he became interested in education, especially early childhood education. He was not satisfied with the old traditional education and thought that progressive education also had some flaws; as a result, together with Dora, Russell founded the experimental Beacon Hill School in 1927. The school was run from a succession of different locations, including its original premises at the Russells' residence, Telegraph House, near Harting, West Sussex. During this time, he published On Education, Especially in Early Childhood. On 8 July 1930, Dora gave birth to her third child Harriet Ruth. After he left the school in 1932, Dora continued it until 1943.
In 1927 Russell met Barry Fox (later Barry Stevens), who became a known Gestalt therapist and writer in later years. They developed an intense relationship, and in Fox's words: "...for three years we were very close." Fox sent her daughter Judith to Beacon Hill School. From 1927 to 1932 Russell wrote 34 letters to Fox. Upon the death of his elder brother Frank, in 1931, Russell became the 3rd Earl Russell.
Russell's marriage to Dora grew tenuous, and it reached a breaking point over her having two children with an American journalist, Griffin Barry. Russell chaired the India League from 1932 to 1939.
Second World War
Russell's political views changed over time, mostly about war. He opposed rearmament against Nazi Germany. In 1937, he wrote in a personal letter: "If the Germans succeed in sending an invading army to England we should do best to treat them as visitors, give them quarters and invite the commander and chief to dine with the prime minister." In 1940, he changed his appeasement view that avoiding a full-scale world war was more important than defeating Hitler. He concluded that Adolf Hitler taking over all of Europe would be a permanent threat to democracy. In 1943, he adopted a stance toward large-scale warfare called "relative political pacifism": "War was always a great evil, but in some particularly extreme circumstances, it may be the lesser of two evils."
Before World War II, Russell taught at the University of Chicago, later moving on to Los Angeles to lecture at the UCLA Department of Philosophy. He was appointed professor at the City College of New York (CCNY) in 1940, but after a public outcry the appointment was annulled by a court judgment that pronounced him "morally unfit" to teach at the college because of his opinions, especially those relating to sexual morality, detailed in Marriage and Morals (1929). The matter was taken to the New York Supreme Court by Jean Kay who was afraid that her daughter would be harmed by the appointment, though her daughter was not a student at CCNY. Many intellectuals, led by John Dewey, protested at his treatment. Albert Einstein's oft-quoted aphorism that "great spirits have always encountered violent opposition from mediocre minds" originated in his open letter, dated 19 March 1940, to Morris Raphael Cohen, a professor emeritus at CCNY, supporting Russell's appointment. Dewey and Horace M. Kallen edited a collection of articles on the CCNY affair in The Bertrand Russell Case. Russell soon joined the Barnes Foundation, lecturing to a varied audience on the history of philosophy; these lectures formed the basis of A History of Western Philosophy. His relationship with the eccentric Albert C. Barnes soon soured, and he returned to the UK in 1944 to rejoin the faculty of Trinity College.Later life
Russell participated in many broadcasts over the BBC, particularly The Brains Trust and for the Third Programme, on various topical and philosophical subjects. By this time Russell was known outside academic circles, frequently the subject or author of magazine and newspaper articles, and was called upon to offer opinions on a variety of subjects, even mundane ones. En route to one of his lectures in Trondheim, Russell was one of 24 survivors (out of 43 passengers) of an aeroplane crash in Hommelvik in October 1948. He said he owed his life to smoking since the people who drowned were in the non-smoking part of the plane. A History of Western Philosophy (1945) became a best-seller and provided Russell with a steady income for the remainder of his life.
In 1942, Russell argued in favour of a moderate socialism, capable of overcoming its metaphysical principles. In an inquiry on dialectical materialism, launched by the Austrian artist and philosopher Wolfgang Paalen in his journal DYN, Russell said: "I think the metaphysics of both Hegel and Marx plain nonsense—Marx's claim to be 'science' is no more justified than Mary Baker Eddy's. This does not mean that I am opposed to socialism."
In 1943, Russell expressed support for Zionism: "I have come gradually to see that, in a dangerous and largely hostile world, it is essential to Jews to have some country which is theirs, some region where they are not suspected aliens, some state which embodies what is distinctive in their culture".
In a speech in 1948, Russell said that if the USSR's aggression continued, it would be morally worse to go to war after the USSR possessed an atomic bomb than before it possessed one, because if the USSR had no bomb the West's victory would come more swiftly and with fewer casualties than if there were atomic bombs on both sides. At that time, only the United States possessed an atomic bomb, and the USSR was pursuing an aggressive policy towards the countries in Eastern Europe which were being absorbed into the Soviet Union's sphere of influence. Many understood Russell's comments to mean that Russell approved of a first strike in a war with the USSR, including Nigel Lawson, who was present when Russell spoke of such matters. Others, including Griffin, who obtained a transcript of the speech, have argued that he was explaining the usefulness of America's atomic arsenal in deterring the USSR from continuing its domination of Eastern Europe. In September 1949, one week after the USSR tested its first A-bomb, but before this became known, Russell wrote that the USSR would be unable to develop nuclear weapons because following Stalin's purges only science based on Marxist principles would be practised in the Soviet Union. After it became known that the USSR had carried out its nuclear bomb tests, Russell declared his position advocating the total abolition of atomic weapons.—what was to become an annual series of lectures, still broadcast by the BBC. His series of six broadcasts, titled Authority and the Individual, explored themes such as the role of individual initiative in the development of a community and the role of state control in a progressive society. Russell continued to write about philosophy. He wrote a foreword to Words and Things by Ernest Gellner, which was highly critical of the later thought of Ludwig Wittgenstein and of ordinary language philosophy. Gilbert Ryle refused to have the book reviewed in the philosophical journal Mind, which caused Russell to respond via The Times. The result was a month-long correspondence in The Times between the supporters and detractors of ordinary language philosophy, which was ended when the paper published an editorial critical of both sides but agreeing with the opponents of ordinary language philosophy.
In the King's Birthday Honours of 9 June 1949, Russell was awarded the Order of Merit, and the following year he was awarded the Nobel Prize in Literature. Russell merely smiled, but afterwards claimed that the reply "That's right, just like your brother" immediately came to mind.
In 1950, Russell attended the inaugural conference for the Congress for Cultural Freedom, a CIA-funded anti-communist organisation committed to the deployment of culture as a weapon during the Cold War. Russell was one of the known patrons of the Congress until he resigned in 1956.
In 1952, Russell was divorced by Spence, with whom he had been very unhappy. Conrad, Russell's son by Spence, did not see his father between the time of the divorce and 1968 (at which time his decision to meet his father caused a permanent breach with his mother). Russell married his fourth wife, Edith Finch, soon after the divorce, on 15 December 1952. They had known each other since 1925, and Edith had taught English at Bryn Mawr College near Philadelphia, sharing a house for 20 years with Russell's old friend Lucy Donnelly. Edith remained with him until his death, and, by all accounts, their marriage was a happy, close, and loving one. Russell's eldest son John suffered from mental illness, which was the source of ongoing disputes between Russell and his former wife Dora.
In 1962 Russell played a public role in the Cuban Missile Crisis: in an exchange of telegrams with Soviet leader Nikita Khrushchev, Khrushchev assured him that the Soviet government would not be reckless. Russell sent this telegram to President Kennedy:
According to historian Peter Knight, after JFK's assassination, Russell, "prompted by the emerging work of the lawyer Mark Lane in the US ... rallied support from other noteworthy and left-leaning compatriots to form a Who Killed Kennedy Committee in June 1964, members of which included Michael Foot MP, Caroline Benn, the publisher Victor Gollancz, the writers John Arden and J. B. Priestley, and the Oxford history professor Hugh Trevor-Roper." Russell published a highly critical article in The Minority of One weeks before the Warren Commission Report was published, setting forth 16 Questions on the Assassination. Russell equated the Oswald case with the Dreyfus affair of late 19th-century France, in which the state convicted an innocent man. Russell also criticised the American press for failing to heed any voices critical of the official version.
Political causes
Bertrand Russell was opposed to war from a young age; his opposition to World War I was used as grounds for his dismissal from Trinity College at Cambridge. This incident fused two of his controversial causes, as he had failed to be granted fellow status which would have protected him from firing, because he was not willing to either pretend to be a devout Christian, or at least avoid admitting he was agnostic.
He later described the resolution of these issues as essential to freedom of thought and expression, citing the incident in Free Thought and Official Propaganda, where he explained that the expression of any idea, even the most obviously "bad", must be protected not only from direct State intervention but also economic leveraging and other means of being silenced:
Russell spent the 1950s and 1960s engaged in political causes primarily related to nuclear disarmament and opposing the Vietnam War. The 1955 Russell–Einstein Manifesto was a document calling for nuclear disarmament and was signed by eleven of the most prominent nuclear physicists and intellectuals of the time. In October 1960 "The Committee of 100" was formed with a declaration by Russell and Michael Scott, entitled "Act or Perish", which called for a "movement of nonviolent resistance to nuclear war and weapons of mass destruction". In September 1961, at the age of 89, Russell was jailed for seven days in Brixton Prison for a "breach of the peace" after taking part in an anti-nuclear demonstration in London. The magistrate offered to exempt him from jail if he pledged himself to "good behaviour", to which Russell replied: "No, I won't."
From 1966 to 1967, Russell worked with Jean-Paul Sartre and many other intellectual figures to form the Russell Vietnam War Crimes Tribunal to investigate the conduct of the United States in Vietnam. He wrote many letters to world leaders during this period.
Early in his life, Russell supported eugenicist policies. In 1894, he proposed that the state issue certificates of health to prospective parents and withhold public benefits from those considered unfit. In 1929, he wrote that people deemed "mentally defective" and "feebleminded" should be sexually sterilised because they "are apt to have enormous numbers of illegitimate children, all, as a rule, wholly useless to the community." Russell was also an advocate of population control:
On 20 November 1948, in a public speech at Westminster School, addressing a gathering arranged by the New Commonwealth, Russell shocked some observers by suggesting that a preemptive nuclear strike on the Soviet Union was justified. Russell argued that war between the United States and the Soviet Union seemed inevitable, so it would be a humanitarian gesture to get it over with quickly and have the United States in the dominant position. Currently, Russell argued, humanity could survive such a war, whereas a full nuclear war after both sides had manufactured large stockpiles of more destructive weapons was likely to result in the extinction of the human race. Russell later relented from this stance, instead arguing for mutual disarmament by the nuclear powers.
In 1956, before and during the Suez Crisis, Russell expressed his opposition to European imperialism in the Middle East. He viewed the crisis as another reminder of the pressing need for an effective mechanism for international governance, and to restrict national sovereignty in places such as the Suez Canal area "where general interest is involved". At the same time the Suez Crisis was taking place, the world was also captivated by the Hungarian Revolution and the subsequent crushing of the revolt by intervening Soviet forces. Russell attracted criticism for speaking out fervently against the Suez war while ignoring Soviet repression in Hungary, to which he responded that he did not criticise the Soviets "because there was no need. Most of the so-called Western World was fulminating". Although he later feigned a lack of concern, at the time he was disgusted by the brutal Soviet response, and on 16 November 1956, he expressed approval for a declaration of support for Hungarian scholars which Michael Polanyi had cabled to the Soviet embassy in London twelve days previously, shortly after Soviet troops had entered Budapest.
In November 1957 Russell wrote an article addressing US President Dwight D. Eisenhower and Soviet Premier Nikita Khrushchev, urging a summit to consider "the conditions of co-existence". Khrushchev responded that peace could be served by such a meeting. In January 1958 Russell elaborated his views in The Observer, proposing a cessation of all nuclear weapons production, with the UK taking the first step by unilaterally suspending its own nuclear weapons program if necessary, and with Germany "freed from all alien armed forces and pledged to neutrality in any conflict between East and West". US Secretary of State John Foster Dulles replied for Eisenhower. The exchange of letters was published as The Vital Letters of Russell, Khrushchev, and Dulles.
Russell was asked by The New Republic, a liberal American magazine, to elaborate his views on world peace. He urged that all nuclear weapons testing and flights by planes armed with nuclear weapons be halted immediately, and negotiations be opened for the destruction of all hydrogen bombs, with the number of conventional nuclear devices limited to ensure a balance of power. He proposed that Germany be reunified and accept the Oder-Neisse line as its border, and that a neutral zone be established in Central Europe, consisting at the minimum of Germany, Poland, Hungary, and Czechoslovakia, with each of these countries being free of foreign troops and influence, and prohibited from forming alliances with countries outside the zone. In the Middle East, Russell suggested that the West avoid opposing Arab nationalism, and proposed the creation of a United Nations peacekeeping force to guard Israel's frontiers to ensure that Israel was prevented from committing aggression and protected from it. He also suggested Western recognition of the People's Republic of China, and that it be admitted to the UN with a permanent seat on the UN Security Council. In 1964, he was one of eleven world figures who issued an appeal to Israel and the Arab countries to accept an arms embargo and international supervision of nuclear plants and rocket weaponry. In October 1965, he tore up his Labour Party card because he suspected Harold Wilson's Labour government was going to send troops to support the United States in Vietnam.
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Russell published his three-volume autobiography in 1967, 1968, and 1969. He made a cameo appearance playing himself in the anti-war Hindi film Aman, by Mohan Kumar, which was released in India in 1967. This was Russell's only appearance in a feature film.
On 23 November 1969, he wrote to The Times newspaper saying that the preparation for show trials in Czechoslovakia was "highly alarming". The same month, he appealed to Secretary General U Thant of the United Nations to support an international war crimes commission to investigate alleged torture and genocide by the United States in South Vietnam during the Vietnam War. The following month, he protested to Alexei Kosygin over the expulsion of Aleksandr Solzhenitsyn from the Soviet Union of Writers.
On 31 January 1970, Russell issued a statement condemning "Israel's aggression in the Middle East", and in particular, Israeli bombing raids being carried out deep in Egyptian territory as part of the War of Attrition, which he compared to German bombing raids in the Battle of Britain and the US bombing of Vietnam. He called for an Israeli withdrawal to the pre-Six-Day War borders, stating "The aggression committed by Israel must be condemned, not only because no state has the right to annexe foreign territory, but because every expansion is an experiment to discover how much more aggression the world will tolerate." This was Russell's final political statement or act. It was read out at the International Conference of Parliamentarians in Cairo on 3 February 1970, the day after his death.
Russell died of influenza, just after 8 pm on 2 February 1970 at his home in Penrhyndeudraeth, aged 97. His body was cremated in Colwyn Bay on 5 February 1970 with five people present. In accordance with his will, there was no religious ceremony but one minute's silence; his ashes were later scattered over the Welsh mountains. Later in 1970, on 23 October, his will was published showing he had left an estate valued at £69,423 (equivalent to £ million in ). In 1980, a memorial to Russell was commissioned by a committee including the philosopher A. J. Ayer. It consists of a bust of Russell in Red Lion Square in London sculpted by Marcelle Quinton.
Lady Katharine Jane Tait, Russell's daughter, founded the Bertrand Russell Society in 1974 to preserve and understand his work. It publishes the Bertrand Russell Society Bulletin, holds meetings and awards prizes for scholarship, including the Bertrand Russell Society Award. She also authored several essays about her father; as well as a book, My Father, Bertrand Russell, which was published in 1975. All members receive Russell: The Journal of Bertrand Russell Studies.
For the sesquicentennial of his birth, in May 2022, McMaster University's Bertrand Russell Archive, the university's largest and most heavily used research collection, organised both a physical and virtual exhibition on Russell's anti-nuclear stance in the post-war era, [https://expo.mcmaster.ca/s/scientists-for-peace/page/scientists-for-peace-introduction Scientists for Peace: the Russell-Einstein Manifesto and the Pugwash Conference], which included the earliest version of the Russell–Einstein Manifesto. The Bertrand Russell Peace Foundation held a commemoration at Conway Hall in Red Lion Square, London, on 18 May, the anniversary of his birth. For its part, on the same day, La Estrella de Panamá published a biographical sketch by Francisco Díaz Montilla, who commented that "[if he] had to characterize Russell's work in one sentence [he] would say: criticism and rejection of dogmatism."
Bangladesh's first leader, Mujibur Rahman, named his youngest son Sheikh Russel in honour of Bertrand Russell.
Marriages and issue
In 1889, Russell at 17 years of age, met the family of Alys Pearsall Smith, an American Quaker five years older, who was a graduate of Bryn Mawr College near Philadelphia. She asked him if he loved her and he cruelly replied that he did not. Russell also disliked Alys's mother, finding her controlling and cruel. A lengthy period of separation began in 1911 with Russell's affair with Lady Ottoline Morrell, and he and Alys finally divorced in 1921 to enable Russell to remarry.
During his years of separation from Alys, Russell had affairs (often simultaneous) with a number of women, including Morrell and the actress Lady Constance Malleson. Some have suggested that at this point he had an affair with Vivienne Haigh-Wood, the English governess and writer, and first wife of T. S. Eliot.
In 1921, his second marriage was to Dora Winifred Black MBE (died 1986), daughter of Sir Frederick Black. Dora was six months pregnant when the couple returned to England.
This was dissolved in 1935, having produced two children:
* John Conrad Russell, 4th Earl Russell (1921–1987)
* Lady Katharine Jane Russell (1923–2021), who married Rev. Charles Tait in 1948 and had issue
Russell's third marriage was to Patricia Helen Spence (died 2004) in 1936, with the marriage producing one child:
* Conrad Sebastian Robert Russell, 5th Earl Russell (1937–2004). 5th Earl Russell, who became a historian and one of the leading figures in the Liberal Democrat party.Titles, awards and honoursUpon his brother's death in 1931, Russell became the 3rd Earl Russell of Kingston Russell, and the subsidiary title of Viscount Amberley of Amberley and of Ardsalla. He held both titles, and the accompanying seat in the House of Lords, until his death in 1970.Honours and awards{| class"wikitable" style="width:100%;"
! style="width:20%;"| Country
! style="width:20%;"| Date
! style="width:60%;"| Award
|-
| || 1932 || De Morgan Medal
|-
| || 1934 || Sylvester Medal
|-
| || 1949 || Order of Merit
|-
| || 1950 || Nobel Prize in Literature
|-
| || 1957 || Kalinga Prize
|-
| || 1963 || Jerusalem Prize
|-
|}
Scholastic
{| class"wikitable" style"width:100%;"
! style="width:20%;"| Date
! style="width:40%;"| School/Association
! style="width:20%;"| Award/Position
|-
| 1893 || Trinity College, Cambridge || First Class Honours in Mathematics
|-
| 1894 || Trinity College, Cambridge || First Class Honours in Philosophy
|-
| 1895 || Trinity College, Cambridge || Fellowship
|-
| 1896 || London School of Economics and Political Science || Lecturer
|-
| 1899, 1901, 1910, 1915 || Trinity College, Cambridge || Lecturer
|-
| 1908 || The Royal Society || Fellowship
|-
| 1911 || Aristotelian Society || President
|-
| 1938 || University of Chicago || Visiting Professor of Philosophy
|-
| 1939 || University of California at Los Angeles || Professor of Philosophy
|-
| 1941-42 || Barnes Foundation || Lecturer
|-
| 1944-49 || Trinity College, Cambridge || Fellowship
|-
| 1949 || Trinity College, Cambridge || Lifetime Fellowship
|-
|}
Views
Philosophy
Russell is credited with being one of the founders of analytic philosophy. He was impressed by Gottfried Leibniz (1646–1716), and wrote on major areas of philosophy except aesthetics. He was prolific in the fields of metaphysics, logic and the philosophy of mathematics, the philosophy of language, ethics and epistemology. When Brand Blanshard asked Russell why he did not write on aesthetics, Russell replied that he did not know anything about it, though he hastened to add "but that is not a very good excuse, for my friends tell me it has not deterred me from writing on other subjects".
On ethics, Russell wrote that he was a utilitarian in his youth, yet he later distanced himself from this view.
For the advancement of science and protection of liberty of expression, Russell advocated The Will to Doubt, the recognition that all human knowledge is at most a best guess, that one should always remember:
For most of his adult life, Russell maintained religion to be little more than superstition and, despite any positive effects, largely harmful to people. He believed that religion and the religious outlook serve to impede knowledge and foster fear and dependency, and to be responsible for much of our world's wars, oppression, and misery. He was a member of the advisory council of the British Humanist Association and the president of Cardiff Humanists until his death.Society
Political and social activism occupied much of Russell's time for most of his life. Russell remained politically active almost to the end of his life, writing to and exhorting world leaders and lending his name to various causes. He was a prominent campaigner against Western intervention into the Vietnam War in the 1960s, writing essays and books, attending demonstrations, and even organising the Russell Tribunal in 1966 alongside other prominent philosophers such as Jean-Paul Sartre and Simone de Beauvoir, which fed into his 1967 book War Crimes in Vietnam.
Russell argued for a "scientific society", where war would be abolished, population growth would be limited, and prosperity would be shared. He suggested the establishment of a "single supreme world government" able to enforce peace, claiming that "the only thing that will redeem mankind is co-operation". He was one of the signatories of the agreement to convene a convention for drafting a world constitution. As a result, for the first time in human history, a World Constituent Assembly convened to draft and adopt the Constitution for the Federation of Earth. Russell also expressed support for guild socialism, and commented positively on several socialist thinkers and activists. According to Jean Bricmont and Normand Baillargeon, "Russell was both a liberal and a socialist, a combination that was perfectly comprehensible in his time, but which has become almost unthinkable today. He was a liberal in that he opposed concentrations of power in all its manifestations, military, governmental, or religious, as well as the superstitious or nationalist ideas that usually serve as its justification. But he was also a socialist, even as an extension of his liberalism, because he was equally opposed to the concentrations of power stemming from the private ownership of the major means of production, which therefore needed to be put under social control (which does not mean state control)."
Russell was an active supporter of the Homosexual Law Reform Society, being one of the signatories of A. E. Dyson's 1958 letter to The Times calling for a change in the law regarding male homosexual practices, which were partly legalised in 1967, when Russell was still alive.
He expressed sympathy and support for the Palestinian people and was critical of Israel's actions. He wrote in 1960 that, "I think it was a mistake to establish a Jewish State in Palestine, but it would be a still greater mistake to try to get rid of it now that it exists." In his final written document, read aloud in Cairo three days after his death on 31 January 1970, he condemned Israel as an aggressive imperialist power, which "wishes to consolidate with the least difficulty what it has already taken by violence. Every new conquest becomes the new basis of the proposed negotiation from strength, which ignores the injustice of the previous aggression." In regards to the Palestinian people and refugees, he wrote that, "No people anywhere in the world would accept being expelled en masse from their own country; how can anyone require the people of Palestine to accept a punishment which nobody else would tolerate? A permanent just settlement of the refugees in their homeland is an essential ingredient of any genuine settlement in the Middle East."
Russell advocated for a universal basic income. In his 1918 book Roads to Freedom, Russell wrote that "Anarchism has the advantage as regards liberty, Socialism as regards the inducement to work. Can we not find a method of combining these two advantages? It seems to me that we can. [...] Stated in more familiar terms, the plan we are advocating amounts essentially to this: that a certain small income, sufficient for necessaries, should be secured to all, whether they work or not, and that a larger income – as much larger as might be warranted by the total amount of commodities produced – should be given to those who are willing to engage in some work which the community recognizes as useful...When education is finished, no one should be compelled to work, and those who choose not to work should receive a bare livelihood and be left completely free."
In "Reflections on My Eightieth Birthday" ("Postscript" in his Autobiography), Russell wrote: "I have lived in the pursuit of a vision, both personal and social. Personal: to care for what is noble, for what is beautiful, for what is gentle; to allow moments of insight to give wisdom at more mundane times. Social: to see in imagination the society that is to be created, where individuals grow freely, and where hate and greed and envy die because there is nothing to nourish them. These things I believe, and the world, for all its horrors, has left me unshaken".
Freedom of opinion and expression
Russell supported freedom of opinion and was an opponent of both censorship and indoctrination. In 1928, he wrote: "The fundamental argument for freedom of opinion is the doubtfulness of all our belief... when the State intervenes to ensure the indoctrination of some doctrine, it does so because there is no conclusive evidence in favour of that doctrine ... It is clear that thought is not free if the profession of certain opinions make it impossible to make a living". In 1957, he wrote: "'Free thought' means thinking freely ... to be worthy of the name freethinker he must be free of two things: the force of tradition and the tyranny of his own passions."
Education
Russell has presented ideas on the possible means of control of education in case of scientific dictatorship governments, of the kind of this excerpt taken from Chapter II "General Effects of Scientific Technique" of "The Impact of Science on society":
He pushed his visionary scenarios even further into details, in Chapter III "Scientific Technique in an Oligarchy" of the same book, stating as an example: Selected works
Below are selected Russell's works in English, sorted by year of first publication:
* 1896. German Social Democracy. London: Longmans, Green & Co.
* 1897. An Essay on the Foundations of Geometry. Cambridge: Cambridge University Press
* 1900. A Critical Exposition of the Philosophy of Leibniz. Cambridge: Cambridge University Press
* 1903. The Principles of Mathematics. Cambridge University Press
* 1903. ''A Free man's worship, and other essays.
* 1905. On Denoting, Mind, Vol. 14. . Basil Blackwell
* 1910. Philosophical Essays. London: Longmans, Green
* 1910–1913. Principia Mathematica. (with Alfred North Whitehead). 3 vols. Cambridge: Cambridge University Press
* 1912. The Problems of Philosophy. London: Williams and Norgate
* 1914. Our Knowledge of the External World as a Field for Scientific Method in Philosophy. Chicago and London: Open Court Publishing.
* 1916. Principles of Social Reconstruction. London, George Allen and Unwin
* 1916. Why Men Fight. New York: The Century Co
* 1916. The Policy of the Entente, 1904–1914: a reply to Professor Gilbert Murray. Manchester: The National Labour Press
* 1916. Justice in War-time. Chicago: Open Court
* 1917. Political Ideals. New York: The Century Co.
* 1918. Mysticism and Logic and Other Essays. London: George Allen & Unwin
* 1918. Proposed Roads to Freedom: Socialism, Anarchism, and Syndicalism. London: George Allen & Unwin
* 1919. Introduction to Mathematical Philosophy. London: George Allen & Unwin. ( for Routledge paperback)
* 1920. The Practice and Theory of Bolshevism. London: George Allen & Unwin
* 1921. The Analysis of Mind. London: George Allen & Unwin
* 1922. The Problem of China. London: George Allen & Unwin
* 1922. Free Thought and Official Propaganda, delivered at South Place Institute London: Watts
* 1927. Selected Papers of Bertrand Russell. New York: Modern Library
* 1928. Sceptical Essays. London: George Allen & Unwin
* 1929. Marriage and Morals. London: George Allen & Unwin
* 1930. The Conquest of Happiness. London: George Allen & Unwin
* 1931. The Scientific Outlook, London: George Allen & Unwin
* 1932. Education and the Social Order, London: George Allen & Unwin
* 1934. Freedom and Organization, 1814–1914. London: George Allen & Unwin
* 1935. In Praise of Idleness and Other Essays. London: George Allen & Unwin
* 1935. Religion and Science. London: Thornton Butterworth
* 1936. Which Way to Peace?. London: Jonathan Cape
* 1937. The Amberley Papers: The Letters and Diaries of Lord and Lady Amberley, with Patricia Russell, 2 vols., London: Leonard & Virginia Woolf at the Hogarth Press; reprinted (1966) as The Amberley Papers. Bertrand Russell's Family Background, 2 vols., London: George Allen & Unwin
* 1938. Power: A New Social Analysis. London: George Allen & Unwin
* 1940. An Inquiry into Meaning and Truth. New York: W. W. Norton & Company.
* 1945. The Bomb and Civilisation. Published in the Glasgow Forward on 18 August 1945
* 1946. A History of Western Philosophy and Its Connection with Political and Social Circumstances from the Earliest Times to the Present Day New York: Simon and Schuster
* 1948. Human Knowledge: Its Scope and Limits. London: George Allen & Unwin
* 1949. Authority and the Individual. London: George Allen & Unwin
* 1950. . London: George Allen & Unwin
* 1951. New Hopes for a Changing World. London: George Allen & Unwin
* 1952. The Impact of Science on Society. London: George Allen & Unwin
* 1953. Satan in the Suburbs and Other Stories. London: George Allen & Unwin
* 1954. Human Society in Ethics and Politics. London: George Allen & Unwin
* 1954. Nightmares of Eminent Persons and Other Stories. London: George Allen & Unwin
* 1956. Portraits from Memory and Other Essays. London: George Allen & Unwin
* 1956. Logic and Knowledge: Essays 1901–1950, edited by Robert C. Marsh. London: George Allen & Unwin
* 1957. Why I Am Not A Christian and Other Essays on Religion and Related Subjects, edited by Paul Edwards. London: George Allen & Unwin
* 1958. Understanding History and Other Essays. New York: Philosophical Library
* 1958. The Will to Doubt. New York: Philosophical Library
* 1959. Common Sense and Nuclear Warfare. London: George Allen & Unwin
* 1959. My Philosophical Development. London: George Allen & Unwin
* 1959. Wisdom of the West: A Historical Survey of Western Philosophy in Its Social and Political Setting, edited by Paul Foulkes. London: Macdonald
* 1960. Bertrand Russell Speaks His Mind, Cleveland and New York: World Publishing Company
* 1961. The Basic Writings of Bertrand Russell, edited by R. E. Egner and L. E. Denonn. London: George Allen & Unwin
* 1961. Fact and Fiction. London: George Allen & Unwin
* 1961. Has Man a Future? London: George Allen & Unwin
* 1963. Essays in Skepticism. New York: Philosophical Library
* 1963. Unarmed Victory. London: George Allen & Unwin
* 1965. Legitimacy Versus Industrialism, 1814–1848. London: George Allen & Unwin (first published as Parts I and II of Freedom and Organization, 1814–1914, 1934)
* 1965. On the Philosophy of Science, edited by Charles A. Fritz, Jr. Indianapolis: The Bobbs–Merrill Company
* 1966. The ABC of Relativity. London: George Allen & Unwin
* 1967. Russell's Peace Appeals'', edited by Tsutomu Makino and Kazuteru Hitaka. Japan: Eichosha's New Current Books
* 1967. War Crimes in Vietnam. London: George Allen & Unwin
* 1951–1969. The Autobiography of Bertrand Russell, 3 vols., London: George Allen & Unwin. Vol. 2, 1956 Additionally, he wrote many pamphlets, introductions, and letters to the editor. One pamphlet titled, ''I Appeal unto Caesar': The Case of the Conscientious Objectors, ghostwritten for Margaret Hobhouse, the mother of imprisoned peace activist Stephen Hobhouse, allegedly helped secure the release from prison of hundreds of conscientious objectors.
His works can be found in anthologies and collections, including The Collected Papers of Bertrand Russell'', which McMaster University began publishing in 1983. By March 2017 this collection of his shorter and previously unpublished works included 18 volumes, and several more are in progress. A bibliography in three additional volumes catalogues his publications. The Russell Archives held by McMaster's William Ready Division of Archives and Research Collections possess over 40,000 of his letters.
See also
* Cambridge University Moral Sciences Club
* Criticism of Jesus
* Joseph Conrad (Russell's impression)
* List of peace activists
* List of pioneers in computer science
* Logicomix, a graphic novel about the foundational quest in mathematics, the narrator of the story being Bertrand Russell and with his life as the main storyline
* Information Research Department
* Type theory
* Type system
Notes
References
Citations
General and cited sources
Primary sources
* 1900, Sur la logique des relations avec des applications à la théorie des séries, Rivista di matematica 7: 115–148.
* 1901, On the Notion of Order, Mind (n.s.) 10: 35–51.
* 1902, (with Alfred North Whitehead), On Cardinal Numbers, American Journal of Mathematics 24: 367–384.
* 1948, BBC Reith Lectures: Authority and the Individual A series of six radio lectures broadcast on the BBC Home Service in December 1948.
Secondary sources
* John Newsome Crossley. ''A Note on Cantor's Theorem and Russell's Paradox, Australian Journal of Philosophy 51, 1973, 70–71.
* Ivor Grattan-Guinness. The Search for Mathematical Roots 1870–1940. Princeton: Princeton University Press, 2000.
* Alan Ryan. Bertrand Russell: A Political Life'', New York: Oxford University Press, 1981.
Further reading
*
Books about Russell's philosophy
* Alfred Julius Ayer. Russell, London: Fontana, 1972. . A lucid summary exposition of Russell's thought.
* Elizabeth Ramsden Eames. ''Bertrand Russell's Theory of Knowledge'', London: George Allen and Unwin, 1969. . A clear description of Russell's philosophical development.
* Celia Green. The Lost Cause: Causation and the Mind-Body Problem, Oxford: Oxford Forum, 2003. Contains a sympathetic analysis of Russell's views on causality.
* A. C. Grayling. Russell: A Very Short Introduction, Oxford University Press, 2002.
* Nicholas Griffin. ''Russell's Idealist Apprenticeship, Oxford: Oxford University Press, 1991.
* A. D. Irvine, ed. Bertrand Russell: Critical Assessments'', 4 volumes, London: Routledge, 1999. Consists of essays on Russell's work by many distinguished philosophers.
* Michael K. Potter. ''Bertrand Russell's Ethics'', Bristol: Thoemmes Continuum, 2006. A clear and accessible explanation of Russell's moral philosophy.
* P. A. Schilpp, ed. The Philosophy of Bertrand Russell, Evanston and Chicago: Northwestern University, 1944.
* John Slater. Bertrand Russell, Bristol: Thoemmes Press, 1994.
Biographical books
* A. J. Ayer. Bertrand Russell, New York: Viking Press, 1972, reprint ed. London: University of Chicago Press, 1988,
* Andrew Brink. Bertrand Russell: A Psychobiography of a Moralist, Atlantic Highlands, NJ: Humanities Press International, Inc., 1989,
* Ronald W. Clark. The Life of Bertrand Russell, London: Jonathan Cape, 1975,
* Ronald W. Clark. Bertrand Russell and His World, London: Thames & Hudson, 1981,
* Rupert Crawshay-Williams. Russell Remembered, London: Oxford University Press, 1970. Written by a close friend of Russell's
* John Lewis. [https://archive.org/details/bertrandrussellphilosopherhumanist Bertrand Russell: Philosopher and Humanist], London: Lawerence & Wishart, 1968
* Ray Monk. Bertrand Russell: Mathematics: Dreams and Nightmares, London: Phoenix, 1997,
* Ray Monk. Bertrand Russell: The Spirit of Solitude, 1872–1920 Vol. I, New York: Routledge, 1997,
* Ray Monk. Bertrand Russell: The Ghost of Madness, 1921–1970 Vol. II, New York: Routledge, 2001,
* Caroline Moorehead. Bertrand Russell: A Life, New York: Viking, 1993,
* George Santayana. "Bertrand Russell", in Selected Writings of George Santayana, Norman Henfrey (ed.), Cambridge: Cambridge University Press, I, 1968, pp. 326–329
* Peter Stone et al. ''[https://vernonpress.com/title?id=219 Bertrand Russell's Life and Legacy]. Wilmington: Vernon Press, 2017.
* Katharine Tait. My Father Bertrand Russell, New York: Thoemmes Press, 1975
* Alan Wood, [https://archive.org/details/in.ernet.dli.2015.114739 Bertrand Russell: The Passionate Sceptic]'', London: George Allen & Unwin, 1957.
External links
*
*
*
*
*
*
* [https://bertrandrussellsociety.org/ The Bertrand Russell Society]
* [https://www.bbc.co.uk/programmes/p04qgxlv BBC Face to Face interview] with Bertrand Russell and John Freeman, broadcast 4 March 1959
* including the Nobel Lecture, 11 December 1950 "What Desires Are Politically Important?"
* [https://www.bbc.co.uk/sounds/play/m0017cfb Interview with Ray Monk] at Today, 18 May 2022 (from 2:58:35)
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4165 | Boeing 767 | <!-- This article is a part of WP:WikiProject Aircraft. Please see WP:WikiProject Aircraft/page content for recommended layout, guidelines. -->
| introduction = September 8, 1982 with United Airlines
| retired | status In service; in cargo production<!-- Status of the program. For production status, see the produced years field below. -->
| primary_user = Delta Air Lines<!--Limit one (1) primary user. Top 4 users listed in 'primary user' and 'more users' fields based on number of their fleets as cited in Operators section. -->
| more_users = FedEx Express<br>UPS Airlines<br>United Airlines<!--Limit is three (3) TOTAL in 'more users' field (4 total users). Listed in by number in use, i.e. top users listed in Operators section. Please separate with <br />.-->
| produced = 1981–present<!-- Remains in cargo production -->
| number_built 1,326 Two years later, the manufacturer began a development study, code-named 7X7, for a new wide-body jetliner intended to replace the 707 and other early generation narrow-body airliners. This marked the manufacturer's first major international joint venture, and both Aeritalia and the CTDC received supply contracts in return for their early participation. At this stage the proposed aircraft featured two or three engines, with possible configurations including over-wing engines and a T-tail.
debut in 1982. Later it was named the Spirit of Delta Ship 102 with Delta Air Lines.|alt=Side view of twin-engine jet touching down on runway, with deployed flaps and thrust reversers]]
By 1976, a twinjet layout, similar to the one which had debuted on the Airbus A300, became the baseline configuration. While airline requirements for new wide-body aircraft remained ambiguous, Advancements in civil aerospace technology, including high-bypass-ratio turbofan engines, new flight deck systems, aerodynamic improvements, and more efficient lightweight designs were to be applied to the 7X7. Many of these features were also included in a parallel development effort for a new mid-size narrow-body airliner, code-named 7N7, which would become the 757. In February 1978, the new jetliner received the 767 model designation, and three variants were planned: a with 190 seats, a with 210 seats, and a trijet 767MR/LR version with 200 seats intended for intercontinental routes. The 767MR/LR was subsequently renamed 777 for differentiation purposes. The 767 was officially launched on July 14, 1978, when United Airlines ordered 30 of the 767-200 variant, followed by 50 more 767-200 orders from American Airlines and Delta Air Lines later that year. As development progressed, engineers used computer-aided design for over a third of the 767's design drawings, Both aircraft would ultimately receive shared design features, including avionics, flight management systems, instruments, and handling characteristics. and would be capable of operating routes up to .
The 767's fuselage width was set midway between that of the 707 and the 747 at . The fuselage was not wide enough to accommodate two standard LD3 wide-body unit load devices side-by-side, so a smaller container, the LD2, Using a conventional tail design also allowed the rear fuselage to be tapered over a shorter section, Cathode-ray tube (CRT) color displays and new electronics replaced the role of the flight engineer by enabling the pilot and co-pilot to monitor aircraft systems directly. A three-crew cockpit remained as an option and was fitted to the first production models. Ansett Australia ordered 767s with three-crew cockpits due to union demands; it was the only airline to operate 767s so configured. The 767's two-crew cockpit was also applied to the 757, allowing pilots to operate both aircraft after a short conversion course, and adding incentive for airlines to purchase both types. By this time, the 767 program had accumulated 173 firm orders from 17 customers, including Air Canada, All Nippon Airways, Britannia Airways, Transbrasil, and Trans World Airlines (TWA). The test fleet was largely used to evaluate avionics, flight systems, handling, and performance, Following 1,600 hours of flight tests, the JT9D-powered 767-200 received certification from the US Federal Aviation Administration (FAA) and the UK Civil Aviation Authority (CAA) in July 1982. The first delivery occurred on August 19, 1982, to United Airlines. The CF6-powered 767-200 commenced service three months later with Delta Air Lines. The aircraft's introduction was relatively smooth, with few operational glitches and greater dispatch reliability than prior jetliners.
Exemptions from major certification rule changes
Following the 1996 in-flight explosion of TWA Flight 800, the FAA introduced new rules about flammability reduction in 2008. In 2012, Boeing requested an exemption for the 767 from new wiring separation rules that would prevent ignition sources, because design improvements it introduced fell short of meeting such rules. One of the justification by Boeing: changes to the fuel quantity indication system would require a halt of delivery by three years as production of the 767 model was expected to end shortly. FAA gave the manufacturer three years to have a compliant system while deliveries continued. In 2014, Boeing, without a new design available, asked for and received another time-limited exemption for just the 767-300 and 767-300ER until 2019 when commercial production was expected to cease. But in 2017, with continual demand for the 767-300F, Boeing asked for another exemption up to the end of 2027, well past the revised production end date. It is noted that while Boeing requested extension of the original exemption from 2016 to 2019 based upon the cost of upgrading the design and their low production rate and ending production in 2019, Boeing developed the KC-46 tanker (based on the 767) which fully compliant with the new rulings and is assembled on the same production line as the 767. Since the 2019 exemption went into effect, Boeing has increased production of the freighter to satisfy demand.Stretched derivativesFirst stretch: -300/-300ER/FForecasting airline interest in larger-capacity models, Boeing announced the stretched in 1983 and the extended-range 767-300ER in 1984. Japan Airlines placed the first order for the -300 in September 1983. the type entered service with Japan Airlines on October 20, 1986. By the end of the decade, 767s crossed the Atlantic more frequently than all other aircraft types combined. The 767 also propelled the growth of point-to-point flights which bypassed major airline hubs in favor of direct routes. Taking advantage of the aircraft's lower operating costs and smaller capacity, operators added non-stop flights to secondary population centers, thereby eliminating the need for connecting flights. Six months later, the carrier temporarily grounded its entire 767 fleet after discovering cracks in the engine pylons of several aircraft. The cracks were related to the extra weight of the RB211 engines, which are heavier than other 767 engines.
In January 1993, following an order from UPS Airlines, Boeing launched a freighter variant, the 767-300F, which entered service with UPS on October 16, 1995. The proposed 767-400X, a second stretch of the aircraft, offered a 12 percent capacity increase versus the , The variant was specifically aimed at Delta Air Lines' pending replacement of its aging Lockheed L-1011 TriStars, and faced competition from the A330-200, a shortened derivative of the Airbus A330. The type completed its first flight on October 9, 1999, and entered service with Continental Airlines on September 14, 2000. In 2001, Boeing dropped plans for a longer-range model, the 767-400ERX, in favor of the proposed Sonic Cruiser, a new jetliner which aimed to fly 15 percent faster while having comparable fuel costs to the 767. The following year, Boeing announced the KC-767 Tanker Transport, a second military derivative of the 767-200ER. Launched with an order in October 2002 from the Italian Air Force, the KC-767 was intended for the dual role of refueling other aircraft and carrying cargo. The plan was suspended in March 2004 amid a conflict of interest scandal, The first KC-767s were delivered in 2008 to the Japan Self-Defense Forces. The following year, the manufacturer announced the 7E7, a mid-size 767 successor made from composite materials which promised to be 20 percent more fuel efficient. The new jetliner was the first stage of a replacement aircraft initiative called the Boeing Yellowstone Project. Subsequently, the 767-300ER was offered to customers affected by 787 delays, including All Nippon Airways and Japan Airlines. Some aging 767s, exceeding 20 years in age, were also kept in service past planned retirement dates due to the delays. To extend the operational lives of older aircraft, airlines increased heavy maintenance procedures, including D-check teardowns and inspections for corrosion, a recurring issue on aging 767s. The first 787s entered service with All Nippon Airways in October 2011, 42 months behind schedule.Continued production, the largest 767-300F operator, placed additional orders in 2007.|altSide quarter view of UPS twin-engine freighter in flight, with extended gear]]
767-300F]]
In 2007, the 767 received a production boost when UPS and DHL Aviation placed a combined 33 orders for the 767-300F. Renewed freighter interest led Boeing to consider enhanced versions of the 767-200 and 767-300F with increased gross weights, 767-400ER wing extensions, and 777 avionics. Net orders for the 767 declined from 24 in 2008 to just three in 2010. During the same period, operators upgraded aircraft already in service; in 2008, the first 767-300ER retrofitted with blended winglets from Aviation Partners Incorporated debuted with American Airlines. Other carriers including All Nippon Airways and Delta Air Lines also ordered winglet kits.
On February 2, 2011, the 1,000th 767 rolled out, destined for All Nippon Airways. The 1,000th aircraft also marked the last model produced on the original 767 assembly line. Despite the reduced backlog, Boeing officials expressed optimism that additional orders would be forthcoming. for its KC-X fleet renewal program. FedEx Express agreed to buy 19 more of the −300F variant in June 2012. In June 2015, FedEx said it was accelerating retirements of planes both to reflect demand and to modernize its fleet, recording charges of $276 million (~$}} in ). On July 21, 2015, FedEx announced an order for 50 767-300F with options on another 50, the largest order for the type. With the announcement FedEx confirmed that it has firm orders for 106 of the freighters for delivery between 2018 and 2023.
With its successor, the Boeing New Midsize Airplane, that was planned for introduction in 2025 or later, and the 787 being much larger, Boeing could restart a passenger 767-300ER production to bridge the gap. A demand for 50 to 60 aircraft could have to be satisfied. Having to replace its 40 767s, United Airlines requested a price quote for other widebodies. In November 2017, Boeing CEO Dennis Muilenburg cited interest beyond military and freighter uses.<!--
In its first quarter of 2018 earnings report, Boeing plans to increase its production from 2.5 to 3 monthly beginning in January 2020 due to increased demand in the cargo market, as FedEx had 56 on order, UPS has four, and an unidentified customer has three on order.<!--
In 2019, unit cost was US$217.9 million for a -300ER, and US$220.3 million for a -300F.
Production of the 767 was expected to cease by the end of 2027 due to more stringent emissions and noise limits that will go into effect in 2028. However, , the US Congress is considering giving Boeing a waiver to continue to produce the 767 freighter for an additional five years. If granted, these aircraft would be restricted to domestic use within the US only. Boeing is widely expected to begin production of 787 Freighter during that extension period. Continued development 767-X (partial double-deck)
After the debut of the first stretched 767s, Boeing sought to address airline requests for greater capacity by proposing larger models, including a partial double-deck version informally named the "Hunchback of Mukilteo" (from a town near Boeing's Everett factory) with a 757 body section mounted over the aft main fuselage. In 1986, Boeing proposed the 767-X, a revised model with extended wings and a wider cabin, but received little interest. 767-400ERX In March 2000, Boeing was to launch the 259-seat 767-400ERX with an initial order for three from Kenya Airways with deliveries planned for 2004, as it was proposed to Lauda Air.<!--ref nameFlight20march2000-->
Increased gross weight and a tailplane fuel tank would have boosted its range by , and GE could offer its CF6-80C2/G2. Rolls-Royce offered its Trent 600 for the 767-400ERX and the Boeing 747X.
Offered in July, the longer-range -400ERX would have a strengthened wing, fuselage and landing gear for a 15,000 lb (6.8 t) higher MTOW, up to 465,000 lb (210.92 t).<!--ref name=Boeing26july2000-->
Thrust would rise to for better takeoff performance, with the Trent 600 or the General Electric/Pratt & Whitney Engine Alliance GP7172, also offered on the 747X.<!--ref name=Boeing26july2000-->
Range would increase by to , with an additional fuel tank of in the horizontal tail.<!--ref nameBoeing26july2000-->
The 767-400ERX would offer the capacity of the Airbus A330-200 with 3% lower fuel burn and costs.
Boeing cancelled the variant development in 2001. 767-XF (re-engine) In October 2019, Boeing was reportedly studying a re-engined 767-XF for entry into service around 2025, based on the 767-400ER with an extended landing gear to accommodate larger General Electric GEnx turbofan engines.<!--ref nameFlight10oct2019-->
The cargo market is the main target, but a passenger version could be a cheaper alternative to the proposed New Midsize Airplane.DesignOverview, The airframe further incorporates Carbon-fiber-reinforced polymer composite material wing surfaces, Kevlar fairings and access panels, plus improved aluminum alloys, which together reduce overall weight by versus preceding aircraft. To prevent damage if the tail section contacts the runway surface during takeoff, 767-300 and 767-400ER models are fitted with a retractable tailskid.
All passenger Boeing 767 models have full-sized doors at the front and rear of the aircraft. The 767-300 and 767-300ER typically have either two overwing exits or an additional full-sized mid-cabin door along with a single overwing exit. A raised cockpit floor and the same forward cockpit windows result in similar pilot viewing angles. Related design and functionality allows 767 pilots to obtain a common type rating to operate the 757 and share the same seniority roster with pilots of either aircraft.Flight systems
(EFIS) and EICAS screens allowed two-crew operations]]
The original Boeing 767 flight deck features a two-crew glass cockpit, the first of its kind on a Boeing airliner, developed jointly with the narrow-body 757. This design allows for a common pilot type rating between the two aircraft. The cockpit includes six Rockwell Collins CRT screens that display electronic flight instrument system (EFIS) and engine indication and crew alerting system (EICAS) information, eliminating the need for a flight engineer by enabling pilots to manage monitoring tasks. These CRT screens replace the traditional electromechanical instruments used in earlier aircraft. In 1984, the 767 became the first aircraft to receive FAA certification for CAT IIIb landings, permitting operations with a minimum visibility of . The 767-400ER further simplifies the cockpit layout with six Rockwell Collins LCD screens, designed for operational similarity with the 777 and 737NG. To maintain commonality, these LCD screens can be configured to present information in the same format as earlier 767 models.Interior
with two aisles and seven seats per row in 2–3–2 layout.]]
The 767 features a twin-aisle cabin with a typical configuration of six abreast in business class and seven across in economy. As a result, the aircraft can be largely occupied before center seats need to be filled,
The 767 interior introduced larger overhead bins and more lavatories per passenger than previous aircraft. A single, large galley is installed near the aft doors, allowing for more efficient meal service and simpler ground resupply. Subsequently, adopted for all new-build 767s, the Signature Interior features even larger overhead bins, indirect lighting, and sculpted, curved panels. The 767-400ER also received larger windows derived from the 777. Older 767s can be retrofitted with the Signature Interior. as well as aftermarket modifications such as the NuLook 767 package by Heath Tecna.Operational historybegan operating the first ETOPS flights in May 1985. |altTWA jetliner in red and white livery during takeoff, with landing gears still down.]]
In its first year, the 767 logged a 96.1 percent dispatch rate, which exceeded the industry average for all-new aircraft. Ethiopian Airlines placed the first order for the type in December 1982. Featuring increased gross weight and greater fuel capacity, the extended-range model could carry heavier payloads at distances up to , and was targeted at overseas customers.
In the mid-1980s, the 767 and its European rivals, the Airbus A300 and A310, spearheaded the growth of twinjet flights across the northern Atlantic under extended-range twin-engine operational performance standards (ETOPS) regulations, the FAA's safety rules governing transoceanic flights by aircraft with two engines. In 1976, the A300 was the first twinjet to secure permission to fly 90 minutes away from diversion airports, up from 60 minutes. In May 1985, the FAA granted its first approval for 120-minute ETOPS flights to the 767, on an individual airline basis starting with TWA, provided that the operator met flight safety criteria. The Airbus A310 secured approval for 120-minute ETOPS flights one month later in June. The larger safety margins were permitted because of the improved reliability demonstrated by twinjets and their turbofan engines. and all available engines received approval by 1993. Regulatory approval spurred the expansion of transoceanic flights with twinjet aircraft and boosted the sales of both the 767 and its rivals.
Variants
with a low wing, twin underwing turbofans, and a conventional tail.]]
The 767 has been produced in three fuselage lengths. Longer-range variants include the 767-200ER and 767-300ER, Subsequent to the capacity number, designations may append the range identifier, though -200ER and -300ER are company marketing designations and not certificated as such. The International Civil Aviation Organization (ICAO) aircraft type designator system uses a similar numbering scheme, but adds a preceding manufacturer letter;
767-200
incident in 1983.]]
The 767-200 was the original model and entered service with United Airlines in 1982.<!-- Updates require a newer reference. --> The type's competitors included the Airbus A300 and A310.
The 767-200 was produced until 1987 when production switched to the extended-range 767-200ER. and Israel Aerospace Industries has been licensed to perform cargo conversions since 2005. The conversion process entails the installation of a side cargo door, strengthened main deck floor, and added freight monitoring and safety equipment. A military tanker variant of the Boeing 767-2C is developed for the USAF as the KC-46.
This version was originally offered with the same engines as the , while more powerful Pratt & Whitney PW4000 and General Electric CF6 engines later became available. The 767-300 was produced from 1986 until 2000. Deliveries for the type totaled 104 aircraft with no unfilled orders remaining. , 767-300ER deliveries stand at 583 with no unfilled orders. At its 1990s peak, a new 767-300ER was valued at $85 million, dipping to around $12 million in 2018 for a 1996 build.
767-300F
767-300F|alt=Side quarter view of twin-engine jetliner in flight, with extended gear]]
The 767-300F, the production freighter version of the 767-300ER, entered service with UPS Airlines in 1995. The 767-300F can hold up to 24 standard pallets on its main deck and up to 30 LD2 unit load devices on the lower deck, The freighter has a main deck cargo door and crew exit, while the lower deck features two starboard-side cargo doors and one port-side cargo door. The conversion work was performed in Singapore by ST Aerospace Services, the first supplier to offer a 767-300BCF program,
767-400ER<!-- This section is linked from Boeing 747 -->
in 2011.
This variant is long.]]
The 767-400ER, the first Boeing wide-body jet resulting from two fuselage stretches, entered service with Continental Airlines in 2000. The wingspan is also increased by through the addition of raked wingtips. Power is provided by uprated General Electric CF6 engines. Because its fuel capacity was not increased over preceding models, the 767-400ER has a range of , less than previous extended-range 767s. Boeing dropped the 767-400ER and the -200ER from its pricing list in 2014.
A total of 37 767-400ERs were delivered to the variant's two airline customers, Continental Airlines (now merged with United Airlines as of 2010) and Delta Air Lines, with no unfilled orders. The type's closest competitor is the Airbus A330-200.
Military and government
Versions of the 767 serve in a number of military and government applications, with responsibilities ranging from airborne surveillance and refueling to cargo and VIP transport. Several military 767s have been derived from the 767-200ER, Intended to evaluate the feasibility of using airborne optical sensors to detect and track hostile intercontinental ballistic missiles, the modified aircraft first flew on August 21, 1987. Alterations included a large "cupola" or hump on the top of the aircraft from above the cockpit to just behind the trailing edge of the wings, The aircraft was later renamed as the Airborne Surveillance Testbed (AST). Following the end of the AST program in 2002, the aircraft was retired for scrapping.<!-- The aircraft was removed from the FAA registry in 2007 and ultimately scrapped. -->
E-767 AWACS|alt=Side view of Japan military reconnaissance aircraft on airport runway, with dorsal mounted sensor pallet]]
* E-767 – the Airborne Early Warning and Control (AWACS) platform for the Japan Self-Defense Forces; it is essentially the Boeing E-3 Sentry mission package on a 767-200ER platform. E-767 modifications, completed on 767-200ERs flown from the Everett factory to Boeing Integrated Defense Systems in Wichita, Kansas, include strengthening to accommodate a dorsal surveillance radar system, engine nacelle alterations, as well as electrical and interior changes. Japan operates four E-767s. The first E-767s were delivered in March 1998.
KC-767A tanker|alt=A mostly-gray KC-767, with refueling probe extended, transferring fuel to a B-52 in the left-bottom hand corner]]
* KC-767 Tanker Transport – the 767-200ER-based aerial refueling platform operated by the Italian Air Force (Aeronautica Militare), and the Japan Self-Defense Forces. The Aeronautica Militare received the first of its four KC-767As in January 2011.
* KC-767 Advanced Tanker – the 767-200ER-based aerial tanker developed for the USAF KC-X tanker competition. and then dropped amid conflict of interest allegations. and features a fly-by-wire refueling boom, a remote vision refueling system, and a 767-400ER-based flight deck with LCD screens and head-up displays. In 2013, the Brazilian Air Force ordered two 767-300ER tanker conversions from IAI for its KC-X2 program.
* E-10 MC2A – the Northrop Grumman E-10 was to be a 767-400ER-based replacement for the USAF's 707-based E-3 Sentry AWACS, Northrop Grumman E-8 Joint STARS, and RC-135 SIGINT aircraft. The E-10 would have included an all-new AWACS system, with a powerful active electronically scanned array (AESA) that was also capable of jamming enemy aircraft or missiles. One 767-400ER aircraft was built as a testbed for systems integration, but the program was terminated in January 2009 and the prototype was later sold to Bahrain as a VIP transport. The type's competitors included the Airbus A300 and A310.Model summary{| class"wikitable" style="text-align:center; font-size:96%;"
|-
! Model Series!!|ICAO code including 19 hull-loss accidents. Eleven fatal crashes, including seven hijackings, have resulted in a total of 854 occupant fatalities.AccidentsThe airliner's first fatal crash, Lauda Air Flight 004, occurred near Bangkok on May 26, 1991, following the in-flight deployment of the left engine thrust reverser on a 767-300ER. None of the 223 aboard survived. As a result of this accident, all 767 thrust reversers were deactivated until a redesign was implemented. Investigators determined that an electronically controlled valve, common to late-model Boeing aircraft, was to blame. A new locking device was installed on all affected jetliners, including 767s.
On October 31, 1999, EgyptAir Flight 990, a 767-300ER, crashed off Nantucket, Massachusetts, in international waters killing all 217 people on board. The United States National Transportation Safety Board (NTSB) concluded "not determined", but determined the probable cause to be a deliberate action by the first officer; the Egyptian government disputed this conclusion.
On April 15, 2002, Air China Flight 129, a 767-200ER, crashed into a hill amid inclement weather while trying to land at Gimhae International Airport in Busan, South Korea. The crash resulted in the death of 129 of the 166 people on board, and the cause was attributed to pilot error. This was the deadliest plane crash in South Korea at the time.
On February 23, 2019, Atlas Air Flight 3591, a Boeing 767-300ERF air freighter operating for Amazon Air, crashed into Trinity Bay near Houston, Texas, while on descent into George Bush Intercontinental Airport; both pilots and the single passenger were killed. The cause was attributed to pilot error and spatial disorientation.
; Hull losses
On November 1, 2011, LOT Polish Airlines Flight 16, a 767-300ER, safely landed at Warsaw Chopin Airport in Warsaw, Poland, after a mechanical failure of the landing gear forced an emergency landing with the landing gear retracted. There were no injuries, but the aircraft involved was damaged and written off. At the time aviation analysts speculated that it may have been the first instance of a complete landing gear failure in the 767's service history. Subsequent investigation determined that while a damaged hose had disabled the aircraft's primary landing gear extension system, an otherwise functional backup system was inoperative due to an accidentally deactivated circuit breaker.
On October 28, 2016, American Airlines Flight 383, a 767-300ER with 161 passengers and 9 crew members, aborted takeoff at Chicago O'Hare Airport following an uncontained failure of the right GE CF6-80C2 engine. The engine failure, which hurled fragments over a considerable distance, caused a fuel leak, resulting in a fire under the right wing. Fire and smoke entered the cabin. All passengers and crew evacuated the aircraft, with 20 passengers and one flight attendant sustaining minor injuries using the evacuation slides.
; Hijackings
The 767 has been involved in six hijackings, three resulting in loss of life, this was a rare example of occupants surviving a land-based aircraft ditching on water. Two 767s were involved in the September 11 attacks on the World Trade Center in 2001, resulting in the collapse of its two main towers. American Airlines Flight 11, a 767-200ER, crashed into the North Tower, killing all 92 people on board, and United Airlines Flight 175, a , crashed into the South Tower, with the death of all 65 on board. In addition, more than 2,600 people were killed in the towers or on the ground. A failed shoe bomb attempt in December 2001 involved an American Airlines 767-300ER.Incidents<!--notable only -->
The 767's first incident was Air Canada Flight 143, a , on July 23, 1983. The airplane ran out of fuel at an altitude of about 41,000 feet. Eventually, the pilots had to glide with both engines out for almost to an emergency landing at Gimli, Manitoba, Canada. The pilots used the aircraft's ram air turbine to power the hydraulic systems for aerodynamic control. There were no fatalities and only minor injuries. This aircraft was nicknamed "Gimli Glider" after its landing site. The aircraft, registered as C-GAUN, continued flying for Air Canada until its retirement in January 2008.
In January 2014, the U.S. Federal Aviation Administration issued a directive that ordered inspections of the elevators on more than 400 767s beginning in March 2014; the focus was on fasteners and other parts that can fail and cause the elevators to jam. The issue was first identified in 2000 and has been the subject of several Boeing service bulletins. The inspections and repairs are required to be completed within six years. The aircraft has also had multiple occurrences of "uncommanded escape slide inflation" during maintenance or operations, and during flight. In late 2015, the FAA issued a preliminary directive to address the issue. Aircraft on display |altSide view of a parked Delta Air Lines twin-engine jet in hangar, with stairs mounted next to the aircraft's forward door]]
As new 767 variants roll off the assembly line, older series models have been retired and converted to cargo use, stored, or scrapped. One complete aircraft, N102DA, is the first to operate for Delta Air Lines and the twelfth example built.
In 2013 a Brazilian entrepreneur purchased a 767-200 that had operated for the now-defunct carrier Transbrasil under the registration PT-TAC. The aircraft, which was sold at a bankruptcy auction, was placed on outdoor display in Taguatinga as part of a proposed commercial development. , however, the development has not come to fruition. The aircraft is devoid of engines or landing gear and has deteriorated due to weather exposure and acts of vandalism but remains publicly accessible to view.
Specifications
Below is an organized chart composed of the variants of the 767 and their specifications.
{| class"wikitable sortable sticky-header" style"text-align: center"
|+767 Airplane Characteristics
|-
! Variant
! 767-200 !! 767-200ER
! 767-300 !! 767-300ER/F
! 767-400ER
|-
! Cockpit crew
| colspan=5 | Two
|-
! 3-class seats
| colspan=2 | 174 (15, 40, 119)
| colspan=2 | 210 (18F, 42J, 150Y)
| 243 (16F, 38J, 189Y)
|-
! 2-class seats)
| colspan2 | 245Y (290)
| colspan2 | 290Y (351)
| 409Y (375)
|-
! Cargo}}
| 4,905 cu ft (138.9 m<sup>3</sup>)
|-
!
| colspan=2 | 22 LD2s
| colspan=2 | 30 LD2s
| 38 LD2s
|-
! Length
| colspan=2 | 159 ft 2 in (48.51 m)
| colspan=2 | 180 ft 3 in (54.94 m)
| 201 ft 4 in (61.37 m)
|-
! Wingspan
| 3,130 sq ft<sup>2</sup> (290.7 m<sup>2</sup>)
|-
! Fuselage
| colspan5 | Exterior: 17 ft 9 in (5.41 m) height, 16 ft 6 in (5.03 m) width;
| 315,000 lb (142.9 t)
| 395,000 lb (179.2 t)
| 350,000 lb (158.8 t)
| 412,000 lb (186.9 t)
| 450,000 lb (204.1 t)
|-
! Max. payload
| <ref name767_airport_report/>
| 6,590 nmi<br/>(12,200 km; )
| <ref name767_airport_report/>
| 5,980 nmi<br/>(11,070 km; )<ref namebackgrounder/>}}
| 5,625 nmi<br/>(10,415 km; )
|-
! Cruise speed
| colspan5 | Long range-Maximum: at altitude of <ref namecivilJetAircraftDesign/>
|-
! Ceiling
| colspan5 | <ref name"rgl.faa.gov"/>
|-
! Takeoff<ref name=767specs/>
| <ref name767_airport_report/>
| 8,150 ft (2,480 m)
| <ref name767_airport_report/>
| 8,700 ft (2,650 m)
| 10,800 ft (3,290 m)
|-
! Engines (×2)<ref name=acap-weights/>
| JT9D / PW4000 / CF6
| colspan=2 | JT9D / PW4000 / CF6 / RB211
| PW4000 / CF6 / RB211
| CF6 / PW4000
|-
! Thrust (×2)<ref name=acap-weights/>
|
|
|
|
|
|}
See also
Notes
References
Sources
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External links
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767
Category:1980s United States airliners
Category:Low-wing aircraft
Category:Twinjets
Category:Aircraft with retractable tricycle landing gear
Category:Wide-body aircraft
Category:Aircraft first flown in 1981 | https://en.wikipedia.org/wiki/Boeing_767 | 2025-04-05T18:26:42.807295 |
4166 | Bill Walsh | |birth_place=Los Angeles, California, U.S.
|death_date=
|death_place=Woodside, California, U.S.
|high_school=Hayward (CA)
|college=San Jose State
|pastcoaching=
* Washington HS (CA) (1957–1959)<br />Head coach
* California (1960–1962)<br />Receivers coach
* Stanford (1963–1965)<br />Defensive backs coach
* Oakland Raiders (1966)<br />Running backs coach
* San Jose Apaches (1967)<br />Head coach
* Cincinnati Bengals (1968–)<br />Assistant coach
* San Diego Chargers ()<br />Offensive coordinator
* Stanford (1977–1978)<br />Head coach
* San Francisco 49ers (–)<br />Head coach
* Stanford (1992–1994)<br />Head coach
|pastadmin=
* San Francisco 49ers (–)<br>General manager
* San Francisco 49ers (-)<br>President
* San Francisco 49ers (–)<br>Vice president and general manager
* San Francisco 49ers (–)<br>Consultant
|highlights=
* 3× Super Bowl champion (XVI, XIX, XXIII)
* AP NFL Coach of the Year (1981)
* 2× 101 Awards NFC Coach of the Year (1981, 1984)
* 2× UPI NFC Coach of the Year (1981, 1984)
* NFL 1980s All-Decade Team
* NFL 100th Anniversary All-Time Team
* San Francisco 49ers Hall of Fame
* Pac-8 Coach of the Year (1977)
* Amos Alonzo Stagg Award (2008)
| coachregrecord = NFL: 92–59–1 ()<br>NCAA: 34–24–1 ()
| coachplayoffrecord = 10–4 ()
| coachrecord NFL: <br>NCAA:
|pfrcoach=WalsBi0
|HOF=bill-walsh
}}
William Ernest Walsh (November 30, 1931 – July 30, 2007) was an American professional and college football coach. He served as head coach of the San Francisco 49ers and the Stanford Cardinal, during which time he popularized the West Coast offense. After retiring from the 49ers, Walsh worked as a sports broadcaster for several years and then returned as head coach at Stanford for three seasons.
Walsh went 102–63–1 (wins-losses-ties) with the 49ers, winning 10 of his 14 postseason games along with six division titles, three NFC Championship titles, and three Super Bowls. He was named NFL Coach of the Year in 1981 and 1984. In 1993, he was elected to the Pro Football Hall of Fame. He is widely considered amongst the greatest coaches in NFL history.
Early life
Walsh was born in Fremont, California. He attended Hayward High School in Hayward in the San Francisco Bay Area, where he played running back.
Walsh played quarterback at the College of San Mateo for two seasons. (Both John Madden and Walsh played and coached at the College of San Mateo early in their careers.) After playing at the College of San Mateo, Walsh transferred to San José State University, where he played tight end and defensive end. He also participated in intercollegiate boxing, winning the golden glove.
Walsh graduated from San Jose State with a bachelor's degree in physical education in 1955. After two years in the U.S. Army participating on their boxing team, Walsh built a championship team at Washington High School in Fremont before becoming an assistant coach at Cal, Stanford and then the Oakland Raiders in 1966.
College coaching career
He served under Bob Bronzan as a graduate assistant coach on the Spartans football coaching staff and graduated with a master's degree in physical education from San Jose State in 1959. His master's thesis was entitled Flank Formation Football -- Stress: Defense. Thesis 796.W228f.
Following graduation, Walsh coached the football and swim teams at Washington High School in Fremont, California. While there he interviewed for an assistant coaching position with the new head coach of the University of California, Berkeley California Golden Bears football team, Marv Levy.
"I was very impressed, individually, by his knowledge, by his intelligence, by his personality, and hired him," Levy said. Levy and Walsh, two future NFL Hall of Famers, would never produce a winning season for the Golden Bears.
Leaving Berkeley, Walsh did a stint at Stanford University as an assistant coach of its Cardinal football team before beginning his pro coaching career.
Professional coaching career
Early years
Walsh began his pro coaching career in 1966 as an assistant with the AFL's Oakland Raiders. There he was versed in the downfield-oriented "vertical" passing offense favored by Al Davis, an acolyte of Sid Gillman.
Walsh left the Raiders the next year to become the head coach and general manager of the San Jose Apaches of the Continental Football League (CFL). He led the Apaches to second place in the Pacific Division, but the team ceased all football operations prior to the start of the 1968 CFL season.
In 1968, Walsh joined the staff of head coach Paul Brown of the AFL expansion Cincinnati Bengals, where he coached wide receivers from 1968 to 1970. It was there that Walsh developed the philosophy now known as the "West Coast offense". Cincinnati's new quarterback, Virgil Carter, was known for his great mobility and accuracy but lacked a strong arm necessary to throw deep passes. To suit his strengths, Walsh suggested a modification of the downfield based "vertical passing scheme" he had learned during his time with the Raiders with one featuring a "horizontal" approach that relied on quick, short throws, often spreading the ball across the entire width of the field. In 1971 Walsh was given the additional responsibility of coaching the quarterbacks, and Carter went on to lead the league in pass completion percentage.
Ken Anderson eventually replaced Carter as starting quarterback, and, together with star wide receiver Isaac Curtis, produced a consistent, effective offensive attack.
When Brown retired as head coach following the 1975 season and appointed Bill "Tiger" Johnson as his successor, Walsh resigned and served as an assistant coach in 1976 for the San Diego Chargers under head coach Tommy Prothro. In a 2006 interview, Walsh claimed that during his tenure with the Bengals, Brown "worked against my candidacy" to be a head coach anywhere in the league. "All the way through I had opportunities, and I never knew about them", Walsh said. "And then when I left him, he called whoever he thought was necessary to keep me out of the NFL." Walsh also claimed that Brown kept talking him down any time Brown was called by NFL teams considering hiring Walsh as a head coach.
In 1977, Walsh was hired by Stanford University as the head coach of its Cardinal football team, where he stayed for two seasons. He was quite successful, with his teams posting a 9–3 record in 1977 with a win in the Sun Bowl, and going 8–4 in 1978 with a win in the Bluebonnet Bowl. His notable players at Stanford included quarterbacks Guy Benjamin, Steve Dils, wide receivers James Lofton and Ken Margerum, linebacker Gordy Ceresino, and running back Darrin Nelson. Walsh was the Pac-8 Conference Coach of the Year in 1977.
49ers head coach
On January 9, 1979, Walsh resigned as head coach at Stanford, and San Francisco 49ers team owner Edward J. DeBartolo, Jr. fired head coach Fred O'Connor and general manager Joe Thomas following a 2–14 in 1978 season. Walsh was appointed head coach of the 49ers the next day.
The 49ers went 2-14 again in 1979. Hidden behind that record were organizational changes made by Walsh that set the team on a better course, including selecting Notre Dame quarterback Joe Montana in the third round of the 1979 NFL draft.
In 1980, starting quarterback Steve DeBerg got the 49ers off to a 3–0 start, but after a week 6 blowout loss to the Dallas Cowboys by a score of 59–14, Walsh gave Montana a chance to start. On December 7 vs. the New Orleans Saints, the second-year player brought the 49ers back from a 35–7 halftime deficit to a 38–35 overtime win. In spite of this switch, the team struggled to a 6–10 finish – a record that belied a championship team in the making.
1981 championship
In 1981, Walsh's efforts as head coach led the team to a 13–3 regular season. Key victories were two wins each over the Los Angeles Rams and the Dallas Cowboys. The Rams were only two seasons removed from a Super Bowl appearance, and had dominated the series with the 49ers since 1967, winning 23, losing 3 and tying 1. San Francisco's two wins over the Rams in 1981 marked the shift of dominance in favor of the 49ers that lasted until 1998 with 30 wins (including 17 consecutively) against only 6 defeats. The 49ers blew out the Cowboys in week 6 of the regular season. On Monday Night Football that week, the win was not included in the halftime highlights. Walsh felt that this was because the Cowboys were scheduled to play the Rams the next week in a Sunday night game and that showing the highlights of the 49ers' win would potentially hurt the game's ratings. However, Walsh used this as a motivating factor for his team, who felt they were disrespected.
The 49ers faced the Cowboys again in the NFC title game. The contest was very close, and in the fourth quarter Walsh called a series of running plays as the 49ers marched down the field against the Cowboys' prevent defense, which had been expecting the 49ers to mainly pass. The 49ers came from behind to win the game on Joe Montana's pass completion to Dwight Clark for a touchdown, a play that came to be known simply as The Catch, propelling Walsh to his first appearance in a Super Bowl. Walsh would later write that the 49ers' two wins over the Rams showed a shift of power in their division, while the wins over the Cowboys showed a shift of power in the conference.
Two weeks later, on January 24, 1982, San Francisco faced the Cincinnati Bengals in Super Bowl XVI, winning 26–21 for the team's first NFL championship. Only a year removed from back-to-back two-win seasons, the 49ers had risen from the cellar to the top of the NFL in just two seasons. What came to be known as the West Coast offense developed by Walsh had proven a winner.
In all, Walsh served as 49ers head coach for 10 years, winning three Super Bowl championships, in the 1981, 1984, and 1988 seasons, and establishing a new NFL record.
Walsh had a disciplined approach to game-planning, famously scripting the first 10–15 offensive plays before the start of each game. His innovative play calling and design earned him the nickname "The Genius". In the ten-year span under Walsh, San Francisco scored 3,714 points (24.4 per game), the most of any team in the league.
In addition to Joe Montana, Walsh drafted Ronnie Lott, Charles Haley, and Jerry Rice, each one going on to the Pro Football Hall of Fame. He also traded a 2nd and 4th round pick in the 1987 draft for Steve Young, who took over from Montana, led the team to Super Bowl success, and was enshrined in Canton after his playing career. Walsh's success at every level of football, especially with the 49ers, earned him his own ticket to Canton in 1993.
On January 22, 1989, Walsh coached his final game with the 49ers, the memorable Super Bowl XXIII in which San Francisco beat Cincinnati 20–16. Walsh resigned as the 49ers head coach after the game. Walsh admitted years later that he immediately regretted the decision saying that he left too soon.
Coaching tree
Upline
Walsh's upline coaching tree included working as assistant for American Football League great and Hall of Fame head coach Al Davis and NFL legend and Hall of Famer Paul Brown, and, through Davis, AFL great and Hall of Fame head coach Sid Gillman of the then AFL Los Angeles/San Diego Chargers.
Downline
Tree updated through December 9, 2015.
Many Walsh assistants went on to become head coaches,. including George Seifert, Mike Holmgren, Ray Rhodes, and Dennis Green. Seifert succeeded Walsh as 49ers head coach, and guided San Francisco to victories in Super Bowl XXIV and Super Bowl XXIX. Holmgren won a Super Bowl with the Green Bay Packers, and made 3 Super Bowl appearances as a head coach: 2 with the Packers, and another with the Seattle Seahawks. These coaches in turn have their own disciples who have used Walsh's West Coast system, such as former Denver Broncos head coach Mike Shanahan and former Houston Texans head coach Gary Kubiak. Mike Shanahan was an offensive coordinator under George Seifert and went on to win Super Bowl XXXII and Super Bowl XXXIII during his time as head coach of the Denver Broncos. Kubiak was first a quarterback coach with the 49ers, and then offensive coordinator for Shanahan with the Broncos. In 2015, he became the Broncos' head coach and led Denver to victory in Super Bowl 50. Dennis Green trained Tony Dungy, who won a Super Bowl with the Indianapolis Colts, and Brian Billick with his brother-in law and linebackers coach Mike Smith. Billick won a Super Bowl as head coach of the Baltimore Ravens.
Mike Holmgren trained many of his assistants to become head coaches, including Jon Gruden and Andy Reid. Gruden won a Super Bowl with the Tampa Bay Buccaneers. Reid served as head coach of the Philadelphia Eagles from 1999 to 2012, and guided the Eagles to multiple winning seasons and numerous playoff appearances, including 1 Super Bowl appearance. Ever since 2013, Reid has served as head coach of the Kansas City Chiefs. He was finally able to win a Super Bowl, when his Chiefs defeated the San Francisco 49ers in Super Bowl LIV, and two consecutive when his Chiefs defeated the Eagles in Super Bowl LVII and the San Francisco 49ers in Super Bowl LVIII. In addition to this, Marc Trestman, former head coach of the Chicago Bears, served as offensive coordinator under Seifert in the 90's. Gruden himself would train Mike Tomlin, who led the Pittsburgh Steelers to their sixth Super Bowl championship, and Jim Harbaugh, whose 49ers would face his brother, John Harbaugh, whom Reid himself trained, and the Baltimore Ravens at Super Bowl XLVII, which marked the Ravens' second World Championship.
Bill Walsh was viewed as a strong advocate for African-American head coaches in the NFL and NCAA. Thus, the impact of Walsh also changed the NFL into an equal opportunity for African-American coaches. Along with Ray Rhodes and Dennis Green, Tyrone Willingham became the head coach at Stanford, then later Notre Dame and Washington. One of Mike Shanahan's assistants, Karl Dorrell, went on to be the head coach at UCLA. Walsh directly helped propel Dennis Green into the NFL head coaching ranks by offering to take on the head coaching job at Stanford.
Later years
After leaving the coaching ranks immediately following his team's victory in Super Bowl XXIII, Walsh went to work as a broadcaster for NBC, teaming with Dick Enberg to form the lead broadcasting team, replacing Merlin Olsen.
During his time with NBC, rumors began to surface that Walsh would coach again in the NFL. There were at least two known instances.
First, according to a February 2015 article by Mike Florio of NBC Sports, after a 5–11 season in 1989, the Patriots fired Raymond Berry and unsuccessfully attempted to lure Walsh to Foxborough to become head coach and general manager. When that failed, New England promoted defensive coordinator Rod Rust; the team split its first two games and then lost 14 straight in 1990.
Second, late in the 1990 season, Walsh was rumored to become Tampa Bay's next head coach and general manager after the team fired Ray Perkins and promoted Richard Williamson on an interim basis. Part of the speculation was fueled by the fact that Walsh's contract with NBC, which ran for 1989 and 1990, would soon be up for renewal, to say nothing of the pressure Hugh Culverhouse faced to increase fan support and to fill the seats at Tampa Stadium. However, less than a week after Super Bowl XXV, Walsh not only declined Tampa Bay's offer, but he and NBC agreed on a contract extension. Walsh would continue in his role with NBC for 1991. Meanwhile, after unsuccessfully courting then-recently fired Eagles coach Buddy Ryan or Giants then-defensive coordinator Bill Belichick to man the sidelines for Tampa Bay in 1991, the Bucs stuck with Williamson. Under Williamson's leadership, Tampa Bay won only three games in 1991.
On January 15, 1992, Walsh agreed to return to Stanford to serve as their head coach with a five year contract with an annual salary of $350,000 to replace Dennis Green; he immediately named Terry Shea as offensive coordinator. That year, he led the Cardinal to a 10–3 record and a Pacific-10 Conference co-championship; it was the first conference championship for the program since 1971. Stanford finished the season with a victory over Penn State in the Blockbuster Bowl on January 1, 1993, and a #9 ranking in the final AP Poll. In November 1994, after consecutive losing seasons, Walsh left Stanford and retired from coaching.
In 1996, Walsh returned to the 49ers as an administrative aide. Walsh was the vice president and general manager for the 49ers from 1999 to 2001 and was a special consultant to the team for three years afterwards.
In 2004, Walsh was appointed as special assistant to the athletic director at Stanford. In 2005, after then-athletic director Ted Leland stepped down, Walsh was named interim athletic director. He also acted as a consultant for his alma mater San Jose State University in their search for an athletic director and Head Football Coach in 2005.
Walsh was also the author of three books, a motivational speaker, and taught classes at the Stanford Graduate School of Business.
Walsh was a board member for the Lott IMPACT Trophy, which is named after Pro Football Hall of Fame defensive back Ronnie Lott, and is awarded annually to college football's Defensive IMPACT Player of the Year. Walsh served as a keynote speaker at the award's banquet.
Awards and honors
*1989 – Golden Plate Award of the American Academy of Achievement
*1993 – Pro Football Hall of Fame
*1998 – San Jose State Hall of Fame and the SJSU Tower Award, the highest award given by SJSUPersonal life
Bill married his college sweetheart Geri, and had 3 children; Steve, Craig and Elizabeth.
Death
Bill Walsh died of leukemia on July 30, 2007, at his home in Woodside, California. Additionally, the regular San Jose State versus Stanford football game was renamed the "Bill Walsh Legacy Game". Super Bowl XLII was also dedicated to Walsh's memory; at the end of the player introduction ceremonies, his son, Craig, accompanied by Ronnie Lott, Jerry Rice and Steve Young, performed the ceremonial coin toss with New York Giants captain Michael Strahan, playing his final career NFL game, calling the toss on behalf of his Giants co-captains and the New England Patriots' captains.Head coaching recordCollege
NFL{| class"wikitable" style="font-size: 95%; text-align:center;"
|-
! rowspan"2"|Team !! rowspan"2"|Year !! colspan"5"|Regular Season !! colspan"4"|Post Season
|-
!Won!!Lost!!Ties!!Win %!!Finish!! Won !! Lost !! Win % !! Result
|-
!SF||1979
||2||14||0||.125|||| — || — || — || —
|-
!SF||1980
||6||10||0||.375||3rd in NFC West|| — || — || — || —
|- ! style="background:#FDE910;"
!SF||1981
||13||3||0||.812||1st in NFC West|| 3 || 0 || 1.000 ||
|-
!SF||1982
||3||6||0||.333||11th in NFC|| — || — || — || —
|-! style="background:#fdd;"
!SF||1983
||10||6||0||.625||1st in NFC West|| 1 || 1 || .500 ||
|- ! style="background:#FDE910;"
!SF||1984
||15||1||0||.938||1st in NFC West|| 3 || 0 || 1.000 ||
|-! style="background:#fdd;"
!SF||1985
||10||6||0||.625|||| 0 || 1 || .000 ||
|-! style="background:#fdd;"
!SF||1986
||10||5||1||.656||1st in NFC West|| 0 || 1 || .000 ||
|-! style="background:#fdd;"
!SF||1987
||13||2||0||.867||1st in NFC West|| 0 || 1 || .000 ||
|- ! style="background:#FDE910;"
!SF||1988
||10||6||0||.625||1st in NFC West|| 3 || 0 || 1.000 ||
|-
! colspan="2"|SF Total||92||59||1||.609|||| 10 || 4 || .714 ||
|-
! colspan"2"|Total||92||59||1||.609|||| 10 || 4 || .714 ||
|}
Books
* Bill Walsh and Glenn Dickey, Building a Champion: On Football and the Making of the 49ers. St Martin's Press, 1990. ().
* Bill Walsh, Brian Billick and James A. Peterson, Finding the Winning Edge. Sports Publishing, 1998. ().
* Bill Walsh with Steve Jamison and Craig Walsh, The Score Takes Care of Itself: My Philosophy of Leadership. Penguin Group Publishing, 2009 ().
See also
* Bill Walsh College Football, a 1993 video game
* ''Bill Walsh College Football '95, a 1994 video game
References
External links
*
}}
Category:1931 births
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Category:Hayward High School (California) alumni | https://en.wikipedia.org/wiki/Bill_Walsh | 2025-04-05T18:26:42.861611 |
4168 | Utility knife | thumb|right|250px|Finnish outdoor utility knife, puukko
thumb|right|Retractable blade knife with replaceable utility blade
A utility knife is any type of knife used for general manual work purposes. Such knives were originally fixed-blade knives with durable cutting edges suitable for rough work such as cutting cordage, cutting/scraping hides, butchering animals, cleaning fish scales, reshaping timber, and other tasks. Craft knives are small utility knives used as precision-oriented tools for finer, more delicate tasks such as carving and papercutting.
Today, the term "utility knife" also includes small folding-, retractable- and/or replaceable-blade knives suited for use in the general workplace or in the construction industry. The latter type is sometimes generically called a Stanley knife, after a prominent brand designed by the American tool manufacturing company Stanley Black & Decker.
There is also a utility knife for kitchen use, which is sized between a chef's knife and paring knife.
History
The fixed-blade utility knife was developed some 500,000 years ago, when human ancestors began to make stone knives. This name is a generic trademark named after Stanley Works, a manufacturer of such knives. In Israel and Switzerland, these knives are known as Japanese knives. In Brazil they are known as estiletes or cortadores Olfa (the latter, being another genericised trademark). In Portugal, Panama and Canada they are also known as X-Acto (yet another genericised trademark ). In India, Russia, the Philippines, France, Iraq, Italy, Egypt, and Germany, they are simply called cutter. In the Flemish region of Belgium it is called cuttermes(je) (cutter knife). In general Spanish, they are known as cortaplumas (penknife, when it comes to folding blades); in Spain, Mexico, and Costa Rica, they are colloquially known as cutters; in Argentina and Uruguay the segmented fixed-blade knives are known as "Trinchetas". In Turkey, they are known as maket bıçağı (which literally translates as model knife).
Other names for the tool are box cutter or boxcutter, blade knife, carpet knife, pen knife, stationery knife, sheetrock knife, or drywall knife.
Design
Utility knives may use fixed, folding, or retractable or replaceable blades, and come in a wide variety of lengths and styles suited to the particular set of tasks they are designed to perform. Thus, an outdoors utility knife suited for camping or hunting might use a broad fixed blade, while a utility knife designed for the construction industry might feature a replaceable utility blade for cutting packaging, cutting shingles, marking cut lines, or scraping paint.
Fixed blade utility knife
thumb|right|Fixed-blade X-Acto knife for handicrafts and model making
Large fixed-blade utility knives are most often employed in an outdoors context, such as fishing, camping, or hunting. Outdoor utility knives typically feature sturdy blades from in length, with edge geometry designed to resist chipping and breakage.
The term "utility knife" may also refer to small fixed-blade knives used for crafts, model-making and other artisanal projects. These small knives feature light-duty blades best suited for cutting thin, lightweight materials. The small, thin blade and specialized handle permit cuts requiring a high degree of precision and control.
Retractable utility knife
Construction utility knives, typically made from die-cast metal or robust molded plastic, have retractable and replaceable blades. The user of the knife can adjust the distance that the blade extends from the handle. For example, cutting the tape that seals a package without damaging the contents requires the blade to be extended slightly, while cutting the cardboard box requires the blade to be extended further forward.
A utility blade that has become dull can be reversed or replaced with a new one. Spare or used utility blades can be stored in the handle of some utility knife models and can be accessed by removing a bolt and opening the handle. There are also models of utility knives equipped with a quick-change feature that allows blades to be replaced without additional tools. Retractable utility knives are commonly used in construction, crafting, utility and warehouse work.
Utility knife blades
It is the material to be cut that determines which type of utility blade is required to be installed in the utility knife. In standard knives can be installed different forms of blades, varying and expanding the functionality of the knife. So the standard and universal option for craft and construction work is considered a trapezoidal blade, which is suitable for drywall, cardboard, cutting flooring covering materials, and more. There are also specialized blades for cutting roofing felt, linoleum, carpeting, foam, insulation and other building materials.
Standard blade types include:
Trapezoidal blade: the sturdy blade is sharpened on both sides and has 2 pointed and sharp tips, so it can be turned over and reused. The most common replacement blade, suitable for universal use.
Hook blade: a trapezoid-shaped blade that has hooks instead of pointed tips. Hook utility blades are suitable for cutting with a pulling motion such materials as roofing felt, linoleum, carpeting.
Concave blade: similar to a hook blade, but has a more elongated hook on only one side. Suitable for cutting out details and forming shapes.
Snap-off utility knife
Another type of utility knife is a snap-off utility knife that contains a long, segmented blade that slides out from it. As the endmost edge becomes dull, it can be broken off the remaining blade, exposing the next section, which is sharp and ready for use. The snapping is best accomplished with a blade snapper that is often built-in, or a pair of pliers, and the break occurs at the score lines, where the metal is thinnest. When all of the individual segments are used, the knife may be thrown away, or, more often, refilled with a replacement blade.
This design was introduced by Japanese manufacturer OLFA in 1956 as the world's first snap-off blade and was inspired from analyzing the sharp cutting edge produced when glass is broken and how pieces of a chocolate bar break into segments. The sharp cutting edge on these knives is not on the edge where the blade is snapped off; rather one long edge of the whole blade is sharpened, and there are scored diagonal breakoff lines at intervals down the blade. Thus each snapped-off piece is roughly a parallelogram, with each long edge being a breaking edge, and one or both of the short ends being a sharpened edge.
Box cutter knife
Another utility knife often used for cutting open boxes consists of a simple sleeve around a rectangular handle into which single-edge utility blades can be inserted. The sleeve slides up and down on the handle, holding the blade in place during use and covering the blade when not in use. The blade holder may either retract or fold into the handle, much like a folding-blade pocketknife. The blade holder is designed to expose just enough edge to cut through one layer of corrugated fibreboard, to minimize chances of damaging contents of cardboard boxes.
File:Safety cutter and simple box cutter blades extended.jpg|A modern safety cutter at top, with blunted tip blade and cutting guide/tape hook. At bottom, an older style simple plastic box cutter using standard straight edged blades.
File:Cutter olfa.jpg|OLFA segmented blade or "snap-off blade" utility knife
File:BoxCutter.jpg|Inexpensive stamped steel and aluminum box cutter with disposable blade
Use as weapon
Most utility knives are not well suited to use as offensive weapons, with the exception of some outdoor-type utility knives employing longer blades. However, even small blade type utility knives may sometimes find use as slashing weapons, particularly when used opportunistically due to their ubiquity. The 9/11 Commission report stated passengers in cell phone calls reported knives or "box-cutters" were used as weapons (also Mace or a bomb) in hijacking airplanes in the September 11, 2001 terrorist attacks against the United States, though the exact design of the knives used is unknown. Two of the hijackers were known to have purchased Leatherman knives, which feature a slip-joint blade, which were not prohibited on U.S. flights at the time. Those knives were not found in the possessions the two hijackers left behind. Similar cutters, including paper cutters, have also been known to be used as a lethal weapon.
Small work-type utility knives have also been used to commit robbery and other crimes. In June 2004, a Japanese student was slashed to death with a segmented-type utility knife.
In the United Kingdom, the law was changed (effective 1 October 2007) to raise the age limit for purchasing knives, including utility knives, from 16 to 18, and to make it illegal to carry a utility knife in public without a good reason.
See also
Automatic box-opening technology
Everyday carry
References
External links
Category:Knives
Category:Office equipment
Category:Woodworking hand tools | https://en.wikipedia.org/wiki/Utility_knife | 2025-04-05T18:26:42.915438 |
4169 | Bronze | Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (including aluminium, manganese, nickel, or zinc) and sometimes non-metals (such as phosphorus) or metalloids (such as arsenic or silicon). These additions produce a range of alloys some of which are harder than copper alone or have other useful properties, such as strength, ductility, or machinability.
The archaeological period during which bronze was the hardest metal in widespread use is known as the Bronze Age. The beginning of the Bronze Age in western Eurasia and India is conventionally dated to the mid-4th millennium BCE (~3500 BCE), and to the early 2nd millennium BCE in China; elsewhere it gradually spread across regions. The Bronze Age was followed by the Iron Age, which started about 1300 BCE and reaching most of Eurasia by about 500 BCE, although bronze continued to be much more widely used than it is in modern times.
Because historical artworks were often made of bronzes and brasses (alloys of copper and zinc) of different metallic compositions, modern museum and scholarly descriptions of older artworks increasingly use the generalized term "copper alloy" instead of the names of individual alloys. This is done (at least in part) to prevent database searches from failing merely because of errors or disagreements in the naming of historic copper alloys.Etymology(), the heaviest Chinese ritual bronze ever found; 1300–1046 BC; National Museum of China (Beijing). This ding's name is based on the inscription in the bronze interior wall, which reads , meaning 'Queen Mother Wu']]
The word bronze (1730–1740) is borrowed from Middle French (1511), itself borrowed from Italian (13th century, transcribed in Medieval Latin as ) from either:
* , back-formation from Byzantine Greek (, 11th century), perhaps from (, ), reputed for its bronze; or originally:
* in its earliest form from Old Persian , (, , modern ) and () , from which also came Georgian (), Turkish from "bir" (one) "birinç" (primary), and Armenian (), also meaning .
History
found in modern Germany. This was the most common tool of the period, and also seems to have been used as a store of value.]]
The discovery of bronze enabled people to create metal objects that were harder and more durable than had previously been possible. Bronze tools, weapons, armor, and building materials such as decorative tiles were harder and more durable than their stone and copper ("Chalcolithic") predecessors. Initially, bronze was made out of copper and arsenic or from naturally or artificially mixed ores of those metals, forming arsenic bronze.
The earliest known arsenic-copper-alloy artifacts come from a Yahya Culture (Period V 3800-3400 BCE) site, at Tal-i-Iblis on the Iranian plateau, and were smelted from native arsenical copper and copper-arsenides, such as algodonite and domeykite.
The earliest tin-copper-alloy artifact has been dated to , in a Vinča culture site in Pločnik (Serbia), and believed to have been smelted from a natural tin-copper ore, stannite.
Tin bronze was superior to arsenic bronze in that the alloying process could be more easily controlled, and the resulting alloy was stronger and easier to cast. Also, unlike those of arsenic, metallic tin and the fumes from tin refining are not toxic.
Tin became the major non-copper ingredient of bronze in the late 3rd millennium BCE. Ores of copper and the far rarer tin are not often found together (exceptions include Cornwall in the United Kingdom, one ancient site in Thailand and one in Iran), so serious bronze work has always involved trade with other regions. Tin sources and trade in ancient times had a major influence on the development of cultures. In Europe, a major source of tin was the British deposits of ore in Cornwall, which were traded as far as Phoenicia in the eastern Mediterranean. In many parts of the world, large hoards of bronze artifacts are found, suggesting that bronze also represented a store of value and an indicator of social status. In Europe, large hoards of bronze tools, typically socketed axes (illustrated above), are found, which mostly show no signs of wear. With Chinese ritual bronzes, which are documented in the inscriptions they carry and from other sources, the case is clear. These were made in enormous quantities for elite burials, and also used by the living for ritual offerings.Transition to ironThough bronze, whose Vickers hardness is 60–258, is generally harder than wrought iron, with a hardness of 30–80, the Bronze Age gave way to the Iron Age after a serious disruption of the tin trade: the population migrations of around 1200–1100 BCE reduced the shipment of tin around the Mediterranean and from Britain, limiting supplies and raising prices. As the art of working in iron improved, iron became cheaper and improved in quality. As later cultures advanced from hand-wrought iron to machine-forged iron (typically made with trip hammers powered by water), blacksmiths also learned how to make steel, which is stronger and harder than bronze and holds a sharper edge longer. Bronze was still used during the Iron Age and has continued in use for many purposes to the modern day.Composition
structure.]]
There are many different bronze alloys, but typically modern bronze is about 88% copper and 12% tin. Alpha bronze consists of the alpha solid solution of tin in copper. Alpha bronze alloys of 4–5% tin are used to make coins, springs, turbines and blades. Historical "bronzes" are highly variable in composition, as most metalworkers probably used whatever scrap was on hand; the metal of the 12th-century English Gloucester Candlestick is bronze containing a mixture of copper, zinc, tin, lead, nickel, iron, antimony, arsenic and an unusually large amount of silver – between 22.5% in the base and 5.76% in the pan below the candle. The proportions of this mixture suggest that the candlestick was made from a hoard of old coins. The 13th-century Benin Bronzes are in fact brass, and the 12th-century Romanesque Baptismal font at St Bartholomew's Church, Liège is sometimes described as bronze and sometimes as brass.
During the Bronze Age, two forms of bronze were commonly used: "classic bronze", about 10% tin, was used in casting; "mild bronze", about 6% tin, was hammered from ingots to make sheets. Bladed weapons were primarily cast from classic bronze while helmets and armor were hammered from mild bronze.
Modern commercial bronze (90% copper and 10% zinc) and architectural bronze (57% copper, 3% lead, 40% zinc) are more properly regarded as brass alloys because they contain zinc as the main alloying ingredient. They are commonly used in architectural applications. Plastic bronze contains a significant quantity of lead, which makes for improved plasticity, and may have been used by the ancient Greeks in ship construction. has a composition of Si: 2.80–3.80%, Mn: 0.50–1.30%, Fe: 0.80% max., Zn: 1.50% max., Pb: 0.05% max., Cu: balance. Other bronze alloys include aluminium bronze, phosphor bronze, manganese bronze, bell metal, arsenical bronze, speculum metal, bismuth bronze, and cymbal alloys.
Properties
Copper-based alloys have lower melting points than steel or iron and are more readily produced from their constituent metals. They are generally about 10 percent denser than steel, although alloys using aluminum or silicon may be slightly less dense. Bronze conducts heat and electricity better than most steels. Copper-base alloys are generally more costly than steels but less so than nickel-base alloys.
Bronzes are typically ductile alloys and are considerably less brittle than cast iron. Copper and its alloys have a huge variety of uses that reflect their versatile physical, mechanical, and chemical properties. Some common examples are the high electrical conductivity of pure copper, the low-friction properties of bearing bronze (bronze that has a high lead content— 6–8%), the resonant qualities of bell bronze (20% tin, 80% copper), and the resistance to corrosion by seawater of several bronze alloys.
The melting point of bronze is about but varies depending on the ratio of the alloy components. Bronze is usually nonmagnetic, but certain alloys containing iron or nickel may have magnetic properties. Bronze typically oxidizes only superficially; once a copper oxide (eventually becoming copper carbonate) layer is formed, the underlying metal is protected from further corrosion. This can be seen on statues from the Hellenistic period. If copper chlorides are formed, a corrosion-mode called "bronze disease" will eventually destroy it completely.
Uses
]]
Bronze, or bronze-like alloys and mixtures, were used for coins over a longer period. Bronze was especially suitable for use in boat and ship fittings prior to the wide employment of stainless steel owing to its combination of toughness and resistance to salt water corrosion. Bronze is still commonly used in ship propellers and submerged bearings. In the 20th century, silicon was introduced as the primary alloying element, creating an alloy with wide application in industry and the major form used in contemporary statuary. Sculptors may prefer silicon bronze because of the ready availability of silicon bronze brazing rod, which allows color-matched repair of defects in castings. Aluminum is also used for the structural metal aluminum bronze. Bronze parts are tough and typically used for bearings, clips, electrical connectors and springs.
Bronze also has low friction against dissimilar metals, making it important for cannons prior to modern tolerancing, where iron cannonballs would otherwise stick in the barrel. It is still widely used today for springs, bearings, bushings, automobile transmission pilot bearings, and similar fittings, and is particularly common in the bearings of small electric motors. Phosphor bronze is particularly suited to precision-grade bearings and springs. It is also used in guitar and piano strings. Unlike steel, bronze struck against a hard surface will not generate sparks, so it (along with beryllium copper) is used to make hammers, mallets, wrenches and other durable tools to be used in explosive atmospheres or in the presence of flammable vapors. Bronze is used to make bronze wool for woodworking applications where steel wool would discolor oak. Phosphor bronze is used for ships' propellers, musical instruments, and electrical contacts. Bearings are often made of bronze for its friction properties. It can be impregnated with oil to make the proprietary Oilite and similar material for bearings. Aluminum bronze is hard and wear-resistant, and is used for bearings and machine tool ways. The Doehler Die Casting Co. of Toledo, Ohio were known for the production of Brastil, a high tensile corrosion resistant bronze alloy.Architectural bronze
viewed from across Park Avenue at 52nd Street]]
The Seagram Building on New York City's Park Avenue is the "iconic glass box sheathed in bronze, designed by Mies van der Rohe." The Seagram Building was the first time that an entire building was sheathed in bronze. The General Bronze Corporation fabricated 3,200,000 pounds (1,600 tons) of bronze at its plant in Garden City, New York. "Bronze was selected because of its color, both before and after aging, its corrosion resistance, and its extrusion properties. The Assyrian king Sennacherib (704–681 BCE) claims to have been the first to cast monumental bronze statues (of up to 30 tonnes) using two-part moulds instead of the lost-wax method.
Bronze statues were regarded as the highest form of sculpture in Ancient Greek art, though survivals are few, as bronze was a valuable material in short supply in the Late Antique and medieval periods. Many of the most famous Greek bronze sculptures are known through Roman copies in marble, which were more likely to survive. In India, bronze sculptures from the Kushana (Chausa hoard) and Gupta periods (Brahma from Mirpur-Khas, Akota Hoard, Sultanganj Buddha) and later periods (Hansi Hoard) have been found. Indian Hindu artisans from the period of the Chola empire in Tamil Nadu used bronze to create intricate statues via the lost-wax casting method with ornate detailing depicting the deities of Hinduism. The art form survives to this day, with many silpis, craftsmen, working in the areas of Swamimalai and Chennai.
In antiquity other cultures also produced works of high art using bronze. For example: in Africa, the bronze heads of the Kingdom of Benin; in Europe, Grecian bronzes typically of figures from Greek mythology; in east Asia, Chinese ritual bronzes of the Shang and Zhou dynasty—more often ceremonial vessels but including some figurine examples. Bronze continues into modern times as one of the materials of choice for monumental statuary.
<gallery widths"170px" heights"170px">
File:Dancing girl of Mohenjo-daro.jpg|The Dancing Girl, an Harappan artwork; 2400–1900 BCE; bronze; height: 10.8 cm; National Museum (New Delhi, India)
File:商青銅鼎-Ritual Tripod Cauldron (Ding) MET DP164965.jpg|Ritual tripod cauldron (ding); ; bronze: height with handles: 25.4 cm; Metropolitan Museum of Art (New York City)
Kushite Pharaoh MET DT8840.jpg|Ancient Egyptian statuette of a Kushite pharaoh; 713–664 BCE; bronze, precious-metal leaf; height: 7.6 cm, width: 3.2 cm, depth: 3.6 cm; Metropolitan Museum of Art
File:Bronze tripod base for a thymiaterion (incense burner) MET DP21045.jpg|Etruscan tripod base for a thymiaterion (incense burner); 475-450 BCE; bronze; height: 11 cm; Metropolitan Museum of Art
File:God of Cape Artemision 01.JPG|The Artemision Bronze; 460-450 BCE; bronze; height: 2.1 m; National Archaeological Museum (Athens)
File:Egypt, Greco-Roman Period, probably Ptolemaic Dynasty - Statuette of Isis and Horus - 1940.613 - Cleveland Museum of Art.tif|Ancient Egyptian statuette of Isis and Horus; 305–30 BCE; solid cast of bronze; 4.8 × 10.3 cm; Cleveland Museum of Art (Cleveland, Ohio, US)
Bronze statue of Eros sleeping MET DP123903.jpg|Ancient Greek statue of Eros sleeping; 3rd–2nd century BCE; bronze; 41.9 × 35.6 × 85.2 cm; Metropolitan Museum of Art
Buddha Offering Protection MET DP-15581-036.jpg|Gupta sculpture of Buddha offering protection; late 6th–early 7th century; copper alloy; height: 47 cm, width: 15.6 cm, diameter: 14.3 cm; from India (probably Bihar); Metropolitan Museum of Art
File:Krishna Rukmini Satyabhama Garuda.jpg|Krishna with his consorts Rukmini and Satyabhama and his mount Garuda, Tamil Nadu, India, late 11th–12th century
File:NatarajaMET.JPG|Bronze Chola Statue of Nataraja at the Metropolitan Museum of Art, New York City
File:Caldron MET cdi49-69-6s3.jpg|French or South Netherlandish Medieval caldron; 13th or 14th century; bronze and wrought iron; height: 37.5 cm, diameter: 34.3 cm; Metropolitan Museum of Art
File:Pair of firedogs (chenets) MET DP170900.jpg|Pair of French Rococo firedogs (chenets); ; gilt bronze; dimensions of the first: 52.7 x 48.3 x 26.7 cm, of the second: 45.1 x 49.1 x 24.8 cm; Metropolitan Museum of Art
File:Mantel clock (pendule de chiminée) MET DT6546.jpg|French Neoclassical mantel clock (pendule de cheminée); 1757–1760; gilded and patinated bronze, oak veneered with ebony, white enamel with black numerals, and other materials; 48.3 × 69.9 × 27.9 cm; Metropolitan Museum of Art
File:Pair of firedogs MET DT8904.jpg|Pair of French Chinoiserie firedogs; 1760–1770; gilt bronze; height (each): 41.9 cm; Metropolitan Museum of Art
File:Pair of vases MET DP170824.jpg|Pair of Chinese vases with French Rococo mounts; the vases: early 18th century, the mounts: 1760–70; hard-paste porcelain with gilt-bronze mounts; 32.4 x 16.5 x 12.4 cm; Metropolitan Museum of Art
File:Mantel clock ("Pendule Uranie") MET DP346441.jpg|French Neoclassical mantel clock ("Pendule Uranie"); 1764–1770; case: patinated bronze and gilded bronze, Dial: white enamel, movement: brass and steel; 71.1 × 52.1 × 26.7 cm; Metropolitan Museum of Art
File:Pair of mounted vases (vase à monter) MET DP102639.jpg|Pair of mounted vases (vase à monter); 1765–70; soft-paste porcelain and French gilt bronze; 28.9 x 17.1 cm; Metropolitan Museum of Art
File:Winter MET DP162240.jpg|Winter; by Jean-Antoine Houdon; 1787; bronze; 143.5 x 39.1 x 50.5 cm, height of the pedestal: 86.4 cm; Metropolitan Museum of Art
File:Statue at Rockefeller Centre.jpg|upright=1.2| Prometheus, Paul Manship's classic gilded bronze sculpture, 1934, Rockefeller Center, New York City
File:New York City, May 2014 - 033.JPG|Atlas by Lee Lawrie, bronze sculpture, 1937, Rockefeller Center, New York City
</gallery>
Lamps
Tiffany Glass Studios, made famous by Louis C. Tiffany commonly referred to his product as favrile glass or "Tiffany glass," and used bronze in their artisan work for his Tiffany lamps. table lamp with bronze]]Fountains and doorsby Gilbert Donnelly Sr. and his son John Donnelly Jr.]]The largest and most ornate bronze fountain known to be cast in the world was by the Roman Bronze Works and General Bronze Corporation in 1952. The material used for the fountain, known as statuary bronze, is a quaternary alloy made of copper, zinc, tin, and lead, and traditionally golden brown in color. This was made for the Andrew W. Mellon Memorial Fountain in Federal Triangle in Washington, DC. Another example of the massive, ornate design projects of bronze, and attributed to General Bronze/Roman Bronze Works were the massive bronze doors to the United States Supreme Court Building in Washington, DC.Mirrors
bronze mirror, 120-80 BCE, St Keverne, England]]
Before it became possible to produce glass with acceptably flat surfaces, bronze was a standard material for mirrors. Bronze was used for this purpose in many parts of the world, probably based on independent discoveries. Bronze mirrors survive from the Egyptian Middle Kingdom (2040–1750 BCE), and China from at least . In Europe, the Etruscans were making bronze mirrors in the sixth century BCE, and Greek and Roman mirrors followed the same pattern. Although other materials such as speculum metal had come into use, and Western glass mirrors had largely taken over, bronze mirrors were still being made in Japan and elsewhere in the eighteenth century, and are still made on a small scale in Kerala, India.
Musical instruments
, Spring and Autumn period (476–221 BCE)]]
s from the 16th to 18th centuries. Annealed bronze continues to be made in the Himalayas]]
Bronze is the preferred metal for bells in the form of a high tin bronze alloy known as bell metal, which is typically about 23% tin.
Nearly all professional cymbals are made from bronze, which gives a desirable balance of durability and timbre. Several types of bronze are used, commonly B20 bronze, which is roughly 20% tin, 80% copper, with traces of silver, or the tougher B8 bronze made from 8% tin and 92% copper. As the tin content in a bell or cymbal rises, the timbre drops.
Bronze is also used for the windings of steel and nylon strings of various stringed instruments such as the double bass, piano, harpsichord, and guitar. Bronze strings are commonly reserved on pianoforte for the lower pitch tones, as they possess a superior sustain quality to that of high-tensile steel.
Bronzes of various metallurgical properties are widely used in struck idiophones around the world, notably bells, singing bowls, gongs, cymbals, and other idiophones from Asia. Examples include Tibetan singing bowls, temple bells of many sizes and shapes, Javanese gamelan, and other bronze musical instruments. The earliest bronze archeological finds in Indonesia date from 1–2 BCE, including flat plates probably suspended and struck by a wooden or bone mallet. Ancient bronze drums from Thailand and Vietnam date back 2,000 years. Bronze bells from Thailand and Cambodia date back to 3600 BCE.
Some companies are now making saxophones from phosphor bronze (3.5 to 10% tin and up to 1% phosphorus content). Bell bronze/B20 is used to make the tone rings of many professional model banjos. The tone ring is a heavy (usually ) folded or arched metal ring attached to a thick wood rim, over which a skin, or most often, a plastic membrane (or head) is stretched – it is the bell bronze that gives the banjo a crisp powerful lower register and clear bell-like treble register.Coins and medals
during his visit to Florence, by Pisanello (1438). The legend reads, in Greek: "John the Palaiologos, basileus and autokrator of the Romans".]]
Bronze has also been used in coins; most "copper" coins are actually bronze, with about 4 percent tin and 1 percent zinc.
As with coins, bronze has been used in the manufacture of various types of medals for centuries, and "bronze medals" are known in contemporary times for being awarded for third place in sporting competitions and other events. The term is now often used for third place even when no actual bronze medal is awarded. The usage in part arose from the trio of gold, silver and bronze to represent the first three Ages of Man in Greek mythology: the Golden Age, when men lived among the gods; the Silver age, where youth lasted a hundred years; and the Bronze Age, the era of heroes. It was first adopted for a sports event at the 1904 Summer Olympics. At the 1896 event, silver was awarded to winners and bronze to runners-up, while at 1900 other prizes were given rather than medals.
Bronze is the normal material for the related form of the plaquette, normally a rectangular work of art with a scene in relief, for a collectors' market.
Bronze is also associated with eighth wedding anniversaries.
Biblical references
There are over 125 references to bronze ('nehoshet'), which appears to be the Hebrew word used for copper and any of its alloys. However, the Old Testament era Hebrews are not thought to have had the capability to manufacture zinc (needed to make brass) and so it is likely that 'nehoshet' refers to copper and its alloys with tin, now called bronze. In the King James Version, there is no use of the word 'bronze' and 'nehoshet' was translated as 'brass'. Modern translations use 'bronze'. Bronze (nehoshet) was used widely in the Tabernacle for items such as the bronze altar (Exodus Ch.27), bronze laver (Exodus Ch.30), utensils, and mirror (Exodus Ch.38). It was mentioned in the account of Moses holding up a bronze snake on a pole in Numbers Ch.21. In First Kings, it is mentioned that Hiram was very skilled in working with bronze, and he made many furnishings for Solomon's Temple including pillars, capitals, stands, wheels, bowls, and plates, some of which were highly decorative (see I Kings 7:13-47). Bronze was also widely used as battle armor and helmet, as in the battle of David and Goliath in I Samuel 17:5-6;38 (also see II Chron. 12:10).
See also
References
External links
* [https://web.archive.org/web/20061216180940/http://www.msm.cam.ac.uk/phase-trans/2005/bell/bell.html Bronze bells] (archived 16 December 2006)
* [https://web.archive.org/web/20090523044615/http://wildlifeart.org/Foundry/index2.html "Lost Wax, Found Bronze": lost-wax casting explained] (archived 23 May 2009)
*
* [https://web.archive.org/web/20160416001549/http://web.comhem.se/vikingbronze/ Viking Bronze – Ancient and Early Medieval bronze casting] (archived 16 April 2016)
Category:Copper alloys
Category:Tin alloys
Category:Coinage metals and alloys | https://en.wikipedia.org/wiki/Bronze | 2025-04-05T18:26:42.978246 |
4170 | Benelux | |}}
| image_symbol = Benelux Logo.svg
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| established_date2 1 January 1948
| population_estimate_year 2024
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| population_density_sq_mi | GDP_nominal $2.059 trillion
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The Benelux Union (; ; ; ) or Benelux is a politico-economic union, alliance and formal international intergovernmental cooperation of three neighbouring states in Western Europe: Belgium, the Netherlands, and Luxembourg. The name is a portmanteau formed from joining the first few letters of each country's name and was first used to name the customs agreement that initiated the union (signed in 1944). It is now used more generally to refer to the geographic, economic, and cultural grouping of the three countries.
The Benelux is an economically dynamic and densely populated region, with 5.6% of the European population (29.55 million residents) and 7.9% of the joint EU GDP (€36,000/resident) on 1.7% of the whole surface of the EU. In 2015, 37% of the total number of EU cross-border workers worked in the Benelux; 35,000 Belgian citizens work in Luxembourg, while 37,000 Belgian citizens cross the border to work in the Netherlands each day. In addition, 12,000 Dutch and close to a thousand Luxembourg residents work in Belgium.
The main institutions of the Union are the Committee of Ministers, the Council of the Union, the General Secretariat, the Interparliamentary Consultative Council and the Benelux Court of Justice while the Benelux Office for Intellectual Property covers the same land but is not part of the Benelux Union.
The Benelux General Secretariat is located in Brussels. It is the central platform of the Benelux Union cooperation. It handles the secretariat of the Committee of Ministers, the Council of Benelux Union and the sundry committees and working parties. The General Secretariat provides day-to-day support for the Benelux cooperation on the substantive, procedural, diplomatic and logistical levels. The Secretary-General is Frans Weekers from the Netherlands and there are two deputies: Deputy Secretary-General Michel-Etienne Tilemans from Belgium and Deputy Secretary-General Jean-Claude Meyer from Luxembourg.
The presidency of the Benelux is held in turn by the three countries for a period of one year. Luxembourg holds the presidency for 2025.
About 80 percent of the Benelux population speaks Dutch, about 20 percent speaks French and one percent Luxembourgish as their native language. A small minority under one percent are native German speakers.
History
, 1949]]
In 1944, exiled representatives of the three countries signed the London Customs Convention, the treaty that established the Benelux Customs Union. Ratified in 1947, the treaty was in force from 1948 until it was superseded by the Benelux Economic Union. The initial form of economic cooperation expanded steadily over time, leading to the signing of the treaty establishing the Benelux Economic Union (Benelux Economische Unie, Union Économique Benelux) on 3 February 1958 in The Hague, which came into force on 1 November 1960. Initially, the purpose of cooperation among the three partners was to put an end to customs barriers at their borders and ensure free movement of persons, capital, services, and goods between the three countries. This treaty was the first example of international economic integration in Europe since the Second World War.
The three countries therefore foreshadowed and provided the model for future European integration, such as the European Coal and Steel Community, the European Economic Community (EEC), and the European Community–European Union (EC–EU). The three partners also launched the Schengen process, which came into operation in 1985. Benelux cooperation has been constantly adapted and now goes much further than mere economic cooperation, extending to new and topical policy areas connected with security, sustainable development, and the economy.
Gaston Eyskens, Dutch Prime Minister Piet de Jong, and Luxembourgish Prime Minister Pierre Werner during a Benelux conference in The Hague, Netherlands, on 28 April 1968]]
Ruud Lubbers, Luxembourgish Prime Minister Pierre Werner, and Belgian Prime Minister Wilfried Martens at the Ministry of General Affairs, on 10 November 1982]]
Mark Rutte, Luxembourgish Prime Minister Jean-Claude Juncker, and Belgian Prime Minister Yves Leterme in The Hague, Netherlands, on 24 May 2011]]
In 1965, the treaty establishing a Benelux Court of Justice was signed. It entered into force in 1974. The court, composed of judges from the highest courts of the three states, has to guarantee the uniform interpretation of common legal rules. This international judicial institution is located in Luxembourg. Renewal of the agreement
The 1958 Treaty between the Benelux countries establishing the Benelux Economic Union was limited to a period of 50 years. During the following years, and even more so after the creation of the European Union, the Benelux cooperation focused on developing other fields of activity within a constantly changing international context.
At the end of the 50 years, the governments of the three Benelux countries decided to renew the agreement, taking into account the new aspects of the Benelux-cooperation – such as security – and the new federal government structure of Belgium. The original establishing treaty, set to expire in 2010, was replaced by a new legal framework (called the Treaty revising the Treaty establishing the Benelux Economic Union), which was signed on 17 June 2008.
The new treaty has no set time limit and the name of the Benelux Economic Union changed to Benelux Union to reflect the broad scope on the union. The main objectives of the treaty are the continuation and enlargement of the cooperation between the three member states within a larger European context. The renewed treaty explicitly foresees the possibility that the Benelux countries will cooperate with other European member states or with regional cooperation structures. The new Benelux cooperation focuses on three main topics: internal market and economic union, sustainability, justice and internal affairs. The number of structures in the renewed Treaty has been reduced and thus simplified. Activities since 2008
Benelux seeks region-to-region cooperation, be it with France and Germany (North Rhine-Westphalia) or beyond with the Baltic States, the Nordic Council, the Visegrad countries, or even further. In 2018, a renewed political declaration was adopted between Benelux and North Rhine-Westphalia to give cooperation a further impetus.
The Benelux is particularly active in the field of intellectual property. The three countries established a Benelux Trademarks Office and a Benelux Designs Office, both situated in The Hague. In 2005, they concluded a treaty establishing the Benelux Office for Intellectual Property, which replaced both offices upon its entry into force on 1 September 2006. This organisation is the official body for the registration of trademarks and designs in the Benelux. In addition, it offers the possibility to formally record the existence of ideas, concepts, designs, prototypes and the like.
Some examples of recent Benelux initiatives include: automatic level recognition of diplomas and degrees within the Benelux for bachelor's and master's programs in 2015, and for all other degrees in 2018; common road inspections in 2014; and a Benelux pilot with digital consignment notes (e-CMR) in 2017; a new Benelux Treaty on Police Cooperation in 2018, providing for direct access to each other's police databases and population registers within the limits of national legislation, and allowing some police forces to cross borders in some situations. The Benelux is also committed to working together on adaptation to climate change. A joint political declaration in July 2020 called on the European Commission to prioritise cycling in European climate policy and Sustainable Transport strategies, to co-finance the construction of cycling infrastructure, and to provide funds to stimulate cycling policy.
On 5 June 2018, the Benelux Treaty celebrated its 60 years of existence. In 2018, a Benelux Youth Parliament was created.
In addition to cooperation based on a Treaty, there is also political cooperation in the Benelux context, including summits of the Benelux government leaders. In 2019 a Benelux summit was held in Luxembourg. In 2020, a Benelux summit was held – online, due to the COVID-19 pandemic – under Dutch Presidency on 7 October between the prime ministers.
As of 1 January 2017, a new arrangement for NATO Air Policing started for the airspace of Belgium, the Netherlands and Luxemburg (Benelux). The Belgian Air Component and the Royal Netherlands Air Force will take four-month turns to ensure that Quick Reaction Alert (QRA) fighter jets are available at all times to be launched under NATO control.
Cooperation with other geopolitical regions
The Benelux countries also work together in the so-called Pentalateral Energy Forum, a regional cooperation group formed of five members—the Benelux states, France, Germany, Austria, and Switzerland. Formed on 6 June 2007, the ministers for energy from the various countries represent a total of 200 million residents and 40% of the European electricity network.
In 2017 the members of the Benelux, the Baltic Assembly, three members of the Nordic Council (Sweden, Denmark and Finland), and all the other countries EU member states, sought to increase cooperation in the Digital Single Market, as well as discussing social matters, the Economic and Monetary Union of the European Union, immigration and defence cooperation. Foreign relations in the wake of Russia's annexation of Crimea and the 2017 Turkish constitutional referendum were also on the agenda.
Since 2008 the Benelux Union works together with the German Land (state) North Rhine-Westphalia.
In 2018 Benelux Union signed a declaration with France to strengthen cross-border cooperation. Politics Benelux institutions
Under the 2008 treaty there are five Benelux institutions: the Benelux Committee of Ministers, the Benelux Council, the Benelux Parliament, the Benelux Court of Justice, the Benelux Secretariat General. Beside these five institutions, the Benelux Organisation for Intellectual Property is also an independent organisation.
Benelux Committee of Ministers:
The Committee of Ministers is the supreme decision-making body of the Benelux. It includes at least one representative at ministerial level from the three countries. Its composition varies according to its agenda. The ministers determine the orientations and priorities of Benelux cooperation. The presidency of the Committee rotates between the three countries on an annual basis.
Benelux Council:
The council is composed of senior officials from the relevant ministries. Its composition varies according to its agenda. The council's main task is to prepare the dossiers for the ministers.
Benelux InterParliamentary Consultative Council:
The Benelux Parliament (officially referred to as an "Interparliamentary Consultative Council") was created in 1955. This parliamentary assembly is composed of 49 members from the respective national parliaments (21 members of the Dutch parliament, 21 members of the Belgian national and regional parliaments, and 7 members of the Luxembourg parliament). Its members inform and advise their respective governments on all Benelux matters. On 20 January 2015, the governments of the three countries, including, as far as Belgium is concerned, the community and regional governments, signed in Brussels the Treaty of the Benelux Interparliamentary Assembly. This treaty entered into force on 1 August 2019. This superseded the 1955 Convention on the Consultative Interparliamentary Council for the Benelux. The official name has been largely obsolete in daily practice for a number of years: both internally in the Benelux and in external references, the name Benelux Parliament has been used de facto for a number of years now.
Benelux Court of Justice:
The Benelux Court of Justice is an international court. Its mission is to promote uniformity in the application of Benelux legislation. When faced with difficulty interpreting a common Benelux legal rule, national courts must seek an interpretive ruling from the Benelux Court, which subsequently renders a binding decision. The members of the Court are appointed from among the judges of the 'Cour de cassation' of Belgium, the 'Hoge Raad of the Netherlands' and the 'Cour de cassation' of Luxembourg.
Benelux General Secretariat:
The General Secretariat, which is based in Brussels, forms the cooperation platform of the Benelux Union. It acts as the secretariat of the Committee of Ministers, the council and various commissions and working groups. The General Secretariat has years of expertise in the area of Benelux cooperation and is familiar with the policy agreements and differences between the three countries. Building on what already been achieved, the General Secretariat puts its knowledge, network and experience at the service of partners and stakeholders who endorse its mission. It initiates, supports and monitors cooperation results in the areas of economy, sustainability and security.
Benelux works together on the basis of an annual plan embedded in a four-year joint work programme.
Benelux legal instruments
The Benelux Union involves intergovernmental cooperation.
The Treaty establishing the Benelux Union explicitly provides that the Benelux Committee of Ministers can resort to four legal instruments (art. 6, paragraph 2, under a), f), g) and h)):
1. Decisions
Decisions are legally binding regulations for implementing the Treaty establishing the Benelux Union or other Benelux treaties.
Their legally binding force concerns the Benelux states (and their sub-state entities), which have to implement them. However, they have no direct effect towards individual citizens or companies (notwithstanding any indirect protection of their rights based on such decisions as a source of international law). Only national provisions implementing a decision can directly create rights and obligations for citizens or companies.
2. Agreements
The Committee of Ministers can draw up agreements, which are then submitted to the Benelux states (and/or their sub-state entities) for signature and subsequent parliamentary ratification. These agreements can deal with any subject matter, also in policy areas that are not yet covered by cooperation in the framework of the Benelux Union.
These are in fact traditional treaties, with the same direct legally binding force towards both authorities and citizens or companies. The negotiations do however take place in the established context of the Benelux working groups and institutions, rather than on an ad hoc basis.
3. Recommendations
Recommendations are non-binding orientations, adopted at ministerial level, which underpin the functioning of the Benelux Union. These (policy) orientations may not be legally binding, but given their adoption at the highest political level and their legal basis vested directly in the Treaty, they do entail a strong moral obligation for any authority concerned in the Benelux countries.
4. Directives
Directives of the Committee of Ministers are mere inter-institutional instructions towards the Benelux Council and/or the Secretariat-General, for which they are binding. This instrument has so far only been used occasionally, basically in order to organize certain activities within a Benelux working group or to give them impetus.
All four instruments require the unanimous approval of the members of the Committee of Ministers (and, in the case of agreements, subsequent signature and ratification at national level).
Characteristics
Countries
{| class="wikitable"
|+ Benelux Countries Comparison
! Country
! scope="col" | Belgium
! scope="col" | Netherlands
! scope="col" | Luxembourg
|-
! scope="row" | Official name
|
|
|
|-
! scope="row" | Official languages
|
| Dutch (regional: English, Frisian, Papiamento/Papiamentu)
|
|-
! scope="row" | Population (2024)
| 11,763,650<!-- Belgium does not work with censuses and estimates but has an always up-to-date population register, with official data for 1 January of each year. Monthly updated statistics are available via http://www.ibz.rrn.fgov.be/fileadmin/user_upload/Registre/nl/statistieken_bevolking/stat_1_n.pdf --> || || 672,050
|-
! scope="row" | Area
| || ||
|-
! scope="row" | Population density
| 385/km² (998/sq mi) || 441/km² (1,141/sq mi) || 260/km² (673/sq mi)
|-
! scope="row" | Capital city
| Brussels || Amsterdam || Luxembourg City
|-
! scope="row" | Largest urban areas
|
|
|
|-
! scope="row" | Form of government
| Federal parliamentary constitutional monarchy ||Unitary parliamentary constitutional monarchy || Unitary parliamentary constitutional monarchy
|-
! scope="row" | Current head of state
| King Philippe || King Willem-Alexander || Grand Duke Henri
|-
! scope="row" | Current head of government
| Prime Minister Bart de Wever || Prime Minister Dick Schoof || Prime Minister Luc Frieden
|-
! scope="row" | Main religions
|
|
|
|-
! scope="row" | GDP nominal (2025)
| US$689.364 billion<ref name"Belgium"/> || US$1.273 trillion<ref name"Netherlands"/> || US$96.993 billion<ref name="Luxembourg"/>
|-
! scope="row" | GDP per capita nominal (2025)
| US$58,248<ref name"Belgium"/> || US$70,606<ref name"Netherlands"/> || US$141,079<ref name="Luxembourg"/>
|-
! scope="row" | GDP (PPP) (2025)
| US$889.833 billion<ref name"Belgium"/> || US$1.511 trillion<ref name"Netherlands"/> || US$106.505 billion<ref name="Luxembourg"/>
|-
! scope="row" | GDP per capita (PPP) (2025)
| US$75,187<ref name"Belgium"/> || US$83,823<ref name"Netherlands"/> || US$154,914<ref name="Luxembourg"/>
|-
! scope="row" | Currency
| Euro || Euro, also uses USD (in some cases) || Euro
|}
See also
* Admiral Benelux
* EU Med Group
* Baltic Assembly
* Inner Six
* Low Countries
* Nordic Council
* United Kingdom of the Netherlands
* Visegrád Group
* Polish–Czechoslovak confederation
* Proposed United Kingdom Confederation
Notes
ReferencesFurther reading*
* Willy van Ryckeghem : Benelux in: The European Economy - Growth and Crisis, Andrea Boltho, Editor, Oxford University Press, 1982, .
External links
; Official sites
* (in Dutch and French)
* [http://www.courbeneluxhof.be/ Benelux Court of Justice]
* [http://www.boip.int/en/homepage.php Benelux Office for Intellectual Property]
Category:Regions of Europe
Category:History of the Low Countries
Category:Economic history of Belgium
Category:Economic history of Luxembourg
Category:Economic history of the Netherlands
Category:1944 establishments in the Netherlands
Category:1944 establishments in Belgium
Category:1944 establishments in Luxembourg
Category:International economic organizations
Category:International organizations based in Europe
Category:International relations
Category:Supranational unions
Category:Organizations established in 1944
Category:Northwestern Europe
Category:Bottom-up regional groups within the European Union | https://en.wikipedia.org/wiki/Benelux | 2025-04-05T18:26:43.042417 |
4171 | Boston Herald | | political Conservative
| headquarters = 100 Grossman Dr. 4th Floor<br />Braintree, Massachusetts 02184<br />United States
| website =
| ISSN = 0738-5854
| oclc = 643304073
}}
The Boston Herald is an American daily newspaper whose primary market is Boston, Massachusetts, and its surrounding area. It was founded in 1846 and is one of the oldest daily newspapers in the United States. It has been awarded eight Pulitzer Prizes in its history, including four for editorial writing and three for photography before it was converted to tabloid format in 1981. The Herald was named one of the "10 Newspapers That 'Do It Right' in 2012 by Editor & Publisher.
In December 2017, the Herald filed for bankruptcy. On February 14, 2018, Digital First Media successfully bid $11.9 million to purchase the company in a bankruptcy auction; the acquisition was completed on March 19, 2018. As of August 2018, the paper had approximately 110 total employees, compared to about 225 before the sale.
History
The Herald history traces back through two lineages, the Daily Advertiser and the old Boston Herald, and two media moguls, William Randolph Hearst and Rupert Murdoch.
Founding
The original Boston Herald was founded in 1846 by a group of Boston printers jointly under the name of John A. French & Company. The paper was published as a single two-sided sheet, selling for one cent. Its first editor, William O. Eaton, just 22 years old, said "The Herald will be independent in politics and religion; liberal, industrious, enterprising, critically concerned with literacy and dramatic matters, and diligent in its mission to report and analyze the news, local and global."
In 1847, the Boston Herald absorbed the Boston American Eagle.The Boston Herald and Boston JournalIn October 1917, John H. Higgins, the publisher and treasurer of the Boston Herald bought out its next door neighbor The Boston Journal and created The Boston Herald and Boston JournalThe American TravelerEven earlier than the Herald, the weekly American Traveler was founded in 1825 as a bulletin for stagecoach listings.The Boston Evening Traveller
The Boston Evening Traveler was founded in 1845. The Boston Evening Traveler was the successor to the weekly American Traveler and the semi-weekly Boston Traveler. In 1912, the Herald acquired the Traveler, continuing to publish both under their own names. For many years, the newspaper was controlled by many of the investors in United Shoe Machinery Corporation. After a newspaper strike in 1967, Herald-Traveler Corp. suspended the afternoon Traveler and absorbed the evening edition into the Herald to create the Boston Herald Traveler.
The Boston Daily Advertiser
The Boston Daily Advertiser was established in 1813 in Boston by Nathan Hale. The paper grew to prominence throughout the 19th century, taking over other Boston area papers. In 1832 The Advertiser took over control of The Boston Patriot, and then in 1840 it took over and absorbed The Boston Gazette. The paper was purchased by William Randolph Hearst in 1917. In 1920 the Advertiser was merged with The Boston Record, initially the combined newspaper was called the Boston Advertiser however when the combined newspaper became an illustrated tabloid in 1921 it was renamed The Boston American. Hearst Corp. continued using the name Advertiser for its Sunday paper until the early 1970s.
The Boston Record
On September 3, 1884, The Boston Evening Record was started by the Boston Advertiser as a campaign newspaper. The Record was so popular that it was made a permanent publication. but Hearst faced steep declines in circulation and advertising. The company announced it would close the Herald American—making Boston a one-newspaper town—on December 3, 1982. When the deadline came, Australian-born media baron Rupert Murdoch was negotiating to buy the paper and save it. He closed on the deal after 31 hours of talks with Hearst and newspaper unions—and five hours after Hearst had sent out notices to newsroom employees telling them they were terminated. The newspaper announced its own survival the next day with a full-page headline: "You Bet We're Alive!"The Boston HeraldMurdoch changed the paper's name back to the Boston Herald. The Herald continued to grow, expanding its coverage and increasing its circulation until 2001, when nearly all newspapers fell victim to declining circulations and revenue.Independent ownershipIn February 1994, Murdoch's News Corporation was forced to sell the paper, in order that its subsidiary Fox Television Stations could legally consummate its purchase of Fox affiliate WFXT (Channel 25) because Massachusetts Senator Ted Kennedy included language in an appropriations bill barring one company from owning a newspaper and television station in the same market. Patrick J. Purcell, who was the publisher of the Boston Herald and a former News Corporation executive, purchased the Herald and established it as an independent newspaper. Several years later, Purcell would give the Herald a suburban presence it never had by purchasing the money-losing Community Newspaper Company from Fidelity Investments. Although the companies merged under the banner of Herald Media, Inc., the suburban papers maintained their distinct editorial and marketing identity.
After years of operating profits at Community Newspaper and losses at the Herald, Purcell in 2006 sold the suburban chain to newspaper conglomerate Liberty Group Publishing of Illinois, which soon after changed its name to GateHouse Media. The deal, which also saw GateHouse acquiring The Patriot Ledger and The Enterprise respectively in south suburban Quincy and Brockton, netted $225 million for Purcell, who vowed to use the funds to clear the Herald<nowiki>'s</nowiki> debt and reinvest in the Paper.
Boston Herald Radio
On August 5, 2013, the Herald launched an internet radio station named Boston Herald Radio, which includes shows hosted by much of the Herald staff. The station's morning lineup is simulcast on 830 AM WCRN from 10 am Eastern time to 12 noon Eastern time.
Bankruptcy
In December 2017, the Herald announced plans to sell itself to GateHouse Media after filing for chapter 11 bankruptcy protection. The deal was scheduled to be completed by February 2018, with the new company streamlining and having layoffs in coming months. However, in early January 2018, another potential buyer, Revolution Capital Group of Los Angeles, filed a bid with the federal bankruptcy court; the Herald reported in a press release that "the court requires BHI [Boston Herald, Inc.] to hold an auction to allow all potential buyers an opportunity to submit competing offers."
Digital First Media acquisition
In February 2018, acquisition of the Herald by Digital First Media for almost $12 million was approved by the bankruptcy court judge in Delaware. The new owner, DFM, said they would be keeping 175 of the approximately 240 employees the Herald had when it sought bankruptcy protection in December 2017. The acquisition was completed on March 19, 2018. with competitor The Boston Globe, moving printing from Taunton, Massachusetts, to Rhode Island and its "dehumanizing cost-cutting efforts" in personnel. In June, some design and advertising layoffs were expected, with work moving to a sister paper, The Denver Post. The "consolidation" took effect in August, with nine jobs eliminated.
In late August 2018, it was announced that the Herald would move its offices from Boston's Seaport District to Braintree, Massachusetts, in late November or early December.
On October 27, 2020, the Boston Herald endorsed Donald Trump for the 2020 U.S. Presidential Election.
In July 2024, the newspaper laid off three employees. It is not publicly known how many people still work at the Boston Herald, but the newsroom in 2020 consisted of 24 employees. A few years prior, the paper employed 240 people.Awards* 1924. Pulitzer Prizes for Editorial Writing, Frank W. Buxton, "Who Made Coolidge?"
* 1927. Pulitzer Prizes for Editorial Writing, Frank Cushing, "Boy Gunman and Hostage"
* 1949. Pulitzer Prizes for Editorial Writing, Stanley Forman, for Fire Escape Collapse, a dramatic shot of a young woman and child falling as the fire escape to which they had fled during an apartment house fire collapsed on July 22, 1975
* 1977. Pulitzer Prizes for Spot News Photography, staff photographers, for photographic coverage of The Blizzard of 1978
*2006. Society of American Business Editors and Writers (SABEW) Award as "Business winners" for "overall excellence" coverage
*2006. Society of American Business Editors and Writers (SABEW) Award as "Business winners" for "Breaking News" coverage of the takeover of the Boston-based Gillette Company by Procter & Gamble
* Steve Buckley was a longtime sports columnist.
* Gerry Callahan is a sports columnist and a longtime former talk show host for WEEI until he was let go for poor ratings.
* Howie Carr writes about local politics, and is a radio talk show host and frequent TV commentator.
* Bill Cunningham (sports writer) (1895–1961), highest paid sportswriter of his time
*George Frazier's Sweet and Lowdown column debuted on January 27, 1942, and may have been the first jazz column in a big-city American newspaper. Besides jazz, Frazier's column covered books, sports, the media, night life, popular and classical culture, and other topics.
* Peter Gelzinis is a longtime metro columnist, as is Joe Fitzgerald, who was formerly a sports columnist.
* Michael Graham is an op-ed columnist for the Boston Herald.
* George Edward Kimball was a sports columnist best known for his coverage of boxing.
* Olivia Vanni writes the Heralds Inside Track and covers celebrity news.
* Peter Lucas was a longtime political columnist and reporter
* Bob McGovern was the Heralds legal columnist and also worked as a reporter.
* Kevin Mannix - sports journalist, Patriots Beat reporter, columnist.
* Leo Monahan – sports journalist who wrote for the Daily Record, the Record American and the Herald American
* Joe Sciacca is the paper's editor-in-chief. Sciacca is a former political reporter and columnist.
See also
* The Boston Daily Advertiser
* The Boston Journal
* The Boston News-Letter
* The Boston Evening Transcript
* The Boston Globe
* The Boston Post
* Lillian A. Lewis, Boston's first African-American woman journalist
* Frances Sweeney of the Boston Herald Rumor Clinic
* Murphy v. Boston Herald, Inc., et al.
References
Boston Herald July 29, 1998
Further reading
*
* Quinlan, Sterling (1974) The Hundred Million Dollar Lunch (Chicago, J.P. O'Hara), .
* External links
*
* [https://www.boston.com/business/articles/2005/11/08/heralds_circulation_declines/ Herald's circulation declines]
* [https://web.archive.org/web/20111126034119/http://www.heraldmedia.com/heraldMedia/history.html Company History]
*
Category:1846 establishments in Massachusetts
Category:Newspapers published in Boston
Category:Newspapers established in 1846
Category:Former News Corporation subsidiaries | https://en.wikipedia.org/wiki/Boston_Herald | 2025-04-05T18:26:43.086126 |
4173 | Babe Ruth | |birth_place=Baltimore, Maryland, U.S.
|death_date
|death_place=New York City, U.S.
|debutleague = MLB
|debutdate=July 11
|debutyear=1914
|debutteam=Boston Red Sox
|finalleague = MLB
|finaldate=May 30
|finalyear=1935
|finalteam=Boston Braves
|statleague = MLB
|stat1label=Batting average
|stat1value=.342
|stat3label=Home runs
|stat3value=714
|stat2label=Hits
|stat2value=2,873
|stat4label=Runs batted in
|stat4value=2,214
|stat5label=Win–loss record
|stat5value=94–46
|stat6label=Earned run average
|stat6value=2.28
|stat7label=Strikeouts
|stat7value=488
|teams=
As player
* Boston Red Sox (–)
* New York Yankees (–)
* Boston Braves ()
As coach
* Brooklyn Dodgers ()
|highlights=
* 2× All-Star (1933, 1934)
* 7× World Series champion (, , , , , , )
* AL MVP (1923)
* AL batting champion (1924)
* 12× AL home run leader (1918–1921, 1923, 1924, 1926–1931)
* 5× AL RBI leader (1919–1921, 1923, 1926)
* AL ERA leader (1916)
*Pitched a combined no-hitter on June 23, 1917
* New York Yankees No. 3 retired
* Monument Park honoree
* Boston Red Sox Hall of Fame
* Major League Baseball All-Century Team
* Major League Baseball All-Time Team
*Other career achievements and records
|hoflink = National Baseball Hall of Fame and Museum
|hoftype = National
|hofdate=1936
|hofvote=95.1% (first ballot)
}}
George Herman "Babe" Ruth (February 6, 1895 – August 16, 1948) was an American professional baseball player whose career in Major League Baseball (MLB) spanned 22 seasons, from 1914 through 1935. Nicknamed "the Bambino" and "the Sultan of Swat", he began his MLB career as a star left-handed pitcher for the Boston Red Sox, but achieved his greatest fame as a slugging outfielder for the New York Yankees. Ruth is regarded as one of the greatest sports heroes in American culture and is considered by many to be the greatest baseball player of all time. In 1936, Ruth was elected to the Baseball Hall of Fame as one of its "first five" inaugural members.
At age seven, Ruth was sent to St. Mary's Industrial School for Boys, a reformatory where he was mentored by Brother Matthias Boutlier of the Xaverian Brothers, the school's disciplinarian and a capable baseball player. In 1914, Ruth was signed to play Minor League baseball for the Baltimore Orioles but was soon sold to the Red Sox. By 1916, he had built a reputation as an outstanding pitcher who sometimes hit long home runs, a feat unusual for any player in the dead-ball era. Although Ruth twice won 23 games in a season as a pitcher and was a member of three World Series championship teams with the Red Sox, he wanted to play every day and was allowed to convert to an outfielder. With regular playing time, he broke the MLB single-season home run record in 1919 with 29.
After that season, Red Sox owner Harry Frazee sold Ruth to the Yankees amid controversy. The trade fueled Boston's subsequent 86-year championship drought and popularized the "Curse of the Bambino" superstition. In his 15 years with the Yankees, Ruth helped the team win seven American League (AL) pennants and four World Series championships. His big swing led to escalating home run totals that not only drew fans to the ballpark and boosted the sport's popularity but also helped usher in baseball's live-ball era, which evolved from a low-scoring game of strategy to a sport where the home run was a major factor. As part of the Yankees' vaunted "Murderers' Row" lineup of 1927, Ruth hit 60 home runs, which extended his own MLB single-season record by a single home run. Ruth's last season with the Yankees was 1934, and he retired after a short stint with the Boston Braves the following year. In his career, he led the AL in home runs twelve times.
During Ruth's career, he was the target of intense press and public attention for his baseball exploits and off-field penchants for drinking and womanizing. After his retirement as a player, he was denied the opportunity to manage a major league club, most likely because of poor behavior during parts of his playing career. In his final years, Ruth made many public appearances, especially in support of American efforts in World War II. In 1946, he became ill with nasopharyngeal cancer and died from the disease two years later. Ruth remains a major figure in American culture.
Early life
in Baltimore, Maryland]]
George Herman Ruth Jr. was born on February 6, 1895, at 216 Emory Street in the Pigtown section of Baltimore, in a house which belonged to his maternal grandfather Pius Schamberger, a German immigrant and trade unionist. Ruth's parents, Katherine (née Schamberger) and George Herman Ruth Sr., were both of German ancestry. According to the 1880 census, his parents were both born in Maryland. His paternal grandparents were from Prussia and Hanover, Germany. Ruth Sr. worked a series of jobs that included lightning rod salesman and streetcar operator. The elder Ruth then became a counterman in a family-owned combination grocery and saloon business on Frederick Street. Only one of young Ruth's seven siblings, his younger sister Mamie, survived infancy.
Many details of Ruth's childhood are unknown, including the date of his parents' marriage. As a child, Ruth spoke German. When Ruth was a toddler, the family moved to 339 South Woodyear Street, not far from the rail yards; by the time he was six years old, his father had a saloon with an upstairs apartment at 426 West Camden Street. Details are equally scanty about why Ruth was sent at the age of seven to St. Mary's Industrial School for Boys, a reformatory and orphanage. As an adult, Ruth admitted that as a youth he ran the streets, rarely attended school, and drank beer when his father was not looking. Some accounts say that following a violent incident at his father's saloon, the city authorities decided that this environment was unsuitable for a small child. Ruth entered St. Mary's on June 13, 1902. He was recorded as "incorrigible" and spent much of the next 12 years there.
Although St. Mary's boys received an education, students were also expected to learn work skills and help operate the school, particularly once the boys turned 12. Ruth became a shirtmaker and was also proficient as a carpenter. He would adjust his own shirt collars, rather than having a tailor do so, even during his well-paid baseball career. The boys, aged 5 to 21, did most of the work around the facility, from cooking to shoemaking, and renovated St. Mary's in 1912. The food was simple, and the Xaverian Brothers who ran the school insisted on strict discipline; corporal punishment was common. Ruth's nickname there was "Niggerlips", as he had large facial features and was darker than most boys at the all-white reformatory.
Ruth was sometimes allowed to rejoin his family or was placed at St. James's Home, a supervised residence with work in the community, but he was always returned to St. Mary's. He was rarely visited by his family; his mother died when he was 12 and, by some accounts, he was permitted to leave St. Mary's only to attend the funeral. How Ruth came to play baseball there is uncertain: according to one account, his placement at St. Mary's was due in part to repeatedly breaking Baltimore's windows with long hits while playing street ball; by another, he was told to join a team on his first day at St. Mary's by the school's athletic director, Brother Herman, becoming a catcher even though left-handers rarely play that position. During his time there he also played third base and shortstop, again unusual for a left-hander, and was forced to wear mitts and gloves made for right-handers. He was encouraged in his pursuits by the school's Prefect of Discipline, Brother Matthias Boutlier, a native of Nova Scotia. A large man, Brother Matthias was greatly respected by the boys both for his strength and for his fairness. For the rest of his life, Ruth would praise Brother Matthias, and his running and hitting styles closely resembled his teacher's. Ruth stated, "I think I was born as a hitter the first day I ever saw him hit a baseball." The older man became a mentor and role model to Ruth; biographer Robert W. Creamer commented on the closeness between the two:
... which is remarkable, considering that Matthias was in charge of making boys behave and that Ruth was one of the great natural misbehavers of all time.... George Ruth caught Brother Matthias' attention early, and the calm, considerable attention the big man gave the young hellraiser from the waterfront struck a spark of response in the boy's soul... [that may have] blunted a few of the more savage teeth in the gross man whom I have heard at least a half-dozen of his baseball contemporaries describe with admiring awe and wonder as "an animal." He was generous to St. Mary's as he became famous and rich, donating money and his presence at fundraisers, and spending $5,000 to buy Brother Matthias a Cadillac in 1926—subsequently replacing it when it was destroyed in an accident. Nevertheless, his biographer Leigh Montville suggests that many of the off-the-field excesses of Ruth's career were driven by the deprivations of his time at St. Mary's.
Most of the boys at St. Mary's played baseball in organized leagues at different levels of proficiency. Ruth later estimated that he played 200 games a year as he steadily climbed the ladder of success. Although he played all positions at one time or another, he gained stardom as a pitcher. According to Brother Matthias, Ruth was standing to one side laughing at the bumbling pitching efforts of fellow students, and Matthias told him to go in and see if he could do better. Ruth had become the best pitcher at St. Mary's, and when he was 18 in 1913, he was allowed to leave the premises to play weekend games on teams that were drawn from the community. He was mentioned in several newspaper articles, for both his pitching prowess and ability to hit long home runs.
Professional baseball
Minor leagues: Baltimore Orioles
In early 1914, Ruth signed a professional baseball contract with Jack Dunn, who owned and managed the minor-league Baltimore Orioles, an International League team. The circumstances of Ruth's signing are not known with certainty. By some accounts, Dunn was urged to attend a game between an all-star team from St. Mary's and one from another Xaverian facility, Mount St. Mary's College. Some versions have Ruth running away before the eagerly awaited game, to return in time to be punished, and then pitching St. Mary's to victory as Dunn watched. Others have Washington Senators pitcher Joe Engel, a Mount St. Mary's graduate, pitching in an alumni game after watching a preliminary contest between the college's freshmen and a team from St. Mary's, including Ruth. Engel watched Ruth play, then told Dunn about him at a chance meeting in Washington. Ruth, in his autobiography, stated only that he worked out for Dunn for a half hour, and was signed. According to biographer Kal Wagenheim, there were legal difficulties to be straightened out as Ruth was supposed to remain at the school until he turned 21, though SportsCentury stated in a documentary that Ruth had already been discharged from St. Mary's when he turned 19, and earned a monthly salary of $100. The rookie ballplayer was the subject of various pranks by veteran players, who were probably also the source of his famous nickname. There are various accounts of how Ruth came to be called "Babe", but most center on his being referred to as "Dunnie's babe" (or some variant). SportsCentury reported that his nickname was gained because he was the new "darling" or "project" of Dunn, not only because of Ruth's raw talent, but also because of his lack of knowledge of the proper etiquette of eating out in a restaurant, being in a hotel, or being on a train. "Babe" was, at that time, a common nickname in baseball, with perhaps the most famous to that point being Pittsburgh Pirates pitcher and 1909 World Series hero Babe Adams, who appeared younger than his actual age.
Ruth made his first appearance as a professional ballplayer in an inter-squad game on March 7, 1914. He played shortstop and pitched the last two innings of a 15–9 victory. In his second at-bat, Ruth hit a long home run to right field; the blast was locally reported to be longer than a legendary shot hit by Jim Thorpe in Fayetteville. Ruth made his first appearance against a team in organized baseball in an exhibition game versus the major-league Philadelphia Phillies. Ruth pitched the middle three innings and gave up two runs in the fourth, but then settled down and pitched a scoreless fifth and sixth innings. In a game against the Phillies the following afternoon, Ruth entered during the sixth inning and did not allow a run the rest of the way. The Orioles scored seven runs in the bottom of the eighth inning to overcome a 6–0 deficit, and Ruth was the winning pitcher.
Once the regular season began, Ruth was a star pitcher who was also dangerous at the plate. The team performed well, yet received almost no attention from the Baltimore press. A third major league, the Federal League, had begun play, and the local franchise, the Baltimore Terrapins, restored that city to the major leagues for the first time since 1902. Few fans visited Oriole Park, where Ruth and his teammates labored in relative obscurity. Ruth may have been offered a bonus and a larger salary to jump to the Terrapins; when rumors to that effect swept Baltimore, giving Ruth the most publicity he had experienced to date, a Terrapins official denied it, stating it was their policy not to sign players under contract to Dunn.
The competition from the Terrapins caused Dunn to sustain large losses. Although by late June the Orioles were in first place, having won over two-thirds of their games, the paid attendance dropped as low as 150. Dunn explored a possible move by the Orioles to Richmond, Virginia, as well as the sale of a minority interest in the club. These possibilities fell through, leaving Dunn with little choice other than to sell his best players to major league teams to raise money. He offered Ruth to the reigning World Series champions, Connie Mack's Philadelphia Athletics, but Mack had his own financial problems. The Cincinnati Reds and New York Giants expressed interest in Ruth, but Dunn sold his contract, along with those of pitchers Ernie Shore and Ben Egan, to the Boston Red Sox of the American League (AL) on July 4. The sale price was announced as $25,000 but other reports lower the amount to half that, or possibly $8,500 plus the cancellation of a $3,000 loan. Ruth remained with the Orioles for several days while the Red Sox completed a road trip, and reported to the team in Boston on July 11.Boston Red Sox (1914–1919)Developing star
]]
On July 11, 1914, Ruth arrived in Boston with Egan and Shore. Ruth later told the story of how that morning he had met Helen Woodford, who would become his first wife. She was a 16-year-old waitress at Landers Coffee Shop, and Ruth related that she served him when he had breakfast there. Other stories, though, suggested that the meeting occurred on another day, and perhaps under other circumstances. Regardless of when he began to court his first wife, he won his first game as a pitcher for the Red Sox that afternoon, 4–3, over the Cleveland Naps. His catcher was Bill Carrigan, who was also the Red Sox manager. Shore was given a start by Carrigan the next day; he won that and his second start and thereafter was pitched regularly. Ruth lost his second start, and was thereafter little used. Ruth was not much noticed by the fans, as Bostonians watched the Red Sox's crosstown rivals, the Braves, begin a legendary comeback that would take them from last place on the Fourth of July to the 1914 World Series championship.
Egan was traded to Cleveland after two weeks on the Boston roster. During his time with the Red Sox, he kept an eye on the inexperienced Ruth, much as Dunn had in Baltimore. When he was traded, no one took his place as supervisor. Ruth's new teammates considered him brash and would have preferred him as a rookie to remain quiet and inconspicuous. When Ruth insisted on taking batting practice despite being both a rookie who did not play regularly and a pitcher, he arrived to find his bats sawed in half. His teammates nicknamed him "the Big Baboon", a name the swarthy Ruth, who had disliked the nickname "Niggerlips" at St. Mary's, detested. Ruth had received a raise on promotion to the major leagues and quickly acquired tastes for fine food, liquor, and women, among other temptations.
Manager Carrigan allowed Ruth to pitch two exhibition games in mid-August. Although Ruth won both against minor-league competition, he was not restored to the pitching rotation. It is uncertain why Carrigan did not give Ruth additional opportunities to pitch. There are legends—filmed for the screen in The Babe Ruth Story (1948)—that the young pitcher had a habit of signaling his intent to throw a curveball by sticking out his tongue slightly, and that he was easy to hit until this changed. Creamer pointed out that it is common for inexperienced pitchers to display such habits, and the need to break Ruth of his would not constitute a reason to not use him at all. The biographer suggested that Carrigan was unwilling to use Ruth because of the rookie's poor behavior.
team photo with Babe Ruth (top row, center), 1914]]
On July 30, 1914, Boston owner Joseph Lannin had purchased the minor-league Providence Grays, members of the International League. The Providence team had been owned by several people associated with the Detroit Tigers, including star hitter Ty Cobb, and as part of the transaction, a Providence pitcher was sent to the Tigers. To soothe Providence fans upset at losing a star, Lannin announced that the Red Sox would soon send a replacement to the Grays. This was intended to be Ruth, but his departure for Providence was delayed when Cincinnati Reds owner Garry Herrmann claimed him by waiver. After Lannin wrote to Herrmann explaining that the Red Sox wanted Ruth in Providence so he could develop as a player, and would not release him to a major league club, Herrmann allowed Ruth to be sent to the minors. Carrigan later stated that Ruth was not sent down to Providence to make him a better player, but to help the Grays win the International League pennant (league championship).
Ruth joined the Grays on August 18, 1914. After Dunn's deals, the Baltimore Orioles managed to hold on to first place until August 15, after which they continued to fade, leaving the pennant race between Providence and Rochester. Ruth was deeply impressed by Providence manager "Wild Bill" Donovan, previously a star pitcher with a 25–4 win–loss record for Detroit in 1907; in later years, he credited Donovan with teaching him much about pitching. Ruth was often called upon to pitch, in one stretch starting (and winning) four games in eight days. On September 5 at Maple Leaf Park in Toronto, Ruth pitched a one-hit 9–0 victory, and hit his first professional home run, his only one as a minor leaguer, off Ellis Johnson. Recalled to Boston after Providence finished the season in first place, he pitched and won a game for the Red Sox against the New York Yankees on October 2, getting his first major league hit, a double. Ruth finished the season with a record of 2–1 as a major leaguer and 23–8 in the International League (for Baltimore and Providence). Once the season concluded, Ruth married Helen in Ellicott City, Maryland. Creamer speculated that they did not marry in Baltimore, where the newlyweds boarded with George Ruth Sr., to avoid possible interference from those at St. Mary's—both bride and groom were not yet of age and Ruth remained on parole from that institution until his 21st birthday.
In March 1915, Ruth reported to Hot Springs, Arkansas, for his first major league spring training. Despite a relatively successful first season, he was not slated to start regularly for the Red Sox, who already had two "superb" left-handed pitchers, according to Creamer: the established stars Dutch Leonard, who had broken the record for the lowest earned run average (ERA) in a single season; and Ray Collins, a 20-game winner in both 1913 and 1914. Ruth was ineffective in his first start, taking the loss in the third game of the season. Injuries and ineffective pitching by other Boston pitchers gave Ruth another chance, and after some good relief appearances, Carrigan allowed Ruth another start, and he won a rain-shortened seven inning game. Ten days later, the manager had him start against the New York Yankees at the Polo Grounds. Ruth took a 3–2 lead into the ninth, but lost the game 4–3 in 13 innings. Ruth, hitting ninth as was customary for pitchers, hit a massive home run into the upper deck in right field off of Jack Warhop. At the time, home runs were rare in baseball, and Ruth's majestic shot awed the crowd. The winning pitcher, Warhop, would in August 1915 conclude a major league career of eight seasons, undistinguished but for being the first major league pitcher to give up a home run to Babe Ruth.
in 1916]]
Carrigan was sufficiently impressed by Ruth's pitching to give him a spot in the starting rotation. Ruth finished the 1915 season 18–8 as a pitcher; as a hitter, he batted .315 and had four home runs. The Red Sox won the AL pennant, but with the pitching staff healthy, Ruth was not called upon to pitch in the 1915 World Series against the Philadelphia Phillies. Boston won in five games. Ruth was used as a pinch hitter in Game Five, but grounded out against Phillies ace Grover Cleveland Alexander. Despite his success as a pitcher, Ruth was acquiring a reputation for long home runs; at Sportsman's Park against the St. Louis Browns, a Ruth hit soared over Grand Avenue, breaking the window of a Chevrolet dealership.
In 1916, attention focused on Ruth's pitching as he engaged in repeated pitching duels with Washington Senators' ace Walter Johnson. The two met five times during the season with Ruth winning four and Johnson one (Ruth had a no decision in Johnson's victory). Two of Ruth's victories were by the score of 1–0, one in a 13-inning game. Of the 1–0 shutout decided without extra innings, AL president Ban Johnson stated, "That was one of the best ball games I have ever seen." For the season, Ruth went 23–12, with a 1.75 ERA and nine shutouts, both of which led the league. Ruth's nine shutouts in 1916 set a league record for left-handers that would remain unmatched until Ron Guidry tied it in 1978. The Red Sox won the pennant and World Series again, this time defeating the Brooklyn Robins (as the Dodgers were then known) in five games. Ruth started and won Game 2, 2–1, in 14 innings. Until another game of that length was played in 2005, this was the longest World Series game, and Ruth's pitching performance is still the longest postseason complete game victory.
Carrigan retired as player and manager after 1916, returning to his native Maine to be a businessman. Ruth, who played under four managers who are in the National Baseball Hall of Fame, always maintained that Carrigan, who is not enshrined there, was the best skipper he ever played for. There were other changes in the Red Sox organization that offseason, as Lannin sold the team to a three-man group headed by New York theatrical promoter Harry Frazee. Jack Barry was hired by Frazee as manager.Emergence as a hitterRuth went 24–13 with a 2.01 ERA and six shutouts in 1917, but the Sox finished in second place in the league, nine games behind the Chicago White Sox in the standings. On June 23 at Washington, when home plate umpire 'Brick' Owens called the first four pitches as balls, Ruth was ejected from the game and threw a punch at him, and was later suspended for ten days and fined $100. Ernie Shore was called in to relieve Ruth, and was allowed eight warm-up pitches. The runner who had reached base on the walk was caught stealing, and Shore retired all 26 batters he faced to win the game. Shore's feat was listed as a perfect game for many years. In 1991, Major League Baseball's (MLB) Committee on Statistical Accuracy amended it to be listed as a combined no-hitter. In 1917, Ruth was used little as a batter, other than for his plate appearances while pitching, and hit .325 with two home runs.
The United States' entry into World War I occurred at the start of the season and overshadowed baseball. Conscription was introduced in September 1917, and most baseball players in the big leagues were of draft age. This included Barry, who was a player-manager, and who joined the Naval Reserve in an attempt to avoid the draft, only to be called up after the 1917 season. Frazee hired International League President Ed Barrow as Red Sox manager. Barrow had spent the previous 30 years in a variety of baseball jobs, though he never played the game professionally. With the major leagues shorthanded because of the war, Barrow had many holes in the Red Sox lineup to fill. In early May, Barrow gave in; Ruth promptly hit home runs in four consecutive games (one an exhibition), the last off of Walter Johnson. For the first time in his career (disregarding pinch-hitting appearances), Ruth was assigned a place in the batting order higher than ninth. On July 8, in a scoreless game, with a runner on first base Ruth hit a ball out of the ballpark to drive in the game-winning run; this was recorded as a triple, since the rules at that time considered the game over once the winning run scored. In 1968 the Special Baseball Records Committee unanimously ruled this, along with 36 other hits, a home run, but in part due to the perceived importance of preserving Ruth's home run total at 714, in 1969 the committee reversed this decision.
In 1918, the Red Sox won their third pennant in four years and faced the Chicago Cubs in the World Series, which began on September 5, the earliest date in history. The season had been shortened because the government had ruled that baseball players who were eligible for the military would have to be inducted or work in critical war industries, such as armaments plants. Ruth pitched and won Game One for the Red Sox, a 1–0 shutout. Before Game Four, Ruth injured his left hand in a fight but pitched anyway. He gave up seven hits and six walks, but was helped by outstanding fielding behind him and by his own batting efforts, as a fourth-inning triple by Ruth gave his team a 2–0 lead. The Cubs tied the game in the eighth inning, but the Red Sox scored to take a 3–2 lead again in the bottom of that inning. After Ruth gave up a hit and a walk to start the ninth inning, he was relieved on the mound by Joe Bush. To keep Ruth and his bat in the game, he was sent to play left field. Bush retired the side to give Ruth his second win of the Series, and the third and last World Series pitching victory of his career, against no defeats, in three pitching appearances. Ruth's effort gave his team a three-games-to-one lead, and two days later the Red Sox won their third Series in four years, four-games-to-two. Before allowing the Cubs to score in Game Four, Ruth pitched consecutive scoreless innings, a record for the World Series that stood for more than 40 years until 1961, broken by Whitey Ford. Ruth was prouder of that record than he was of any of his batting feats.
With the World Series over, Ruth gained exemption from the war draft by accepting a nominal position with a Pennsylvania steel mill. Many industrial establishments took pride in their baseball teams and sought to hire major leaguers. The end of the war in November set Ruth free to play baseball without such contrivances.
During the 1919 season, Ruth was used as a pitcher in only 17 of his 130 games
Two home runs by Ruth on July 5, and one in each of two consecutive games a week later, raised his season total to 11, tying his career best from 1918. The first record to fall was the AL single-season mark of 16, set by Ralph "Socks" Seybold in 1902. Ruth matched that on July 29, then pulled ahead toward the major league record of 25, set by Buck Freeman in 1899. By the time Ruth reached this in early September, writers had discovered that Ned Williamson of the 1884 Chicago White Stockings had hit 27—though in a ballpark where the distance to right field was only . On September 20, "Babe Ruth Day" at Fenway Park, Ruth won the game with a home run in the bottom of the ninth inning, tying Williamson. He broke the record four days later against the Yankees at the Polo Grounds, and hit one more against the Senators to finish with 29. The home run at Washington made Ruth the first major league player to hit a home run at all eight ballparks in his league. In spite of Ruth's hitting heroics, the Red Sox finished sixth, games behind the league champion White Sox. In his six seasons with Boston, he won 89 games and recorded a 2.19 ERA. He had a four-year stretch where he was second in the AL in wins and ERA behind Walter Johnson, and Ruth had a winning record against Johnson in head-to-head matchups. The 1919 season saw record-breaking attendance, and Ruth's home runs for Boston made him a national sensation. In March 1919 Ruth was reported as having accepted a three-year contract for a total of $27,000, after protracted negotiations. Nevertheless, on December 26, 1919, Frazee sold Ruth's contract to the New York Yankees.
, 1920]]
Not all the circumstances concerning the sale are known, but brewer and former congressman Jacob Ruppert, the New York team's principal owner, reportedly asked Yankee manager Miller Huggins what the team needed to be successful. "Get Ruth from Boston", Huggins supposedly replied, noting that Frazee was perennially in need of money to finance his theatrical productions. An often-told story is that Frazee needed money, and sold Ruth to finance the musical No, No, Nanette; that play did not open until 1925, by which time Frazee had sold the Red Sox, There were also other financial pressures on Frazee, despite his team's success. Ruth, fully aware of baseball's popularity and his role in it, wanted to renegotiate his contract, signed before the 1919 season for $10,000 per year through 1921. He demanded that his salary be doubled, or he would sit out the season and cash in on his popularity through other ventures. Ruth's salary demands were causing other players to ask for more money. Additionally, Frazee still owed Lannin as much as $125,000 from the purchase of the club.
Although Ruppert and his co-owner, Colonel Tillinghast Huston, were both wealthy, and had aggressively purchased and traded for players in 1918 and 1919 to build a winning team, Ruppert faced losses in his brewing interests as Prohibition was implemented, and if their team left the Polo Grounds, where the Yankees were the tenants of the New York Giants, building a stadium in New York would be expensive. Nevertheless, when Frazee, who moved in the same social circles as Huston, hinted to the colonel that Ruth was available for the right price, the Yankees owners quickly pursued the purchase.
Frazee sold the rights to Babe Ruth for $100,000, the largest sum ever paid for a baseball player. The deal also involved a $350,000 loan from Ruppert to Frazee, secured by a mortgage on Fenway Park. Once it was agreed, Frazee informed Barrow, who, stunned, told the owner that he was getting the worse end of the bargain. Cynics have suggested that Barrow may have played a larger role in the Ruth sale, as less than a year after, he became the Yankee general manager, and in the following years made a number of purchases of Red Sox players from Frazee. The $100,000 price included $25,000 in cash, and notes for the same amount due November 1 in 1920, 1921, and 1922; Ruppert and Huston assisted Frazee in selling the notes to banks for immediate cash. The New York Times suggested that "The short right field wall at the Polo Grounds should prove an easy target for Ruth next season and, playing seventy-seven games at home, it would not be surprising if Ruth surpassed his home run record of twenty-nine circuit clouts next Summer." According to Reisler, "The Yankees had pulled off the sports steal of the century." The Red Sox, winners of five of the first 16 World Series, those played between 1903 and 1919, would not win another pennant until 1946, or another World Series until 2004, a drought attributed in baseball superstition to Frazee's sale of Ruth and sometimes dubbed the "Curse of the Bambino". Conversely, the Yankees had not won the AL championship prior to their acquisition of Ruth. They won seven AL pennants and four World Series with him, and lead baseball with 40 pennants and 27 World Series titles in their history.
New York Yankees (1920–1934)
Initial success (1920–1923)
When Ruth signed with the Yankees, his transition from a pitcher to a power-hitting outfielder was complete. His fifteen-season Yankee career consisted of over 2,000 games, and Ruth broke many batting records while making only five widely scattered appearances on the mound, winning all of them. Both situations began to change on May 1, when Ruth hit a tape measure home run that sent the ball completely out of the Polo Grounds, a feat believed to have been previously accomplished only by Shoeless Joe Jackson. The Yankees won, 6–0, taking three out of four from the Red Sox. Ruth hit his second home run on May 2, and by the end of the month had set a major league record for home runs in a month with 11, and promptly broke it with 13 in June. Fans responded with record attendance figures. On May 16, Ruth and the Yankees drew 38,600 to the Polo Grounds, a record for the ballpark, and 15,000 fans were turned away. Large crowds jammed stadiums to see Ruth play when the Yankees were on the road.
cartoon, presidential candidates Warren G. Harding and James M. Cox wonder at Ruth's record home run pace.]]
The home runs kept on coming. Ruth tied his own record of 29 on July 15 and broke it with home runs in both games of a doubleheader four days later. By the end of July, he had 37, but his pace slackened somewhat after that. Nevertheless, on September 4, he both tied and broke the organized baseball record for home runs in a season, snapping Perry Werden's 1895 mark of 44 in the minor Western League. The Yankees played well as a team, battling for the league lead early in the summer, but slumped in August in the AL pennant battle with Chicago and Cleveland. The pennant and the World Series were won by Cleveland, who surged ahead after the Black Sox Scandal broke on September 28 and led to the suspension of many of Chicago's top players, including Shoeless Joe Jackson. The Yankees finished third, but drew 1.2 million fans to the Polo Grounds, the first time a team had drawn a seven-figure attendance. The rest of the league sold 600,000 more tickets, many fans there to see Ruth, who led the league with 54 home runs, 158 runs, and 137 runs batted in (RBIs).
In 1920 and afterwards, Ruth was aided in his power hitting by the fact that A.J. Reach Company—the maker of baseballs used in the major leagues—was using a more efficient machine to wind the yarn found within the baseball. The new baseballs went into play in 1920 and ushered the start of the live-ball era; the number of home runs across the major leagues increased by 184 over the previous year. Baseball statistician Bill James pointed out that while Ruth was likely aided by the change in the baseball, there were other factors at work, including the gradual abolition of the spitball (accelerated after the death of Ray Chapman, struck by a pitched ball thrown by Mays in August 1920) and the more frequent use of new baseballs (also a response to Chapman's death). Nevertheless, James theorized that Ruth's 1920 explosion might have happened in 1919, had a full season of 154 games been played rather than 140, had Ruth refrained from pitching 133 innings that season, and if he were playing at any other home field but Fenway Park, where he hit only 9 of 29 home runs.
looking at one of Ruth's home run bats, 1920]]
Yankees business manager Harry Sparrow had died early in the 1920 season. Ruppert and Huston hired Barrow to replace him. The two men quickly made a deal with Frazee for New York to acquire some of the players who would be mainstays of the early Yankee pennant-winning teams, including catcher Wally Schang and pitcher Waite Hoyt. The 21-year-old Hoyt became close to Ruth:
... The puzzle of Babe Ruth never was dull, no matter how many times Hoyt picked up the pieces and stared at them. After games he would follow the crowd to the Babe's suite. No matter what the town, the beer would be iced and the bottles would fill the bathtub.
}}
In the offseason, Ruth spent some time in Havana, Cuba, where he was said to have lost $35,000 () betting on horse races.
Ruth hit home runs early and often in the 1921 season, during which he broke Roger Connor's mark for home runs in a career, 138. Each of the almost 600 home runs Ruth hit in his career after that extended his own record. After a slow start, the Yankees were soon locked in a tight pennant race with Cleveland, winners of the 1920 World Series. On September 15, Ruth hit his 55th home run, breaking his year-old single-season record. In late September, the Yankees visited Cleveland and won three out of four games, giving them the upper hand in the race, and clinched their first pennant a few days later. Ruth finished the regular season with 59 home runs, batting .378 and with a slugging percentage of .846. Ruth's 177 runs scored, 119 extra-base hits, and 457 total bases set modern-era records that still stand .
The Yankees had high expectations when they met the New York Giants in the 1921 World Series, every game of which was played in the Polo Grounds. The Yankees won the first two games with Ruth in the lineup. However, Ruth badly scraped his elbow during Game 2 when he slid into third base (he had walked and stolen both second and third bases). After the game, he was told by the team physician not to play the rest of the series. Despite this advice, he did play in the next three games, and pinch-hit in Game Eight of the best-of-nine series, but the Yankees lost, five games to three. Ruth hit .316, drove in five runs and hit his first World Series home run.
in Washington, D.C.]]
After the Series, Ruth and teammates Bob Meusel and Bill Piercy participated in a barnstorming tour in the Northeast. A rule then in force prohibited World Series participants from playing in exhibition games during the offseason, the purpose being to prevent Series participants from replicating the Series and undermining its value. Baseball Commissioner Kenesaw Mountain Landis suspended the trio until May 20, 1922, and fined them their 1921 World Series checks. In August 1922, the rule was changed to allow limited barnstorming for World Series participants, with Landis's permission required.
On March 4, 1922, Ruth signed a new contract for three years at $52,000 a year (). This was more than two times the largest sum ever paid to a ballplayer up to that point and it represented 40% of the team's player payroll.
Despite his suspension, Ruth was named the Yankees' new on-field captain prior to the 1922 season. During the suspension, he worked out with the team in the morning and played exhibition games with the Yankees on their off days. He and Meusel returned on May 20 to a sellout crowd at the Polo Grounds, but Ruth batted 0-for-4 and was booed. On May 25, he was thrown out of the game for throwing dust in umpire George Hildebrand's face, then climbed into the stands to confront a heckler. Ban Johnson ordered him fined, suspended, and stripped of position as team captain. In his shortened season, Ruth appeared in 110 games, batted .315, with 35 home runs, and drove in 99 runs,
After the season, Ruth was a guest at an Elks Club banquet, set up by Ruth's agent with Yankee team support. There, each speaker, concluding with future New York mayor Jimmy Walker, censured him for his poor behavior. An emotional Ruth promised reform, and, to the surprise of many, followed through. When he reported to spring training, he was in his best shape as a Yankee, weighing only .
The Yankees' status as tenants of the Giants at the Polo Grounds had become increasingly uneasy, and in 1922, Giants owner Charles Stoneham said the Yankees' lease, expiring after that season, would not be renewed. Ruppert and Huston had long contemplated a new stadium, and had taken an option on property at 161st Street and River Avenue in the Bronx. Yankee Stadium was completed in time for the home opener on April 18, 1923, at which Ruth hit the first home run in what was quickly dubbed "the House that Ruth Built". The ballpark was designed with Ruth in mind: although the venue's left-field fence was further from home plate than at the Polo Grounds, Yankee Stadium's right-field fence was closer, making home runs easier to hit for left-handed batters. To spare Ruth's eyes, right field—his defensive position—was not pointed into the afternoon sun, as was traditional; left fielder Meusel soon developed headaches from squinting toward home plate.]]
In 1924, the Yankees were favored to become the first team to win four consecutive pennants. Plagued by injuries, they found themselves in a battle with the Senators. Although the Yankees won 18 of 22 at one point in September, the Senators beat out the Yankees by two games. Ruth hit .378, winning his only AL batting title, with a league-leading 46 home runs.
Ruth did not look like an athlete; he was described as "toothpicks attached to a piano", with a big upper body but thin wrists and legs. Ruth had kept up his efforts to stay in shape in 1923 and 1924, but by early 1925 weighed nearly . His annual visit to Hot Springs, Arkansas, where he exercised and took saunas early in the year, did him no good as he spent much of the time carousing in the resort town. He became ill while there, and relapsed during spring training. Ruth collapsed in Asheville, North Carolina, as the team journeyed north. He was put on a train for New York, where he was briefly hospitalized. A rumor circulated that he had died, prompting British newspapers to print a premature obituary. In New York, Ruth collapsed again and was found unconscious in his hotel bathroom. He was taken to a hospital where he had multiple convulsions. After sportswriter W. O. McGeehan wrote that Ruth's illness was due to binging on hot dogs and soda pop before a game, it became known as "the bellyache heard 'round the world". However, the exact cause of his ailment has never been confirmed and remains a mystery. Glenn Stout, in his history of the Yankees, writes that the Ruth legend is "still one of the most sheltered in sports"; he suggests that alcohol was at the root of Ruth's illness, pointing to the fact that Ruth remained six weeks at St. Vincent's Hospital but was allowed to leave, under supervision, for workouts with the team for part of that time. He concludes that the hospitalization was behavior-related. Playing just 98 games, Ruth had his worst season as a Yankee; he finished with a .290 average and 25 home runs. The Yankees finished next to last in the AL with a 69–85 record, their last season with a losing record until 1965.Murderers' Row (1926–1928)
in this First National silent production Babe Comes Home. This film is now lost. ]]
Ruth spent part of the offseason of 1925–26 working out at Artie McGovern's gym, where he got back into shape. Barrow and Huggins had rebuilt the team and surrounded the veteran core with good young players like Tony Lazzeri and Lou Gehrig, but the Yankees were not expected to win the pennant.
Ruth returned to his normal production during 1926, when he batted .372 with 47 home runs and 146 RBIs. Although the Yankees won the opener in New York, St. Louis took Games Two and Three. In Game Four, Ruth hit three home runs—the first time this had been done in a World Series game—to lead the Yankees to victory. In the fifth game, Ruth caught a ball as he crashed into the fence. The play was described by baseball writers as a defensive gem. New York took that game, but Grover Cleveland Alexander won Game Six for St. Louis to tie the Series at three games each, then got very drunk. He was nevertheless inserted into Game Seven in the seventh inning and shut down the Yankees to win the game, 3–2, and win the Series. Ruth had hit his fourth home run of the Series earlier in the game and was the only Yankee to reach base off Alexander; he walked in the ninth inning before being thrown out to end the game when he attempted to steal second base. Although Ruth's attempt to steal second is often deemed a baserunning blunder, Creamer pointed out that the Yankees' chances of tying the game would have been greatly improved with a runner in scoring position.
The 1926 World Series was also known for Ruth's promise to Johnny Sylvester, a hospitalized 11-year-old boy. Ruth promised the child that he would hit a home run on his behalf. Sylvester had been injured in a fall from a horse, and a friend of Sylvester's father gave the boy two autographed baseballs signed by Yankees and Cardinals. The friend relayed a promise from Ruth (who did not know the boy) that he would hit a home run for him. After the Series, Ruth visited the boy in the hospital. When the matter became public, the press greatly inflated it, and by some accounts, Ruth allegedly saved the boy's life by visiting him, emotionally promising to hit a home run, and doing so. Ruth's 1926 salary of $52,000 was far more than any other baseball player, but he made at least twice as much in other income, including $100,000 from 12 weeks of vaudeville.
The 1927 New York Yankees team is considered one of the greatest squads to ever take the field. Known as Murderers' Row because of the power of its lineup, the team clinched first place on Labor Day, won a then-AL-record 110 games and took the AL pennant by 19 games. There was no suspense in the pennant race, and the nation turned its attention to Ruth's pursuit of his own single-season home run record of 59 round trippers. Ruth was not alone in this chase. Teammate Lou Gehrig proved to be a slugger who was capable of challenging Ruth for his home run crown; he tied Ruth with 24 home runs late in June. Through July and August, the dynamic duo was never separated by more than two home runs. Gehrig took the lead, 45–44, in the first game of a doubleheader at Fenway Park early in September; Ruth responded with two blasts of his own to take the lead, as it proved permanently—Gehrig finished with 47. Even so, as of September 6, Ruth was still several games off his 1921 pace, and going into the final series against the Senators, had only 57. He hit two in the first game of the series, including one off of Paul Hopkins, facing his first major league batter, to tie the record. The following day, September 30, he broke it with his 60th homer, in the eighth inning off Tom Zachary to break a 2–2 tie. "Sixty! Let's see some son of a bitch try to top that one", Ruth exulted after the game. In addition to his career-high 60 home runs, Ruth batted .356, drove in 164 runs and slugged .772. According to Appel, "The 1927 New York Yankees. Even today, the words inspire awe... all baseball success is measured against the '27 team."
, Tris Speaker, Ty Cobb, and Ruth, 1928]]
The following season started off well for the Yankees, who led the league in the early going. But the Yankees were plagued by injuries, erratic pitching and inconsistent play. The Philadelphia Athletics, rebuilding after some lean years, erased the Yankees' big lead and even took over first place briefly in early September. The Yankees, however, regained first place when they beat the Athletics three out of four games in a pivotal series at Yankee Stadium later that month, and clinched the pennant in the final weekend of the season. Ruth's play in 1928 mirrored his team's performance. He got off to a hot start and on August 1, he had 42 home runs. This put him ahead of his 60 home run pace from the previous season. He then slumped for the latter part of the season, and he hit just twelve home runs in the last two months. Ruth's batting average also fell to .323, well below his career average. Nevertheless, he ended the season with 54 home runs. The Yankees swept the favored Cardinals in four games in the World Series, with Ruth batting .625 and hitting three home runs in Game Four, including one off Alexander."Called shot" and final Yankee years (1929–1934)
Before the 1929 season, Ruppert (who had bought out Huston in 1923) announced that the Yankees would wear uniform numbers to allow fans at cavernous Yankee Stadium to easily identify the players. The Cardinals and Indians had each experimented with uniform numbers; the Yankees were the first to use them on both home and away uniforms. Ruth batted third and was given number 3. According to a long-standing baseball legend, the Yankees adopted their now-iconic pinstriped uniforms in hopes of making Ruth look slimmer. In truth, though, they had been wearing pinstripes since 1915.
Although the Yankees started well, the Athletics soon proved they were the better team in 1929, splitting two series with the Yankees in the first month of the season, then taking advantage of a Yankee losing streak in mid-May to gain first place. Although Ruth performed well, the Yankees were not able to catch the Athletics—Connie Mack had built another great team. Tragedy struck the Yankees late in the year as manager Huggins died at 51 of erysipelas, a bacterial skin infection, on September 25, only ten days after he had last directed the team. Despite their past differences, Ruth praised Huggins and described him as a "great guy". The Yankees finished second, 18 games behind the Athletics. Ruth had politicked for the job of player-manager, but Ruppert and Barrow never seriously considered him for the position. Stout deemed this the first hint Ruth would have no future with the Yankees once he retired as a player. Shawkey, a former Yankees player and teammate of Ruth, would prove unable to command Ruth's respect.
On January 7, 1930, salary negotiations between the Yankees and Ruth quickly broke down. Having just concluded a three-year contract at an annual salary of $70,000, Ruth promptly rejected both the Yankees' initial proposal of $70,000 for one year and their 'final' offer of two years at seventy-five—the latter figure equaling the annual salary of then US President Herbert Hoover; instead, Ruth demanded at least $85,000 and three years. When asked why he thought he was "worth more than the President of the United States," Ruth responded: "Say, if I hadn't been sick last summer, I'd have broken hell out of that home run record! Besides, the President gets a four-year contract. I'm only asking for three." Ruth's salary was more than 2.4 times greater than the next-highest salary that season, a record margin .
In 1930, Ruth hit .359 with 49 home runs (his best in his years after 1928) and 153 RBIs, and pitched his first game in nine years, a complete game victory.
McCarthy was a disciplinarian, but chose not to interfere with Ruth, who did not seek conflict with the manager. The team improved in 1931, but was no match for the Athletics, who won 107 games, games in front of the Yankees. Ruth, for his part, hit .373, with 46 home runs and 163 RBIs. He had 31 doubles, his most since 1924.
The Yankees faced the Cubs, McCarthy's former team, in the 1932 World Series. There was bad blood between the two teams as the Yankees resented the Cubs only awarding half a World Series share to Mark Koenig, a former Yankee. The games at Yankee Stadium had not been sellouts; both were won by the home team, with Ruth collecting two singles, but scoring four runs as he was walked four times by the Cubs pitchers. In Chicago, Ruth was resentful at the hostile crowds that met the Yankees' train and jeered them at the hotel. The crowd for Game Three included New York Governor Franklin D. Roosevelt, the Democratic candidate for president, who sat with Chicago Mayor Anton Cermak. Many in the crowd threw lemons at Ruth, a sign of derision, and others (as well as the Cubs themselves) shouted abuse at Ruth and other Yankees. They were briefly silenced when Ruth hit a three-run home run off Charlie Root in the first inning, but soon revived, and the Cubs tied the score at 4–4 in the fourth inning, partly due to Ruth's fielding error in the outfield. When Ruth came to the plate in the top of the fifth, the Chicago crowd and players, led by pitcher Guy Bush, were screaming insults at Ruth. With the count at two balls and one strike, Ruth gestured, possibly in the direction of center field, and after the next pitch (a strike), may have pointed there with one hand. Ruth hit the fifth pitch over the center field fence; estimates were that it traveled nearly . Whether or not Ruth intended to indicate where he planned to (and did) hit the ball (Charlie Devens, who, in 1999, was interviewed as Ruth's surviving teammate in that game, did not think so), the incident has gone down in legend as Babe Ruth's called shot. The Yankees won Game Three, and the following day clinched the Series with another victory. During that game, Bush hit Ruth on the arm with a pitch, causing words to be exchanged and provoking a game-winning Yankee rally.
Ruth remained productive in 1933. He batted .301, with 34 home runs, 103 RBIs, and a league-leading 114 walks, During the final game of the 1933 season, as a publicity stunt organized by his team, Ruth was called upon and pitched a complete game victory against the Red Sox, his final appearance as a pitcher. Despite unremarkable pitching numbers, Ruth had a 5–0 record in five games for the Yankees, raising his career totals to 94–46. He accepted a pay cut to $35,000 from Ruppert, but he was still the highest-paid player in the major leagues. He could still handle a bat, recording a .288 batting average with 22 home runs, However, Reisler described these statistics as "merely mortal" by Ruth's previous standards. Ruth was selected to the AL All-Star team for the second consecutive year, even though he was in the twilight of his career. During the game, New York Giants pitcher Carl Hubbell struck out Ruth and four other future Hall-of-Famers consecutively. The Yankees finished second again, seven games behind the Tigers.Boston Braves (1935)
<!-- Deleted image removed: . This was his last year as a player.]] -->
By this time, Ruth knew he was nearly finished as a player. He desired to remain in baseball as a manager. He was often spoken of as a possible candidate as managerial jobs opened up, but in 1932, when he was mentioned as a contender for the Red Sox position, Ruth stated that he was not yet ready to leave the field. There were rumors that Ruth was a likely candidate each time when the Cleveland Indians, Cincinnati Reds, and Detroit Tigers were looking for a manager, but nothing came of them.
Just before the 1934 season, Ruppert offered to make Ruth the manager of the Yankees' top minor-league team, the Newark Bears, but he was talked out of it by his wife, Claire, and his business manager, Christy Walsh.
Early in the 1934 season, Ruth openly campaigned to become the Yankees manager. However, the Yankee job was never a serious possibility. Ruppert always supported McCarthy, who would remain in his position for another 12 seasons. The relationship between Ruth and McCarthy had been lukewarm at best, and Ruth's managerial ambitions further chilled their interpersonal relations. When the time came, Ruppert wanted Ruth to leave the team without drama or hard feelings.
Also during the offseason, Ruppert had been sounding out the other clubs in hopes of finding one that would be willing to take Ruth as a manager and/or a player. However, the only serious offer came from Athletics owner-manager Connie Mack, who gave some thought to stepping down as manager in favor of Ruth. However, Mack later dropped the idea, saying that Ruth's wife would be running the team in a month if Ruth ever took over.
While the barnstorming tour was underway, Ruppert began negotiating with Boston Braves owner Judge Emil Fuchs, who wanted Ruth as a gate attraction. The Braves had enjoyed modest recent success, finishing fourth in the National League in both 1933 and 1934, but the team drew poorly at the box office. Unable to afford the rent at Braves Field, Fuchs had considered holding dog races there when the Braves were not at home, only to be turned down by Landis. After a series of phone calls, letters, and meetings, the Yankees traded Ruth to the Braves on February 26, 1935. Ruppert had stated that he would not release Ruth to go to another team as a full-time player. For this reason, it was announced that Ruth would become a team vice president and would be consulted on all club transactions, in addition to playing. He was also made assistant manager to Braves skipper Bill McKechnie. In a long letter to Ruth a few days before the press conference, Fuchs promised Ruth a share in the Braves' profits, with the possibility of becoming co-owner of the team. Fuchs also raised the possibility of Ruth succeeding McKechnie as manager, perhaps as early as 1936. Ruppert called the deal "the greatest opportunity Ruth ever had".
There was considerable attention as Ruth reported for spring training. He did not hit his first home run of the spring until after the team had left Florida, and was beginning the road north in Savannah. He hit two in an exhibition game against the Bears. Amid much press attention, Ruth played his first home game in Boston in over 16 years. Before an opening-day crowd of over 25,000, including five of New England's six state governors, Ruth accounted for all the Braves' runs in a 4–2 win over the New York Giants, hitting a two-run home run, singling to drive in a third run and later in the inning scoring the fourth. Although age and weight had slowed him, he made a running catch in left field that sportswriters deemed the defensive highlight of the game.
Ruth had two hits in the second game of the season, but it quickly went downhill both for him and the Braves from there. The season soon settled down to a routine of Ruth performing poorly on the few occasions he even played at all. As April passed into May, Ruth's physical deterioration became even more pronounced. While he remained productive at the plate early on, he could do little else. His conditioning had become so poor that he could barely trot around the bases. He made so many errors that three Braves pitchers told McKechnie they would not take the mound if he was in the lineup. Before long, Ruth stopped hitting as well. He grew increasingly annoyed that McKechnie ignored most of his advice. McKechnie later said that Ruth's presence made enforcing discipline nearly impossible.
Ruth soon realized that Fuchs had deceived him, and had no intention of making him manager or giving him any significant off-field duties. He later said his only duties as vice president consisted of making public appearances and autographing tickets. Ruth also found out that far from giving him a share of the profits, Fuchs wanted him to invest some of his money in the team in a last-ditch effort to improve its balance sheet. As it turned out, Fuchs and Ruppert had both known all along that Ruth's non-playing positions were meaningless.
By the end of the first month of the season, Ruth concluded he was finished even as a part-time player. As early as May 12, he asked Fuchs to let him retire.
Ruth played in the third game of the Pittsburgh series on May 25, 1935, and added one more tale to his playing legend. Ruth went 4-for-4, including three home runs, though the Braves lost the game 11–7. The last two were off Ruth's old Cubs nemesis, Guy Bush. The final home run, both of the game and of Ruth's career, sailed out of the park over the right field upper deck–the first time anyone had hit a fair ball completely out of Forbes Field. Ruth was urged to make this his last game, but he had given his word to Fuchs and played in Cincinnati and Philadelphia. The first game of the doubleheader in Philadelphia—the Braves lost both—was his final major league appearance. Ruth retired on June 2 after an argument with Fuchs. He finished 1935 with a .181 average—easily his worst as a full-time position player—and the final six of his 714 home runs. The Braves, 10–27 when Ruth left, finished 38–115, at .248 the worst winning percentage in modern National League history. Insolvent like his team, Fuchs gave up control of the Braves before the end of the season; the National League took over the franchise at the end of the year.
Retirement
and Ruth in the 1942 film The Pride of the Yankees]]
Although Fuchs had given Ruth his unconditional release, no major league team expressed an interest in hiring him in any capacity. Ruth still hoped to be hired as a manager if he could not play anymore, but only one managerial position, Cleveland, became available between Ruth's retirement and the end of the 1937 season. Asked if he had considered Ruth for the job, Indians owner Alva Bradley replied negatively.
Ruth played much golf and in a few exhibition baseball games, where he demonstrated a continuing ability to draw large crowds. This appeal contributed to the Dodgers hiring him as first base coach in 1938. When Ruth was hired, Brooklyn general manager Larry MacPhail made it clear that Ruth would not be considered for the manager's job if, as expected, Burleigh Grimes retired at the end of the season. Although much was said about what Ruth could teach the younger players, in practice, his duties were to appear on the field in uniform and encourage base runners—he was not called upon to relay signs. In August, shortly before the baseball rosters expanded, Ruth sought an opportunity to return as an active player in a pinch hitting role. Ruth often took batting practice before games and felt that he could take on the limited role. Grimes denied his request, citing Ruth's poor vision in his right eye, his inability to run the bases, and the risk of an injury to Ruth.
Ruth got along well with everyone except team captain Leo Durocher, who was hired as Grimes' replacement at season's end. Ruth then left his job as a first base coach and would never again work in any capacity in the game of baseball.
On July 4, 1939, Ruth spoke on Lou Gehrig Appreciation Day at Yankee Stadium as members of the 1927 Yankees and a sellout crowd turned out to honor the first baseman, who was forced into premature retirement by ALS, which would kill him two years later. The next week, Ruth went to Cooperstown, New York, for the formal opening of the Baseball Hall of Fame. Three years earlier, he was one of the first five players elected to the hall. As radio broadcasts of baseball games became popular, Ruth sought a job in that field, arguing that his celebrity and knowledge of baseball would assure large audiences, but he received no offers. During World War II, he made many personal appearances to advance the war effort, including his last appearance as a player at Yankee Stadium, in a 1943 exhibition for the Army-Navy Relief Fund. He hit a long fly ball off Walter Johnson; the blast left the field, curving foul, but Ruth circled the bases anyway. In 1946, he made a final effort to gain a job in baseball when he contacted new Yankees boss MacPhail, but he was sent a rejection letter. In 1999, Ruth's granddaughter, Linda Tosetti, and his daughter, Julia Ruth Stevens, said that Babe's inability to land a managerial role with the Yankees caused him to feel hurt and slump into a severe depression. In retirement, he became one of the first celebrity golfers participating in charity tournaments, including one where he was pitted against Ty Cobb.Personal lifeRuth met Helen Woodford, by some accounts, in a coffee shop in Boston, where she was a waitress. They married as teenagers on October 17, 1914. Although Ruth later claimed to have been married in Elkton, Maryland, records show that they were married at St. Paul's Catholic Church in Ellicott City. They adopted a daughter, Dorothy, in 1921. Ruth and Helen separated around 1925 reportedly because of Ruth's repeated infidelities and neglect. They appeared in public as a couple for the last time during the 1926 World Series. Helen died in January 1929 at age 31 in a fire in a house in Watertown, Massachusetts owned by Edward Kinder, a dentist with whom she had been living as "Mrs. Kinder". In her book, My Dad, the Babe, Dorothy claimed that she was Ruth's biological child by a mistress named Juanita Jennings. In 1980, Juanita, who was at the time very ill, admitted this to Dorothy and Dorothy's sister, Julia. It was the second and final marriage for both parties. Claire, unlike Helen, was well-travelled and educated, and put structure into Ruth's life, like Miller Huggins did for him on the field.
Although Ruth was married throughout most of his baseball career, when team co-owner Tillinghast 'Cap' Huston asked him to tone down his lifestyle, Ruth replied, "I'll promise to go easier on drinking and to get to bed earlier, but not for you, fifty thousand dollars, or two-hundred and fifty thousand dollars will I give up women. They're too much fun." A detective that the Yankees hired to follow him one night in Chicago reported that Ruth had been with six women. Ping Bodie said that he was not Ruth's roommate while traveling; "I room with his suitcase". Before the start of the 1922 season, Ruth had signed a three-year contract at $52,000 per year with an option to renew for two additional years. His performance during the 1922 season had been disappointing, attributed in part to his drinking and late-night hours. After the end of the 1922 season, he was asked to sign a contract addendum with a morals clause. Ruth and Ruppert signed it on November 11, 1922. It called for Ruth to abstain entirely from the use of intoxicating liquors, and to not stay up later than 1:00 a.m. during the training and playing season without permission of the manager. Ruth was also enjoined from any action or misbehavior that would compromise his ability to play baseball.
Ruth was a self described Democrat. In 1928, Ruth campaigned for Democratic U.S. presidential nominee Al Smith.
Cancer and death (1946–1948)
As early as the war years, doctors had cautioned Ruth to take better care of his health, and he grudgingly followed their advice, limiting his drinking and not going on a proposed trip to support the troops in the South Pacific. In 1946, Ruth began experiencing severe pain over his left eye and had difficulty swallowing. In November 1946, Ruth entered French Hospital in New York for tests, which revealed that he had an inoperable malignant tumor at the base of his skull and in his neck. The malady was a lesion known as nasopharyngeal carcinoma, or lymphoepithelioma. A physician who reviewed Ruth's autopsy in 1998 concluded that Ruth's lifelong use of tobacco "probably played a part" in his cancer. His name and fame gave him access to experimental treatments, and he was one of the first cancer patients to receive both drugs and radiation treatment simultaneously. Having lost , he was discharged from the hospital in February and went to Florida to recuperate. He returned to New York and Yankee Stadium after the season started. The new commissioner, Happy Chandler (Judge Landis had died in 1944), proclaimed April 27, 1947, Babe Ruth Day around the major leagues, with the most significant observance to be at Yankee Stadium. A number of teammates and others spoke in honor of Ruth, who briefly addressed the crowd of almost 60,000. By then, his voice was a soft whisper with a very low, raspy tone.
The improvement was only a temporary remission, and by late 1947, Ruth was unable to help with the writing of his autobiography, The Babe Ruth Story, which was almost entirely ghostwritten. In and out of the hospital in Manhattan, he left for Florida in February 1948, doing what activities he could. After six weeks he returned to New York to appear at a book-signing party. He also traveled to California to witness the filming of the movie based on the book.
's Pulitzer Prize–winning photo of Ruth titled Babe Ruth Bows Out at Yankee Stadium prior to the Yankees' retirement of his jersey number.]]
On June 5, 1948, a "gaunt and hollowed-out" Ruth visited Yale University to donate a manuscript of The Babe Ruth Story to its library. At Yale, he met with future president George H. W. Bush, who was the captain of the Yale baseball team. On June 13, Ruth visited Yankee Stadium for the final time in his life, appearing at the 25th-anniversary celebrations of "The House that Ruth Built". By this time he had lost much weight and had difficulty walking. Introduced along with his surviving teammates from 1923, Ruth used a bat as a cane. Nat Fein's photo of Ruth taken from behind, standing near home plate and facing "Ruthville" (right field) became one of baseball's most famous and widely circulated photographs, and won the Pulitzer Prize.
Ruth made one final trip on behalf of American Legion Baseball. He then entered Memorial Hospital, where he would die. He was never told he had cancer; however, before his death, he surmised it. He was able to leave the hospital for a few short trips, including a final visit to Baltimore. On July 26, 1948, Ruth left the hospital to attend the premiere of the film The Babe Ruth Story. Shortly thereafter, he returned to the hospital for the final time. He was barely able to speak. Ruth's condition gradually grew worse, and only a few visitors were permitted to see him, one of whom was National League president and future Commissioner of Baseball Ford C. Frick. "Ruth was so thin it was unbelievable. He had been such a big man and his arms were just skinny little bones, and his face was so haggard", Frick said years later.
Thousands of New Yorkers, including many children, stood vigil outside the hospital during Ruth's final days. On August 16, 1948, at 8:01 p.m., Ruth died in his sleep at the age of 53. His funeral service took place over three days. His open casket was placed on display in the rotunda of Yankee Stadium, where it remained for two days; 77,000 people filed past to pay him tribute. His Requiem Mass was celebrated by Francis Cardinal Spellman at St. Patrick's Cathedral; a crowd estimated at 75,000 waited outside. Ruth is buried with his second wife, Claire, on a hillside in Section 25 at the Gate of Heaven Cemetery in Hawthorne, New York.Memorial and museumOn April 19, 1949, the Yankees unveiled a granite monument in Ruth's honor in center field of Yankee Stadium. The monument was located in the field of play next to a flagpole and similar tributes to Huggins and Gehrig until the stadium was remodeled from 1974 to 1975, which resulted in the outfield fences moving inward and enclosing the monuments from the playing field. This area was known thereafter as Monument Park. Yankee Stadium, "the House that Ruth Built", was replaced after the 2008 season with a new Yankee Stadium across the street from the old one; Monument Park was subsequently moved to the new venue behind the center field fence. Ruth's uniform number 3 has been retired by the Yankees, and he is one of five Yankees players or managers to have a granite monument within the stadium.
In 1974, Ruth's birthplace in Baltimore was renovated and opened to the public as the Babe Ruth Birthplace and Museum. The museum houses a collection of artifacts from Ruth's life, including some rare baseball cards and the earliest known signature of Ruth, from when he was still pitching in the schoolyard. Ruth's widow, Claire, his two daughters, Dorothy and Julia, and his sister, Mamie, helped select and install exhibits for the museum.ImpactRuth was the first baseball star to be the subject of overwhelming public adulation. Baseball had been known for star players such as Ty Cobb and "Shoeless Joe" Jackson, but both men had uneasy relations with fans. In Cobb's case, the incidents were sometimes marked by violence. Ruth's biographers agreed that he benefited from the timing of his ascension to "Home Run King". The country had been hit hard by both the war and the 1918 flu pandemic and longed for something to help put these traumas behind it. Ruth also resonated in a country which felt, in the aftermath of the war, that it took second place to no one. Montville argued that Ruth was a larger-than-life figure who was capable of unprecedented athletic feats in the nation's largest city. Ruth became an icon of the social changes that marked the early 1920s. In his history of the Yankees, Glenn Stout writes that "Ruth was New York incarnate—uncouth and raw, flamboyant and flashy, oversized, out of scale, and absolutely unstoppable".
During his lifetime, Ruth became a symbol of the United States. During World War II, Japanese soldiers yelled in English, "To hell with Babe Ruth", to anger American soldiers. Ruth replied that he hoped "every Jap that mention[ed] my name gets shot". Creamer recorded that "Babe Ruth transcended sport and moved far beyond the artificial limits of baselines and outfield fences and sports pages". Wagenheim stated, "He appealed to a deeply rooted American yearning for the definitive climax: clean, quick, unarguable." According to Glenn Stout, "Ruth's home runs were [an] exalted, uplifting experience that meant more to fans than any runs they were responsible for. A Babe Ruth home run was an event unto itself, one that meant anything was possible." According to sportswriter W. A. Phelon, after the 1920 season, Ruth's breakout performance that season and the response in excitement and attendance, "settled, for all time to come, that the American public is nuttier over the Home Run than the Clever Fielding or the Hitless Pitching. Viva el Home Run and two times viva Babe Ruth, exponent of the home run, and overshadowing star." Bill James states, "When the owners discovered that the fans liked to see home runs, and when the foundations of the games were simultaneously imperiled by disgrace [in the Black Sox Scandal], then there was no turning back." While a few, such as McGraw and Cobb, decried the passing of the old-style play, teams quickly began to seek and develop sluggers.
According to sportswriter Grantland Rice, only two sports figures of the 1920s approached Ruth in popularity—boxer Jack Dempsey and racehorse Man o' War. One of the factors that contributed to Ruth's broad appeal was the uncertainty about his family and early life. Ruth appeared to exemplify the American success story, that even an uneducated, unsophisticated youth, without any family wealth or connections, can do something better than anyone else in the world. Montville writes that "the fog [surrounding his childhood] will make him forever accessible, universal. He will be the patron saint of American possibility." Similarly, the fact that Ruth played in the pre-television era, when a relatively small portion of his fans had the opportunity to see him play, allowed his legend to grow through word of mouth and the hyperbole of sports reporters. Reisler states that recent sluggers who surpassed Ruth's 60-home run mark, such as Mark McGwire and Barry Bonds, generated much less excitement than when Ruth repeatedly broke the single-season home run record in the 1920s. Ruth dominated a relatively small sports world, while Americans of the present era have many sports available to watch.
Legacy
in 1955 with Claire Ruth, his widow, present.]]
Creamer describes Ruth as "a unique figure in the social history of the United States". A dominant figure in a field, whether within or outside sports, is often referred to as "the Babe Ruth" of that field. He was the first athlete to make more money from endorsements and other off-the-field activities than from his sport.
In 2006, Montville stated that more books have been written about Ruth than any other member of the Baseball Hall of Fame. At least five of these books (including Creamer's and Wagenheim's) were written in 1973 and 1974 to capitalize on the increase in public interest in Ruth as Hank Aaron approached his career home run mark, which he broke on April 8, 1974. Montville suggested that Ruth is probably even more popular today than he was then. The long ball era that Ruth started continues in baseball: owners build ballparks to encourage home runs.
In various surveys and rankings, Ruth has been named the greatest baseball player of all time. In 1998, The Sporting News ranked him number one on the list of "Baseball's 100 Greatest Players". In 1999, baseball fans named Ruth to the Major League Baseball All-Century Team. He was named baseball's Greatest Player Ever in a ballot commemorating the 100th anniversary of professional baseball in 1969. The Associated Press reported in 1993 that Muhammad Ali was tied with Babe Ruth as the most recognized athlete in America. In a 1999 ESPN poll, he was ranked as the second-greatest U.S. athlete of the century, behind Michael Jordan. In 1983, the United States Postal Service honored Ruth with a twenty-cent stamp. In 2022, The Sporting News named Ruth on their "New York Mount Rushmore of Sports".
Several of the most expensive items of sports memorabilia and baseball memorabilia ever sold at auction are associated with Ruth. The jersey Ruth wore when hitting his "called shot" home run in the 1932 World Series sold in 2024 for a record $24 million. A Ruth's 1920 Yankees jersey that sold for $4.4 million in 2012 (equivalent to $ million in ) was, for several years, one of the most expensive piece of sports memorabilia ever sold. The bat with which he hit the first home run at Yankee Stadium is in The Guinness Book of World Records as the most expensive baseball bat sold at auction, having fetched $1.265 million on December 2, 2004 (equivalent to $ million in ). Other bats used by Ruth sold for $1.6 million in 2022 and $1.85 million in 2023. A hat of Ruth's from the 1934 season set a record for a baseball cap when David Wells sold it at auction for $537 thousand in 2012. In 2017, Charlie Sheen sold Ruth's 1927 World Series ring for $2 million, a record for a championship ring.
(2014)]]
One lasting legacy of the craze over Ruth may be the Baby Ruth candy bar. The original company to market the confectionery, the Curtis Candy Company, maintained that the bar was named after Ruth Cleveland, daughter of former president Grover Cleveland. She died in 1904 and the bar was first marketed in 1921, at the height of the craze over Ruth. He later sought to market candy bearing his name; he was refused a trademark because of the Baby Ruth bar. The Ruth estate licensed his likeness for use in an advertising campaign for Baby Ruth in 1995. In 2005, Baby Ruth became the official candy bar of Major League Baseball.
In 2018, Ruth was posthumously awarded the Presidential Medal of Freedom by President Donald Trump; his grandson Tom Stevens accepted the award on his behalf. Montville describes the continuing relevance of Babe Ruth in American culture:
<!-- Please do not add any text here -->On August 25, 2024, Babe Ruth's called shot jersey was sold via Heritage Auctions for a record $24.12 million, making it the most expensive sports collectible in history.
See also
* List of career achievements by Babe Ruth
* List of most valuable celebrity memorabilia
* Babe Ruth Award
* Babe Ruth Home Run Award
* Babe Ruth League
* Babe Ruth Birthplace and Museum
* DHL Hometown Heroes
* List of Major League Baseball home run records
* List of Major League Baseball runs batted in records
* The Year Babe Ruth Hit 104 Home Runs
* ''Babe's Dream'' statue in Baltimore, Maryland
Notes
References
Book sources
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Further reading
Books
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* [http://www.baberuth.com/ Official website]
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Category:1895 births
Category:1948 deaths
Category:20th-century American sportsmen
Category:American League All-Stars
Category:American League batting champions
Category:American League ERA champions
Category:American League home run champions
Category:American League RBI champions
Category:American people of German descent
Category:American people of Prussian descent
Category:American vaudeville performers
Category:Baltimore Orioles (International League) players
Category:Baseball players from Baltimore
Category:Boston Braves players
Category:Boston Red Sox players
Category:Brooklyn Dodgers coaches
Category:Burials at Gate of Heaven Cemetery (Hawthorne, New York)
Category:Catholics from Maryland
Category:Deaths from cancer in New York (state)
Category:Deaths from nasopharynx cancer
Category:Major League Baseball first base coaches
Category:Major League Baseball left fielders
Category:Major League Baseball pitchers
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Category:Major League Baseball right fielders
Category:National Baseball Hall of Fame inductees
Category:New York Yankees players
Category:Presidential Medal of Freedom recipients
Category:Providence Grays (minor league) players
Babe | https://en.wikipedia.org/wiki/Babe_Ruth | 2025-04-05T18:26:43.170107 |
4177 | Barge | in London, England, UK]]
, United States. It is on a deck barge.]]
A barge is typically a flat-bottomed vessel which does not have its own means of mechanical propulsion. Original use was on inland waterways, while modern use is on both inland and marine<!-- typically, heavily ballasted with water ballast for any marine legs of a journey --> water environments. The first modern barges were pulled by tugs, but on inland waterways, most are pushed by pusher boats, or other vessels. The term barge has a rich history, and therefore there are many types of barges.
History of the barge
Etymology
Barge is attested from 1300, from Old French barge, from Vulgar Latin barga. The word originally could refer to any small boat; the modern meaning arose around 1480. Bark "small ship" is attested from 1420, from Old French barque, from Vulgar Latin barca (400 AD). A more precise meaning (see Barque)) arose in the 17th century and often takes the French spelling for disambiguation. Both are probably derived from the Latin barica, from Greek baris "Egyptian boat", from Coptic bari "small boat", hieroglyphic Egyptian <small><hiero>D58-G29-M17-M17-D21-P1</hiero></small> and similar ba-y-r for "basket-shaped boat". By extension, the term "embark" literally means to board the kind of boat called a "barque". British river barges 18th century
]]
In Great Britain, a merchant barge was originally a flat bottomed merchant vessel for use on navigable rivers. Most of these barges had sails. For traffic on the River Severn, the barge was described thus: "The lesser sort are called barges and frigates, being from forty to sixty feet in length, having a single mast and square sail, and carrying from twenty to forty tons burthen." The larger vessels were called trows. On the River Irwell, there was reference to barges passing below Barton Aqueduct with their mast and sails standing. Early barges on the Thames were called west country barges.
19th century
In the United Kingdom, the word barge had many meanings by the 1890s, and these varied locally. On the Mersey, a barge was called a 'Flat', on the Thames a Lighter or barge, and on the Humber a 'Keel'. A Lighter had neither mast nor rigging. A keel did have a single mast with sails. Barge and lighter were used indiscriminately. A local distinction was that any flat that was not propelled by steam was a barge, although it might be a sailing flat.
The term Dumb barge was probably taken into use to end the confusion. The term Dumb barge surfaced in the early nineteenth century. It first denoted the use of a barge as a mooring platform in a fixed place. As it went up and down with the tides, it made a very convenient mooring place for steam vessels. Within a few decades, the term dumb barge evolved and came to mean: 'a vessel propelled by oars only'. By the 1890s, Dumb barge was still used only on the Thames.
, Belgium]]
By 1880, barges on British rivers and canals were often towed by steam tugboats. On the Thames, many dumb barges still relied on their poles, oars and the tide. Others dumb barges made use of about 50 tugboats to tow them to their destinations. While many coal barges were towed, many dumb barges that handled single parcels were not.
The Thames barge and Dutch barge today
On the British river system and larger waterways, the Thames sailing barge, and Dutch barge and unspecified other styles of barge, are still known as barges. The term Dutch barge is nowadays often used to refer to an accommodation ship, but originally refers to the slightly larger Dutch version of the Thames sailing barge.
British canals: narrowboats and widebeams
During the Industrial Revolution, a substantial network of canals was developed in Great Britain from 1750 onward. Whilst the largest of these could accommodate ocean-going vessels, e.g the later Manchester Ship Canal, a complex network of smaller canals was also developed. These smaller canals had locks, bridges and tunnels that were at minimum only wide at the waterline. On wider sections, standard barges and other vessels could trade, but full access to the network necessitated the parallel development of the narrowboat, which usually had a beam a couple of inches less to allow for clearance, e.g. . It was soon realized that the narrow locks were too limiting, and later locks were therefore doubled in width to . This led to the development of the widebeam canal boat. The narrowboat (one word) definition in the Oxford English Dictionary is:
The narrowboats were initially also known as barges, and the new canals were constructed with an adjacent towpath along which draft horses walked, towing the barges. These types of canal craft are so specific that on the British canal system the term 'barge' is no longer used to describe narrowboats and widebeams. Narrowboats and widebeams are still seen on canals, mostly for leisure cruising, and now engine-powered.
Crew and pole
The people who moved barges were known as lightermen. Poles are used on barges to fend off other nearby vessels or a wharf. These are often called 'pike poles'. The long pole used to maneuver or propel a barge has given rise to the saying "I wouldn't touch that [subject/thing] with a barge pole." The 19th century American barge In the United States a barge was not a sailing vessel by the end of the 19th century. Indeed, barges were often created by cutting down (razeeing) sailing vessels. In New York this was an accepted meaning of the term barge. The somewhat smaller scow was built as such, but the scow also had its sailing counterpart the sailing scow.
The modern barge
The iron barge
The innovation that led to the modern barge was the use of iron barges towed by a steam tugboat. These were first used to transport grain and other bulk products. From about 1840 to 1870 the towed iron barge was quickly introduced on the Rhine, Danube, Don, Dniester, and rivers in Egypt, India and Australia. Many of these barges were built in Great Britain.
Nowadays 'barge' generally refers to a dumb barge. In Europe, a Dumb barge is: An inland waterway transport freight vessel designed to be towed which does not have its own means of mechanical propulsion. In America, a barge is generally pushed. Modern use
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Herbert P. Brake of New York pushes a new barge east on the Erie Canal in Fairport, New York, United States]]
Barges are used today for transporting low-value bulk items, as the cost of hauling goods that way is very low and for larger project cargo, such as offshore wind turbine blades. Barges are also used for very heavy or bulky items; a typical American barge measures , and can carry up to about of cargo. According to the study, transporting cargo by barge produces 43% less greenhouse gas emissions than rail and more than 800% less than trucks. Environmentalists claim that in areas where barges, tugboats and towboats idle may produce more emissions like in the locks and dams of the Mississippi River.
Self-propelled barges may be used for traveling downstream or upstream in placid waters; they are operated as an unpowered barge, with the assistance of a tugboat, when traveling upstream in faster waters. Canal barges are usually made for the particular canal in which they will operate.
Unpowered vessels—barges—may be used for other purposes, such as large accommodation vessels, towed to where they are needed and stationed there as long as necessary. An example is the Bibby Stockholm.
Types
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* ("accommodation barge")
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In the United States, "deck barge" may refer to flat deck barges, work flats, fuel flats or flats. Smaller flats are used in shipyards to permit workers to access vessels in drydocks.
Gallery
<gallery class="center">
File:PénicheRecyclageFerrailles2008Deûle2.jpg|A self propelled barge carrying recycling material on Deûle channel in Lambersart, France
File:Barge with cars.jpg|Self-propelled car barge on the River Danube
File:Péniches sur le Canal du Midi.jpg|Barges near Toulouse, France
File:Andromeda (ship, 1958) Hannover Mittellandkanal 2006 by-RaBoe.jpg|Self-propelled barge Andromeda in canal at Hanover, Germany
File:Messina Karden Bug.jpg|Tank barge on the River Moselle, Germany
File:CrushedStoneBarge.jpg|Self-propelled barge carrying bulk crushed stone
File:IjmuidenBarge.jpg|Self-propelled barge in the port of IJmuiden, Netherlands
File:Pegasus barge being moved by Freedom Star and towboat American 2.jpg|Deck barge carrying the Space Shuttle external tank for STS-119 under tow to Port Canaveral, Florida, United States
File:Yangzhou-Modern-Grand-Canal-boats-3351.JPG|Self-propelled barges on the Grand Canal of China near Yangzhou, Jiangsu, China
File:CoalbargePittsburgh.JPG|Coal barges passing Heinz Field in Pittsburgh, Pennsylvania on the Ohio River
File:Suphannahongsa-docked.jpg|Royal Barge Suphannahong docked at Wat Arun pier, one of the Thai royal barges featured in the royal barge ceremony
File:Donna York.jpg|Towboat Donna York pushing barges of coal up the Ohio River at Louisville, Kentucky, United States
File:Ilia Efimovich Repin (1844-1930) - Volga Boatmen (1870-1873).jpg|Barge Haulers on the Volga (1870–73), by Ilya Repin
File:Kapal tongkang.jpg|Tongkang or car barge, landed on Ketapang Port, Banyuwangi, Indonesia
File:Slipway at portland.JPG|Slipway at Portland Harbour, Dorset, England, holding a split dump barge (on right)
File:Barge on Mosel by Kues (1).jpg|Barge on the river Mosel in Germany
File:Water Barge YW-59.jpg|US Navy Water Type B ship Barge, YW-59, launched August 29, 1941
File:YFN-958-Covered Lighter Barge-Non-Self-Propelled.jpg|YFN-958 a covered lighter barge, non-self-propelled. Built by Mare Island Navy Shipyard in 1944.
File:Concrete Barge - Erie Canal - Lock 13 - 3.jpg|Ferrocement Barge, US-102, in the Erie Canal
File:Ww2 concrete barge, National Waterway Museum.jpg|WW2 concrete barge at the National Waterways Museum, Ellesmere Port, Cheshire, UK
File:Sun Shining Into a Barge.jpg|Sun shining into the empty asphalt barge Endeavour while under repair in Muskegon, Michigan
File:Pelican Barge, Darling Harbor, Sydney, NSW, AU.jpg|A barge decorated to look like a pelican carrying a jumbotron display, Sydney
File:AWB Rajawali Natuna.jpg|Accommodation Work Barge
File:Prem Tinsulanonda International School barge in Bangkok.jpg|A restored teak barge used for educational programmes on the Chao Phraya river in Bangkok
</gallery>
See also
* American Waterways Operators
* Burlak
* Canal boat Ross Barlow
* Car float
* Chain boat
* Container on barge
* Dory
* Float (nautical)
* Hughes Mining Barge
* Lighter
* Mobro 4000
* Pusher (boat)
* Shallop
* Tub boat
* Type B ship
References
* |access-date=21 January 2020}}
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* }}
* }}
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Notes
External links
* [http://www.waterfrontmuseum.org/ Barge Lehigh Valley 79 at the Waterfront Museum], Brooklyn, New York, United States
* [http://www.waterscape.com/ Britain's Official guide to canals, rivers and lakes]
*
* [https://www.barges.org/ DBA The Barge Association]
* [http://www.americanwaterways.com/ The American Waterways Operators]
Category:Shipping | https://en.wikipedia.org/wiki/Barge | 2025-04-05T18:26:43.248322 |
4178 | Bill Schelter | |birth_place |death_date
|death_place |other_names
|alma_mater = McGill University
|education = Mathematics (Ph.D.)
|known_for = Austin Kyoto Common Lisp, GNU Common Lisp, GNU C compiler, Maxima
|employer = The University of Texas at Austin
|occupation = Computer scientist, Mathematics Professor
|awards |nationality American
}}
William Frederick Schelter (1947 – July 30, 2001) was a professor of mathematics at The University of Texas at Austin and a Lisp developer and programmer. Schelter is credited with the development of the GNU Common Lisp (GCL) implementation of Common Lisp and the GPL'd version of the computer algebra system Macsyma called Maxima. Schelter authored Austin Kyoto Common Lisp (AKCL) under contract with IBM. AKCL formed the foundation for Axiom, another computer algebra system. AKCL eventually became GNU Common Lisp. He is also credited with the first port of the GNU C compiler to the Intel 386 architecture, used in the original implementation of the Linux kernel.
Schelter obtained his Ph.D. at McGill University in 1972. His mathematical specialties were noncommutative ring theory and computational algebra and its applications, including automated theorem proving in geometry.
In the summer of 2001, age 54, he died suddenly of a heart attack while traveling in Russia.
References
* S. Chou and W. Schelter. Proving Geometry Theorems with Rewrite Rules Journal of Automated Reasoning, 1986.
External links
*
* [http://maxima.sourceforge.net/ Maxima homepage. Maxima is now available under GPL].
Category:1947 births
Category:2001 deaths
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4179 | British English | | agency = Oxford University
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British English (abbreviations: BrE, en-GB, and BE) is the set of varieties of the English language native to the United Kingdom, especially Great Britain. More narrowly, it can refer specifically to the English language in England, or, more broadly, to the collective dialects of English throughout the United Kingdom taken as a single umbrella variety, for instance additionally incorporating Scottish English, Welsh English, and Northern Irish English. Tom McArthur in the Oxford Guide to World English acknowledges that British English shares "all the ambiguities and tensions [with] the word 'British' and as a result can be used and interpreted in two ways, more broadly or more narrowly, within a range of blurring and ambiguity".
Variations exist in formal (both written and spoken) English in the United Kingdom. For example, the adjective wee is almost exclusively used in parts of Scotland, north-east England, Northern Ireland, Ireland, and occasionally Yorkshire, whereas the adjective little is predominant elsewhere. Nevertheless, there is a meaningful degree of uniformity in written English within the United Kingdom, and this could be described by the term British English. The forms of spoken English, however, vary considerably more than in most other areas of the world where English is spoken and so a uniform concept of British English is more difficult to apply to the spoken language.
Globally, countries that are former British colonies or members of the Commonwealth tend to follow British English, as is the case for English used by European Union institutions. In China, both British English and American English are taught. The UK government actively teaches and promotes English around the world and operates in over 100 countries. History Origins
English is a West Germanic language that originated from the Anglo-Frisian dialects brought to Britain by Germanic settlers from various parts of what is now northwest Germany and the northern Netherlands. The resident population at this time was generally speaking Common Brittonic—the insular variety of Continental Celtic, which was influenced by the Roman occupation. This group of languages (Welsh, Cornish, Cumbric) cohabited alongside English into the modern period, but due to their remoteness from the Germanic languages, influence on English was notably limited. However, the degree of influence remains debated, and it has recently been argued that its grammatical influence accounts for the substantial innovations noted between English and the other West Germanic languages.
Initially, Old English was a diverse group of dialects, reflecting the varied origins of the Anglo-Saxon kingdoms of England. One of these dialects, Late West Saxon, eventually came to dominate. The original Old English was then influenced by two waves of invasion: the first was by speakers of the Scandinavian branch of the Germanic family, who settled in parts of Britain in the eighth and ninth centuries; the second was the Normans in the 11th century, who spoke Old Norman and ultimately developed an English variety of this called Anglo-Norman. These two invasions caused English to become "mixed" to some degree (though it was never a truly mixed language in the strictest sense of the word; mixed languages arise from the cohabitation of speakers of different languages, who develop a hybrid tongue for basic communication).
The more idiomatic, concrete and descriptive English is, the more it is from Anglo-Saxon origins. The more intellectual and abstract English is, the more it contains Latin and French influences, e.g. swine (like the Germanic ) is the animal in the field bred by the occupied Anglo-Saxons and pork (like the French ) is the animal at the table eaten by the occupying Normans. Another example is the Anglo-Saxon meaning cow, and the French meaning beef.
Cohabitation with the Scandinavians resulted in a significant grammatical simplification and lexical enrichment of the Anglo-Frisian core of English; the later Norman occupation led to the grafting onto that Germanic core of a more elaborate layer of words from the Romance branch of the European languages. This Norman influence entered English largely through the courts and government. Thus, English developed into a "borrowing" language of great flexibility and with a huge vocabulary.
Dialects
Dialects and accents vary amongst the four countries of the United Kingdom, as well as within the countries themselves.
The major divisions are normally classified as English English (or English as spoken in England (which is itself broadly grouped into Southern English, West Country, East and West Midlands English and Northern English), Northern Irish English (in Northern Ireland), Welsh English (not to be confused with the Welsh language), and Scottish English (not to be confused with the Scots language or Scottish Gaelic). Each group includes a range of dialects, some markedly different from others. The various British dialects also differ in the words that they have borrowed from other languages.
Around the middle of the 15th century, there were points where within the 5 major dialects there were almost 500 ways to spell the word though.
Research
Following its last major survey of English Dialects (1949–1950), the University of Leeds has started work on a new project. In May 2007 the Arts and Humanities Research Council awarded a grant to Leeds to study British regional dialects.
The team are sifting through a large collection of examples of regional slang words and phrases turned up by the "Voices project" run by the BBC, in which they invited the public to send in examples of English still spoken throughout the country. The BBC Voices project also collected hundreds of news articles about how the British speak English from swearing through to items on language schools. This information will also be collated and analysed by Johnson's team both for content and for where it was reported. "Perhaps the most remarkable finding in the Voices study is that the English language is as diverse as ever, despite our increased mobility and constant exposure to other accents and dialects through TV and radio".}} English regional
Most people in Britain speak with a regional accent or dialect. However, about 2% of Britons speak with an accent called Received Pronunciation (also called "the King's English", "Oxford English" and "BBC English"), that is essentially region-less. It derives from a mixture of the Midlands and Southern dialects spoken in London in the early modern period. although the extent of its use is often somewhat exaggerated.
Londoners speak with a mixture of accents, depending on ethnicity, neighbourhood, class, age, upbringing, and sundry other factors. Estuary English has been gaining prominence in recent decades: it has some features of RP and some of Cockney. Immigrants to the UK in recent decades have brought many more languages to the country and particularly to London. Surveys started in 1979 by the Inner London Education Authority discovered over 125 languages being spoken domestically by the families of the inner city's schoolchildren. Notably Multicultural London English, a sociolect that emerged in the late 20th century spoken mainly by young, working-class people in multicultural parts of London.
Since the mass internal migration to Northamptonshire in the 1940s and given its position between several major accent regions, it has become a source of various accent developments. In Northampton the older accent has been influenced by overspill Londoners. There is an accent known locally as the Kettering accent, which is a transitional accent between the East Midlands and East Anglian. It is the last southern Midlands accent to use the broad "a" in words like bath or grass (i.e. or ). Conversely crass or plastic use a slender "a". A few miles northwest in Leicestershire the slender "a" becomes more widespread generally. In the town of Corby, north, one can find Corbyite which, unlike the Kettering accent, is largely influenced by the West Scottish accent. Features Phonological features characteristic of British English revolve around the pronunciation of the letter R, as well as the dental plosive T and some diphthongs specific to this dialect. T-stopping Once regarded as a Cockney feature, in a number of forms of spoken British English, has become commonly realised as a glottal stop when it is in the intervocalic position, in a process called T-glottalisation. National media, being based in London, have seen the glottal stop spreading more widely than it once was in word endings, not being heard as "no" and bottle of water being heard as "bole of waer". It is still stigmatised when used at the beginning and central positions, such as later, while often has all but regained . Other consonants subject to this usage in Cockney English are p, as in paer and k as in baer. This is to treat them as plural when once grammatically singular, a perceived natural number prevails, especially when applying to institutional nouns and groups of people.
The noun 'police', for example, undergoes this treatment:
A football team can be treated likewise:
This tendency can be observed in texts produced already in the 19th century. For example, Jane Austen, a British author, writes in Chapter 4 of Pride and Prejudice, published in 1813: However, in Chapter 16, the grammatical number is used.
Negatives
Some dialects of British English use negative concords, also known as double negatives. Rather than changing a word or using a positive, words like nobody, not, nothing, and never would be used in the same sentence. While this does not occur in Standard English, it does occur in non-standard dialects. The double negation follows the idea of two different morphemes, one that causes the double negation, and one that is used for the point or the verb.
Standard British English
Standard English in the United Kingdom, as in other English-speaking nations, is widely enforced in schools and by social norms for formal contexts but not by any singular authority; for instance, there is no institution equivalent to the with French or the Royal Spanish Academy with Spanish. Standard British English differs notably in certain vocabulary, grammar, and pronunciation features from standard American English and certain other standard English varieties around the world. British and American spelling also differ in minor ways.
The accent, or pronunciation system, of standard British English, based in southeastern England, has been known for over a century as Received Pronunciation (RP). However, due to language evolution and changing social trends, some linguists argue that RP is losing prestige or has been replaced by another accent, one that the linguist Geoff Lindsey for instance calls Standard Southern British English. Other scholars suggest that more regionally-oriented standard accents are emerging in England. Outside of England, namely in Scotland and Northern Ireland, RP exerts very little influence, particularly in the 21st century. RP, while long established as the standard English accent around the globe due to the spread of the British Empire, is distinct from the standard English pronunciation in some parts of the world; most prominently, RP notably contrasts with standard North American accents.
As of the 21st century, dictionaries such as the Oxford English Dictionary, the Longman Dictionary of Contemporary English, the Chambers Dictionary, and the Collins Dictionary record actual usage rather than attempting to prescribe it. In addition, vocabulary and usage change with time; words are freely borrowed from other languages and other varieties of English, and neologisms are frequent.
History of standardisation
For historical reasons dating back to the rise of London in the ninth century, the form of language spoken in London and the East Midlands became standard English within the Court, and ultimately became the basis for generally accepted use in the law, government, literature and education in Britain. The standardisation of British English is thought to be from both dialect levelling and a thought of social superiority. Speaking in the Standard dialect created class distinctions; those who did not speak the standard English would be considered of a lesser class or social status and often discounted or considered of a low intelligence. By the early 20th century, British authors had produced numerous books intended as guides to English grammar and usage, a few of which achieved sufficient acclaim to have remained in print for long periods and to have been reissued in new editions after some decades. These include, most notably of all, Fowler's Modern English Usage and The Complete Plain Words by Sir Ernest Gowers.
Detailed guidance on many aspects of writing British English for publication is included in style guides issued by various publishers including The Times newspaper, the Oxford University Press and the Cambridge University Press. The Oxford University Press guidelines were originally drafted as a single broadsheet page by Horace Henry Hart, and were at the time (1893) the first guide of their type in English; they were gradually expanded and eventually published, first as ''Hart's Rules, and in 2002 as part of The Oxford Manual of Style. Comparable in authority and stature to The Chicago Manual of Style'' for published American English, the Oxford Manual is a fairly exhaustive standard for published British English that writers can turn to in the absence of specific guidance from their publishing house. Relationship with Commonwealth English British English is the basis of, and very similar to, Commonwealth English. Commonwealth English is English as spoken and written in the Commonwealth countries, though often with some local variation. This includes English spoken in Australia, Malta, New Zealand, Nigeria, and South Africa. It also includes South Asian English used in South Asia, in English varieties in Southeast Asia, and in parts of Africa. Canadian English is based on British English, but has more influence from American English, often grouped together due to their close proximity. British English, for example, is the closest English to Indian English, but Indian English has extra vocabulary and some English words are assigned different meanings. See also
* American English
* American and British English spelling differences
* Australian English
* British Sign Language
* Canadian English
* English in the Commonwealth of Nations
* Hiberno-English
* Newfoundland English
* New Zealand English
* South African English
References
Notes
}}
Citations
Bibliography
* McArthur, Tom (2002). Oxford Guide to World English. Oxford: Oxford University Press. hardback, paperback.
* Bragg, Melvyn (2004). The Adventure of English, London: Sceptre.
*
* Peters, Pam (2004). The Cambridge Guide to English Usage. Cambridge: Cambridge University Press. .
* Simpson, John (ed.) (1989). Oxford English Dictionary, 2nd edition. Oxford: Oxford University Press.
External links
* [http://www.bl.uk/learning/langlit/sounds/index.html Sounds Familiar?] – Examples of regional accents and dialects across the UK on the British Library's 'Sounds Familiar' website
* [http://sounds.bl.uk/BrowseCategory.aspx?category=Accents-and-dialects Accents and dialects from the British Library Sound Archive]
* [http://www.soundcomparisons.com/ Accents of English from Around the World] Hear and compare how the same 110 words are pronounced in 50 English accents from around the world – instantaneous playback online
* [http://septicscompanion.com/ The Septic's Companion: A British Slang Dictionary] – an online dictionary of British slang, viewable alphabetically or by category
* [http://www.britishenglish.com.tr/ British English Turkey]
Category:Dialects of English
Category:Languages of Gibraltar
Category:Languages of the United Kingdom | https://en.wikipedia.org/wiki/British_English | 2025-04-05T18:26:43.313311 |
4181 | Battle | thumb|upright1.35|British (red) and French (blue) armies begin engagement of the decisive Battle of Waterloo, with Prussian forces (gray) arriving from the northeast |altOverhead diagram of movement of forces at Battle of Waterloo
A battle is an occurrence of combat in warfare between opposing military units of any number or size. A war usually consists of multiple battles. In general, a battle is a military engagement that is well defined in duration, area, and force commitment. An engagement with only limited commitment between the forces and without decisive results is sometimes called a skirmish.
The word "battle" can also be used infrequently to refer to an entire operational campaign, although this usage greatly diverges from its conventional or customary meaning. Generally, the word "battle" is used for such campaigns if referring to a protracted combat encounter in which either one or both of the combatants had the same methods, resources, and strategic objectives throughout the encounter. Some prominent examples of this would be the Battle of the Atlantic, Battle of Britain, and the Battle of France, all in World War II.
Wars and military campaigns are guided by military strategy, whereas battles take place on a level of planning and execution known as operational mobility. German strategist Carl von Clausewitz stated that "the employment of battles ... to achieve the object of war" was the essence of strategy.
Etymology
Battle is a loanword from the Old French , first attested in 1297, from Late Latin , meaning "exercise of soldiers and gladiators in fighting and fencing", from Late Latin (taken from Germanic) "beat", from which the English word battery is also derived via Middle English .
Characteristics
The defining characteristic of the fight as a concept in military science has changed with the variations in the organisation, employment and technology of military forces. The English military historian John Keegan suggested an ideal definition of battle as "something which happens between two armies leading to the moral then physical disintegration of one or the other of them" but the origins and outcomes of battles can rarely be summarized so neatly. Battle in the 20th and 21st centuries is defined as the combat between large components of the forces in a military campaign, used to achieve military objectives. Where the duration of the battle is longer than a week, it is often for reasons of planning called an operation. Battles can be planned, encountered or forced by one side when the other is unable to withdraw from combat.
A battle always has as its purpose the reaching of a mission goal by use of military force. A victory in the battle is achieved when one of the opposing sides forces the other to abandon its mission and surrender its forces, routs the other (i.e., forces it to retreat or renders it militarily ineffective for further combat operations) or annihilates the latter, resulting in their deaths or capture. A battle may end in a Pyrrhic victory, which ultimately favors the defeated party. If no resolution is reached in a battle, it can result in a stalemate. A conflict in which one side is unwilling to reach a decision by a direct battle using conventional warfare often becomes an insurgency.
Until the 19th century the majority of battles were of short duration, many lasting a part of a day. (The Battle of Preston (1648), the Battle of Nations (1813) and the Battle of Gettysburg (1863) were exceptional in lasting three days.) This was mainly due to the difficulty of supplying armies in the field or conducting night operations. The means of prolonging a battle was typically with siege warfare. Improvements in transport and the sudden evolving of trench warfare, with its siege-like nature during the First World War in the 20th century, lengthened the duration of battles to days and weeks. during the Winter War
The use of the term "battle" in military history has led to its misuse when referring to almost any scale of combat, notably by strategic forces involving hundreds of thousands of troops that may be engaged in either one battle at a time (Battle of Leipzig) or operations (Battle of Wuhan). The space a battle occupies depends on the range of the weapons of the combatants. A "battle" in this broader sense may be of long duration and take place over a large area, as in the case of the Battle of Britain or the Battle of the Atlantic. Until the advent of artillery and aircraft, battles were fought with the two sides within sight, if not reach, of each other. The depth of the battlefield has also increased in modern warfare with inclusion of the supporting units in the rear areas; supply, artillery, medical personnel etc. often outnumber the front-line combat troops.
Battles are made up of a multitude of individual combats, skirmishes and small engagements and the combatants will usually only experience a small part of the battle. To the infantryman, there may be little to distinguish between combat as part of a minor raid or a big offensive, nor is it likely that he anticipates the future course of the battle; few of the British infantry who went over the top on the first day on the Somme, 1 July 1916, would have anticipated that the battle would last five months. Some of the Allied infantry who had just dealt a crushing defeat to the French at the Battle of Waterloo fully expected to have to fight again the next day (at the Battle of Wavre).
Battlespace
Battlespace is a unified strategic concept to integrate and combine armed forces for the military theatre of operations, including air, information, land, sea and space. It includes the environment, factors and conditions that must be understood to apply combat power, protect the force or complete the mission, comprising enemy and friendly armed forces; facilities; weather; terrain; and the electromagnetic spectrum.
Factors
Battles are decided by various factors, the number and quality of combatants and equipment, the skill of commanders and terrain are among the most prominent. Weapons and armour can be decisive; on many occasions armies have achieved victory through more advanced weapons than those of their opponents. An extreme example was in the Battle of Omdurman, in which a large army of Sudanese Mahdists armed in a traditional manner were destroyed by an Anglo-Egyptian force equipped with Maxim machine guns and artillery.
On some occasions, simple weapons employed in an unorthodox fashion have proven advantageous; Swiss pikemen gained many victories through their ability to transform a traditionally defensive weapon into an offensive one. Zulus in the early 19th century were victorious in battles against their rivals in part because they adopted a new kind of spear, the iklwa. Forces with inferior weapons have still emerged victorious at times, for example in the Wars of Scottish Independence. Disciplined troops are often of greater importance; at the Battle of Alesia, the Romans were greatly outnumbered but won because of superior training.
Battles can also be determined by terrain. Capturing high ground has been the main tactic in innumerable battles. An army that holds the high ground forces the enemy to climb and thus wear themselves down. Areas of jungle and forest, with dense vegetation act as force-multipliers, of benefit to inferior armies. Terrain may have lost importance in modern warfare, due to the advent of aircraft, though the terrain is still vital for camouflage, especially for guerrilla warfare.
Generals and commanders also play an important role, Hannibal, Julius Caesar, Khalid ibn Walid, Subutai and Napoleon Bonaparte were all skilled generals and their armies were extremely successful at times. An army that can trust the commands of their leaders with conviction in its success invariably has a higher morale than an army that doubts its every move. The British in the naval Battle of Trafalgar owed its success to the reputation of Admiral Lord Nelson.
Types
thumb|The Battle of Poltava between Russia and Sweden, by Denis Martens the Younger
Battles can be fought on land, at sea, and in the air. Naval battles have occurred since before the 5th century BC. Air battles have been far less common, due to their late conception, the most prominent being the Battle of Britain in 1940. Since the Second World War, land or sea battles have come to rely on air support. During the Battle of Midway, five aircraft carriers were sunk without either fleet coming into direct contact.
thumb|Battle Scene-Detail from Deccan miniature painting, c. 19th century
A pitched battle is an encounter where opposing sides agree on the time and place of combat.
A battle of encounter (or encounter battle) is a meeting engagement where the opposing sides collide in the field without either having prepared their attack or defence.
A battle of attrition aims to inflict losses on an enemy that are less sustainable compared to one's own losses. These need not be greater numerical losses – if one side is much more numerous than the other then pursuing a strategy based on attrition can work even if casualties on both sides are about equal. Many battles of the Western Front in the First World War were intentionally (Verdun) or unintentionally (Somme) attrition battles.
A battle of breakthrough aims to pierce the enemy's defences, thereby exposing the vulnerable flanks which can be turned.
A battle of encirclement—the of the German battle of manoeuvre ()—surrounds the enemy in a pocket.
A battle of envelopment involves an attack on one or both flanks; the classic example being the double envelopment of the Battle of Cannae.
A battle of annihilation is one in which the defeated party is destroyed in the field, such as the French fleet at the Battle of the Nile.
Battles are usually hybrids of different types listed above.
A decisive battle is one with political effects, determining the course of the war such as the Battle of Smolensk or bringing hostilities to an end, such as the Battle of Hastings or the Battle of Hattin. A decisive battle can change the balance of power or boundaries between countries. The concept of the decisive battle became popular with the publication in 1851 of Edward Creasy's The Fifteen Decisive Battles of the World. British military historians J.F.C. Fuller (The Decisive Battles of the Western World) and B.H. Liddell Hart (Decisive Wars of History), among many others, have written books in the style of Creasy's work.
Land
There is an obvious difference in the way battles have been fought. Early battles were probably fought between rival hunting bands as unorganized crowds. During the Battle of Megiddo, the first reliably documented battle in the fifteenth century BC, both armies were organised and disciplined; during the many wars of the Roman Empire, barbarians continued to use mob tactics.
As the Age of Enlightenment dawned, armies began to fight in highly disciplined lines. Each would follow the orders from their officers and fight as a unit instead of individuals. Armies were divided into regiments, battalions, companies and platoons. These armies would march, line up and fire in divisions.
Native Americans, on the other hand, did not fight in lines, using guerrilla tactics. American colonists and European forces continued using disciplined lines into the American Civil War.
A new style arose from the 1850s to the First World War, known as trench warfare, which also led to tactical radio. Chemical warfare also began in 1915.
By the Second World War, the use of the smaller divisions, platoons and companies became much more important as precise operations became vital. Instead of the trench stalemate of 1915–1917, in the Second World War, battles developed where small groups encountered other platoons. As a result, elite squads became much more recognized and distinguishable. Maneuver warfare also returned with an astonishing pace with the advent of the tank, replacing the cannon of the Enlightenment Age. Artillery has since gradually replaced the use of frontal troops. Modern battles resemble those of the Second World War, along with indirect combat through the use of aircraft and missiles which has come to constitute a large portion of wars in place of battles, where battles are now mostly reserved for capturing cities.
Naval
thumb|The Battle of Scheveningen of 1653: episode from the First Anglo-Dutch War.
One significant difference of modern naval battles, as opposed to earlier forms of combat is the use of marines, which introduced amphibious warfare. Today, a marine is actually an infantry regiment that sometimes fights solely on land and is no longer tied to the navy. A good example of an ancient naval battle is the Battle of Salamis. Most ancient naval battles were fought by fast ships using the battering ram to sink opposing fleets or steer close enough for boarding in hand-to-hand combat. Troops were often used to storm enemy ships as used by Romans and pirates. This tactic was usually used by civilizations that could not beat the enemy with ranged weaponry. Another invention in the late Middle Ages was the use of Greek fire by the Byzantines, which was used to set enemy fleets on fire. Empty demolition ships utilized the tactic to crash into opposing ships and set it afire with an explosion. After the invention of cannons, naval warfare became useful as support units for land warfare. During the 19th century, the development of mines led to a new type of naval warfare. The ironclad, first used in the American Civil War, resistant to cannons, soon made the wooden ship obsolete. The invention of military submarines, during World War I, brought naval warfare to both above and below the surface. With the development of military aircraft during World War II, battles were fought in the sky as well as below the ocean. Aircraft carriers have since become the central unit in naval warfare, acting as a mobile base for lethal aircraft.
Aerial
thumb|Heinkel He 111 bombers during the Battle of Britain
Although the use of aircraft has for the most part always been used as a supplement to land or naval engagements, since their first major military use in World War I aircraft have increasingly taken on larger roles in warfare. During World War I, the primary use was for reconnaissance, and small-scale bombardment. Aircraft began becoming much more prominent in the Spanish Civil War and especially World War II. Aircraft design began specializing, primarily into two types: bombers, which carried explosive payloads to bomb land targets or ships; and fighter-interceptors, which were used to either intercept incoming aircraft or to escort and protect bombers (engagements between fighter aircraft were known as dog fights). Some of the more notable aerial battles in this period include the Battle of Britain and the Battle of Midway. Another important use of aircraft came with the development of the helicopter, which first became heavily used during the Vietnam War, and still continues to be widely used today to transport and augment ground forces. Today, direct engagements between aircraft are rare – the most modern fighter-interceptors carry much more extensive bombing payloads, and are used to bomb precision land targets, rather than to fight other aircraft. Anti-aircraft batteries are used much more extensively to defend against incoming aircraft than interceptors. Despite this, aircraft today are much more extensively used as the primary tools for both army and navy, as evidenced by the prominent use of helicopters to transport and support troops, the use of aerial bombardment as the "first strike" in many engagements, and the replacement of the battleship with the aircraft carrier as the center of most modern navies.
Naming
thumb|left|Battle of Gibraltar of 1607, Hendrick Cornelisz Vroom
Battles are usually named after some feature of the battlefield geography, such as a town, forest or river, commonly prefixed "Battle of...". Occasionally battles are named after the date on which they took place, such as The Glorious First of June. In the Middle Ages it was considered important to settle on a suitable name for a battle which could be used by the chroniclers. After Henry V of England defeated a French army on October 25, 1415, he met with the senior French herald and they agreed to name the battle after the nearby castle and so it was called the Battle of Agincourt. In other cases, the sides adopted different names for the same battle, such as the Battle of Gallipoli which is known in Turkey as the Battle of Çanakkale. During the American Civil War, the Union tended to name the battles after the nearest watercourse, such as the Battle of Wilsons Creek and the Battle of Stones River, whereas the Confederates favoured the nearby towns, as in the Battles of Chancellorsville and Murfreesboro. Occasionally both names for the same battle entered the popular culture, such as the First Battle of Bull Run and the Second Battle of Bull Run, which are also referred to as the First and Second Battles of Manassas.
Sometimes in desert warfare, there is no nearby town name to use; map coordinates gave the name to the Battle of 73 Easting in the First Gulf War. Some place names have become synonymous with battles, such as the Passchendaele, Pearl Harbor, the Alamo, Thermopylae and Waterloo. Military operations, many of which result in battle, are given codenames, which are not necessarily meaningful or indicative of the type or the location of the battle. Operation Market Garden and Operation Rolling Thunder are examples of battles known by their military codenames. When a battleground is the site of more than one battle in the same conflict, the instances are distinguished by ordinal number, such as the First and Second Battles of Bull Run. An extreme case are the twelve Battles of the Isonzo—First to Twelfth—between Italy and Austria-Hungary during the First World War.
Some battles are named for the convenience of military historians so that periods of combat can be neatly distinguished from one another. Following the First World War, the British Battles Nomenclature Committee was formed to decide on standard names for all battles and subsidiary actions. To the soldiers who did the fighting, the distinction was usually academic; a soldier fighting at Beaumont Hamel on November 13, 1916, was probably unaware he was taking part in what the committee named the Battle of the Ancre. Many combats are too small to be battles; terms such as "action", "affair", "skirmish", "firefight", "raid", or "offensive patrol" are used to describe small military encounters. These combats often take place within the time and space of a battle and while they may have an objective, they are not necessarily "decisive". Sometimes the soldiers are unable to immediately gauge the significance of the combat; in the aftermath of the Battle of Waterloo, some British officers were in doubt as to whether the day's events merited the title of "battle" or would be called an "action".
Effects
Battles affect the individuals who take part, as well as the political actors. Personal effects of battle range from mild psychological issues to permanent and crippling injuries. Some battle-survivors have nightmares about the conditions they encountered or abnormal reactions to certain sights or sounds and some experience flashbacks. Physical effects of battle can include scars, amputations, lesions, loss of bodily functions, blindness, paralysis and death. Battles affect politics; a decisive battle can cause the losing side to surrender, while a Pyrrhic victory such as the Battle of Asculum can cause the winning side to reconsider its goals. Battles in civil wars have often decided the fate of monarchs or political factions. Famous examples include the Wars of the Roses, as well as the Jacobite risings. Battles affect the commitment of one side or the other to the continuance of a war, for example the Battle of Inchon and the Battle of Huế during the Tet Offensive.
See also
List of battles
Military strategy
Military tactics
Naval battle
Pitched battle
Skirmisher
War
Further reading
Interstate War Battle dataset (1823–2003)
References
Sources
no isbn
External links
Category:Military operations by type | https://en.wikipedia.org/wiki/Battle | 2025-04-05T18:26:43.369944 |
4182 | Berry Berenson | | death_place = New York City, New York
| death_cause = Plane crash as part of the September 11 attacks
| occupation =
| years_active = 1960s–2001
| spouse
| children = Oz Perkins<br />Elvis Perkins
| relatives = Elsa Schiaparelli (grandmother)<br />Marisa Berenson (sister)
}}
Berinthia "Berry" Berenson-Perkins ( Berenson; April 14, 1948 – September 11, 2001) was an American actress, model and photographer. She was the widow of actor Anthony Perkins. She died in the September 11 attacks, being a passenger on American Airlines Flight 11.
Early life
Berry Berenson was born in Murray Hill, Manhattan, New York City. Her mother was born Maria-Luisa Yvonne Radha de Wendt de Kerlor, better known as Gogo Schiaparelli, a socialite of Italian, Swiss, & French ancestry. Her father, Robert Lawrence Berenson, was an American career diplomat turned shipping executive. He was of Russian-Jewish and Polish-Jewish descent, and his family's original surname was Valvrojenski.
Berenson's maternal grandmother was the Italian-born fashion designer Elsa Schiaparelli, and her maternal grandfather was Wilhelm de Wendt de Kerlor, a Theosophist and psychic medium. Her elder sister, Marisa Berenson, became a well-known model and actress. She also was a great-grandniece of Giovanni Schiaparelli, an Italian astronomer who believed he had discovered canals on Mars, and a second cousin, once removed, of art expert Bernard Berenson (1865–1959), and his sister Senda Berenson (1868–1954), an athlete and educator who was one of the first two women elected to the Basketball Hall of Fame.
Career
Following a brief modeling career in the late 1960s, Berenson became a freelance photographer. In 1972, Berenson's fiancé Richard Bernstein was hired as the cover artist for Andy Warhol's Interview magazine. Berenson would recruit models for the cover and photograph them, and Bernstein illustrated the images. By 1973, her photographs had been published in Life, Glamour, Vogue and Newsweek.
Berenson studied acting at New York's The American Place Theatre with Wynn Handman along with Richard Gere, Philip Anglim, Penelope Milford, Robert Ozn, Ingrid Boulting and her sister Marisa.
As an actress, Berenson starred opposite her husband Anthony Perkins in the 1978 Alan Rudolph film Remember My Name. She also appeared with Jeff Bridges in the 1979 film Winter Kills, and with Malcolm McDowell in Cat People (1982).
Personal life
Berenson was engaged to artist Richard Bernstein. In 1972, Berenson had an affair with actor Anthony Perkins and they married on August 9, 1973, in Wellfleet, Massachusetts while she was three months pregnant. Although Perkins was gay, they remained married until Perkins died from AIDS-related complications on September 12, 1992. Death
's North Pool]]
Berenson died on September 11, 2001, a day before the ninth anniversary of Perkins’ death, as she was returning home to Los Angeles from a vacation on Cape Cod. She and the other passengers and crew aboard American Airlines Flight 11 died when the plane was hijacked and deliberately crashed into the North Tower of the World Trade Center during the September 11 attacks on the US.
At the National September 11 Memorial & Museum, Berenson's name is inscribed on Panel N-76 at the North Pool.ReferencesExternal links
*
* [https://web.archive.org/web/20080703201536/http://www.tampabaycoalition.com/files/TBC911BerryBerensonFriend.htm Several news stories about Berry Berenson]
Category:1948 births
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Category:Actresses from Manhattan
Category:American Airlines Flight 11 victims
Category:American film actresses
Category:American people of French descent
Category:American people of Italian descent
Category:American people of Russian-Jewish descent
Category:American people of Polish-Jewish descent
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Category:American women photographers
Category:Female models from New York (state)
Category:Jewish American actresses
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Category:People from Wellfleet, Massachusetts
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Category:21st-century American actresses
Category:21st-century American people | https://en.wikipedia.org/wiki/Berry_Berenson | 2025-04-05T18:26:43.397637 |
4183 | Botany | , a species native to Indonesia, is the source of two valuable spices, the red aril (mace) enclosing the dark brown nutmeg.]]
Botany, also called plant science, is the branch of natural science and biology studying plants, especially their anatomy, taxonomy, and ecology. A botanist or plant scientist is a scientist who specialises in this field. "Plant" and "botany" may be defined more narrowly to include only land plants and their study, which is also known as phytology. Nowadays, phytologists or botanists (in the strict sense) study approximately 410,000 species of land plants, including some 391,000 species of vascular plants (of which approximately 369,000 are flowering plants) and approximately 20,000 bryophytes.
Botany originated in prehistory as herbalism with the efforts of early humans to identify – and later cultivate – plants that were edible, poisonous, and possibly medicinal, making it one of the first endeavours of human investigation. Medieval physic gardens, often attached to monasteries, contained plants possibly having medicinal benefit. They were forerunners of the first botanical gardens attached to universities, founded from the 1540s onwards. One of the earliest was the Padua botanical garden. These gardens facilitated the academic study of plants. Efforts to catalogue and describe their collections were the beginnings of plant taxonomy and led in 1753 to the binomial system of nomenclature of Carl Linnaeus that remains in use to this day for the naming of all biological species.
In the 19th and 20th centuries, new techniques were developed for the study of plants, including methods of optical microscopy and live cell imaging, electron microscopy, analysis of chromosome number, plant chemistry and the structure and function of enzymes and other proteins. In the last two decades of the 20th century, botanists exploited the techniques of molecular genetic analysis, including genomics and proteomics and DNA sequences to classify plants more accurately.
Modern botany is a broad subject with contributions and insights from most other areas of science and technology. Research topics include the study of plant structure, growth and differentiation, reproduction, biochemistry and primary metabolism, chemical products, development, diseases, evolutionary relationships, systematics, and plant taxonomy. Dominant themes in 21st-century plant science are molecular genetics and epigenetics, which study the mechanisms and control of gene expression during differentiation of plant cells and tissues. Botanical research has diverse applications in providing staple foods, materials such as timber, oil, rubber, fibre and drugs, in modern horticulture, agriculture and forestry, plant propagation, breeding and genetic modification, in the synthesis of chemicals and raw materials for construction and energy production, in environmental management, and the maintenance of biodiversity.
Etymology
The term "botany" comes from the Ancient Greek word () meaning "pasture", "herbs" "grass", or "fodder"; is in turn derived from '' (Greek: ), "to feed" or "to graze". Traditionally, botany has also included the study of fungi and algae by mycologists and phycologists respectively, with the study of these three groups of organisms remaining within the sphere of interest of the International Botanical Congress. History Early botany
, from Robert Hooke's Micrographia, 1665]]
Botany originated as herbalism, the study and use of plants for their possible medicinal properties. The early recorded history of botany includes many ancient writings and plant classifications. Examples of early botanical works have been found in ancient texts from India dating back to before 1100 BCE, Ancient Egypt, in archaic Avestan writings, and in works from China purportedly from before 221 BCE.
Modern botany traces its roots back to Ancient Greece specifically to Theophrastus (–287 BCE), a student of Aristotle who invented and described many of its principles and is widely regarded in the scientific community as the "Father of Botany". His major works, Enquiry into Plants and On the Causes of Plants, constitute the most important contributions to botanical science until the Middle Ages, almost seventeen centuries later.
Another work from Ancient Greece that made an early impact on botany is , a five-volume encyclopedia about preliminary herbal medicine written in the middle of the first century by Greek physician and pharmacologist Pedanius Dioscorides. was widely read for more than 1,500 years. Important contributions from the medieval Muslim world include Ibn Wahshiyya's Nabatean Agriculture, Abū Ḥanīfa Dīnawarī's (828–896) the Book of Plants, and Ibn Bassal's The Classification of Soils. In the early 13th century, Abu al-Abbas al-Nabati, and Ibn al-Baitar (d. 1248) wrote on botany in a systematic and scientific manner.
In the mid-16th century, botanical gardens were founded in a number of Italian universities. The Padua botanical garden in 1545 is usually considered to be the first which is still in its original location. These gardens continued the practical value of earlier "physic gardens", often associated with monasteries, in which plants were cultivated for suspected medicinal uses. They supported the growth of botany as an academic subject. Lectures were given about the plants grown in the gardens. Botanical gardens came much later to northern Europe; the first in England was the University of Oxford Botanic Garden in 1621.
German physician Leonhart Fuchs (1501–1566) was one of "the three German fathers of botany", along with theologian Otto Brunfels (1489–1534) and physician Hieronymus Bock (1498–1554) (also called Hieronymus Tragus). Fuchs and Brunfels broke away from the tradition of copying earlier works to make original observations of their own. Bock created his own system of plant classification.
Physician Valerius Cordus (1515–1544) authored a botanically and pharmacologically important herbal Historia Plantarum in 1544 and a pharmacopoeia of lasting importance, the Dispensatorium in 1546. Naturalist Conrad von Gesner (1516–1565) and herbalist John Gerard (1545–) published herbals covering the supposed medicinal uses of plants. Naturalist Ulisse Aldrovandi (1522–1605) was considered the father of natural history, which included the study of plants. In 1665, using an early microscope, Polymath Robert Hooke discovered cells (a term he coined) in cork, and a short time later in living plant tissue.
Early modern botany
of Linnaeus' residence in Uppsala, Sweden, was planted according to his Systema sexuale.]]
During the 18th century, systems of plant identification were developed comparable to dichotomous keys, where unidentified plants are placed into taxonomic groups (e.g. family, genus and species) by making a series of choices between pairs of characters. The choice and sequence of the characters may be artificial in keys designed purely for identification (diagnostic keys) or more closely related to the natural or phyletic order of the taxa in synoptic keys. By the 18th century, new plants for study were arriving in Europe in increasing numbers from newly discovered countries and the European colonies worldwide. In 1753, Carl Linnaeus published his Species Plantarum, a hierarchical classification of plant species that remains the reference point for modern botanical nomenclature. This established a standardised binomial or two-part naming scheme where the first name represented the genus and the second identified the species within the genus. For the purposes of identification, Linnaeus's Systema Sexuale classified plants into 24 groups according to the number of their male sexual organs. The 24th group, Cryptogamia, included all plants with concealed reproductive parts, mosses, liverworts, ferns, algae and fungi.
Increasing knowledge of plant anatomy, morphology and life cycles led to the realisation that there were more natural affinities between plants than the artificial sexual system of Linnaeus. Adanson (1763), de Jussieu (1789), and Candolle (1819) all proposed various alternative natural systems of classification that grouped plants using a wider range of shared characters and were widely followed. The Candollean system reflected his ideas of the progression of morphological complexity and the later Bentham & Hooker system, which was influential until the mid-19th century, was influenced by Candolle's approach. Darwin's publication of the Origin of Species in 1859 and his concept of common descent required modifications to the Candollean system to reflect evolutionary relationships as distinct from mere morphological similarity.
In the 19th century botany was a socially acceptable hobby for upper-class women. These women would collect and paint flowers and plants from around the world with scientific accuracy. The paintings were used to record many species that could not be transported or maintained in other environments. Marianne North illustrated over 900 species in extreme detail with watercolor and oil paintings. Her work and many other women's botany work was the beginning of popularizing botany to a wider audience.
Botany was greatly stimulated by the appearance of the first "modern" textbook, Matthias Schleiden's , published in English in 1849 as Principles of Scientific Botany. Schleiden was a microscopist and an early plant anatomist who co-founded the cell theory with Theodor Schwann and Rudolf Virchow and was among the first to grasp the significance of the cell nucleus that had been described by Robert Brown in 1831. In 1855, Adolf Fick formulated Fick's laws that enabled the calculation of the rates of molecular diffusion in biological systems. Late modern botany Building upon the gene-chromosome theory of heredity that originated with Gregor Mendel (1822–1884), August Weismann (1834–1914) proved that inheritance only takes place through gametes. No other cells can pass on inherited characters. The work of Katherine Esau (1898–1997) on plant anatomy is still a major foundation of modern botany. Her books Plant Anatomy and Anatomy of Seed Plants have been key plant structural biology texts for more than half a century.
The discipline of plant ecology was pioneered in the late 19th century by botanists such as Eugenius Warming, who produced the hypothesis that plants form communities, and his mentor and successor Christen C. Raunkiær whose system for describing plant life forms is still in use today. The concept that the composition of plant communities such as temperate broadleaf forest changes by a process of ecological succession was developed by Henry Chandler Cowles, Arthur Tansley and Frederic Clements. Clements is credited with the idea of climax vegetation as the most complex vegetation that an environment can support and Tansley introduced the concept of ecosystems to biology. Building on the extensive earlier work of Alphonse de Candolle, Nikolai Vavilov (1887–1943) produced accounts of the biogeography, centres of origin, and evolutionary history of economic plants.
Particularly since the mid-1960s there have been advances in understanding of the physics of plant physiological processes such as transpiration (the transport of water within plant tissues), the temperature dependence of rates of water evaporation from the leaf surface and the molecular diffusion of water vapour and carbon dioxide through stomatal apertures. These developments, coupled with new methods for measuring the size of stomatal apertures, and the rate of photosynthesis have enabled precise description of the rates of gas exchange between plants and the atmosphere. Innovations in statistical analysis by Ronald Fisher, Frank Yates and others at Rothamsted Experimental Station facilitated rational experimental design and data analysis in botanical research. The discovery and identification of the auxin plant hormones by Kenneth V. Thimann in 1948 enabled regulation of plant growth by externally applied chemicals. Frederick Campion Steward pioneered techniques of micropropagation and plant tissue culture controlled by plant hormones. The synthetic auxin 2,4-dichlorophenoxyacetic acid or 2,4-D was one of the first commercial synthetic herbicides.
20th century developments in plant biochemistry have been driven by modern techniques of organic chemical analysis, such as spectroscopy, chromatography and electrophoresis. With the rise of the related molecular-scale biological approaches of molecular biology, genomics, proteomics and metabolomics, the relationship between the plant genome and most aspects of the biochemistry, physiology, morphology and behaviour of plants can be subjected to detailed experimental analysis. The concept originally stated by Gottlieb Haberlandt in 1902 that all plant cells are totipotent and can be grown in vitro ultimately enabled the use of genetic engineering experimentally to knock out a gene or genes responsible for a specific trait, or to add genes such as GFP that report when a gene of interest is being expressed. These technologies enable the biotechnological use of whole plants or plant cell cultures grown in bioreactors to synthesise pesticides, antibiotics or other pharmaceuticals, as well as the practical application of genetically modified crops designed for traits such as improved yield.
Modern morphology recognises a continuum between the major morphological categories of root, stem (caulome), leaf (phyllome) and trichome. Furthermore, it emphasises structural dynamics. Modern systematics aims to reflect and discover phylogenetic relationships between plants. Modern Molecular phylogenetics largely ignores morphological characters, relying on DNA sequences as data. Molecular analysis of DNA sequences from most families of flowering plants enabled the Angiosperm Phylogeny Group to publish in 1998 a phylogeny of flowering plants, answering many of the questions about relationships among angiosperm families and species. The theoretical possibility of a practical method for identification of plant species and commercial varieties by DNA barcoding is the subject of active current research.
Branches of botany
Botany is divided along several axes.
Some subfields of botany relate to particular groups of organisms. Divisions related to the broader historical sense of botany include bacteriology, mycology (or fungology), and phycology - respectively, the study of bacteria, fungi, and algae - with lichenology as a subfield of mycology. The narrower sense of botany as the study of embryophytes (land plants) is called phytology. Bryology is the study of mosses (and in the broader sense also liverworts and hornworts). Pteridology (or filicology) is the study of ferns and allied plants. A number of other taxa of ranks varying from family to subgenus have terms for their study, including agrostology (or graminology) for the study of grasses, synantherology for the study of composites, and batology for the study of brambles.
Study can also be divided by guild rather than clade or grade. For example, dendrology is the study of woody plants.
Many divisions of biology have botanical subfields. These are commonly denoted by prefixing the word plant (e.g. plant taxonomy, plant ecology, plant anatomy, plant morphology, plant systematics), or prefixing or substituting the prefix phyto- (e.g. phytochemistry, phytogeography). The study of fossil plants is called palaeobotany. Other fields are denoted by adding or substituting the word botany (e.g. systematic botany).
Phytosociology is a subfield of plant ecology that classifies and studies communities of plants.
The intersection of fields from the above pair of categories gives rise to fields such as bryogeography, the study of the distribution of mosses.
Different parts of plants also give rise to their own subfields, including xylology, carpology (or fructology), and palynology, these being the study of wood, fruit and pollen/spores respectively.
Botany also overlaps on the one hand with agriculture, horticulture and silviculture, and on the other hand with medicine and pharmacology, giving rise to fields such as agronomy, horticultural botany, phytopathology, and phytopharmacology.
Scope and importance
''.]]
The study of plants is vital because they underpin almost all animal life on Earth by generating a large proportion of the oxygen and food that provide humans and other organisms with aerobic respiration with the chemical energy they need to exist. Plants, algae and cyanobacteria are the major groups of organisms that carry out photosynthesis, a process that uses the energy of sunlight to convert water and carbon dioxide into sugars that can be used both as a source of chemical energy and of organic molecules that are used in the structural components of cells. As a by-product of photosynthesis, plants release oxygen into the atmosphere, a gas that is required by nearly all living things to carry out cellular respiration. In addition, they are influential in the global carbon and water cycles and plant roots bind and stabilise soils, preventing soil erosion. Plants are crucial to the future of human society as they provide food, oxygen, biochemicals, and products for people, as well as creating and preserving soil.
Historically, all living things were classified as either animals or plants and botany covered the study of all organisms not considered animals. Botanists examine both the internal functions and processes within plant organelles, cells, tissues, whole plants, plant populations and plant communities. At each of these levels, a botanist may be concerned with the classification (taxonomy), phylogeny and evolution, structure (anatomy and morphology), or function (physiology) of plant life.
The strictest definition of "plant" includes only the "land plants" or embryophytes, which include seed plants (gymnosperms, including the pines, and flowering plants) and the free-sporing cryptogams including ferns, clubmosses, liverworts, hornworts and mosses. Embryophytes are multicellular eukaryotes descended from an ancestor that obtained its energy from sunlight by photosynthesis. They have life cycles with alternating haploid and diploid phases. The sexual haploid phase of embryophytes, known as the gametophyte, nurtures the developing diploid embryo sporophyte within its tissues for at least part of its life, even in the seed plants, where the gametophyte itself is nurtured by its parent sporophyte. Other groups of organisms that were previously studied by botanists include bacteria (now studied in bacteriology), fungi (mycology) – including lichen-forming fungi (lichenology), non-chlorophyte algae (phycology), and viruses (virology). However, attention is still given to these groups by botanists, and fungi (including lichens) and photosynthetic protists are usually covered in introductory botany courses.
Palaeobotanists study ancient plants in the fossil record to provide information about the evolutionary history of plants. Cyanobacteria, the first oxygen-releasing photosynthetic organisms on Earth, are thought to have given rise to the ancestor of plants by entering into an endosymbiotic relationship with an early eukaryote, ultimately becoming the chloroplasts in plant cells. The new photosynthetic plants (along with their algal relatives) accelerated the rise in atmospheric oxygen started by the cyanobacteria, changing the ancient oxygen-free, reducing, atmosphere to one in which free oxygen has been abundant for more than 2 billion years.
Among the important botanical questions of the 21st century are the role of plants as primary producers in the global cycling of life's basic ingredients: energy, carbon, oxygen, nitrogen and water, and ways that our plant stewardship can help address the global environmental issues of resource management, conservation, human food security, biologically invasive organisms, carbon sequestration, climate change, and sustainability.
Human nutrition
Virtually all staple foods come either directly from primary production by plants, or indirectly from animals that eat them. Plants and other photosynthetic organisms are at the base of most food chains because they use the energy from the sun and nutrients from the soil and atmosphere, converting them into a form that can be used by animals. This is what ecologists call the first trophic level. The modern forms of the major staple foods, such as hemp, teff, maize, rice, wheat and other cereal grasses, pulses, bananas and plantains, as well as hemp, flax and cotton grown for their fibres, are the outcome of prehistoric selection over thousands of years from among wild ancestral plants with the most desirable characteristics.
Botanists study how plants produce food and how to increase yields, for example through plant breeding, making their work important to humanity's ability to feed the world and provide food security for future generations. Botanists also study weeds, which are a considerable problem in agriculture, and the biology and control of plant pathogens in agriculture and natural ecosystems. Ethnobotany is the study of the relationships between plants and people. When applied to the investigation of historical plant–people relationships ethnobotany may be referred to as archaeobotany or palaeoethnobotany. Some of the earliest plant-people relationships arose between the indigenous people of Canada in identifying edible plants from inedible plants. This relationship the indigenous people had with plants was recorded by ethnobotanists. Plant biochemistry Plant biochemistry is the study of the chemical processes used by plants. Some of these processes are used in their primary metabolism like the photosynthetic Calvin cycle and crassulacean acid metabolism. Others make specialised materials like the cellulose and lignin used to build their bodies, and secondary products like resins and aroma compounds.
of some spinach leaf extract shows the various pigments present in their chloroplasts: yellowish xanthophylls, greenish chlorophylls a and b.]]
Plants and various other groups of photosynthetic eukaryotes collectively known as "algae" have unique organelles known as chloroplasts. Chloroplasts are thought to be descended from cyanobacteria that formed endosymbiotic relationships with ancient plant and algal ancestors. Chloroplasts and cyanobacteria contain the blue-green pigment chlorophyll a. Chlorophyll a (as well as its plant and green algal-specific cousin chlorophyll b)}} absorbs light in the blue-violet and orange/red parts of the spectrum while reflecting and transmitting the green light that we see as the characteristic colour of these organisms. The energy in the red and blue light that these pigments absorb is used by chloroplasts to make energy-rich carbon compounds from carbon dioxide and water by oxygenic photosynthesis, a process that generates molecular oxygen (O<sub>2</sub>) as a by-product.
The light energy captured by chlorophyll a is initially in the form of electrons (and later a proton gradient) that's used to make molecules of ATP and NADPH which temporarily store and transport energy. Their energy is used in the light-independent reactions of the Calvin cycle by the enzyme rubisco to produce molecules of the 3-carbon sugar glyceraldehyde 3-phosphate (G3P). Glyceraldehyde 3-phosphate is the first product of photosynthesis and the raw material from which glucose and almost all other organic molecules of biological origin are synthesised. Some of the glucose is converted to starch which is stored in the chloroplast. Starch is the characteristic energy store of most land plants and algae, while inulin, a polymer of fructose is used for the same purpose in the sunflower family Asteraceae. Some of the glucose is converted to sucrose (common table sugar) for export to the rest of the plant.
Unlike in animals (which lack chloroplasts), plants and their eukaryote relatives have delegated many biochemical roles to their chloroplasts, including synthesising all their fatty acids, and most amino acids. The fatty acids that chloroplasts make are used for many things, such as providing material to build cell membranes out of and making the polymer cutin which is found in the plant cuticle that protects land plants from drying out.
Plants synthesise a number of unique polymers like the polysaccharide molecules cellulose, pectin and xyloglucan from which the land plant cell wall is constructed.
Vascular land plants make lignin, a polymer used to strengthen the secondary cell walls of xylem tracheids and vessels to keep them from collapsing when a plant sucks water through them under water stress. Lignin is also used in other cell types like sclerenchyma fibres that provide structural support for a plant and is a major constituent of wood. Sporopollenin is a chemically resistant polymer found in the outer cell walls of spores and pollen of land plants responsible for the survival of early land plant spores and the pollen of seed plants in the fossil record. It is widely regarded as a marker for the start of land plant evolution during the Ordovician period.
The concentration of carbon dioxide in the atmosphere today is much lower than it was when plants emerged onto land during the Ordovician and Silurian periods. Many monocots like maize and the pineapple and some dicots like the Asteraceae have since independently evolved pathways like Crassulacean acid metabolism and the carbon fixation pathway for photosynthesis which avoid the losses resulting from photorespiration in the more common carbon fixation pathway. These biochemical strategies are unique to land plants. Medicine and materials Phytochemistry is a branch of plant biochemistry primarily concerned with the chemical substances produced by plants during secondary metabolism. Some of these compounds are toxins such as the alkaloid coniine from hemlock. Others, such as the essential oils peppermint oil and lemon oil are useful for their aroma, as flavourings and spices (e.g., capsaicin), and in medicine as pharmaceuticals as in opium from opium poppies. Many medicinal and recreational drugs, such as tetrahydrocannabinol (active ingredient in cannabis), caffeine, morphine and nicotine come directly from plants. Others are simple derivatives of botanical natural products. For example, the pain killer aspirin is the acetyl ester of salicylic acid, originally isolated from the bark of willow trees, and a wide range of opiate painkillers like heroin are obtained by chemical modification of morphine obtained from the opium poppy. Popular stimulants come from plants, such as caffeine from coffee, tea and chocolate, and nicotine from tobacco. Most alcoholic beverages come from fermentation of carbohydrate-rich plant products such as barley (beer), rice (sake) and grapes (wine). Native Americans have used various plants as ways of treating illness or disease for thousands of years. This knowledge Native Americans have on plants has been recorded by enthnobotanists and then in turn has been used by pharmaceutical companies as a way of drug discovery.
Plants can synthesise coloured dyes and pigments such as the anthocyanins responsible for the red colour of red wine, yellow weld and blue woad used together to produce Lincoln green, indoxyl, source of the blue dye indigo traditionally used to dye denim and the artist's pigments gamboge and rose madder.
Sugar, starch, cotton, linen, hemp, some types of rope, wood and particle boards, papyrus and paper, vegetable oils, wax, and natural rubber are examples of commercially important materials made from plant tissues or their secondary products. Charcoal, a pure form of carbon made by pyrolysis of wood, has a long history as a metal-smelting fuel, as a filter material and adsorbent and as an artist's material and is one of the three ingredients of gunpowder. Cellulose, the world's most abundant organic polymer, can be converted into energy, fuels, materials and chemical feedstock. Products made from cellulose include rayon and cellophane, wallpaper paste, biobutanol and gun cotton. Sugarcane, rapeseed and soy are some of the plants with a highly fermentable sugar or oil content that are used as sources of biofuels, important alternatives to fossil fuels, such as biodiesel. Sweetgrass was used by Native Americans to ward off bugs like mosquitoes. These bug repelling properties of sweetgrass were later found by the American Chemical Society in the molecules phytol and coumarin. Plant ecology
of Medicago italica contain the nitrogen fixing bacterium Sinorhizobium meliloti. The plant provides the bacteria with nutrients and an anaerobic environment, and the bacteria fix nitrogen for the plant.]]
Plant ecology is the science of the functional relationships between plants and their habitats – the environments where they complete their life cycles. Plant ecologists study the composition of local and regional floras, their biodiversity, genetic diversity and fitness, the adaptation of plants to their environment, and their competitive or mutualistic interactions with other species. Some ecologists even rely on empirical data from indigenous people that is gathered by ethnobotanists. This information can relay a great deal of information on how the land once was thousands of years ago and how it has changed over that time. at the start of chapter XII noted "The first and most important of the conclusions which may be drawn from the observations given in this volume, is that generally cross-fertilisation is beneficial and self-fertilisation often injurious, at least with the plants on which I experimented." An important adaptive benefit of outcrossing is that it allows the masking of deleterious mutations in the genome of progeny. This beneficial effect is also known as hybrid vigor or heterosis. Once outcrossing is established, subsequent switching to inbreeding becomes disadvantageous since it allows expression of the previously masked deleterious recessive mutations, commonly referred to as inbreeding depression.
Unlike in higher animals, where parthenogenesis is rare, asexual reproduction may occur in plants by several different mechanisms. The formation of stem tubers in potato is one example. Particularly in arctic or alpine habitats, where opportunities for fertilisation of flowers by animals are rare, plantlets or bulbs, may develop instead of flowers, replacing sexual reproduction with asexual reproduction and giving rise to clonal populations genetically identical to the parent. This is one of several types of apomixis that occur in plants. Apomixis can also happen in a seed, producing a seed that contains an embryo genetically identical to the parent.
Most sexually reproducing organisms are diploid, with paired chromosomes, but doubling of their chromosome number may occur due to errors in cytokinesis. This can occur early in development to produce an autopolyploid or partly autopolyploid organism, or during normal processes of cellular differentiation to produce some cell types that are polyploid (endopolyploidy), or during gamete formation. An allopolyploid plant may result from a hybridisation event between two different species. Both autopolyploid and allopolyploid plants can often reproduce normally, but may be unable to cross-breed successfully with the parent population because there is a mismatch in chromosome numbers. These plants that are reproductively isolated from the parent species but live within the same geographical area, may be sufficiently successful to form a new species. Some otherwise sterile plant polyploids can still reproduce vegetatively or by seed apomixis, forming clonal populations of identical individuals. Durum wheat is a fertile tetraploid allopolyploid, while bread wheat is a fertile hexaploid. The commercial banana is an example of a sterile, seedless triploid hybrid. Common dandelion is a triploid that produces viable seeds by apomictic seed.
As in other eukaryotes, the inheritance of endosymbiotic organelles like mitochondria and chloroplasts in plants is non-Mendelian. Chloroplasts are inherited through the male parent in gymnosperms but often through the female parent in flowering plants. Molecular genetics
, the first plant to have its genome sequenced, remains the most important model organism.]]
A considerable amount of new knowledge about plant function comes from studies of the molecular genetics of model plants such as the Thale cress, Arabidopsis thaliana, a weedy species in the mustard family (Brassicaceae). The genome or hereditary information contained in the genes of this species is encoded by about 135 million base pairs of DNA, forming one of the smallest genomes among flowering plants. Arabidopsis was the first plant to have its genome sequenced, in 2000. The sequencing of some other relatively small genomes, of rice (Oryza sativa) and Brachypodium distachyon, has made them important model species for understanding the genetics, cellular and molecular biology of cereals, grasses and monocots generally.
Model plants such as Arabidopsis thaliana are used for studying the molecular biology of plant cells and the chloroplast. Ideally, these organisms have small genomes that are well known or completely sequenced, small stature and short generation times. Corn has been used to study mechanisms of photosynthesis and phloem loading of sugar in plants. The single celled green alga Chlamydomonas reinhardtii, while not an embryophyte itself, contains a green-pigmented chloroplast related to that of land plants, making it useful for study. A red alga Cyanidioschyzon merolae has also been used to study some basic chloroplast functions. Spinach, peas, soybeans and a moss Physcomitrella patens are commonly used to study plant cell biology.
Agrobacterium tumefaciens'', a soil rhizosphere bacterium, can attach to plant cells and infect them with a callus-inducing Ti plasmid by horizontal gene transfer, causing a callus infection called crown gall disease. Schell and Van Montagu (1977) hypothesised that the Ti plasmid could be a natural vector for introducing the Nif gene responsible for nitrogen fixation in the root nodules of legumes and other plant species. Today, genetic modification of the Ti plasmid is one of the main techniques for introduction of transgenes to plants and the creation of genetically modified crops. Epigenetics
Epigenetics is the study of heritable changes in gene function that cannot be explained by changes in the underlying DNA sequence but cause the organism's genes to behave (or "express themselves") differently. One example of epigenetic change is the marking of the genes by DNA methylation which determines whether they will be expressed or not. Gene expression can also be controlled by repressor proteins that attach to silencer regions of the DNA and prevent that region of the DNA code from being expressed. Epigenetic marks may be added or removed from the DNA during programmed stages of development of the plant, and are responsible, for example, for the differences between anthers, petals and normal leaves, despite the fact that they all have the same underlying genetic code. Epigenetic changes may be temporary or may remain through successive cell divisions for the remainder of the cell's life. Some epigenetic changes have been shown to be heritable, while others are reset in the germ cells.
Epigenetic changes in eukaryotic biology serve to regulate the process of cellular differentiation. During morphogenesis, totipotent stem cells become the various pluripotent cell lines of the embryo, which in turn become fully differentiated cells. A single fertilised egg cell, the zygote, gives rise to the many different plant cell types including parenchyma, xylem vessel elements, phloem sieve tubes, guard cells of the epidermis, etc. as it continues to divide. The process results from the epigenetic activation of some genes and inhibition of others.
Unlike animals, many plant cells, particularly those of the parenchyma, do not terminally differentiate, remaining totipotent with the ability to give rise to a new individual plant. Exceptions include highly lignified cells, the sclerenchyma and xylem which are dead at maturity, and the phloem sieve tubes which lack nuclei. While plants use many of the same epigenetic mechanisms as animals, such as chromatin remodelling, an alternative hypothesis is that plants set their gene expression patterns using positional information from the environment and surrounding cells to determine their developmental fate.
Epigenetic changes can lead to paramutations, which do not follow the Mendelian heritage rules. These epigenetic marks are carried from one generation to the next, with one allele inducing a change on the other.
Plant evolution
gwynne-vaughani]]
The chloroplasts of plants have a number of biochemical, structural and genetic similarities to cyanobacteria, (commonly but incorrectly known as "blue-green algae") and are thought to be derived from an ancient endosymbiotic relationship between an ancestral eukaryotic cell and a cyanobacterial resident.
The algae are a polyphyletic group and are placed in various divisions, some more closely related to plants than others. There are many differences between them in features such as cell wall composition, biochemistry, pigmentation, chloroplast structure and nutrient reserves. The algal division Charophyta, sister to the green algal division Chlorophyta, is considered to contain the ancestor of true plants. The Charophyte class Charophyceae and the land plant sub-kingdom Embryophyta together form the monophyletic group or clade Streptophytina.
Nonvascular land plants are embryophytes that lack the vascular tissues xylem and phloem. They include mosses, liverworts and hornworts. Pteridophytic vascular plants with true xylem and phloem that reproduced by spores germinating into free-living gametophytes evolved during the Silurian period and diversified into several lineages during the late Silurian and early Devonian. Representatives of the lycopods have survived to the present day. By the end of the Devonian period, several groups, including the lycopods, sphenophylls and progymnosperms, had independently evolved "megaspory" – their spores were of two distinct sizes, larger megaspores and smaller microspores. Their reduced gametophytes developed from megaspores retained within the spore-producing organs (megasporangia) of the sporophyte, a condition known as endospory. Seeds consist of an endosporic megasporangium surrounded by one or two sheathing layers (integuments). The young sporophyte develops within the seed, which on germination splits to release it. The earliest known seed plants date from the latest Devonian Famennian stage. Following the evolution of the seed habit, seed plants diversified, giving rise to a number of now-extinct groups, including seed ferns, as well as the modern gymnosperms and angiosperms. Gymnosperms produce "naked seeds" not fully enclosed in an ovary; modern representatives include conifers, cycads, Ginkgo, and Gnetales. Angiosperms produce seeds enclosed in a structure such as a carpel or an ovary. Ongoing research on the molecular phylogenetics of living plants appears to show that the angiosperms are a sister clade to the gymnosperms.
Plant physiology
Plant physiology encompasses all the internal chemical and physical activities of plants associated with life. Chemicals obtained from the air, soil and water form the basis of all plant metabolism. The energy of sunlight, captured by oxygenic photosynthesis and released by cellular respiration, is the basis of almost all life. Photoautotrophs, including all green plants, algae and cyanobacteria gather energy directly from sunlight by photosynthesis. Heterotrophs including all animals, all fungi, all completely parasitic plants, and non-photosynthetic bacteria take in organic molecules produced by photoautotrophs and respire them or use them in the construction of cells and tissues. Respiration is the oxidation of carbon compounds by breaking them down into simpler structures to release the energy they contain, essentially the opposite of photosynthesis.
Molecules are moved within plants by transport processes that operate at a variety of spatial scales. Subcellular transport of ions, electrons and molecules such as water and enzymes occurs across cell membranes. Minerals and water are transported from roots to other parts of the plant in the transpiration stream. Diffusion, osmosis, and active transport and mass flow are all different ways transport can occur. Examples of elements that plants need to transport are nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. In vascular plants, these elements are extracted from the soil as soluble ions by the roots and transported throughout the plant in the xylem. Most of the elements required for plant nutrition come from the chemical breakdown of soil minerals. Sucrose produced by photosynthesis is transported from the leaves to other parts of the plant in the phloem and plant hormones are transported by a variety of processes.
Plant hormones
with the sun overhead. Auxin (pink) is evenly distributed in its tip. <br />2 With the sun at an angle and only shining on one side of the shoot, auxin moves to the opposite side and stimulates cell elongation there. <br />3 and 4 Extra growth on that side causes the shoot to bend towards the sun.]]
Plants are not passive, but respond to external signals such as light, touch, and injury by moving or growing towards or away from the stimulus, as appropriate. Tangible evidence of touch sensitivity is the almost instantaneous collapse of leaflets of Mimosa pudica, the insect traps of Venus flytrap and bladderworts, and the pollinia of orchids.
The hypothesis that plant growth and development is coordinated by plant hormones or plant growth regulators first emerged in the late 19th century. Darwin experimented on the movements of plant shoots and roots towards light and gravity, and concluded "It is hardly an exaggeration to say that the tip of the radicle . . acts like the brain of one of the lower animals . . directing the several movements". About the same time, the role of auxins (from the Greek , to grow) in control of plant growth was first outlined by the Dutch scientist Frits Went. The first known auxin, indole-3-acetic acid (IAA), which promotes cell growth, was only isolated from plants about 50 years later. This compound mediates the tropic responses of shoots and roots towards light and gravity. The finding in 1939 that plant callus could be maintained in culture containing IAA, followed by the observation in 1947 that it could be induced to form roots and shoots by controlling the concentration of growth hormones were key steps in the development of plant biotechnology and genetic modification.
Cytokinins are a class of plant hormones named for their control of cell division (especially cytokinesis). The natural cytokinin zeatin was discovered in corn, Zea mays, and is a derivative of the purine adenine. Zeatin is produced in roots and transported to shoots in the xylem where it promotes cell division, bud development, and the greening of chloroplasts. The gibberelins, such as gibberelic acid are diterpenes synthesised from acetyl CoA via the mevalonate pathway. They are involved in the promotion of germination and dormancy-breaking in seeds, in regulation of plant height by controlling stem elongation and the control of flowering. Abscisic acid (ABA) occurs in all land plants except liverworts, and is synthesised from carotenoids in the chloroplasts and other plastids. It inhibits cell division, promotes seed maturation, and dormancy, and promotes stomatal closure. It was so named because it was originally thought to control abscission. Ethylene is a gaseous hormone that is produced in all higher plant tissues from methionine. It is now known to be the hormone that stimulates or regulates fruit ripening and abscission, and it, or the synthetic growth regulator ethephon which is rapidly metabolised to produce ethylene, are used on industrial scale to promote ripening of cotton, pineapples and other climacteric crops.
Another class of phytohormones is the jasmonates, first isolated from the oil of Jasminum grandiflorum which regulates wound responses in plants by unblocking the expression of genes required in the systemic acquired resistance response to pathogen attack.
In addition to being the primary energy source for plants, light functions as a signalling device, providing information to the plant, such as how much sunlight the plant receives each day. This can result in adaptive changes in a process known as photomorphogenesis. Phytochromes are the photoreceptors in a plant that are sensitive to light. Plant anatomy and morphology
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Plant anatomy is the study of the structure of plant cells and tissues, whereas plant morphology is the study of their external form.
All plants are multicellular eukaryotes, their DNA stored in nuclei. The characteristic features of plant cells that distinguish them from those of animals and fungi include a primary cell wall composed of the polysaccharides cellulose, hemicellulose and pectin, larger vacuoles than in animal cells and the presence of plastids with unique photosynthetic and biosynthetic functions as in the chloroplasts. Other plastids contain storage products such as starch (amyloplasts) or lipids (elaioplasts). Uniquely, streptophyte cells and those of the green algal order Trentepohliales divide by construction of a phragmoplast as a template for building a cell plate late in cell division.
However, no plant actually looks exactly like this.|275px|left|bottom|triangle|#43d050}}
The bodies of vascular plants including clubmosses, ferns and seed plants (gymnosperms and angiosperms) generally have aerial and subterranean subsystems. The shoots consist of stems bearing green photosynthesising leaves and reproductive structures. The underground vascularised roots bear root hairs at their tips and generally lack chlorophyll. Non-vascular plants, the liverworts, hornworts and mosses do not produce ground-penetrating vascular roots and most of the plant participates in photosynthesis. The sporophyte generation is nonphotosynthetic in liverworts but may be able to contribute part of its energy needs by photosynthesis in mosses and hornworts.
The root system and the shoot system are interdependent – the usually nonphotosynthetic root system depends on the shoot system for food, and the usually photosynthetic shoot system depends on water and minerals from the root system. Cells in each system are capable of creating cells of the other and producing adventitious shoots or roots. Stolons and tubers are examples of shoots that can grow roots. Roots that spread out close to the surface, such as those of willows, can produce shoots and ultimately new plants. In the event that one of the systems is lost, the other can often regrow it. In fact it is possible to grow an entire plant from a single leaf, as is the case with plants in Streptocarpus sect. Saintpaulia, or even a single cell – which can dedifferentiate into a callus (a mass of unspecialised cells) that can grow into a new plant.
In vascular plants, the xylem and phloem are the conductive tissues that transport resources between shoots and roots. Roots are often adapted to store food such as sugars or starch, as in sugar beets and carrots.
Stems mainly provide support to the leaves and reproductive structures, but can store water in succulent plants such as cacti, food as in potato tubers, or reproduce vegetatively as in the stolons of strawberry plants or in the process of layering. Leaves gather sunlight and carry out photosynthesis. Large, flat, flexible, green leaves are called foliage leaves. Gymnosperms, such as conifers, cycads, Ginkgo, and gnetophytes are seed-producing plants with open seeds. Angiosperms are seed-producing plants that produce flowers and have enclosed seeds. Woody plants, such as azaleas and oaks, undergo a secondary growth phase resulting in two additional types of tissues: wood (secondary xylem) and bark (secondary phloem and cork). All gymnosperms and many angiosperms are woody plants. Some plants reproduce sexually, some asexually, and some via both means.
Although reference to major morphological categories such as root, stem, leaf, and trichome are useful, one has to keep in mind that these categories are linked through intermediate forms so that a continuum between the categories results. Furthermore, structures can be seen as processes, that is, process combinations.
Systematic botany
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Systematic botany is part of systematic biology, which is concerned with the range and diversity of organisms and their relationships, particularly as determined by their evolutionary history. It involves, or is related to, biological classification, scientific taxonomy and phylogenetics. Biological classification is the method by which botanists group organisms into categories such as genera or species. Biological classification is a form of scientific taxonomy. Modern taxonomy is rooted in the work of Carl Linnaeus, who grouped species according to shared physical characteristics. These groupings have since been revised to align better with the Darwinian principle of common descent – grouping organisms by ancestry rather than superficial characteristics. While scientists do not always agree on how to classify organisms, molecular phylogenetics, which uses DNA sequences as data, has driven many recent revisions along evolutionary lines and is likely to continue to do so. The dominant classification system is called Linnaean taxonomy. It includes ranks and binomial nomenclature. The nomenclature of botanical organisms is codified in the International Code of Nomenclature for algae, fungi, and plants (ICN) and administered by the International Botanical Congress.
Kingdom Plantae belongs to Domain Eukaryota and is broken down recursively until each species is separately classified. The order is: Kingdom; Phylum (or Division); Class; Order; Family; Genus (plural genera); Species. The scientific name of a plant represents its genus and its species within the genus, resulting in a single worldwide name for each organism. For example, the tiger lily is Lilium columbianum. Lilium is the genus, and columbianum the specific epithet. The combination is the name of the species. When writing the scientific name of an organism, it is proper to capitalise the first letter in the genus and put all of the specific epithet in lowercase. Additionally, the entire term is ordinarily italicised (or underlined when italics are not available).
The evolutionary relationships and heredity of a group of organisms is called its phylogeny. Phylogenetic studies attempt to discover phylogenies. The basic approach is to use similarities based on shared inheritance to determine relationships. As an example, species of Pereskia are trees or bushes with prominent leaves. They do not obviously resemble a typical leafless cactus such as an Echinocactus. However, both Pereskia and Echinocactus have spines produced from areoles (highly specialised pad-like structures) suggesting that the two genera are indeed related.
Judging relationships based on shared characters requires care, since plants may resemble one another through convergent evolution in which characters have arisen independently. Some euphorbias have leafless, rounded bodies adapted to water conservation similar to those of globular cacti, but characters such as the structure of their flowers make it clear that the two groups are not closely related. The cladistic method takes a systematic approach to characters, distinguishing between those that carry no information about shared evolutionary history – such as those evolved separately in different groups (homoplasies) or those left over from ancestors (plesiomorphies) – and derived characters, which have been passed down from innovations in a shared ancestor (apomorphies). Only derived characters, such as the spine-producing areoles of cacti, provide evidence for descent from a common ancestor. The results of cladistic analyses are expressed as cladograms: tree-like diagrams showing the pattern of evolutionary branching and descent.
From the 1990s onwards, the predominant approach to constructing phylogenies for living plants has been molecular phylogenetics, which uses molecular characters, particularly DNA sequences, rather than morphological characters like the presence or absence of spines and areoles. The difference is that the genetic code itself is used to decide evolutionary relationships, instead of being used indirectly via the characters it gives rise to. Clive Stace describes this as having "direct access to the genetic basis of evolution." As a simple example, prior to the use of genetic evidence, fungi were thought either to be plants or to be more closely related to plants than animals. Genetic evidence suggests that the true evolutionary relationship of multicelled organisms is as shown in the cladogram below – fungi are more closely related to animals than to plants.
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In 1998, the Angiosperm Phylogeny Group published a phylogeny for flowering plants based on an analysis of DNA sequences from most families of flowering plants. As a result of this work, many questions, such as which families represent the earliest branches of angiosperms, have now been answered. Investigating how plant species are related to each other allows botanists to better understand the process of evolution in plants. Despite the study of model plants and increasing use of DNA evidence, there is ongoing work and discussion among taxonomists about how best to classify plants into various taxa. Technological developments such as computers and electron microscopes have greatly increased the level of detail studied and speed at which data can be analysed.
Symbols
A few symbols are in current use in botany. A number of others are obsolete; for example, Linnaeus used planetary symbols (Mars) for biennial plants, (Jupiter) for herbaceous perennials and (Saturn) for woody perennials, based on the planets' orbital periods of 2, 12 and 30 years; and Willd used (Saturn) for neuter in addition to (Mercury) for hermaphroditic. The following symbols are still used:
:♀ female
:♂ male
:⚥ hermaphrodite/bisexual
:⚲ vegetative (asexual) reproduction
:◊ sex unknown
:☉ annual
:⚇ biennial
:♾ perennial
:☠ poisonous
:🛈 further information
:× crossbred hybrid
:+ grafted hybrid
See also
* Branches of botany
* Evolution of plants
* Glossary of botanical terms
* Glossary of plant morphology
* List of botany journals
* List of botanists
* List of botanical gardens
* List of botanists by author abbreviation
* List of domesticated plants
* List of flowers
* List of systems of plant taxonomy
* Outline of botany
* Timeline of British botany
Notes
References
Citations
Sources
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* |last1Chapman |first1Jasmin |last2Horsfall |first2Peter |last3O'Brien |first3Pat |last4Murphy |first4Jan |last5MacDonald |first5Averil |titleScience Web |year2001 |publisherNelson Thornes |locationCheltenham, UK |isbn978-0-17-438746-6}}
* |titleAn Update of the Angiosperm Phylogeny Group Classification for the Orders and Families of Flowering Plants: APG II |year2003 |last1Chase |first1Mark W. |journalBotanical Journal of the Linnean Society |volume141 |pages399–436 |urlhttp://ktriop.bio.ug.edu.pl/upload/preview/0f0c6bdcb447f9defaa482c50120a62d.pdf |last2Bremer |first2Birgitta |last3Bremer |first3Kåre |last4Reveal |first4James L. |last5Soltis |first5Douglas E. |last6Soltis |first6Pamela S. |last7Stevens |first7Peter S. |doi10.1046/j.1095-8339.2003.t01-1-00158.x |issue4 |doi-accessfree |access-date2012-04-01 |archive-date2016-03-03 |archive-urlhttps://web.archive.org/web/20160303181438/http://ktriop.bio.ug.edu.pl/upload/preview/0f0c6bdcb447f9defaa482c50120a62d.pdf |url-statuslive}}
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* |last1Woese |first1C.R. |last2Magrum |first2W.E. |last3Fox |first3L.J. |last4Wolfe |first4G.E. |last5Woese |first5R.S. |titleAn Ancient Divergence Among the Bacteria |journalJournal of Molecular Evolution |volume9 |pages305–311 |issue4 |dateAugust 1977 |pmid408502 |doi10.1007/BF01796092 |bibcode1977JMolE...9..305B |s2cid=27788891}}
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* |authorThe Arabidopsis Genome Initiative |titleAnalysis of the Genome Sequence of the Flowering Plant Arabidopsis thaliana |journalNature |year2000 |volume408 |doi10.1038/35048692 |pmid11130711 |issue6814 |pages796–815 |bibcode2000Natur.408..796T |doi-accessfree}}
* |urlhttps://www.plant-hormones.info/auxins.htm |titleAuxins |publisherPlant Hormones, Long Ashton Research Station, Biotechnology and Biological Sciences Research Council |access-dateJuly 15, 2013 |archiveurlhttps://web.archive.org/web/20211210184700/https://plant-hormones.info/auxins/ |archivedate=2021-12-10}}
* |urlhttps://www.ncbi.nlm.nih.gov/About/primer/genetics_cell.html |titleA Basic Introduction to the Science Underlying NCBI Resources |dateMarch 30, 2004 |publisherNational Center for Biotechnology Information |access-dateMarch 5, 2012 |archive-dateFebruary 16, 2002 |archive-urlhttps://web.archive.org/web/20020216073807/https://www.ncbi.nlm.nih.gov/About/primer/genetics_cell.html |url-status=live}}
* |urlhttp://www.etymonline.com/index.php?allowed_in_frame0&searchbotany&searchmodenone |titleBotany |dictionaryOnline Etymology Dictionary |year2012 |access-dateFebruary 24, 2012 |archive-dateSeptember 8, 2017 |archive-urlhttps://web.archive.org/web/20170908201347/http://www.etymonline.com/index.php?allowed_in_frame0&searchbotany&searchmodenone |url-status=live}}
* |titleBryophytes (Mosses and liverworts) |urlhttp://www.theplantlist.org/1.1/browse/B/ |url-statuslive |archive-urlhttps://web.archive.org/web/20170606161401/http://www.theplantlist.org/1.1/browse/B/ |archive-date2017-06-06 |access-date2017-03-13 |websiteThe Plant List (superseded by World Flora Online)}}
* |urlhttp://www.museumwales.ac.uk/en/852/?article_id131 |archive-urlhttps://archive.today/20120629144256/http://www.museumwales.ac.uk/en/852/?article_id131 |url-statusdead |archive-dateJune 29, 2012 |titleEarly Herbals – The German Fathers of Botany |publisherNational Museum of Wales |dateJuly 4, 2007 |access-date=February 19, 2012}}
* |urlhttps://www.nsf.gov/od/nms/recip_details.cfm?recip_id120 |titleKatherine Esau |publisherNational Science Foundation |year1989 |access-dateJune 26, 2013 |archive-dateOctober 16, 2012 |archive-urlhttps://web.archive.org/web/20121016091820/https://www.nsf.gov/od/nms/recip_details.cfm?recip_id120 |url-status=live}}
* |urlhttp://www.botany.org/bsa/millen/mil-chp1.html#Evolution |titleEvolution and Diversity, Botany for the Next Millennium: I. The Intellectual: Evolution, Development, Ecosystems |publisherBotanical Society of America |access-dateJune 25, 2013 |archive-dateJanuary 31, 1998 |archive-urlhttps://web.archive.org/web/19980131020409/http://www.botany.org/bsa/millen/mil-chp1.html#Evolution |url-statuslive}}
* |urlhttp://www.umm.edu/altmed/articles/herbal-medicine-000351.htm |titleHerbal Medicine |publisherUniversity of Maryland Medical Center |archive-urlhttps://web.archive.org/web/20120302205401/http://www.umm.edu/altmed/articles/herbal-medicine-000351.htm |access-dateMarch 2, 2012 |archive-date=2012-03-02}}
* |urlhttps://www.cmnh.org/discover/science/paleobotany-paleoecology |titlePaleobotany |publisherCleveland Museum of Natural History |access-dateJuly 30, 2014 |archive-dateAugust 11, 2014 |archive-urlhttps://web.archive.org/web/20140811074831/https://www.cmnh.org/discover/science/paleobotany-paleoecology |url-statuslive}}
* |urlhttp://phymap.ucdavis.edu/brachypodium/phymapintro.jsp |archive-urlhttps://web.archive.org/web/20110824105534/http://phymap.ucdavis.edu/brachypodium/phymapintro.jsp |url-statusdead |archive-dateAugust 24, 2011 |titlePhysical Map of Brachypodium |publisherUniversity of California-Davis |access-dateFebruary 26, 2012}}
* |urlhttp://www.mbgnet.net/bioplants/earth.html |titlePlants and Life on Earth |publisherMissouri Botanical Garden |year2009 |access-dateMarch 10, 2012 |archive-dateJune 24, 2006 |archive-urlhttps://web.archive.org/web/20060624095930/http://www.mbgnet.net/bioplants/earth.html |url-status=live}}
* |urlhttp://ibot.sav.sk/icbn/frameset/0065Ch7OaGoNSec1a60.htm#recF |titleRecommendation 60F |workInternational Code of Botanical Nomenclature, Vienna Code |publisherInternational Association for Plant Taxonomy |year2006 |accessdateMarch 4, 2012 |archive-dateJanuary 26, 2021 |archive-urlhttps://web.archive.org/web/20210126040330/https://ibot.sav.sk/icbn/frameset/0065Ch7OaGoNSec1a60.htm#recF |url-statuslive}}
* |date18 Aug 2015 |urlhttps://www.washingtonpost.com/news/morning-mix/wp/2015/08/18/research-confirms-native-american-use-of-sweetgrass-as-bug-repellent/ |titleResearch confirms Native American use of sweetgrass as bug repellent |newspaperWashington Post |access-date2016-05-05 |archive-date2018-10-19 |archive-urlhttps://web.archive.org/web/20181019041253/https://www.washingtonpost.com/news/morning-mix/wp/2015/08/18/research-confirms-native-american-use-of-sweetgrass-as-bug-repellent/ |url-status=live}}
* |titleThe State of the World's Plants Report – 2016. |year2016 |publisherRoyal Botanic Gardens, Kew. |isbn978-1-84246-628-5 |urlhttps://stateoftheworldsplants.com/report/sotwp_2016.pdf |access-date2016-09-28 |archive-date2016-09-28 |archive-urlhttps://web.archive.org/web/20160928190506/https://stateoftheworldsplants.com/report/sotwp_2016.pdf}}
External links
*
Category:Articles containing video clips | https://en.wikipedia.org/wiki/Botany | 2025-04-05T18:26:43.545670 |
4184 | Bacillus thuringiensis | * subsp. "toguchini" <small>Khodyrev 1990</small>
* subsp. "tolworthi" <small>Sick et al. 1990</small>
* subsp. "toumanoffii" <small>Krieg 1969</small>
* subsp. "wuhanensis" <small>Kuo and Chak 1996</small>
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of Bacillus thuringiensis under 1000 × magnification]]
Bacillus thuringiensis (or Bt) is a gram-positive, soil-dwelling bacterium, the most commonly used biological pesticide worldwide. B. thuringiensis also occurs naturally in the gut of caterpillars of various types of moths and butterflies, as well on leaf surfaces, aquatic environments, animal feces, insect-rich environments, flour mills and grain-storage facilities. It has also been observed to parasitize moths such as Cadra calidella—in laboratory experiments working with C. calidella, many of the moths were diseased due to this parasite.
During sporulation, many Bt strains produce crystal proteins (proteinaceous inclusions), called delta endotoxins, that have insecticidal action. This has led to their use as insecticides, and more recently to genetically modified crops using Bt genes, such as Bt corn. Many crystal-producing Bt strains, though, do not have insecticidal properties. The subspecies israelensis is commonly used for control of mosquitoes and of fungus gnats.
As a toxic mechanism, cry proteins bind to specific receptors on the membranes of mid-gut (epithelial) cells of the targeted pests, resulting in their rupture. Other organisms (including humans, other animals and non-targeted insects) that lack the appropriate receptors in their gut cannot be affected by the cry protein, and therefore are not affected by Bt.
Taxonomy and discovery
In 1902, B. thuringiensis was first discovered in silkworms by Japanese sericultural engineer . He named it B. sotto, using the Japanese word , here referring to bacillary paralysis. In 1911, German microbiologist Ernst Berliner rediscovered it when he isolated it as the cause of a disease called in flour moth caterpillars in Thuringia (hence the specific name thuringiensis, "Thuringian"). B. sotto would later be reassigned as B. thuringiensis var. sotto.
In 1976, Robert A. Zakharyan reported the presence of a plasmid in a strain of B. thuringiensis and suggested the plasmid's involvement in endospore and crystal formation. B. thuringiensis is closely related to B. cereus, a soil bacterium, and B. anthracis, the cause of anthrax; the three organisms differ mainly in their plasmids. Like other members of the genus, all three are capable of producing endospores. -->
Species group placement
B. thuringiensis is placed in the Bacillus cereus group which is variously defined as: seven closely related species: B. cereus sensu stricto (B. cereus), B. anthracis, B. thuringiensis, B. mycoides, B. pseudomycoides, and B. cytotoxicus; or as six species in a Bacillus cereus sensu lato: B. weihenstephanensis, B. mycoides, B. pseudomycoides, B. cereus, B. thuringiensis, and B. anthracis. Within this grouping B.t. is more closely related to B.ce. It is more distantly related to B.w., B.m., B.p., and B.cy.SubspeciesThere are several dozen recognized subspecies of B. thuringiensis. Subspecies commonly used as insecticides include B. thuringiensis subspecies kurstaki (Btk), subspecies israelensis (Bti) and (Bta). Some Bti lineages are clonal.
Cry toxins have specific activities against insect species of the orders Lepidoptera (moths and butterflies), Diptera (flies and mosquitoes), Coleoptera (beetles) and Hymenoptera (wasps, bees, ants and sawflies), as well as against nematodes. A specific example of B. thuringiensis use against beetles is the fight against Colorado Potato Beetles in potato crops. Thus, B. thuringiensis serves as an important reservoir of Cry toxins for production of biological insecticides and insect-resistant genetically modified crops. When insects ingest toxin crystals, their alkaline digestive tracts denature the insoluble crystals, making them soluble and thus amenable to being cut with proteases found in the insect gut, which liberate the toxin from the crystal. The insect stops eating and starves to death; live Bt bacteria may also colonize the insect, which can contribute to death. Death occurs within a few hours or weeks. The midgut bacteria of susceptible larvae may be required for B. thuringiensis insecticidal activity.
A B. thuringiensis small RNA called BtsR1 can silence the Cry5Ba toxin expression when outside the host by binding to the RBS site of the Cry5Ba toxin transcript to avoid nematode behavioral defenses. The silencing results in an increase of the bacteria ingestion by C. elegans. The expression of BtsR1 is then reduced after ingestion, resulting in Cry5Ba toxin production and host death.
In 1996 another class of insecticidal proteins in Bt was discovered: the vegetative insecticidal proteins (Vip; ). Vip proteins do not share sequence homology with Cry proteins, in general do not compete for the same receptors, and some kill different insects than do Cry proteins. The proteins of parasporin group are defined as B. thuringiensis and related bacterial parasporal proteins that are not hemolytic, but capable of preferentially killing cancer cells. As of January 2013, parasporins comprise six subfamilies: PS1 to PS6.Use of spores and proteins in pest controlSpores and crystalline insecticidal proteins produced by B. thuringiensis have been used to control insect pests since the 1920s and are often applied as liquid sprays. They are now used as specific insecticides under trade names such as DiPel and Thuricide. Because of their specificity, these pesticides are regarded as environmentally friendly, with little or no effect on humans, wildlife, pollinators, and most other beneficial insects, and are used in organic farming; and a 2012 European regulatory peer review of five approved strains found, while data exist to support some claims of low toxicity to humans and the environment, the data are insufficient to justify many of these claims.
New strains of Bt are developed and introduced over time as insects develop resistance to Bt, or the desire occurs to force mutations to modify organism characteristics, or to use homologous recombinant genetic engineering to improve crystal size and increase pesticidal activity, or broaden the host range of Bt and obtain more effective formulations. Each new strain is given a unique number and registered with the U.S. EPA and allowances may be given for genetic modification depending on "its parental strains, the proposed pesticide use pattern, and the manner and extent to which the organism has been genetically modified". Formulations of Bt that are approved for organic farming in the US are listed at the website of the Organic Materials Review Institute (OMRI) and several university extension websites offer advice on how to use Bt spore or protein preparations in organic farming. The Bt tobacco was never commercialized; tobacco plants are used to test genetic modifications since they are easy to manipulate genetically and are not part of the food supply.
leaves (bottom dish) protect it from extensive damage caused to unprotected peanut leaves by lesser cornstalk borer larvae (top dish).]]UsageIn 1995, were approved safe by the Environmental Protection Agency, making it the first human-modified pesticide-producing crop to be approved in the US, though many plants produce pesticides naturally, including tobacco, coffee plants, cocoa, cotton and black walnut. This was the 'New Leaf' potato, and it was removed from the market in 2001 due to lack of interest.
In 1996, was approved, which killed the European corn borer and related species; subsequent Bt genes were introduced that killed corn rootworm larvae.
The Bt genes engineered into crops and approved for release include, singly and stacked: Cry1A.105, CryIAb, CryIF, Cry2Ab, Cry3Bb1, Cry34Ab1, Cry35Ab1, mCry3A, and VIP, and the engineered crops include corn and cotton.
Corn genetically modified to produce VIP was first approved in the US in 2010.
In India, by 2014, more than seven million cotton farmers, occupying twenty-six million acres, had adopted .
Monsanto developed a and the glyphosate-resistance gene for the Brazilian market, which completed the Brazilian regulatory process in 2010.
- specifically Populus hybrids - have been developed. They do suffer lesser leaf damage from insect herbivory. The results have not been entirely positive however: The intended result - better timber yield - was not achieved, with no growth advantage despite that reduction in herbivore damage; one of their major pests still preys upon the transgenic trees; and besides that, their leaf litter decomposes differently due to the transgenic toxins, resulting in alterations to the aquatic insect populations nearby.
Bt corn]]
Safety studies
The use of Bt toxins as plant-incorporated protectants prompted the need for extensive evaluation of their safety for use in foods and potential unintended impacts on the environment.
Dietary risk assessment
Concerns over the safety of consumption of genetically modified plant materials that contain Cry proteins have been addressed in extensive dietary risk assessment studies. As a toxic mechanism, cry proteins bind to specific receptors on the membranes of mid-gut (epithelial) cells of the targeted pests, resulting in their rupture. While the target pests are exposed to the toxins primarily through leaf and stalk material, Cry proteins are also expressed in other parts of the plant, including trace amounts in maize kernels which are ultimately consumed by both humans and animals. However, other organisms (including humans, other animals and non-targeted insects) that lack the appropriate receptors in their gut cannot be affected by the cry protein, and therefore are not affected by Bt. Research on other known toxic proteins suggests that , further suggesting that Bt toxins are not toxic to mammals. The results of toxicology studies are further strengthened by the lack of observed toxicity from decades of use of B. thuringiensis and its crystalline proteins as an insecticidal spray.
Allergenicity studies
Introduction of a new protein raised concerns regarding the potential for allergic responses in sensitive individuals. Bioinformatic analysis of known allergens has indicated there is no concern of allergic reactions as a result of consumption of Bt toxins. Additionally, skin prick testing using purified Bt protein resulted in no detectable production of toxin-specific IgE antibodies, even in atopic patients.
Digestibility studies
Studies have been conducted to evaluate the fate of Bt toxins that are ingested in foods. Bt toxin proteins have been shown to digest within minutes of exposure to simulated gastric fluids. The instability of the proteins in digestive fluids is an additional indication that Cry proteins are unlikely to be allergenic, since most known food allergens resist degradation and are ultimately absorbed in the small intestine.Persistence in environmentConcerns over possible environmental impact from accumulation of Bt toxins from plant tissues, pollen dispersal, and direct secretion from roots have been investigated. Bt toxins may persist in soil for over 200 days, with half-lives between 1.6 and 22 days. Much of the toxin is initially degraded rapidly by microorganisms in the environment, while some is adsorbed by organic matter and persists longer. Some studies, in contrast, claim that the toxins do not persist in the soil. Bt toxins are less likely to accumulate in bodies of water, but pollen shed or soil runoff may deposit them in an aquatic ecosystem. Fish species are not susceptible to Bt toxins if exposed.
Impact on non-target organisms
The toxic nature of Bt proteins has an adverse impact on many major crop pests, but some ecological risk assessments has been conducted to ensure safety of beneficial non-target organisms that may come into contact with the toxins. Toxicity for the monarch butterfly, has been shown to not reach dangerous levels. Most soil-dwelling organisms, potentially exposed to Bt toxins through root exudates, are probably not impacted by the growth of Bt crops.Insect resistanceMultiple insects have developed a resistance to B. thuringiensis. In November 2009, Monsanto scientists found the pink bollworm had become resistant to the first-generation Bt cotton in parts of Gujarat, India - that generation expresses one Bt gene, Cry1Ac. This was the first instance of Bt resistance confirmed by Monsanto anywhere in the world. Monsanto responded by introducing a second-generation cotton with multiple Bt proteins, which was rapidly adopted. Additionally, resistance to Bt was documented in field population of diamondback moth in Hawaii, the continental US, and Asia. Studies in the cabbage looper have suggested that a mutation in the membrane transporter ABCC2 can confer resistance to Bt Cry1Ac.
Secondary pests
Several studies have documented surges in "sucking pests" (which are not affected by Bt toxins) within a few years of adoption of Bt cotton. In China, the main problem has been with mirids, which have in some cases "completely eroded all benefits from Bt cotton cultivation". The increase in sucking pests depended on local temperature and rainfall conditions and increased in half the villages studied. The increase in insecticide use for the control of these secondary insects was far smaller than the reduction in total insecticide use due to Bt cotton adoption. Another study in five provinces in China found the reduction in pesticide use in Bt cotton cultivars is significantly lower than that reported in research elsewhere, consistent with the hypothesis suggested by recent studies that more pesticide sprayings are needed over time to control emerging secondary pests, such as aphids, spider mites, and lygus bugs.
Similar problems have been reported in India, with both mealy bugs and aphids although a survey of small Indian farms between 2002 and 2008 concluded Bt cotton adoption has led to higher yields and lower pesticide use, decreasing over time.ControversiesThe controversies surrounding Bt use are among the many genetically modified food controversies more widely.Lepidopteran toxicityThe most publicised problem associated with Bt crops is the claim that pollen from Bt maize could kill the monarch butterfly. The paper produced a public uproar and demonstrations against Bt maize; however by 2001 several follow-up studies coordinated by the USDA had asserted that "the most common types of Bt maize pollen are not toxic to monarch larvae in concentrations the insects would encounter in the fields." Similarly, B. thuringiensis has been widely used for controlling Spodoptera littoralis larvae growth due to their detrimental pest activities in Africa and Southern Europe. However, S. littoralis showed resistance to many strains of B. thuriginesis and were only effectively controlled by a few strains.
Wild maize genetic mixing
A study published in Nature in 2001 reported Bt-containing maize genes were found in maize in its center of origin, Oaxaca, Mexico. Another Nature paper published in 2002 claimed that the previous paper's conclusion was the result of an artifact caused by an inverse polymerase chain reaction and that "the evidence available is not sufficient to justify the publication of the original paper." A significant controversy happened over the paper and Natures unprecedented notice.
A subsequent large-scale study in 2005 failed to find any evidence of genetic mixing in Oaxaca. A 2007 study found the "transgenic proteins expressed in maize were found in two (0.96%) of 208 samples from farmers' fields, located in two (8%) of 25 sampled communities." Mexico imports a substantial amount of maize from the U.S., and due to formal and informal seed networks among rural farmers, many potential routes are available for transgenic maize to enter into food and feed webs. One study found small-scale (about 1%) introduction of transgenic sequences in sampled fields in Mexico; it did not find evidence for or against this introduced genetic material being inherited by the next generation of plants. That study was immediately criticized, with the reviewer writing, "Genetically, any given plant should be either non-transgenic or transgenic, therefore for leaf tissue of a single transgenic plant, a GMO level close to 100% is expected. In their study, the authors chose to classify leaf samples as transgenic despite GMO levels of about 0.1%. We contend that results such as these are incorrectly interpreted as positive and are more likely to be indicative of contamination in the laboratory."
Colony collapse disorder
As of 2007, a new phenomenon called colony collapse disorder (CCD) began affecting bee hives all over North America. Initial speculation on possible causes included new parasites, pesticide use, and the use of Bt transgenic crops. The Mid-Atlantic Apiculture Research and Extension Consortium found no evidence that pollen from Bt crops is adversely affecting bees. According to the USDA, "Genetically modified (GM) crops, most commonly Bt corn, have been offered up as the cause of CCD. But there is no correlation between where GM crops are planted and the pattern of CCD incidents. Also, GM crops have been widely planted since the late 1990s, but CCD did not appear until 2006. In addition, CCD has been reported in countries that do not allow GM crops to be planted, such as Switzerland. German researchers have noted in one study a possible correlation between exposure to Bt pollen and compromised immunity to Nosema." The actual cause of CCD was unknown in 2007, and scientists believe it may have multiple exacerbating causes.Beta-exotoxinsSome isolates of B. thuringiensis produce a class of insecticidal small molecules called beta-exotoxin, the common name for which is thuringiensin. A consensus document produced by the OECD says: "Beta-exotoxins are known to be toxic to humans and almost all other forms of life and its presence is prohibited in B. thuringiensis microbial products". Thuringiensins are nucleoside analogues. They inhibit RNA polymerase activity, a process common to all forms of life, in rats and bacteria alike.
Other hosts
This bacterium is an opportunistic pathogen of animals other than insects, causing necrosis, pulmonary infection, and/or food poisoning. It is unknown how common this is, because these infections are always taken to be B. cereus infections and are rarely tested for the Cry and Cyt proteins that are the only factor distinguishing B. thuringiensis from B. cereus. See also
collects eggs from mosquitoes. The brown granules in the water are a B. t. israelensis preparation that kills hatched larvae.]]
* Biological insecticides
* Genetically modified food
* Western corn rootworm
* Cry1Ac
* Diamondback moth
* Sterile insect technique
References
Further reading
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thuringiensis
Category:Biopesticides
Category:Genetically modified organisms in agriculture
Category:Bacteria described in 1915 | https://en.wikipedia.org/wiki/Bacillus_thuringiensis | 2025-04-05T18:26:43.632436 |
4185 | Bacteriophage | ]]
bacteriophage]]
.]]
A bacteriophage (), also known informally as a phage (), is a virus that infects and replicates within bacteria and archaea. The term is derived (phagein)|to devour||bacteria}}. Bacteriophages are composed of proteins that encapsulate a DNA or RNA genome, and may have structures that are either simple or elaborate. Their genomes may encode as few as four genes (e.g. MS2) and as many as hundreds of genes. Phages replicate within the bacterium following the injection of their genome into its cytoplasm.
Bacteriophages are among the most common and diverse entities in the biosphere. Bacteriophages are ubiquitous viruses, found wherever bacteria exist. It is estimated there are more than 10<sup>31</sup> bacteriophages on the planet, more than every other organism on Earth, including bacteria, combined. Viruses are the most abundant biological entity in the water column of the world's oceans, and the second largest component of biomass after prokaryotes, where up to 9x10<sup>8</sup> virions per millilitre have been found in microbial mats at the surface, and up to 70% of marine bacteria may be infected by bacteriophages.
Bacteriophages were used from the 1920s as an alternative to antibiotics in the former Soviet Union and Central Europe, as well as in France and Brazil. They are seen as a possible therapy against multi-drug-resistant strains of many bacteria (see phage therapy).
Bacteriophages are known to interact with the immune system both indirectly via bacterial expression of phage-encoded proteins and directly by influencing innate immunity and bacterial clearance.
Classification
Bacteriophages occur abundantly in the biosphere, with different genomes and lifestyles. Phages are classified by the International Committee on Taxonomy of Viruses (ICTV) according to morphology and nucleic acid.
by morphology due to its short, non-contractile tail]]
due to its contractile tail]]
{| class="wikitable sortable"
|+ ICTV classification of prokaryotic (bacterial and archaeal) viruses
|-
| rowspan=2 | Ligamenvirales
| Lipothrixviridae || Enveloped, rod-shaped || Linear dsDNA || Acidianus filamentous virus 1
|-
| Rudiviridae || Nonenveloped, rod-shaped || Linear dsDNA || Sulfolobus islandicus rod-shaped virus 1
|-
| Mindivirales
| Cystoviridae || Enveloped, spherical || Linear dsRNA ||Φ6
|-
| rowspan="4" | Norzivirales
| Atkinsviridae || Nonenveloped, isometric || Linear ssRNA ||
|-
| Duinviridae || Nonenveloped, isometric || Linear ssRNA ||
|-
| Fiersviridae || Nonenveloped, isometric || Linear ssRNA || MS2, Qβ
|-
| Solspiviridae || Nonenveloped, isometric || Linear ssRNA ||
|-
| Petitvirales
| Microviridae || Nonenveloped, isometric || Circular ssDNA || ΦX174
|-
| Primavirales
| Tristromaviridae || Enveloped, rod-shaped || Linear dsDNA ||
|-
| rowspan="2" | Timlovirales
| Blumeviridae || Nonenveloped, isometric || Linear ssRNA ||
|-
| Steitzviridae || Nonenveloped, isometric || Linear ssRNA ||
|-
| rowspan="3" | Tubulavirales
| Inoviridae || Nonenveloped, filamentous || Circular ssDNA || M13
|-
| Paulinoviridae || Nonenveloped, filamentous || Circular ssDNA ||
|-
| Plectroviridae || Nonenveloped, filamentous || Circular ssDNA
|-
| Vinavirales
| Corticoviridae || Nonenveloped, isometric || Circular dsDNA || PM2
|-
| Durnavirales
| Picobirnaviridae (proposal) || Nonenveloped, isometric || Linear dsRNA ||
|-
| rowspan=14 | Unassigned
| Ampullaviridae || Enveloped, bottle-shaped || Linear dsDNA ||
|-
| Autolykiviridae || Nonenveloped, isometric || Linear dsDNA ||
|-
| Bicaudaviridae || Nonenveloped, lemon-shaped || Circular dsDNA ||
|-
| Clavaviridae || Nonenveloped, rod-shaped || Circular dsDNA ||
|-
| Fuselloviridae || Nonenveloped, lemon-shaped || Circular dsDNA || Alphafusellovirus
|-
| Globuloviridae || Enveloped, isometric || Linear dsDNA ||
|-
| Guttaviridae || Nonenveloped, ovoid || Circular dsDNA ||
|-
| Halspiviridae || Nonenveloped, lemon-shaped || Linear dsDNA ||
|-
| Plasmaviridae || Enveloped, pleomorphic || Circular dsDNA ||
|-
| Portogloboviridae || Enveloped, isometric || Circular dsDNA ||
|-
| Thaspiviridae || Nonenveloped, lemon-shaped || Linear dsDNA ||
|-
| Spiraviridae || Nonenveloped, rod-shaped || Circular ssDNA ||
|}
It has been suggested that members of Picobirnaviridae infect bacteria, but not mammals.
There are also many unassigned genera of the class Leviviricetes: Chimpavirus, Hohglivirus, Mahrahvirus, Meihzavirus, Nicedsevirus, Sculuvirus, Skrubnovirus, Tetipavirus and Winunavirus containing linear ssRNA genomes and the unassigned genus Lilyvirus of the order Caudovirales containing a linear dsDNA genome.
History
conducted the first clinical application of a bacteriophage]]
In 1896, Ernest Hanbury Hankin reported that something in the waters of the Ganges and Yamuna rivers in India had a marked antibacterial action against cholera and it could pass through a very fine porcelain filter. In 1915, British bacteriologist Frederick Twort, superintendent of the Brown Institution of London, discovered a small agent that infected and killed bacteria. He believed the agent must be one of the following:
# a stage in the life cycle of the bacteria
# an enzyme produced by the bacteria themselves, or
# a virus that grew on and destroyed the bacteria
Twort's research was interrupted by the onset of World War I, as well as a shortage of funding and the discoveries of antibiotics.
Independently, French-Canadian microbiologist Félix d'Hérelle, working at the Pasteur Institute in Paris, announced on 3 September 1917 that he had discovered "an invisible, antagonistic microbe of the dysentery bacillus". For d'Hérelle, there was no question as to the nature of his discovery: "In a flash I had understood: what caused my clear spots was in fact an invisible microbe... a virus parasitic on bacteria." D'Hérelle called the virus a bacteriophage, a bacterium-eater (from the Greek , meaning "to devour"). He also recorded a dramatic account of a man suffering from dysentery who was restored to good health by the bacteriophages. It was d'Hérelle who conducted much research into bacteriophages and introduced the concept of phage therapy. In 1919, in Paris, France, d'Hérelle conducted the first clinical application of a bacteriophage, with the first reported use in the United States being in 1922. Nobel prizes awarded for phage research In 1969, Max Delbrück, Alfred Hershey, and Salvador Luria were awarded the Nobel Prize in Physiology or Medicine for their discoveries of the replication of viruses and their genetic structure. Specifically the work of Hershey, as contributor to the Hershey–Chase experiment in 1952, provided convincing evidence that DNA, not protein, was the genetic material of life. Delbrück and Luria carried out the Luria–Delbrück experiment which demonstrated statistically that mutations in bacteria occur randomly and thus follow Darwinian rather than Lamarckian principles.
Uses
Phage therapy
pioneered the use of phages in treating bacterial infections]]
Phages were discovered to be antibacterial agents and were used in the former Soviet Republic of Georgia (pioneered there by Giorgi Eliava with help from the co-discoverer of bacteriophages, Félix d'Hérelle) during the 1920s and 1930s for treating bacterial infections.
D'Herelle "quickly learned that bacteriophages are found wherever bacteria thrive: in sewers, in rivers that catch waste runoff from pipes, and in the stools of convalescent patients."
They had widespread use, including treatment of soldiers in the Red Army. However, they were abandoned for general use in the West for several reasons:
* Antibiotics were discovered and marketed widely. They were easier to make, store, and prescribe.
* Medical trials of phages were carried out, but a basic lack of understanding of phages raised questions about the validity of these trials.
* Publication of research in the Soviet Union was mainly in the Russian or Georgian languages and for many years was not followed internationally.
* The Soviet technology was widely discouraged and in some cases illegal due to the red scare.
The use of phages has continued since the end of the Cold War in Russia, Georgia, and elsewhere in Central and Eastern Europe. The first regulated, randomized, double-blind clinical trial was reported in the Journal of Wound Care in June 2009, which evaluated the safety and efficacy of a bacteriophage cocktail to treat infected venous ulcers of the leg in human patients. The FDA approved the study as a Phase I clinical trial. The study's results demonstrated the safety of therapeutic application of bacteriophages, but did not show efficacy. The authors explained that the use of certain chemicals that are part of standard wound care (e.g. lactoferrin or silver) may have interfered with bacteriophage viability. The study concludes that bacteriophage preparations were safe and effective for treatment of chronic ear infections in humans. Additionally, there have been numerous animal and other experimental clinical trials evaluating the efficacy of bacteriophages for various diseases, such as infected burns and wounds, and cystic fibrosis-associated lung infections, among others.
Meanwhile, bacteriophage researchers have been developing engineered viruses to overcome antibiotic resistance, and engineering the phage genes responsible for coding enzymes that degrade the biofilm matrix, phage structural proteins, and the enzymes responsible for lysis of the bacterial cell wall.
Therapeutic efficacy of a phage cocktail was evaluated in a mouse model with nasal infection of multi-drug-resistant (MDR) A. baumannii. Mice treated with the phage cocktail showed a 2.3-fold higher survival rate compared to those untreated at seven days post-infection.
In 2017, a 68-year-old diabetic patient with necrotizing pancreatitis complicated by a pseudocyst infected with MDR A. baumannii strains was being treated with a cocktail of Azithromycin, Rifampicin, and Colistin for 4 months without results and overall rapidly declining health.
Because discussion had begun of the clinical futility of further treatment, an Emergency Investigational New Drug (eIND) was filed as a last effort to at the very least gain valuable medical data from the situation, and approved, so he was subjected to phage therapy using a percutaneously (PC) injected cocktail containing nine different phages that had been identified as effective against the primary infection strain by rapid isolation and testing techniques (a process which took under a day). This proved effective for a very brief period, although the patient remained unresponsive and his health continued to worsen; soon isolates of a strain of A. baumannii were being collected from drainage of the cyst that showed resistance to this cocktail, and a second cocktail which was tested to be effective against this new strain was added, this time by intravenous (IV) injection as it had become clear that the infection was more pervasive than originally thought.
Other
Food industry
Phages have increasingly been used to safen food products and to forestall spoilage bacteria. Since 2006, the United States Food and Drug Administration (FDA) and United States Department of Agriculture (USDA) have approved several bacteriophage products. LMP-102 (Intralytix) was approved for treating ready-to-eat (RTE) poultry and meat products. In that same year, the FDA approved LISTEX (developed and produced by Micreos) using bacteriophages on cheese to kill Listeria monocytogenes bacteria, in order to give them generally recognized as safe (GRAS) status. In July 2007, the same bacteriophage were approved for use on all food products. In 2011 USDA confirmed that LISTEX is a clean label processing aid and is included in USDA. Research in the field of food safety is continuing to see if lytic phages are a viable option to control other food-borne pathogens in various food products.Water indicators
Bacteriophages, including those specific to Escherichia coli, have been employed as indicators of fecal contamination in water sources. Due to their shared structural and biological characteristics, coliphages can serve as proxies for viral fecal contamination and the presence of pathogenic viruses such as rotavirus, norovirus, and HAV. Research conducted on wastewater treatment systems has revealed significant disparities in the behavior of coliphages compared to fecal coliforms, demonstrating a distinct correlation with the recovery of pathogenic viruses at the treatment's conclusion. Establishing a secure discharge threshold, studies have determined that discharges below 3000 PFU/100 mL are considered safe in terms of limiting the release of pathogenic viruses.
Diagnostics
In 2011, the FDA cleared the first bacteriophage-based product for in vitro diagnostic use. The KeyPath MRSA/MSSA Blood Culture Test uses a cocktail of bacteriophage to detect Staphylococcus aureus in positive blood cultures and determine methicillin resistance or susceptibility. The test returns results in about five hours, compared to two to three days for standard microbial identification and susceptibility test methods. It was the first accelerated antibiotic-susceptibility test approved by the FDA.
Counteracting bioweapons and toxins
Government agencies in the West have for several years been looking to Georgia and the former Soviet Union for help with exploiting phages for counteracting bioweapons and toxins, such as anthrax and botulism. Developments are continuing among research groups in the U.S. Other uses include spray application in horticulture for protecting plants and vegetable produce from decay and the spread of bacterial disease. Other applications for bacteriophages are as biocides for environmental surfaces, e.g., in hospitals, and as preventative treatments for catheters and medical devices before use in clinical settings. The technology for phages to be applied to dry surfaces, e.g., uniforms, curtains, or even sutures for surgery now exists. Clinical trials reported in Clinical Otolaryngology
Phage display
Phage display is a different use of phages involving a library of phages with a variable peptide linked to a surface protein. Each phage genome encodes the variant of the protein displayed on its surface (hence the name), providing a link between the peptide variant and its encoding gene. Variant phages from the library may be selected through their binding affinity to an immobilized molecule (e.g., botulism toxin) to neutralize it. The bound, selected phages can be multiplied by reinfecting a susceptible bacterial strain, thus allowing them to retrieve the peptides encoded in them for further study.Antimicrobial drug discoveryPhage proteins often have antimicrobial activity and may serve as leads for peptidomimetics, i.e. drugs that mimic peptides. Phage-ligand technology makes use of phage proteins for various applications, such as binding of bacteria and bacterial components (e.g. endotoxin) and lysis of bacteria.
Basic research
Bacteriophages are important model organisms for studying principles of evolution and ecology.
Detriments
Dairy industry
Bacteriophages present in the environment can cause cheese to not ferment. In order to avoid this, mixed-strain starter cultures and culture rotation regimes can be used. Genetic engineering of culture microbes – especially Lactococcus lactis and Streptococcus thermophilus – have been studied for genetic analysis and modification to improve phage resistance. This has especially focused on plasmid and recombinant chromosomal modifications. Replication The life cycle of bacteriophages tends to be either a lytic cycle or a lysogenic cycle. In addition, some phages display pseudolysogenic behaviors.
With lytic phages such as the T4 phage, bacterial cells are broken open (lysed) and destroyed after immediate replication of the virion. As soon as the cell is destroyed, the phage progeny can find new hosts to infect.
In contrast, the lysogenic cycle does not result in immediate lysing of the host cell. Those phages able to undergo lysogeny are known as temperate phages. Their viral genome will integrate with host DNA and replicate along with it, relatively harmlessly, or may even become established as a plasmid. The virus remains dormant until host conditions deteriorate, perhaps due to depletion of nutrients, then, the endogenous phages (known as prophages) become active. At this point they initiate the reproductive cycle, resulting in lysis of the host cell. As the lysogenic cycle allows the host cell to continue to survive and reproduce, the virus is replicated in all offspring of the cell. An example of a bacteriophage known to follow the lysogenic cycle and the lytic cycle is the phage lambda of E. coli.
Sometimes prophages may provide benefits to the host bacterium while they are dormant by adding new functions to the bacterial genome, in a phenomenon called lysogenic conversion. Examples are the conversion of harmless strains of Corynebacterium diphtheriae or Vibrio cholerae by bacteriophages to highly virulent ones that cause diphtheria or cholera, respectively. Strategies to combat certain bacterial infections by targeting these toxin-encoding prophages have been proposed.
Attachment and penetration
of bacteriophages attached to a bacterial cell, the viruses are the size and shape of coliphage T1 ]]
<!-- Deleted image removed: -->
Bacterial cells are protected by a cell wall of polysaccharides, which are important virulence factors protecting bacterial cells against both immune host defenses and antibiotics.
Host growth conditions also influence the ability of the phage to attach and invade them. As phage virions do not move independently, they must rely on random encounters with the correct receptors when in solution, such as blood, lymphatic circulation, irrigation, soil water, etc.
Myovirus bacteriophages use a hypodermic syringe-like motion to inject their genetic material into the cell. After contacting the appropriate receptor, the tail fibers flex to bring the base plate closer to the surface of the cell. This is known as reversible binding. Once attached completely, irreversible binding is initiated and the tail contracts, possibly with the help of ATP present in the tail, The injection is accomplished through a sort of bending motion in the shaft by going to the side, contracting closer to the cell and pushing back up. Podoviruses lack an elongated tail sheath like that of a myovirus, so instead, they use their small, tooth-like tail fibers enzymatically to degrade a portion of the cell membrane before inserting their genetic material.
Synthesis of proteins and nucleic acid
Within minutes, bacterial ribosomes start translating viral mRNA into protein. For RNA-based phages, RNA replicase is synthesized early in the process. Proteins modify the bacterial RNA polymerase so it preferentially transcribes viral mRNA. The host's normal synthesis of proteins and nucleic acids is disrupted, and it is forced to manufacture viral products instead. These products go on to become part of new virions within the cell, helper proteins that contribute to the assemblage of new virions, or proteins involved in cell lysis. In 1972, Walter Fiers (University of Ghent, Belgium) was the first to establish the complete nucleotide sequence of a gene and in 1976, of the viral genome of bacteriophage MS2. Some dsDNA bacteriophages encode ribosomal proteins, which are thought to modulate protein translation during phage infection.
Virion assembly
In the case of the T4 phage, the construction of new virus particles involves the assistance of helper proteins that act catalytically during phage morphogenesis. The base plates are assembled first, with the tails being built upon them afterward. The head capsids, constructed separately, will spontaneously assemble with the tails. During assembly of the phage T4 virion, the morphogenetic proteins encoded by the phage genes interact with each other in a characteristic sequence. Maintaining an appropriate balance in the amounts of each of these proteins produced during viral infection appears to be critical for normal phage T4 morphogenesis. The DNA is packed efficiently within the heads. The whole process takes about 15 minutes.
Early studies of bactioriophage T4 (1962-1964) provided an opportunity to gain understanding of virtually all of the genes that are essential for growth of the bacteriophage under laboratory conditions. These studies were made possible by the availability of two classes of conditional lethal mutants. One class of such mutants was referred to as amber mutants. Studies of these two classes of mutants led to considerable insight into the functions and interactions of the proteins employed in the machinery of DNA replication, repair and recombination, and on how viruses are assembled from protein and nucleic acid components (molecular morphogenesis).
Release of virions
Phages may be released via cell lysis, by extrusion, or, in a few cases, by budding. Lysis, by tailed phages, is achieved by an enzyme called endolysin, which attacks and breaks down the cell wall peptidoglycan. An altogether different phage type, the filamentous phage, makes the host cell continually secrete new virus particles. Released virions are described as free, and, unless defective, are capable of infecting a new bacterium. Budding is associated with certain Mycoplasma phages. In contrast to virion release, phages displaying a lysogenic cycle do not kill the host and instead become long-term residents as prophages.
Communication
Research in 2017 revealed that the bacteriophage Φ3T makes a short viral protein that signals other bacteriophages to lie dormant instead of killing the host bacterium. Arbitrium is the name given to this protein by the researchers who discovered it.
Genome structure
Given the millions of different phages in the environment, phage genomes come in a variety of forms and sizes. RNA phages such as MS2 have the smallest genomes, with only a few kilobases. However, some DNA phages such as T4 may have large genomes with hundreds of genes; the size and shape of the capsid varies along with the size of the genome. The largest bacteriophage genomes reach a size of 735 kb. genome. Each box is a gene. Numbers indicate genes (or rather open reading frames). The "early", "middle" (DNA replication), and "late" genes (virus structure), roughly represent the time course of gene expression.]]Bacteriophage genomes can be highly mosaic, i.e. the genome of many phage species appear to be composed of numerous individual modules. These modules may be found in other phage species in different arrangements. Mycobacteriophages, bacteriophages with mycobacterial hosts, have provided excellent examples of this mosaicism. In these mycobacteriophages, genetic assortment may be the result of repeated instances of site-specific recombination and illegitimate recombination (the result of phage genome acquisition of bacterial host genetic sequences). Evolutionary mechanisms shaping the genomes of bacterial viruses vary between different families and depend upon the type of the nucleic acid, characteristics of the virion structure, as well as the mode of the viral life cycle.
Some marine roseobacter phages contain deoxyuridine (dU) instead of deoxythymidine (dT) in their genomic DNA. There is some evidence that this unusual component is a mechanism to evade bacterial defense mechanisms such as restriction endonucleases and CRISPR/Cas systems which evolved to recognize and cleave sequences within invading phages, thereby inactivating them. Other phages have long been known to use unusual nucleotides. In 1963, Takahashi and Marmur identified a Bacillus phage that has dU substituting dT in its genome, and in 1977, Kirnos et al. identified a cyanophage containing 2-aminoadenine (Z) instead of adenine (A).
Systems biology
The field of systems biology investigates the complex networks of interactions within an organism, usually using computational tools and modeling. For example, a phage genome that enters into a bacterial host cell may express hundreds of phage proteins which will affect the expression of numerous host genes or the host's metabolism. All of these complex interactions can be described and simulated in computer models.
Several attempts have been made to map protein–protein interactions among phage and their host. For instance, bacteriophage lambda was found to interact with its host, E. coli, by dozens of interactions. Again, the significance of many of these interactions remains unclear, but these studies suggest that there most likely are several key interactions and many indirect interactions whose role remains uncharacterized. Host resistance Bacteriophages are a major threat to bacteria and prokaryotes have evolved numerous mechanisms to block infection or to block the replication of bacteriophages within host cells. The CRISPR system is one such mechanism as are retrons and the anti-toxin system encoded by them. The Thoeris defense system is known to deploy a unique strategy for bacterial antiphage resistance via NAD+ degradation. Bacteriophage–host symbiosis Temperate phages are bacteriophages that integrate their genetic material into the host as extrachromosomal episomes or as a prophage during a lysogenic cycle. Some temperate phages can confer fitness advantages to their host in numerous ways, including giving antibiotic resistance through the transfer or introduction of antibiotic resistance genes (ARGs), protecting hosts from phagocytosis, protecting hosts from secondary infection through superinfection exclusion, enhancing host pathogenicity, or enhancing bacterial metabolism or growth. Bacteriophage–host symbiosis may benefit bacteria by providing selective advantages while passively replicating the phage genome. In the environment
Metagenomics has allowed the in-water detection of bacteriophages that was not possible previously.
Also, bacteriophages have been used in hydrological tracing and modelling in river systems, especially where surface water and groundwater interactions occur. The use of phages is preferred to the more conventional dye marker because they are significantly less absorbed when passing through ground waters and they are readily detected at very low concentrations. Non-polluted water may contain approximately 2×10<sup>8</sup> bacteriophages per ml.
Bacteriophages are thought to contribute extensively to horizontal gene transfer in natural environments, principally via transduction, but also via transformation. Metagenomics-based studies also have revealed that viromes from a variety of environments harbor antibiotic-resistance genes, including those that could confer multidrug resistance.
Recent findings have mapped the complex and intertwined arsenal of anti-phage defense tools in environmental bacteria. In humans Although phages do not infect humans, there are countless phage particles in the human body, given the extensive human microbiome. One's phage population has been called the human phageome, including the "healthy gut phageome" (HGP) and the "diseased human phageome" (DHP). The active phageome of a healthy human (i.e., actively replicating as opposed to nonreplicating, integrated prophage) has been estimated to comprise dozens to thousands of different viruses.
There is evidence that bacteriophages and bacteria interact in the human gut microbiome both antagonistically and beneficially.
Commonly studied bacteriophages
Among the countless phages, only a few have been studied in detail, including some historically important phage that were discovered in the early days of microbial genetics. These, especially the T-phage, helped to discover important principles of gene structure and function.
* 186 phage
* λ phage
* Φ6 phage
* Φ29 phage
* ΦX174
* Bacteriophage φCb5
* G4 phage
* M13 phage
* MS2 phage (23–28 nm in size)
* N4 phage
* P1 phage
* P2 phage
* P4 phage
* R17 phage
* T2 phage
* T4 phage (169 kbp genome, 200 nm long)
* T7 phage
* T12 phage
Bacteriophage databases and resources
* Phagesdb
* Phagescope See also
* Antibiotic
* Bacterivore
* CrAssphage
* CRISPR
* DNA viruses
* Macrophage
* Phage ecology
* Phage monographs (a comprehensive listing of phage and phage-associated monographs, 1921–present)
* Phagemid
* Polyphage
* RNA viruses
* Transduction
* Viriome
* Virophage, viruses that infect other viruses
References
Bibliography
*
*
*
External links
*
*
*
*
*
*
* | https://en.wikipedia.org/wiki/Bacteriophage | 2025-04-05T18:26:43.715476 |
4187 | Bactericide | A bactericide or bacteriocide, sometimes abbreviated Bcidal, is a substance which kills bacteria. Bactericides are disinfectants, antiseptics, or antibiotics.
However, material surfaces can also have bactericidal properties based solely on their physical surface structure, as for example biomaterials like insect wings.
Disinfectants
The most used disinfectants are those applying
active chlorine (i.e., hypochlorites, chloramines, dichloroisocyanurate and trichloroisocyanurate, wet chlorine, chlorine dioxide, etc.),
active oxygen (peroxides, such as peracetic acid, potassium persulfate, sodium perborate, sodium percarbonate, and urea perhydrate),
iodine (povidone-iodine, Lugol's solution, iodine tincture, iodinated nonionic surfactants),
concentrated alcohols (mainly ethanol, 1-propanol, called also n-propanol and 2-propanol, called isopropanol and mixtures thereof; further, 2-phenoxyethanol and 1- and 2-phenoxypropanols are used),
phenolic substances (such as phenol (also called "carbolic acid"), cresols such as thymol, halogenated (chlorinated, brominated) phenols, such as hexachlorophene, triclosan, trichlorophenol, tribromophenol, pentachlorophenol, salts and isomers thereof),
cationic surfactants, such as some quaternary ammonium cations (such as benzalkonium chloride, cetyl trimethylammonium bromide or chloride, didecyldimethylammonium chloride, cetylpyridinium chloride, benzethonium chloride) and others, non-quaternary compounds, such as chlorhexidine, glucoprotamine, octenidine dihydrochloride etc.),
strong oxidizers, such as ozone and permanganate solutions;
heavy metals and their salts, such as colloidal silver, silver nitrate, mercury chloride, phenylmercury salts, copper sulfate, copper oxide-chloride etc. Heavy metals and their salts are the most toxic and environment-hazardous bactericides and therefore their use is strongly discouraged or prohibited
strong acids (phosphoric, nitric, sulfuric, amidosulfuric, toluenesulfonic acids), pH 13, particularly under elevated temperature (above 60 °C), kills bacteria.
Antiseptics
As antiseptics (i.e., germicide agents that can be used on human or animal body, skin, mucosae, wounds and the like), few of the above-mentioned disinfectants can be used, under proper conditions (mainly concentration, pH, temperature and toxicity toward humans and animals). Among them, some important are
properly diluted chlorine preparations (f.e. Dakin's solution, 0.5% sodium or potassium hypochlorite solution, pH-adjusted to pH 7–8, or 0.5–1% solution of sodium benzenesulfochloramide (chloramine B)), some
iodine preparations, such as iodopovidone in various galenics (ointment, solutions, wound plasters), in the past also Lugol's solution,
peroxides such as urea perhydrate solutions and pH-buffered 0.1 – 0.25% peracetic acid solutions,
alcohols with or without antiseptic additives, used mainly for skin antisepsis,
weak organic acids such as sorbic acid, benzoic acid, lactic acid and salicylic acid
some phenolic compounds, such as hexachlorophene, triclosan and Dibromol, and
cationic surfactants, such as 0.05–0.5% benzalkonium, 0.5–4% chlorhexidine, 0.1–2% octenidine solutions.
Others are generally not applicable as safe antiseptics, either because of their corrosive or toxic nature.
Antibiotics
Bactericidal antibiotics kill bacteria; bacteriostatic antibiotics slow their growth or reproduction.
Bactericidal antibiotics that inhibit cell wall synthesis: the beta-lactam antibiotics (penicillin derivatives (penams), cephalosporins (cephems), monobactams, and carbapenems) and vancomycin.
Also bactericidal are daptomycin, fluoroquinolones, metronidazole, nitrofurantoin, co-trimoxazole, telithromycin.
Aminoglycosidic antibiotics are usually considered bactericidal, although they may be bacteriostatic with some organisms.
As of 2004, the distinction between bactericidal and bacteriostatic agents appeared to be clear according to the basic/clinical definition, but this only applies under strict laboratory conditions and it is important to distinguish microbiological and clinical definitions. The distinction is more arbitrary when agents are categorized in clinical situations. The supposed superiority of bactericidal agents over bacteriostatic agents is of little relevance when treating the vast majority of infections with gram-positive bacteria, particularly in patients with uncomplicated infections and noncompromised immune systems. Bacteriostatic agents have been effectively used for treatment that are considered to require bactericidal activity. Furthermore, some broad classes of antibacterial agents considered bacteriostatic can exhibit bactericidal activity against some bacteria on the basis of in vitro determination of MBC/MIC values. At high concentrations, bacteriostatic agents are often bactericidal against some susceptible organisms. The ultimate guide to treatment of any infection must be clinical outcome.
Surfaces
Material surfaces can exhibit bactericidal properties because of their crystallographic surface structure.
Somewhere in the mid-2000s it was shown that metallic nanoparticles can kill bacteria. The effect of a silver nanoparticle for example depends on its size with a preferential diameter of about 1–10 nm to interact with bacteria.
In 2013, cicada wings were found to have a selective anti-gram-negative bactericidal effect based on their physical surface structure. Mechanical deformation of the more or less rigid nanopillars found on the wing releases energy, striking and killing bacteria within minutes, hence called a mechano-bactericidal effect.
In 2020 researchers combined cationic polymer adsorption and femtosecond laser surface structuring to generate a bactericidal effect against both gram-positive Staphylococcus aureus and gram-negative Escherichia coli bacteria on borosilicate glass surfaces, providing a practical platform for the study of the bacteria-surface interaction.
See also
List of antibiotics
Microbicide
Virucide
References | https://en.wikipedia.org/wiki/Bactericide | 2025-04-05T18:26:43.770481 |
4188 | Brion Gysin | | death_place = Paris, France
| occupation =
| nationality = British/Canadian
| movement = Beat, Postmodern, Asemic writing
| education = Sorbonne, Downside School
}}
Brion Gysin (19 January 1916 – 13 July 1986) was a British-Canadian painter, writer, sound poet, performance artist and inventor of experimental devices.
He is best known for his use of the cut-up technique, alongside his close friend, the novelist William S. Burroughs. With the engineer Ian Sommerville he also invented the Dreamachine, a flicker device designed as an art object to be viewed with the eyes closed. It was in painting and drawing, however, that Gysin devoted his greatest efforts, creating calligraphic works inspired by cursive Japanese "grass" script and Arabic script. Burroughs later stated that "Brion Gysin was the only man I ever respected."
Biography
Early years
John Clifford Brian Gysin was born at the Canadian military hospital in Taplow, Buckinghamshire, England. His mother, Stella Margaret Martin, was a Canadian from Deseronto, Ontario. His father, Leonard Gysin, a captain with the Canadian Expeditionary Force, was killed in action eight months after his son's birth. Stella returned to Canada and settled in Edmonton, Alberta where her son became "the only Catholic day-boy at an Anglican boarding school". Leaving that school at the age of fifteen, Gysin was sent next to Downside School in Stratton-on-the-Fosse, near Bath in England, a prestigious school for boys run by Benedictine monks. Despite attending both Anglican and Roman Catholic schools, Gysin was already an atheist when he left St Joseph's.
Surrealism
In 1934, he moved to Paris to study La Civilisation Française, an open course given at the Sorbonne where he made literary and artistic contacts through Marie Berthe Aurenche, Max Ernst's second wife. He joined the Surrealist Group and began associating with Valentine Hugo, Leonor Fini, Salvador Dalí, Picasso and Dora Maar. A year later, he had his first exhibition at the Galérie Quatre Chemins in Paris with Ernst, Picasso, Hans Arp, Hans Bellmer, Victor Brauner, Giorgio de Chirico, Dalí, Marcel Duchamp, René Magritte, Man Ray and Yves Tanguy. On the day of the preview, however, he was expelled from the Surrealist Group by André Breton, who ordered the poet Paul Éluard to take down his pictures. Gysin was 19 years old. His biographer, John Geiger, suggests the arbitrary expulsion "had the effect of a curse. Years later, he blamed other failures on the Breton incident. It gave rise to conspiracy theories about the powerful interests who seek control of the art world. He gave various explanations for the expulsion, the more elaborate involving 'insubordination' or lèse majesté towards Breton".Morocco and the Beat Hotel
In 1954 in Tangier, Gysin opened a restaurant called The 1001 Nights, with his friend Mohamed Hamri, who was the cook. Gysin hired the Master Musicians of Jajouka from the village of Jajouka to perform alongside entertainment that included acrobats, a dancing boy and fire eaters. The musicians performed there for an international clientele that included William S. Burroughs. Gysin lost the business in 1958, and the restaurant closed permanently. That same year, Gysin returned to Paris, taking lodgings in a flophouse located at 9 rue Gît-le-Cœur that would become famous as the Beat Hotel. Working on a drawing, he discovered a Dada technique by accident:
<blockquote>
William Burroughs and I first went into techniques of writing, together, back in room No. 15 of the Beat Hotel during the cold Paris spring of 1958... Burroughs was more intent on Scotch-taping his photos together into one great continuum on the wall, where scenes faded and slipped into one another, than occupied with editing the monster manuscript... Naked Lunch appeared and Burroughs disappeared. He kicked his habit with Apomorphine and flew off to London to see Dr Dent, who had first turned him on to the cure. While cutting a mount for a drawing in room No. 15, I sliced through a pile of newspapers with my Stanley blade and thought of what I had said to Burroughs some six months earlier about the necessity for turning painters' techniques directly into writing. I picked up the raw words and began to piece together texts that later appeared as "First Cut-Ups" in Minutes to Go (Two Cities, Paris 1960).</blockquote>
When Burroughs returned from London in September 1959, Gysin not only shared his discovery with his friend but the new techniques he had developed for it. Burroughs then put the techniques to use while completing Naked Lunch and the experiment dramatically changed the landscape of American literature. Gysin helped Burroughs with the editing of several of his novels including Interzone, and wrote a script for a film version of Naked Lunch, which was never produced. The pair collaborated on a large manuscript for Grove Press titled The Third Mind, but it was determined that it would be impractical to publish it as originally envisioned. The book later published under that title incorporates little of this material. Interviewed for The Guardian in 1997, Burroughs explained that Gysin was "the only man that I've ever respected in my life. I've admired people, I've liked them, but he's the only man I've ever respected." In 1969, Gysin completed his finest novel, The Process, a work judged by critic Robert Palmer as "a classic of 20th century modernism".
A consummate innovator, Gysin altered the cut-up technique to produce what he called permutation poems in which a single phrase was repeated several times with the words rearranged in a different order with each reiteration. An example of this is "I don't dig work, man / Man, work I don't dig." Many of these permutations were derived using a random sequence generator in an early computer program written by Ian Sommerville. Commissioned by the BBC in 1960 to produce material for broadcast, Gysin's results included "Pistol Poem", which was created by recording a gun firing at different distances and then splicing the sounds. That year, the piece was subsequently used as a theme for the Paris performance of Le Domaine Poetique, a showcase for experimental works by people like Gysin, François Dufrêne, Bernard Heidsieck, and Henri Chopin.
With Sommerville, he built the Dreamachine in 1961. Described as "the first art object to be seen with the eyes closed", the flicker device uses alpha waves in the 8–16 Hz range to produce a change of consciousness in receptive viewers.
and William S. Burroughs stand behind Dreamachine, circa 1997]]Later years
In April 1974, while sitting at a social engagement, Gysin had a very noticeable rectal bleeding. In May he wrote to Burroughs complaining he was not feeling well. A short time later he was diagnosed with colon cancer and began to receive cobalt treatment. Between December 1974 and April 1975, Gysin had to undergo several surgeries, among them a very traumatic colostomy, that drove him to extreme depression and to a suicide attempt. Later, in Fire: Words by Day – Images by Night (1975), a crudely lucid text, he would describe the horrendous ordeal he went through.
In 1985 Gysin was made an American Commander of the French Ordre des Arts et des Lettres. He'd begun to work extensively with noted jazz soprano saxophonist Steve Lacy. They recorded an album in 1986 with French musician Ramuntcho Matta, featuring Gysin singing/rapping his own texts, with performances by Lacy, Don Cherry, Elli Medeiros, Lizzy Mercier Descloux and more. The album was reissued on CD in 1993 by Crammed Discs, under the title Self-Portrait Jumping.
Death
On 13 July 1986 Brion Gysin died of lung cancer. Anne Cumming arranged his funeral and for his ashes to be scattered at the Caves of Hercules in Morocco. An obituary by Robert Palmer published in The New York Times described him as a man who "threw off the sort of ideas that ordinary artists would parlay into a lifetime career, great clumps of ideas, as casually as a locomotive throws off sparks". Later that year a heavily edited version of his novel, The Last Museum, was published posthumously by Faber & Faber (London) and by Grove Press (New York).
As a joke, Gysin had contributed a recipe for marijuana fudge to a cookbook by Alice B. Toklas; it was included for publication, becoming famous under the name Alice B. Toklas brownies.
Burroughs on the Gysin cut-up
In a 1966 interview by Conrad Knickerbocker for The Paris Review, William S. Burroughs explained that Brion Gysin was, to his knowledge, "the first to create cut-ups":
<blockquote>
A friend, Brion Gysin, an American poet and painter, who has lived in Europe for thirty years, was, as far as I know, the first to create cut-ups. His cut-up poem, Minutes to Go, was broadcast by the BBC and later published in a pamphlet. I was in Paris in the summer of 1960; this was after the publication there of Naked Lunch. I became interested in the possibilities of this technique, and I began experimenting myself. Of course, when you think of it, The Waste Land was the first great cut-up collage, and Tristan Tzara had done a bit along the same lines. Dos Passos used the same idea in 'The Camera Eye' sequences in USA. I felt I had been working toward the same goal; thus it was a major revelation to me when I actually saw it being done.</blockquote>
Influence
According to José Férez Kuri, author of Brion Gysin: Tuning in to the Multimedia Age (2003) and co-curator of a major retrospective of the artist's work at The Edmonton Art Gallery in 1998, Gysin's wide range of "radical ideas would become a source of inspiration for artists of the Beat Generation, as well as for their successors (among them David Bowie, Mick Jagger, Keith Haring, and Laurie Anderson)". Other artists include Genesis P-Orridge, John Zorn (as displayed on the 2013's Dreamachines album) and Brian Jones.
Selected bibliography
Gysin is the subject of John Geiger's biography, Nothing Is True Everything Is Permitted: The Life of Brion Gysin, and features in Chapel of Extreme Experience: A Short History of Stroboscopic Light and the Dream Machine, also by Geiger. Man From Nowhere: Storming the Citadels of Enlightenment with William Burroughs and Brion Gysin, a biographical study of Burroughs and Gysin with a collection of homages to Gysin, was authored by Joe Ambrose, Frank Rynne, and Terry Wilson with contributions by Marianne Faithfull, John Cale, William S. Burroughs, John Giorno, Stanley Booth, Bill Laswell, Mohamed Hamri, Keith Haring and Paul Bowles. A monograph on Gysin was published in 2003 by Thames and Hudson.
Works
Prose
*To Master, A Long Goodnight: The History of Slavery in Canada (1946)
* Minutes to Go (1960)
*The Exterminator (1960)
*The Process (1969)
*Brion Gysin Let The Mice In (1973)
*The Third Mind (1978), with William S. Burroughs
*Here To Go: Planet R-101 (first published 1982)
*Stories (1984)
*The Last Museum (1985)
*Living with Islam (2010)
*His Name Was Master (Interviews) (2018)
Radio
*Pistol Poem (1960)
*Permutations (1960)
*I Am (1960)
* No Poets (1962)
* Junk is No Good Baby (1962)
Cinema
*Scenario to Naked Lunch (1973)
Music
*Songs (hat ART, 181) with Steve Lacy
*Junk (1985)
*Self-Portrait Jumping (with Ramuntcho Matta, Don Cherry, Steve Lacy) (1993)
Painting
*Les deux faux interlocuteurs, Gradiva Rediviva Zoe Bertgang, and Signe dans le paysage (Surrealist ink drawings, 1935)
*Sahara Sand (1958)
*The Songs of Marrakech (1959)
*Unit II pink, Unit III yellow, Unit IV orange, Unit V blue (1961)
*Francis in the Beat Hotel (1962)
*For a Stained-Glass Window in Rheims (1963)
*Roller Poem (1971)
*Calligraffiti of Fire (1986)
Sources
Print
<div style"font-size: 95%">Primary sources*
*
*
*
*
*
*
*
*
*
*
*
* Secondary sources
*Morgan, Ted. Literary Outlaw: The Life and Times of William S. Burroughs. New York and London: W.W. Norton & Company, 1988, 2012.
*Kuri, José Férez, ed. Brion Gysin: Tuning in to the Multimedia Age. London: Thames & Hudson, 2003.
*Geiger, John. Nothing Is True Everything Is Permitted: The Life of Brion Gysin. Disinformation Company, 2005.
*Geiger, John. Chapel of Extreme Experience: A Short History of Stroboscopic Light and the Dream Machine. Soft Skull Press, 2003.
*Ambrose, Joe, Frank Rynne, and Terry Wilson. Man From Nowhere: Storming the Citadels of Enlightenment with William Burroughs and Brion Gysin. Williamsburg: Autonomedia, 1992
*Vale, V. William Burroughs, Brion Gysin, Throbbing Gristle. San Francisco: V/Search, 1982.
</div>
See also
*Asemic writing
*Brian Jones Presents the Pipes of Pan at Joujouka
References
External links
* [https://briongysin.com Brion Gysin Website]
* [http://www.ubu.com/sound/gysin.html UBU Sound] Article on Brion Gysin
* [https://web.archive.org/web/20060614155830/http://www.23degrees.net/cutup/ Cutup] The Burroughs & Gysin Non-Linear Adding Machine
* [http://www.jajouka.com/ The Master Musicians of Jajouka led by Bachir Attar] Official website
* [http://www.joujouka.net/ Master Musicians of Joujouka] Official website
* [https://web.archive.org/web/20061105174623/http://www.villagevoice.com/books/0149%2Cashman%2C30459%2C10.html Village Voice] Review of Back in No Time: A Brion Gysin Reader (2001)
* [https://web.archive.org/web/20070927011829/http://www.synergeticpress.com/fictiontitlesnew.html#perilous Perilous Passages] Terry Wilson's account of his "lifetime apprenticeship" with Brion Gysin
* [https://web.archive.org/web/20071107104038/http://www.jajouka.com/williamsburroughs.html William Burroughs's letter] on Gysin and Jajouka
* [http://www.inter-zone.org/dm.html Interzone documentation] on the Dream Machine and free Dream Machine plans
* [http://www.flickerflicker.com Official website of FLicKeR] a film on Brion Gysin and the Dream Machine based on Geiger's book
* [http://www.eyewithwings.net/nechvatal/ThirdMind/wwwTHIRDMIND.htm The Third Mind at Le Palais de Tokyo] by Joseph Nechvatal
* [http://www.crammed.be/index.php?id37&rel_id52 A page on the Self-Portrait Jumping album, including audio excerpts]
* [http://pid.emory.edu/ark:/25593/8zcnz Stuart A. Rose Manuscript, Archives, and Rare Book Library]
Category:1916 births
Category:1986 deaths
Category:Canadian atheists
Category:Canadian people of English descent
Category:Beat Generation writers
Category:Canadian contemporary painters
Category:William S. Burroughs
Category:People educated at Downside School
Category:People from Taplow
Category:20th-century Canadian painters
Category:Canadian male painters
Category:Canadian male novelists
Category:Commandeurs of the Ordre des Arts et des Lettres
Category:20th-century Canadian novelists
Category:English LGBTQ writers
Category:Canadian gay writers
Category:Deaths from lung cancer in France
Category:United States Army personnel of World War II
Category:20th-century Canadian LGBTQ people | https://en.wikipedia.org/wiki/Brion_Gysin | 2025-04-05T18:26:43.802129 |
4190 | Bulgarian | Bulgarian may refer to:
Something of, from, or related to the country of Bulgaria
Bulgarians, a South Slavic ethnic group
Bulgarian language, a Slavic language
Bulgarian alphabet
A citizen of Bulgaria, see Demographics of Bulgaria
Bulgarian culture
Bulgarian cuisine, a representative of the cuisine of Southeastern Europe
See also
List of Bulgarians
Bulgarian name, names of Bulgarians
Bulgarian umbrella, an umbrella with a hidden pneumatic mechanism
Bulgar (disambiguation)
Bulgarian-Serbian War (disambiguation)
Category:Language and nationality disambiguation pages | https://en.wikipedia.org/wiki/Bulgarian | 2025-04-05T18:26:43.822354 |
4191 | BCG vaccine | | MedlinePlus = a682809
| DailyMedID = BCG Vaccine
| pregnancy_AU = <!-- A / B1 / B2 / B3 / C / D / X -->
| pregnancy_category | routes_of_administration Percutaneous, intravesical, intradermal
| ATC_prefix = J07
| ATC_suffix = AN01
| ATC_supplemental =
<!-- Legal status -->
| legal_AU = S4
| legal_AU_comment
| legal_CA = Rx-only
| legal_CA_comment / Schedule D
| legal_UK = POM
| legal_UK_comment
| legal_US = Rx-only
| legal_US_comment
| legal_status JP: Rx-only
<!-- Identifiers -->
| CAS_number | PubChem
| DrugBank = DB12768
| ChemSpiderID = none
| UNII = 8VJE55B0VG
| UNII2 = 5H5854UBMZ
| KEGG = D03063
| KEGG2 = D06466
}}
<!-- Definition and medical uses -->
The Bacillus Calmette–Guérin (BCG) vaccine is a vaccine primarily used against tuberculosis (TB). It is named after its inventors Albert Calmette and Camille Guérin. In countries where tuberculosis or leprosy is common, one dose is recommended in healthy babies as soon after birth as possible.
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Rates of protection against tuberculosis infection vary widely and protection lasts up to 20 years. , the vaccine is given to about 100 million children per year globally. However, it is not commonly administered in the United States.
Medical uses
Tuberculosis
The main use of BCG is for vaccination against tuberculosis. BCG vaccine can be administered after birth intradermally. BCG vaccination can cause a false positive Mantoux test.
The most controversial aspect of BCG is the variable efficacy found in different clinical trials, which appears to depend on geography. Trials in the UK consistently show a 60 to 80% protective effect. Still, those trials conducted elsewhere have shown no protective effect, and efficacy appears to fall the closer one gets to the equator. Differences in effectiveness depend on region, due to factors such as genetic differences in the populations, changes in environment, exposure to other bacterial infections, and conditions in the laboratory where the vaccine is grown, including genetic differences between the strains being cultured and the choice of growth medium.
A systematic review and meta-analysis conducted in 2014 demonstrated that the BCG vaccine reduced infections by 19–27% and reduced progression to active tuberculosis by 71%. The studies included in this review were limited to those that used interferon gamma release assay.
The duration of protection of BCG is not clearly known. In those studies showing a protective effect, the data are inconsistent. The MRC study showed protection waned to 59% after 15 years and to zero after 20 years; however, a study looking at Native Americans immunized in the 1930s found evidence of protection even 60 years after immunization, with only slightly waning in efficacy.
BCG seems to have its greatest effect in preventing miliary tuberculosis or tuberculosis meningitis, so it is still extensively used even in countries where efficacy against pulmonary tuberculosis is negligible.
The 100th anniversary of the BCG vaccine was in 2021.
Efficacy
Several possible reasons for the variable efficacy of BCG in different countries have been proposed. None has been proven, some have been disproved, and none can explain the lack of efficacy in low tuberculosis-burden countries (US) and high tuberculosis-burden countries (India). The reasons for variable efficacy have been discussed at length in a WHO document on BCG.
# Genetic variation in BCG strains: Genetic variation in the BCG strains may explain the variable efficacy reported in different trials.
# Genetic variation in populations: Differences in the genetic makeup of different populations may explain the difference in efficacy. The Birmingham BCG trial was published in 1988. The trial, based in Birmingham, United Kingdom, examined children born to families who originated from the Indian subcontinent (where vaccine efficacy had previously been shown to be zero). The trial showed a 64% protective effect, similar to the figure from other UK trials, thus arguing against the genetic variation hypothesis.
# Interference by nontuberculous mycobacteria: Exposure to environmental mycobacteria (especially Mycobacterium avium, Mycobacterium marinum and Mycobacterium intracellulare) results in a nonspecific immune response against mycobacteria. Administering BCG to someone with a nonspecific immune response against mycobacteria does not augment the response. BCG will, therefore, appear not to be efficacious because that person already has a level of immunity and BCG is not adding to that immunity. This effect is called masking because the effect of BCG is masked by environmental mycobacteria. Clinical evidence for this effect was found in a series of studies performed in parallel in adolescent school children in the UK and Malawi. In this study, the UK school children had a low baseline cellular immunity to mycobacteria which was increased by BCG; in contrast, the Malawi school children had a high baseline cellular immunity to mycobacteria and this was not significantly increased by BCG. Whether this natural immune response is protective is not known. An alternative explanation is suggested by mouse studies; immunity against mycobacteria stops BCG from replicating and so stops it from producing an immune response. This is called the block hypothesis.
# Interference by concurrent parasitic infection: In another hypothesis, simultaneous infection with parasites such as helminthiasis changes the immune response to BCG, making it less effective. As Th1 response is required for an effective immune response to tuberculous infection, concurrent infection with various parasites produces a simultaneous Th2 response, which blunts the effect of BCG.
Mycobacteria
BCG has protective effects against some nontuberculosis mycobacteria.
* Leprosy: BCG has a protective effect against leprosy in the range of 20 to 80%. Cancer
showing granulomatous inflammation of bladder neck tissue due to Bacillus Calmette–Guérin used to treat bladder cancer, H&E stain]]
BCG has been one of the most successful immunotherapies. BCG vaccine has been the "standard of care for patients with bladder cancer (NMIBC)" since 1977. By 2014, more than eight different considered biosimilar agents or strains used to treat nonmuscle-invasive bladder cancer. While the mechanism is unclear, it appears a local immune reaction is mounted against the tumor. Immunotherapy with BCG prevents recurrence in up to 67% of cases of superficial bladder cancer.
* BCG has been evaluated in many studies as a therapy for colorectal cancer. The US biotech company Vaccinogen is evaluating BCG as an adjuvant to autologous tumour cells used as a cancer vaccine in stage II colon cancer.
Method of administration
A pre-injection tuberculin skin test is usually carried out before administering the BCG vaccine. A reactive tuberculin skin test is a contraindication to BCG due to the risk of severe local inflammation and scarring; it does not indicate immunity. BCG is also contraindicated in certain people who have IL-12 receptor pathway defects.
BCG is given as a single intradermal injection at the insertion of the deltoid. If BCG is accidentally given subcutaneously, then a local abscess may form (a "BCG-oma") that can sometimes ulcerate, and may require treatment with antibiotics immediately, otherwise without treatment it could spread the infection, causing severe damage to vital organs. An abscess is not always associated with incorrect administration, and it is one of the more common complications that can occur with the vaccination. Numerous medical studies on the treatment of these abscesses with antibiotics have been done with varying results, but the consensus is once pus is aspirated and analysed, provided no unusual bacilli are present, the abscess will generally heal on its own in a matter of weeks.
The characteristic raised scar that BCG immunization leaves is often used as proof of prior immunization. This scar must be distinguished from that of smallpox vaccination, which it may resemble.
Adverse effects
BCG immunization generally causes some pain and scarring at the site of injection. The main adverse effects are keloids—large, raised scars. The insertion to the deltoid muscle is most frequently used because the local complication rate is smallest when that site is used. Nonetheless, the buttock is an alternative site of administration because it provides better cosmetic outcomes.
Uncommonly, breast and gluteal abscesses can occur due to haematogenous (carried by the blood) and lymphangiomatous spread. Regional bone infection (BCG osteomyelitis or osteitis) and disseminated BCG infection are rare complications of BCG vaccination, but potentially life-threatening. Systemic antituberculous therapy may be helpful in severe complications.
When BCG is used for bladder cancer, around 2.9% of treated patients discontinue immunotherapy due to a genitourinary or systemic BCG-related infection, however while symptomatic bladder BCG infection is frequent, the involvement of other organs is very uncommon. When systemic involvement occurs, liver and lungs are the first organs to be affected (1 week [median] after the last BCG instillation).
If BCG is accidentally given to an immunocompromised patient (e.g., an infant with severe combined immune deficiency), it can cause disseminated or life-threatening infection. The documented incidence of this happening is less than one per million immunizations given. In 2007, the WHO stopped recommending BCG for infants with HIV, even if the risk of exposure to tuberculosis is high, because of the risk of disseminated BCG infection (which is roughly 400 per 100,000 in that higher risk context).
Usage
The person's age and the frequency with which BCG is given have always varied from country to country. The WHO recommends childhood BCG for all countries with a high incidence of tuberculosis and/or high leprosy burden.
Americas
* Brazil introduced universal BCG immunization in 1967–1968, and the practice continues until now. According to Brazilian law, BCG is given again to professionals in the health sector and people close to patients with tuberculosis or leprosy.
* Canadian Indigenous communities receive the BCG vaccine, and in the province of Quebec the vaccine was offered to children until the mid-70s.
* Most countries in Central and South America have universal BCG immunizations, as does Mexico.
* The United States has never used mass immunization of BCG due to the rarity of tuberculosis in the US, relying instead on the detection and treatment of latent tuberculosis.Europe{|class"wikitable"
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Asia
* China: Introduced in the 1930s. Increasingly, it became more widespread after 1949. The majority were inoculated by 1979.
* South Korea, Singapore, Taiwan, and Malaysia. In these countries, BCG was given at birth and again at age 12. In Malaysia and Singapore from 2001, this policy was changed to once only at birth. South Korea stopped re-vaccination in 2008.
* Hong Kong: BCG is given to all newborns.
* Japan: In Japan, BCG was introduced in 1951, given typically at age 6. From 2005 it is administered between five and eight months after birth, and no later than a child's first birthday. BCG was administered no later than the fourth birthday until 2005, and no later than six months from birth from 2005 to 2012; the schedule was changed in 2012 due to reports of osteitis side effects from vaccinations at 3–4 months. Some municipalities recommend an earlier immunization schedule.
* Thailand: In Thailand, the BCG vaccine is given routinely at birth.
* India and Pakistan: India and Pakistan introduced BCG mass immunization in 1948, the first countries outside Europe to do so. In 2015, millions of infants were denied BCG vaccine in Pakistan for the first time due to shortage globally.
* Mongolia: All newborns are vaccinated with BCG. Previously, the vaccine was also given at ages 8 and 15, although this is no longer common practice.
* Philippines: BCG vaccine started in the Philippines in 1979 with the Expanded Program on Immunization.
* Sri Lanka: In Sri Lanka, The National Policy of Sri Lanka is to give BCG vaccination to all newborn babies immediately after birth. BCG vaccination is carried out under the Expanded Programme of Immunisation (EPI).
Middle East
* Israel: BCG was given to all newborns between 1955 and 1982.
* Iran: Iran's vaccination policy was implemented in 1984. Vaccination with the Bacillus Calmette–Guerin (BCG) is among the most important tuberculosis control strategies in Iran [2]. According to Iranian neonatal vaccination policy, BCG has been given as a single dose to children aged <6 years, shortly after birth or at first contact with the health services.Africa* South Africa: In South Africa, the BCG Vaccine is given routinely at birth, to all newborns, except those with clinically symptomatic AIDS. The vaccination site is in the right arm.
* Morocco: In Morocco, the BCG was introduced in 1949. The policy is BCG vaccination at birth, to all newborns.
* Kenya: In Kenya, the BCG Vaccine is given routinely at birth to all newborns.
South Pacific
* Australia: BCG vaccination was used between the 1950s and mid-1980s. BCG has not been part of routine vaccination since the mid-1980s.
* New Zealand: BCG Immunisation was first introduced for 13-year-olds in 1948. Vaccination was phased out from 1963 to 1990. Because the living bacilli evolve to make the best use of available nutrients, they become less well-adapted to human blood and can no longer induce disease when introduced into a human host. Still, they are similar enough to their wild ancestors to provide some immunity against human tuberculosis. The BCG vaccine can be anywhere from 0 to 80% effective in preventing tuberculosis for 15 years; however, its protective effect appears to vary according to geography and the lab in which the vaccine strain was grown.
Several companies make BCG, sometimes using different genetic strains of the bacterium. This may result in different product characteristics. OncoTICE, used for bladder instillation for bladder cancer, was developed by Organon Laboratories (since acquired by Schering-Plough, and in turn acquired by Merck & Co.). A similar application is the product of Onko BCG of the Polish company Biomed-Lublin, which owns the Brazilian substrain M. bovis BCG Moreau which is less reactogenic than vaccines including other BCG strains. Pacis BCG, made from the Montréal (Institut Armand-Frappier) strain, was first marketed by Urocor in about 2002. Urocor was since acquired by Dianon Systems. Evans Vaccines (a subsidiary of PowderJect Pharmaceuticals). Statens Serum Institut in Denmark has marketed a BCG vaccine prepared using Danish strain 1331. The production of BCG Danish strain 1331 and its distribution was later undertaken by AJVaccines company since the ownership transfer of SSI's vaccine production business to AJ Vaccines Holding A/S which took place on 16 January 2017. Japan BCG Laboratory markets its vaccine, based on the Tokyo 172 substrain of Pasteur BCG, in 50 countries worldwide.
According to a UNICEF report published in December 2015, on BCG vaccine supply security, global demand increased in 2015 from 123 to 152.2 million doses. To improve security and to [diversify] sources of affordable and flexible supply," UNICEF awarded seven new manufacturers contracts to produce BCG. Along with supply availability from existing manufacturers, and a "new WHO prequalified vaccine" the total supply will be "sufficient to meet both suppressed 2015 demand carried over to 2016, as well as total forecast demand through 2016–2018."Supply shortage
<!-- Any change to this section title should be reflected in its linking at Sanofi Pasteur#2012 BCG supply shortage -->
In 2011, the Sanofi Pasteur plant flooded, causing problems with mold. The facility, located in Toronto, Ontario, Canada, produced BCG vaccine products made with substrain Connaught such as a tuberculosis vaccine and ImmuCYST, a BCG immunotherapeutic and bladder cancer drug. By April 2012 the FDA had found dozens of documented problems with sterility at the plant including mold, nesting birds and rusted electrical conduits. On 29 October 2014 Health Canada gave the permission for Sanofi to resume production of BCG. A 2018 analysis of the global supply concluded that the supplies are adequate to meet forecast BCG vaccine demand, but that risks of shortages remain, mainly due to dependence of 75 percent of WHO pre-qualified supply on just two suppliers.DriedSome BCG vaccines are freeze dried and become fine powder. Sometimes the powder is sealed with vacuum in a glass ampoule. Such a glass ampoule has to be opened slowly to prevent the airflow from blowing out the powder. Then the powder has to be diluted with saline water before injecting.HistoryThe history of BCG is tied to that of smallpox. By 1865 Jean Antoine Villemin had demonstrated that rabbits could be infected with tuberculosis from humans; by 1868 he had found that rabbits could be infected with tuberculosis from cows and that rabbits could be infected with tuberculosis from other rabbits. Thus, he concluded that tuberculosis was transmitted via some unidentified microorganism (or "virus", as he called it). In 1882 Robert Koch regarded human and bovine tuberculosis as identical. But in 1895, Theobald Smith presented differences between human and bovine tuberculosis, which he reported to Koch. By 1901 Koch distinguished Mycobacterium bovis from Mycobacterium tuberculosis. Following the success of vaccination in preventing smallpox, established during the 18th century, scientists thought to find a corollary in tuberculosis by drawing a parallel between bovine tuberculosis and cowpox: it was hypothesized that infection with bovine tuberculosis might protect against infection with human tuberculosis. In the late 19th century, clinical trials using M. bovis were conducted in Italy with disastrous results, because M. bovis was found to be just as virulent as M. tuberculosis.
Albert Calmette, a French physician and bacteriologist, and his assistant and later colleague, Camille Guérin, a veterinarian, were working at the Institut Pasteur de Lille (Lille, France) in 1908. Their work included subculturing virulent strains of the tuberculosis bacillus and testing different culture media. They noted a glycerin-bile-potato mixture grew bacilli that seemed less virulent and changed the course of their research to see if repeated subculturing would produce a strain that was attenuated enough to be considered for use as a vaccine. The BCG strain was isolated after subculturing 239 times during 13 years from a virulent strain on glycerine potato medium. The research continued throughout World War I until 1919 when the now avirulent bacilli were unable to cause tuberculosis disease in research animals. Calmette and Guerin transferred to the Paris Pasteur Institute in 1919. The BCG vaccine was first used in humans in 1921.
Dr. R. G. Ferguson, working at the Fort Qu'Appelle Sanatorium in Saskatchewan, was among the pioneers in developing the practice of vaccination against tuberculosis. In Canada, more than 600 children from residential schools were used as involuntary participants in BCG vaccine trials between 1933 and 1945. In 1928, the BCG vaccine was adopted by the Health Committee of the League of Nations (predecessor to the World Health Organization (WHO)). Because of opposition, however, it only became widely used after World War II. From 1945 to 1948, relief organizations (International Tuberculosis Campaign or Joint Enterprises) vaccinated over eight million babies in Eastern Europe and prevented the predicted typical increase of tuberculosis after a major war.
The BCG vaccine is very efficacious against tuberculous meningitis in the pediatric age group, but its efficacy against pulmonary tuberculosis appears variable. Some countries have removed the BCG vaccine from routine vaccination. Two countries that have never used it routinely are the United States and the Netherlands (in both countries, it is felt that having a reliable Mantoux test and therefore being able to accurately detect active disease is more beneficial to society than vaccinating against a relatively rare condition).
Other names include "Vaccin Bilié de Calmette et Guérin vaccine" and "Bacille de Calmette et Guérin vaccine".
Research
Tentative evidence exists for a beneficial non-specific effect of BCG vaccination on overall mortality in low-income countries, or for its reducing other health problems including sepsis and respiratory infections when given early, with greater benefit the earlier it is used.
In rhesus macaques, BCG shows improved rates of protection when given intravenously. Some risks must be evaluated before it can be translated to humans.
The University of Oxford Jenner Institute is conducting a study comparing the efficacy of injected versus inhaled BCG vaccine in already-vaccinated adults. Type 1 diabetes , BCG vaccine is in the early stages of being studied in type 1 diabetes (T1D).
COVID-19
Use of the BCG vaccine may provide protection against COVID-19. However, epidemiologic observations in this respect are ambiguous. The WHO does not recommend its use for prevention .
, 20 BCG trials are in various clinical stages. , the results are extremely mixed. A 15-month trial involving people thrice-vaccinated over the two years before the pandemic shows positive results in preventing infection in BCG-naive people with type 1 diabetes. On the other hand, a 5-month trial shows that re-vaccinating with BCG does not help prevent infection in healthcare workers. Both of these trials were double-blind randomized controlled trials.
References
External links
*
Category:Vaccines
Category:Cancer vaccines
Category:Live vaccines
Category:Tuberculosis vaccines
Category:Drugs developed by Schering-Plough
Category:Drugs developed by Merck & Co.
Category:World Health Organization essential medicines (vaccines)
Category:Wikipedia medicine articles ready to translate | https://en.wikipedia.org/wiki/BCG_vaccine | 2025-04-05T18:26:43.911300 |
4192 | Bunsen | Bunsen may refer to:
Christian Charles Josias Bunsen (1791–1860), Prussian diplomat and scholar
Frances Bunsen (1791–1876), or Baroness Bunsen, Welsh painter and author, wife of Christian
Robert Bunsen (1811–1899), German chemist, after whom is named:
Bunsen burner
Bunsen cell
Bunsen crater on the Moon
10361 Bunsen, an asteroid
Bunsen Reaction
The Bunsen–Kirchhoff Award, a German award for spectroscopy
Maurice de Bunsen (1852–1932), British diplomat
Dr. Bunsen Honeydew, fictional character from the Muppet Show
Category:Low German surnames | https://en.wikipedia.org/wiki/Bunsen | 2025-04-05T18:26:43.935009 |
4193 | Common buzzard | | subdivision_ranks = Subspecies
| subdivision = 7–10, see text
| synonyms = Falco buteo
}}
The common buzzard (Buteo buteo) is a medium-to-large bird of prey which has a large range. It is a member of the genus Buteo Over much of its range, it is a year-round resident. However, buzzards from the colder parts of the Northern Hemisphere as well as those that breed in the eastern part of their range typically migrate south for the northern winter, many journeying as far as South Africa.
The common buzzard is an opportunistic predator that can take a wide variety of prey, but it feeds mostly on small mammals, especially rodents such as voles. It typically hunts from a perch. Like most accipitrid birds of prey, it builds a nest, typically in trees in this species, and is a devoted parent to a relatively small brood of young.
Taxonomy
The first formal description of the common buzzard was by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae under the binomial name Falco buteo. The word buteo is Latin for a buzzard. It should not be confused with the Turkey vulture, which is sometimes called a buzzard in American English.
The Buteoninae subfamily originated from and is most diversified in the Americas, with occasional broader radiations that led to common buzzards and other Eurasian and African buzzards. The common buzzard is a member of the genus Buteo, a group of medium-sized raptors with robust bodies and broad wings. The Buteo species of Eurasia and Africa are usually commonly referred to as "buzzards" while those in the Americas are called hawks. Under current classification, the genus includes approximately 28 species, the second most diverse of all extant accipitrid genera behind only Accipiter. DNA testing shows that the common buzzard is fairly closely related to the red-tailed hawk (Buteo jamaicensis) of North America, which occupies a similar ecological niche to the buzzard in that continent. The two species may belong to the same species complex. Three buzzards in Africa are likely closely related to the common buzzard based on genetic materials, the Mountain buzzard (Buteo oreophilus), Forest buzzards (Buteo trizonatus) and the Madagascar buzzard (Buteo brachypterus), to the point where it has been questioned whether they are sufficiently distinct to qualify as full species. However, the distinctiveness of these African buzzards has generally been supported. Genetic studies have further indicated that the modern buzzards of Eurasia and Africa are a relatively young group, showing that they diverged at about 300,000 years ago. Nonetheless, fossils dating earlier than 5 million year old (the late Miocene period) showed Buteo species were present in Europe much earlier than that would imply, although it cannot be stated to a certainty that these would have been related to the extant buzzards.
Subspecies and species splits
Some 16 subspecies have been described in the past and up to 11 are often considered valid, although some authorities accept as few as seven. This highly individually variable race is described below. This is a relatively large and bulky race of buzzard. In males, the wing chord ranges from and the tail from . In comparison, the larger female has a wing chord measuring and tail length of . In both sexes, the tarsus measures in length. In southern Norway, the mean weight of males was reportedly , while that of females was . British buzzards were of intermediate size, 214 males averaging and 261 females averaging . Cramp and Simmons (1980) listed the mean body mass overall of nominate buzzards in Europe overall as in males and in females. This race differs from a typical intermediate of the nominate in being a darker, colder brown both above and below, closer to the darker individuals of the nominate. It averages smaller than most nominate buzzards. The wing chord of males ranges from while that of females ranges from .
The eastern vulpinus group includes:
]]
*B. b. vulpinus: The steppe buzzard breeds as far west as eastern Sweden, in the southern two-thirds of Finland, eastern Estonia, much of Belarus and Ukraine, eastward to the northern Caucacus, northern Kazakhstan, Kyrgyzstan, much of Russia to Altai and south-central Siberia, Tien Shan in China and western Mongolia. B. b. vulpinus is a long-distance migrant. It winters largely in much of eastern and southern Africa. Less frequently and often very discontinuously, steppe buzzards winter in the southern peninsulas of Europe, Arabia and southwestern India in addition to some parts of southeastern Kazakhstan, Uzbekistan and Kyrgyzstan. In the open country favoured on the wintering grounds, steppe buzzards are often seen perched on roadside telephone poles. It at one time was considered a separate species due to differences in size, form, colouring and behaviour (especially in regards to migratory behaviour) but is genetically indistinct from nominate buzzards. Furthermore, the steppe buzzard engages in extensive interbreeding with the nominate race, causing typical characteristics of the two races to mix. The zone of integration runs from Scandinavia through the European continent to the Black Sea, including any part of the overlapping ranges in Sweden, Finland, Estonia, Latvia, Lithuania, western Ukraine and eastern Romania. At times, the fertile hybrids of these two races have been erroneously proposed as races such as B. b. intermedius or B. b. zimmermannae. Intergrade buzzards are commonest where the grey-brown type of pale morphs of vulpinus are predominant. Weights of migrant birds appear to be lower than at other times of year for steppe buzzards. Two surveys of migrant buzzards during their huge spring movement in Eilat, Israel showed 420 birds averaged and 882 birds averaged . In comparison, weights of wintering steppe buzzards was higher, averaging in 35 birds in the former Transvaal (South Africa) and in 160 birds in the Cape Province. Weights of birds from Zambia were similar.
*B. b. menetriesi: This race is found in southern Crimea through the Caucasus to northern Iran and possibly into Turkey. This race has traditionally been listed as a resident race, but some sources consider it a migrant to eastern and southern Africa. Compared to the overlapping steppe buzzard subspecies, it is larger (roughly intermediate between the nominate race and vulpinus) and is duller in overall colour, being sandy below rather than rufous and lacking the bright rufous on the tail. Wing chord is in males and in females. Buzzards found on the islands of Cape Verde off of the coast of western Africa, once referred to as the subspecies B. b. bannermani, and Socotra Island off of the northern peninsula of Arabia, once referred to as the rarely recognized subspecies B. b. socotrae, are now generally thought not to belong to the common buzzard. DNA testing has indicated that these insular buzzards are actually more closely related to the long-legged buzzard (Buteo rufinus) than to the common buzzard. Subsequently, some researchers have advocated full species status for the Cape Verde population, but the placement of these buzzards is generally deemed unclear.
Description
The common buzzard is a medium to large sized raptor that is highly variable in plumage. Most buzzards are distinctly round headed with a somewhat slender bill, relatively long wings that either reach or fall slightly short of the tail tip when perched, a fairly short tail, and somewhat short and mainly bare tarsi. They can appear fairly compact in overall appearance but may also appear large relative to other more common raptorial birds such as kestrels and sparrowhawks. The common buzzard measures between in length with a wingspan.
In Europe, most typical buzzards are dark brown above and on the upperside of the head and mantle, but can become paler and warmer brown with worn plumage. The flight feathers on perched European buzzards are always brown in the nominate subspecies (B. b. buteo). Usually the tail will usually be narrowly barred grey-brown and dark brown with a pale tip and a broad dark subterminal band but the tail in palest birds can show a varying amount a white and reduced subterminal band or even appear almost all white. In European buzzards, the underside coloring can be variable but most typically show a brown-streaked white throat with a somewhat darker chest. A pale U across breast is often present; followed by a pale line running down the belly which separates the dark areas on breast-side and flanks. These pale areas tend to have highly variable markings that tend to form irregular bars. Juvenile buzzards are quite similar to adult in the nominate race, being best told apart by having a paler eye, a narrower subterminal band on the tail and underside markings that appear as streaks rather than bars. Furthermore, juveniles may show variable creamy to rufous fringes to upperwing coverts but these also may not be present. Seen from below in flight, buzzards in Europe typically have a dark trailing edge to the wings. If seen from above, one of the best marks is their broad dark subterminal tail band. Flight feathers of typical European buzzards are largely greyish, the aforementioned dark wing linings at front with contrasting paler band along the median coverts. In flight, paler individuals tend to show dark carpal patches that can appears as blackish arches or commas but these may be indistinct in darker individuals or can appear light brownish or faded in paler individuals. Juvenile nominate buzzards are best told apart from adults in flight by the lack of a distinct subterminal band (instead showing fairly even barring throughout) and below by having less sharp and brownish rather than blackish trailing wing edge. Juvenile buzzards show streaking paler parts of under wing and body showing rather than barring as do adults. Beyond the typical mid-range brownish buzzard, birds in Europe can range from almost uniform black-brown above to mainly white. Extreme dark individuals may range from chocolate brown to blackish with almost no pale showing but a variable, faded U on the breast and with or without faint lighter brown throat streaks. Extreme pale birds are largely whitish with variable widely spaced streaks or arrowheads of light brown about the mid-chest and flanks and may or may not show dark feather-centres on the head, wing-coverts and sometimes all but part of mantle. Individuals can show nearly endless variation of colours and hues in between these extremes and the common buzzard is counted among the most variably plumage diurnal raptors for this reason. One study showed that this variation may actually be the result of diminished single-locus genetic diversity.
Beyond the nominate form (B. b. buteo) that occupies most of the common buzzard's European range, a second main, widely distributed subspecies is known as the steppe buzzard (B. b. vulpinus). The steppe buzzard race shows three main colour morphs, each of which can be predominant in a region of breeding range. It is more distinctly polymorphic rather than just individually very variable like the nominate race. This may be because, unlike the nominate buzzard, the steppe buzzard is highly migratory. Polymorphism has been linked with migratory behaviour. The most common type of steppe buzzard is the rufous morph which gives this subspecies its scientific name (vulpes is Latin for "fox"). This morph comprises a majority of birds seen in passage east of the Mediterranean. Rufous morph buzzards are a paler grey-brown above than most nominate B. b. buteo. Compared to the nominate race, rufous vulpinus show a patterning not dissimilar but generally far more rufous-toned on head, the fringes to mantle wing coverts and, especially, on the tail and the underside. The head is grey-brown with rufous tinges usually while the tail is rufous and can vary from almost unmarked to thinly dark-barred with a subterminal band. The underside can be uniformly pale to dark rufous, barred heavily or lightly with rufous or with dusky barring, usually with darker individuals showing the U as in nominate but with a rufous hue. The pale morph of the steppe buzzard is commonest in the west of its subspecies range, predominantly seen in winter and migration at the various land bridge of the Mediterranean. As in the rufous morph, the pale morph vulpinus is grey-brown above but the tail is generally marked with thin dark bars and a subterminal band, only showing rufous near the tip. The underside in the pale morph is greyish-white with dark grey-brown or somewhat streaked head to chest and barred belly and chest, occasionally showing darker flanks that can be somewhat rufous. Dark morph vulpinus tend to be found in the east and southeast of the subspecies range and are easily outnumbered by rufous morph while largely using similar migration points. Dark morph individuals vary from grey-brown to much darker blackish-brown, and have a tail that is dark grey or somewhat mixed grey and rufous, is distinctly marked with dark barring and has a broad, black subterminal band. Dark morph vulpinus have a head and underside that is mostly uniform dark, from dark brown to blackish-brown to almost pure black. Rufous morph juveniles are often distinctly paler in ground colour (ranging even to creamy-grey) than adults with distinct barring below actually increased in pale morph type juvenile. Pale and rufous morph juveniles can only be distinguished from each other in extreme cases. Dark morph juveniles are more similar to adult dark morph vulpinus but often show a little whitish streaking below, and like all other races have lighter coloured eyes and more evenly barred tails than adults. Steppe buzzards tend to appear smaller and more agile in flight than nominate whose wing beats can look slower and clumsier. In flight, rufous morph vulpinus have their whole body and underwing varying from uniform to patterned rufous (if patterning present, it is variable, but can be on chest and often thighs, sometimes flanks, pale band across median coverts), while the under-tail usually paler rufous than above. Whitish flight feathers are more prominent than in nominate and more marked contrast with the bold dark brown band along the trailing edges. Markings of pale vulpinus as seen in flight are similar to rufous morph (such as paler wing markings) but more greyish both on wings and body. In dark morph vulpinus the broad black trailing edges and colour of body make whitish areas of inner wing stand out further with an often bolder and blacker carpal patch than in other morphs. As in nominate, juvenile vulpinus (rufous/pale) tend to have much less distinct trailing edges, general streaking on body and along median underwing coverts. Dark morph vulpinus resemble adult in flight more so than other morphs.Similar species
s of Africa are extremely easy to mistake for juvenile common buzzards of the steppe race that come to winter in Africa.]]
The common buzzard is often confused with other raptors especially in flight or at a distance. Inexperienced and over-enthusiastic observers have even mistaken darker birds for the far larger and differently proportioned golden eagle (Aquila chrysaetos) and also dark birds for western marsh harrier (Circus aeruginosus) which also flies in a dihedral but is obviously relatively much longer and slenderer winged and tailed and with far different flying methods. Also buzzards may possibly be confused with dark or light morph booted eagles (Hieraeetus pennatus), which are similar in size, but the eagle flies on level, parallel-edged wings which usually appear broader, has a longer squarer tail, with no carpal patch in pale birds and all dark flight feathers but for whitish wedge on inner primaries in dark morph ones. Pale individuals are sometimes also mistaken with pale morph short-toed eagles (Circaetus gallicus) which are much larger with a considerably bigger head, longer wings (which are usually held evenly in flight rather than in a dihedral) and paler underwing lacking any carpal patch or dark wing lining. While less individually variable in Europe, the honey buzzard is more extensive polymorphic on underparts than even the common buzzard. The most common morph of the adult European honey buzzard is heavily and rufous barred on the underside, quite different from the common buzzard, however the brownish juvenile much more resembles an intermediate common buzzard. Honey buzzards flap with distinctively slower and more even wing beats than common buzzard. The wings are also lifted higher on each upstroke, creating a more regular and mechanical effect, furthermore their wings are held slightly arched when soaring but not in a V. On the honey buzzard, the head appears smaller, the body thinner, the tail longer and the wings narrower and more parallel edged. The steppe buzzard race is particularly often mistaken for juvenile European honey buzzards, to the point where early observers of raptor migration in Israel considered distant individuals indistinguishable. However, when compared to a steppe buzzard, the honey buzzard has distinctly darker secondaries on the underwing with fewer and broader bars and more extensive black wing-tips (whole fingers) contrasting with a less extensively pale hand.
Wintering steppe buzzards may live alongside mountain buzzards and especially with forest buzzard while wintering in Africa. The juveniles of steppe and forest buzzards are more or less indistinguishable and only told apart by proportions and flight style, the latter species being smaller, more compact, having a smaller bill, shorter legs and shorter and thinner wings than a steppe buzzard. However, size is not diagnostic unless side by side as the two buzzards overlap in this regard. Most reliable are the species wing proportions and their flight actions. Forest buzzard have more flexible wing beats interspersed with glides, additionally soaring on flatter wings and apparently never engage in hovering. Adult forest buzzards compared to the typical adult steppe buzzard (rufous morph) are also similar, but the forest typically has a whiter underside, sometimes mostly plain white, usually with heavy blotches or drop-shaped marks on abdomen, with barring on thighs, more narrow tear-shaped on chest and more spotted on leading edges of underwing, usually lacking marking on the white U across chest (which is otherwise similar but usually broader than that of vulpinus). In comparison, the mountain buzzard, which is more similar in size to the steppe buzzard and slightly larger than the forest buzzard, is usually duller brown above than a steppe buzzard and is more whitish below with distinctive heavy brown blotches from breasts to the belly, flanks and wing linings while juvenile mountain buzzard is buffy below with smaller and streakier markings. The steppe buzzard when compared to another African species, the red-necked buzzard (Buteo auguralis), which has red tail similar to vulpinus, is distinct in all other plumage aspects despite their similar size. The latter buzzard has a streaky rufous head and is white below with a contrasting bold dark chest in adult plumage and, in juvenile plumage, has heavy, dark blotches on the chest and flanks with pale wing-linings. Jackal and augur buzzards (Buteo rufofuscus & augur), also both rufous on the tail, are larger and bulkier than steppe buzzards and have several distinctive plumage characteristics, most notably both having their own striking, contrasting patterns of black-brown, rufous and cream.Distribution and habitat
The common buzzard is found throughout several islands in the eastern Atlantic islands, including the Canary Islands and Azores and almost throughout Europe. It is today found in Ireland and in nearly every part of Scotland, Wales and England. In mainland Europe, remarkably, there are no substantial gaps without breeding common buzzards from Portugal and Spain to Greece, Estonia, Belarus and Ukraine, though are present mainly only in the breeding season in much of the eastern half of the latter three countries. They are also present in all larger Mediterranean islands such as Corsica, Sardinia, Sicily and Crete. Further north in Scandinavia, they are found mainly in southeastern Norway (though also some points in southwestern Norway close to the coast and one section north of Trondheim), just over the southern half of Sweden and hugging over the Gulf of Bothnia to Finland where they live as a breeding species over nearly two-thirds of the land.
The common buzzard reaches its northern limits as a breeder in far eastern Finland and over the border to European Russia, continuing as a breeder over to the narrowest straits of the White Sea and nearly to the Kola Peninsula. In these northern quarters, the common buzzard is present typically only in summer but is a year-around resident of a hearty bit of southern Sweden and some of southern Norway.
Non-breeding populations occur, either as migrants or wintering birds, in southwestern India, Israel, Lebanon, Syria, Egypt (northeastern), northern Tunisia (and far northwestern Algeria), northern Morocco, near the coasts of The Gambia, Senegal and far southwestern Mauritania and Ivory Coast (and bordering Burkina Faso). In eastern and central Africa, it is found in winter from southeastern Sudan, Eritrea, about two-thirds of Ethiopia, much of Kenya (though apparently absent from the northeast and northwest), Uganda, southern and eastern Democratic Republic of the Congo, and more or less the entirety of southern Africa from Angola across to Tanzania down the remainder of the continent (but for an apparent gap along the coast from southwestern Angola to northwestern South Africa).
Habitat
The common buzzard generally inhabits the interface of woodlands and open grounds; most typically the species lives in forest edge, small woods or shelterbelts with adjacent grassland, arables or other farmland. It acquits to open moorland as long as there is some trees for perch hunting and nesting use. The woods they inhabit may be coniferous, temperate broadleaf and mixed forests and temperate deciduous forest with occasional preferences for the local dominant tree. It is absent from treeless tundra, as well as the Subarctic where the species almost entirely gives way to the rough-legged buzzard. The species may be found to some extent in both in mountainous or flat country. Although adaptable to and sometimes seen in wetlands and in coastal areas, buzzards are often considered more of an upland species and neither appear to be regularly attracted to or to strongly avoid bodies of waters in non-migratory times. Buzzards in well-wooded areas of eastern Poland largely used large, mature stands of trees that were more humid, richer and denser than prevalent in surrounding area, but showed preference for those within of openings. Mostly resident buzzards live in lowlands and foothills, but they can live in timbered ridges and uplands as well as rocky coasts, sometimes nesting on cliff ledges rather than trees. Buzzards may live from sea level to elevations of , breeding mostly below but they can winter to an elevation of and migrates easily to . Common buzzards are fairly adaptable to agricultural lands but will show can show regional declines in apparent response to agriculture. Changes to more extensive agricultural practices were shown to reduce buzzard populations in western France where reduction of "hedgerows, woodlots and grasslands areas" caused a decline of buzzards and in Hampshire, England where more extensive grazing by free-range cattle and horses led to declines of buzzards, probably largely due to the seeming reduction of small mammal populations there. On the contrary, buzzards in central Poland adapted to removal of pine trees and reduction of rodent prey by changing nest sites and prey for a time with no strong change in their local numbers. Extensive urbanization seems to negatively affect buzzards, this species being generally less adaptable to urban areas than their New World counterparts, the red-tailed hawk. Although peri-urban areas can actually increase potential prey populations in a location at times, individual buzzard mortality, nest disturbances and nest site habitat degradation rises significantly in such areas. Common buzzards are fairly adaptive to rural areas as well as suburban areas with parks and large gardens, in addition to such areas if they're near farms.
Behaviour
The common buzzard is a typical Buteo in much of its behaviour. It is most often seen either soaring at varying heights or perched prominently on tree tops, bare branches, telegraph poles, fence posts, rocks or ledges, or alternately well inside tree canopies. Buzzards will also stand and forage on the ground. In resident populations, it may spend more than half of its day inactively perched. Furthermore, it has been described a "sluggish and not very bold" bird of prey. It is a gifted soarer once aloft and can do so for extended periods but can appear laborious and heavy in level flight, more so nominate buzzards than steppe buzzards. In Israel, migrant buzzards rarely soar all that high (maximum above ground) due to the lack of mountain ridges that in other areas typically produce flyways; however tail-winds are significant and allow birds to cover a mean of .Migration
, where buzzards have one of the largest raptor migrations in the world.]]
The common buzzard is aptly described as a partial migrant. The autumn and spring movements of buzzards are subject to extensive variation, even down to the individual level, based on a region's food resources, competition (both from other buzzards and other predators), extent of human disturbance and weather conditions. Short-distance movements are the norm for juveniles and some adults in autumn and winter, but more adults in central Europe and the British Isles remain on their year-around residence than do not. Even for first year juvenile buzzards dispersal may not take them very far. In England, 96% of first-years moved in winter to less than from their natal site. Southwestern Poland was recorded to be a fairly important wintering grounds for central European buzzards in early spring that apparently travelled from somewhat farther north, in winter average density was a locally high 2.12 individual per square kilometer. In Bulgaria, the mean wintering density was 0.34 individual per square kilometer, and buzzards showed a preference for agricultural over forested areas. Similar habitat preferences were recorded in northeastern Romania, where buzzard density was 0.334–0.539 individuals per square kilometer. The nominate buzzards of Scandinavia are somewhat more strongly migratory than most central European populations. However, birds from Sweden show some variation in migratory behaviours. A maximum of 41,000 individuals have been recorded at one of the main migration sites within southern Sweden in Falsterbo. In southern Sweden, winter movements and migration was studied via observation of buzzard colour. White individuals were substantially more common in southern Sweden rather than further north in their Swedish range. The southern population migrates earlier than intermediate to dark buzzards, in both adults and juveniles. A larger proportion of juveniles than of adults migrate in the southern population. Especially adults in the southern population are resident to a higher degree than more northerly breeders.
The entire population of the steppe buzzard is strongly migratory, covering substantial distances during migration. In no part of the range do steppe buzzards use the same summering and wintering grounds. Steppe buzzards are slightly gregarious in migration, and travel in variously sized flocks. This race migrates in September to October often from Asia Minor to the Cape of Africa in about a month but does not cross water, following around the Winam Gulf of Lake Victoria rather than crossing the several kilometer wide gulf. Similarly, they will funnel along both sides of the Black Sea. Migratory behavior of steppe buzzards mirrors those of broad-winged & Swainson's hawks (Buteo platypterus & swainsoni) in every significant way as similar long-distance migrating Buteos, including trans-equatorial movements, avoidance of large bodies of waters and flocking behaviour. Between 150,000 and nearly 466,000 Steppe Buzzard have been recorded migrating through Israel during spring, making this not only the most abundant migratory raptor here but one of the largest raptor migrations anywhere in the world. Migratory movements of southern Africa buzzards largely occur along the major mountain ranges, such as the Drakensberg and Lebombo Mountains. The onset of migratory movement for steppe buzzards back to the breeding grounds in southern Africa is mainly in March, peaking in the second week. In last 50 years, it was recorded that nominate buzzards are typically migrating shorter distances and wintering further north, possibly in response to climate change, resulting in relatively smaller numbers of them at migration sites. They are also extending their breeding range possibly reducing/supplanting steppe buzzards.
Vocalizations
Resident populations of common buzzards tend to vocalize all year around, whereas migrants tend to vocalize only during the breeding season. Both nominate buzzards and steppe buzzards (and their numerous related subspecies within their types) tend to have similar voices. The main call of the species is a plaintive, far-carrying pee-yow or peee-oo, used as both contact call and more excitedly in aerial displays. Their call is sharper, more ringing when used in aggression, tends to be more drawn-out and wavering when chasing intruders, sharper, more yelping when as warning when approaching the nest or shorter and more explosive when called in alarm. Other variations of their vocal performances include a cat-like mew, uttered repeatedly on the wing or when perched, especially in display; a repeated mah has been recorded as uttered by pairs answering each other, further chuckles and croaks have also been recorded at nests. Juveniles can usually be distinguished by the discordant nature of their calls compared to those of adults.
Dietary biology
The common buzzard is a generalist predator which hunts a wide variety of prey given the opportunity. Their prey spectrum extents to a wide variety of vertebrates including mammals, birds (from any age from eggs to adult birds), reptiles, amphibians and, rarely, fish, as well as to various invertebrates, mostly insects. Young animals are often attacked, largely the nidifugous young of various vertebrates. In total well over 300 prey species are known to be taken by common buzzards. Furthermore, prey size can vary from tiny beetles, caterpillars and ants to large adult grouse and rabbits up to nearly twice their body mass. Mean body mass of vertebrate prey was estimated at in Belarus. At times, they will also subsist partially on carrion, usually of dead mammals or fish. Hunting in relatively open areas has been found to increase hunting success whereas more complete shrub cover lowered success. A majority of prey is taken by dropping from perch, and is normally taken on ground. Alternately, prey may be hunted in a low flight. This species tends not to hunt in a spectacular stoop but generally drops gently then gradually accelerate at bottom with wings held above the back. Sometimes, the buzzard also forages by random glides or soars over open country, wood edges or clearings. Perch hunting may be done preferentially but buzzards fairly regularly also hunt from a ground position when the habitat demands it. Outside the breeding season, as many 15–30 buzzards have been recorded foraging on ground in a single large field, especially juveniles. Normally the rarest foraging type is hovering. A study from Great Britain indicated that hovering does not seem to increase hunting success.Mammals
.]]
A high diversity of rodents may be taken given the chance, as around 60 species of rodent have been recorded in the foods of common buzzards. In southern Scotland, field voles were the best-represented species in pellets, accounting for 32.1% of 581 pellets. In southern Norway, field voles were again the main food in years with peak vole numbers, accounting for 40.8% of 179 prey items in 1985 and 24.7% of 332 prey items in 1994. Altogether, rodents amount to 67.6% and 58.4% of the foods in these respective peak vole years. However, in low vole population years, the contribution of rodents to the diet was minor. Common voles were the main foods recorded in central Slovakia, accounting for 26.5% of 606 prey items. The common vole, or other related vole species at times, were the main foods as well in Ukraine (17.2% of 146 prey items) ranging east to Russia in the Privolshky Steppe Nature Reserve (41.8% of 74 prey items) and in Samara (21.4% of 183 prey items). In Belarus, voles, including Microtus species and bank voles (Myodes glareolus), accounted for 34.8% of the biomass on average in 1065 prey items from different study areas over 4 years.
Other rodents are taken largely opportunistically rather than by preference. Several wood mice (Apodemus ssp.) are known to be taken quite frequently but given their preference for activity in deeper woods than the field-forest interfaces preferred, they are rarely more than secondary food items. All four ground squirrels that range (mostly) into eastern Europe are also known to be common buzzard prey but little quantitative analysis has gone into how significant such predator-prey relations are. Rodent prey taken have ranged in size from the Eurasian harvest mouse (Micromys minutus) to the non-native, muskrat (Ondatra zibethicus). Other rodents taken either seldom or in areas where the food habits of buzzards are spottily known include flying squirrels, marmots (presumably very young if taken alive), chipmunks, spiny rats, hamsters, mole-rats, gerbils, jirds and jerboas and occasionally hearty numbers of dormice, although these are nocturnal. Surprisingly little research has gone into the diets of wintering steppe buzzards in southern Africa, considering their numerous status there. However, it has been indicated that the main prey remains consist of rodents such as the four-striped grass mouse (Rhabdomys pumilio) and Cape mole-rats (Georychus capensis).
Other than rodents, two other groups of mammals can be counted as significant to the diet of common buzzards. One of these main prey types of import in the diets of common buzzards are leporids or lagomorphs, especially the European rabbit (Oryctolagus cuniculus'') where it is found in numbers in a wild or feral state. In all dietary studies from Scotland, rabbits were highly important to the buzzard's diet. In southern Scotland, rabbits constituted 40.8% of remains at nests and 21.6% of pellet contents, while lagomorphs (mainly rabbits but also some young hares) were present in 99% of remains in Moray, Scotland. The nutritional richness relative to the commonest prey elsewhere, such as voles, might account for the high productivity of buzzards here. For example, clutch sizes were twice as large on average where rabbits were common (Moray) than were where they were rare (Glen Urquhart). In northern Ireland, an area of interest because it is devoid of any native vole species, rabbits were again the main prey. Here, lagomorphs constituted 22.5% of prey items by number and 43.7% by biomass. While rabbits are non-native, albeit long-established, in the British Isles, in their native area of the Iberian peninsula, rabbits are similarly significant to the buzzard's diet. In Murcia, Spain, rabbits were the most common mammal in the diet, making up 16.8% of 167 prey items. Similarly, in different areas and the mean weight of brown hares taken in Finland was around . One young mountain hares (Lepus timidus) taken in Norway was estimated to about .
The other significant mammalian prey type is insectivores, among which more than 20 species are known to be taken by this species, including nearly all the species of shrew, mole and hedgehog found in Europe. Moles are taken particularly often among this order, since as is the case with "vole-holes", buzzards probably tend to watch molehills in fields for activity and dive quickly from their perch when one of the subterranean mammals pops up. The most widely found mole in the buzzard's northern range is the European mole (Talpa europaea) and this is one of the more important non-rodent prey items for the species. This species was present in 55% of 101 remains in Glen Urquhart, Scotland and was the second most common prey species (18.6%) in 606 prey items in Slovakia. In Bari, Italy, the Roman mole (Talpa romana), of similar size to the European species, was the leading identified mammalian prey, making up 10.7% of the diet. The full-size range of insectivores may be taken by buzzards, ranging from the world's smallest mammal (by weight), the Etruscan shrew (Suncus etruscus) to arguably the heaviest insectivore, the European hedgehog (Erinaceus europaeus). Mammalian prey for common buzzards other than rodents, insectivores, and lagomorphs is rarely taken. Occasionally, some weasels such as least weasel (Mustela nivalis) and stoat (Mustela erminea) are taken, and remains of young pine martens (Martes martes) and adult european polecats (Mustela putorius) was found in buzzard nest. Numerous larger mammals, including medium-sized carnivores such as dogs, cats and foxes and various ungulates, are sometimes eaten as carrion by buzzards, mainly during lean winter months. Still-borns of deer are also visited with some frequency.Birds
mobs a buzzard. Buzzards will readily prey on crows, especially their fledglings.]]
When attacking birds, common buzzards chiefly prey on nestlings and fledglings of small to medium-sized birds, largely passerines but also a variety of gamebirds, but sometimes also injured, sickly or unwary but healthy adults. While capable of overpowering birds larger than itself, the common buzzard is usually considered to lack the agility necessary to capture many adult birds, even gamebirds which would presumably be weaker fliers considering their relatively heavy bodies and small wings. On the contrary, in southern Scotland, even though the buzzards were taking relatively large bird prey, largely red grouse (Lagopus lagopus scotica), 87% of birds taken were reportedly adults. They also prey on a wide size range of birds, ranging down to Europe's smallest bird, the goldcrest (Regulus regulus). Other assorted avian prey has included a few species of waterfowl, most available pigeons and doves, cuckoos, swifts, grebes, rails, nearly 20 assorted shorebirds, tubenoses, hoopoes, bee-eaters and several types of woodpecker. Birds with more conspicuous or open nesting areas or habits are more likely to have fledglings or nestlings attacked, such as water birds, while those with more secluded or inaccessible nests, such as pigeons/doves and woodpeckers, adults are more likely to be hunted.
Reptiles and amphibians
but was flushed from its catch.]]
prey in Armenia.]]
The common buzzard may be the most regular avian predator of reptiles and amphibians in Europe apart from the sections where they are sympatric with the largely snake-eating short-toed eagle. In total, the prey spectrum of common buzzards include nearly 50 herpetological prey species. In studies from northern and southern Spain, the leading prey numerically were both reptilian, although in Biscay (northern Spain) the leading prey (19%) was classified as "unidentified snakes". In Murcia, the most numerous prey was the ocellated lizard (Timon lepidus), at 32.9%. In total, at Biscay and Murcia, reptiles accounted for 30.4% and 35.9% of the prey items, respectively. Findings were similar in a separate study from northeastern Spain, where reptiles amounted to 35.9% of prey. In Bari, Italy, reptiles were the main prey, making up almost exactly half of the biomass, led by the large green whip snake (Hierophis viridiflavus), at 24.2% of food mass. However, in at least one case, the corpse of a female buzzard was found envenomed over the body of an adder that it had killed. In some parts of range, the common buzzard acquires the habit of taking many frogs and toads. For wintering steppe buzzards in Zimbabwe, one source went so far as to refer to them as primarily insectivorous, apparently being somewhat locally specialized to feeding on termites. Stomach contents in buzzards from Malawi apparently consisted largely of grasshoppers (alternately with lizards). Fish tend to be the rarest class of prey found in the common buzzard's foods. There are a couple cases of predation of fish detected in the Netherlands, while elsewhere they have been known to have fed upon eels and carp.Interspecies predatory relationships
being mobbed by a pair of common buzzards over the Isle of Canna, as the eagle will sometimes prey on the buzzard.]]
Common buzzards co-occur with dozens of other raptorial birds through their breeding, resident and wintering grounds. There may be many other birds that broadly overlap in prey selection to some extent. Furthermore, their preference for interfaces of forest and field is used heavily by many birds of prey. Some of the most similar species by diet are the common kestrel (Falco tinniculus), hen harrier (Circus cyaenus) and lesser spotted eagle (Clanga clanga), not to mention nearly every European species of owl, as all but two may locally prefer rodents such as voles in their diets. Diet overlap was found to be extensive between buzzards and red foxes (Vulpes vulpes) in Poland, with 61.9% of prey selection overlapping by species although the dietary breadth of the fox was broader and more opportunistic. Both fox dens and buzzard roosts were found to be significantly closer to high vole areas relative to the overall environment here. The only other widely found European Buteo, the rough-legged buzzard, comes to winter extensively with common buzzards. It was found in southern Sweden, habitat, hunting and prey selection often overlapped considerably. Rough-legged buzzards appear to prefer slightly more open habitat and took slightly fewer wood mice than common buzzard. Roughlegs also hover much more frequently and are more given to hunting in high winds. The two buzzards are aggressive towards one another and excluded each other from winter feeding territories in similar ways to the way they exclude conspecifics. In northern Germany, the buffer of their habitat preferences apparently accounted for the lack of effect on each other's occupancy between the two buzzard species.
A more direct negative effect has been found in buzzard's co-existence with northern goshawk (Accipiter gentilis). Despite the considerable discrepancy of the two species dietary habits, habitat selection in Europe is largely similar between buzzards and goshawks. Goshawks are slightly larger than buzzards and are more powerful, agile and generally more aggressive birds, and so they are considered dominant. In studies from Germany and Sweden, buzzards were found to be less disturbance sensitive than goshawks but were probably displaced into inferior nesting spots by the dominant goshawks. The exposure of buzzards to a dummy goshawk was found to decrease breeding success whereas there was no effect on breeding goshawks when they were exposed to a dummy buzzard. In many cases, in Germany and Sweden, goshawks displaced buzzards from their nests to take them over for themselves. In Poland, buzzards productivity was correlated to prey population variations, particularly voles which could vary from 10 to 80 per hectare, whereas goshawks were seemingly unaffected by prey variations; buzzards were found here to number 1.73 pair per against goshawk 1.63 pair per . In contrast, the slightly larger counterpart of buzzards in North America, the red-tailed hawk (which is also slightly larger than American goshawks, the latter averaging smaller than European ones) are more similar in diet to goshawks there. Redtails are not invariably dominated by goshawks and are frequently able to outcompete them by virtue of greater dietary and habitat flexibility. Furthermore, red-tailed hawks are apparently equally capable of killing goshawks as goshawks are of killing them (killings are more one-sided in buzzard-goshawk interactions in favour of the latter). Other raptorial birds, including many of similar or mildly larger size than common buzzards themselves, may dominate or displace the buzzard, especially with aims to take over their nests. Species such as the black kite (Milvus migrans), booted eagle (Hieraeetus pennatus) and the lesser spotted eagle have been known to displace actively nesting buzzards, although in some cases the buzzards may attempt to defend themselves. The broad range of accipitrids that take over buzzard nests is somewhat unusual. More typically, common buzzards are victims of nest parasitism to owls and falcons, as neither of these other kinds of raptorial birds builds their own nests, but these may regularly take up occupancy on already abandoned or alternate nests rather than ones the buzzards are actively using. Even with birds not traditionally considered raptorial, such as common ravens, may compete for nesting sites with buzzards. In urban vicinities of southwestern England, it was found that peregrine falcons (Falco peregrinus) were harassing buzzards so persistently, in many cases resulting in injury or death for the buzzards, the attacks tending to peak during the falcon's breeding seasons and tend to be focused on subadult buzzards. Despite often being dominated in nesting site confrontations by even similarly sized raptors, buzzards appear to be bolder in direct competition over food with other raptors outside of the context of breeding, and has even been known to displace larger birds of prey such as red kites (Milvus milvus) and female buzzards may also dominate male goshawks (which are much smaller than the female goshawk) at disputed kills.
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Common buzzards are occasionally threatened by predation by other raptorial birds. Northern goshawks have been known to have preyed upon buzzards in a few cases. Much larger raptors are known to have killed a few buzzards as well, including steppe eagles (Aquila nipalensis) on migrating steppe buzzards in Israel. Further instances of predation on buzzards have involved golden, eastern imperial (Aquila heliaca), Bonelli's (Aquila fasciata) and white-tailed eagles (Haliaeetus albicilla) in Europe. Besides preying on adult buzzard, white-tailed eagles have been known to raise buzzards with their own young. These are most likely cases of eagles carrying off young buzzard nestlings with the intention of predation but, for unclear reasons, not killing them. Instead the mother eagle comes to brood the young buzzard. Despite the difference of the two species diets, white-tailed eagles are surprisingly successful at raising young buzzards (which are conspicuously much smaller than their own nestlings) to fledging. Studies in Lithuania of white-tailed eagle diets found that predation on common buzzards was more frequent than anticipated, with 36 buzzard remains found in 11 years of study of the summer diet of the white-tailed eagles. While nestling buzzards were multiple times more vulnerable to predation than adult buzzards in the Lithuanian data, the region's buzzards expelled considerable time and energy during the late nesting period trying to protect their nests. The most serious predator of common buzzards, however, is almost certainly the Eurasian eagle-owl (Bubo bubo). This is a very large owl with a mean body mass about three to four times greater than that of a buzzard. The eagle-owl, despite often taking small mammals that broadly overlap with those selected by buzzards, is considered a "super-predator" that is a major threat to nearly all co-existing raptorial birds, capably destroying whole broods of other raptorial birds and dispatching adult raptors even as large as eagles. Due to their large numbers in edge habitats, common buzzards frequently feature heavily in the eagle-owl's diet. Eagle-owls, as will some other large owls, also readily expropriate the nests of buzzards. In the Czech Republic and in Luxembourg, the buzzard was the third and fifth most frequent prey species for eagle-owls, respectively. The reintroduction of eagle-owls to sections of Germany has been found to have a slight deleterious effect on the local occupancy of common buzzards. The only sparing factor is the temporal difference (the buzzard nesting later in the year than the eagle-owl) and buzzards may locally be able to avoid nesting near an active eagle-owl family. As the ecology of the wintering population is relatively little studied, a similar very large owl at the top of the avian food chain, the Verreaux's eagle-owl (Bubo lacteus), is the only known predator of wintering steppe buzzards in southern Africa. Despite not being known predators of buzzards, other large, vole-eating owls are known to displace or to be avoided by nesting buzzards, such as great grey owls (Strix nebulosa) and Ural owls (Strix uralensis). Unlike with large birds of prey, next to nothing is known of mammalian predators of common buzzards, despite up to several nestlings and fledglings being likely depredated by mammals.
Common buzzards themselves rarely present a threat to other raptorial birds but may occasionally kill a few of those of smaller size. The buzzard is a known predator of Eurasian sparrowhawks (Accipiter nisus), common kestrel and lesser kestrel (Falco naumanni) . Perhaps surprisingly, given the nocturnal habits of this prey, the group of raptorial birds the buzzard is known to hunt most extensively is owls. Known owl prey has included Western barn owls (Tyto alba), European scops owls (Otus scops), tawny owls (Strix aluco), little owls (Athene noctua), boreal owls (Aegolius funereus), long-eared owls (Asio otus) and short-eared owls (Asio flammeus). Despite their relatively large size, tawny owls are known to avoid buzzards as there are several records of them preying upon the owls.
Breeding
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Nesting territories and density
Home ranges of common buzzards are generally . In a German study, the range was with an average of . The Snowdonia region of northern Wales held a pair per with a mean nearest neighbor distance of ; in adjacent Migneint, pair occurrence was , with a mean distance of . In the Teno massif of the Canary Islands, the average density was estimated as 23 pairs per , similar to that of a middling continental population. On another set of islands, on Crete the density of pairs was lower at 5.7 pairs per ; here buzzards tend to have an irregular distribution, some in lower intensity harvest olive groves but their occurrence actually more common in agricultural than natural areas. In the Italian Alps, it was recorded in 1993–96 that there were from 28 to 30 pairs per . Higher density areas are known than those above. Two areas of the Midlands of England showed occupancies of 81 and 22 territorial pairs per . High buzzard densities there were associated with high proportions of unimproved pasture and mature woodland within the estimated territories. Despite claims from the study of the English midlands were the highest known territory density for the species, a number ranging from 32 to 51 pairs in wooded area of merely in Czech Republic seems to surely exceed even those densities. The Czech study hypothesized that fragmentation of forest in human management of lands for wild sheep and deer, creating exceptional concentrations of prey such as voles, and lack of appropriate habitat in surrounding regions for the exceptionally high density.
In the North-Estonian Neeruti landscape reserve (area 1250 ha), Marek Vahula found 9 populated nests in 1989 and 1990. One nest was found in 1982 and is apparently the oldest known nest that is still populated today.
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Common buzzards maintain their territories through flight displays. In Europe, territorial behaviour generally starts in February. However, displays are not uncommon throughout year in resident pairs, especially by males, and can elicit similar displays by neighbors. Sky-dancing by common buzzards have been recorded in spring and autumn, typically by male but sometimes by female, nearly always with much calling. Their sky-dances are of the rollercoaster type, with upward sweep until they start to stall, but sometimes embellished with loops or rolls at the top. Next in the sky-dance, they dive on more or less closed wings before spreading them and shooting up again, upward sweeps of up to , with dive drops of up to at least . These dances may be repeated in series of 10 to 20. In the climax of the sky dance, the undulations become progressive shallower, often slowing and terminating directly onto a perch. Various other aerial displays include low contour flight or weaving among trees, frequently with deep beats and exaggerated upstrokes which show underwing pattern to rivals perched below. Talon grappling and occasionally cartwheeling downward with feet interlocked has been recorded in buzzards and, as in many raptors, is likely the physical culmination of the aggressive territorial display, especially between males. Despite the highly territorial nature of buzzards and their devotion to a single mate and breeding ground each summer, there is one case of a polyandrous trio of buzzards nesting in the Canary Islands.NestsCommon buzzards tend to build a bulky nest of sticks, twigs and often heather. Commonly, nests are up to across and deep. With reuse over years, the diameter can reach or exceed and weight of nests can reach over . Buzzards were recorded to nest almost exclusively in pines in Spain at a mean height of . Furthermore, a few ground nests were recorded in high prey-level agricultural areas in the Netherlands. In the Italian Alps, 81% of 108 nests were on cliffs. Pairs often have several nests but some pairs may use one over several consecutive years. Two to four alternate nests in a territory is typical for common buzzards, especially those breeding further north in their range.
Reproduction and eggs
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The breeding season commences at differing times based on latitude. Common buzzard breeding seasons may fall as early as January to April but typically the breeding season is March to July in much of Palearctic. In the northern stretches of the range the breeding season may last into May–August. Mating usually occurs on or near the nest and lasts about 15 seconds, typically occurring several times a day. Laying dates are remarkably constant throughout Great Britain. There are, however, highly significant differences in clutch size between British study areas. These do not follow any latitudinal gradient and it is likely that local factors such as habitat and prey availability are more important determinants of clutch size. After leaving the nest, buzzards generally stay close by, but with migratory ones there is more definitive movement generally southbound. Full independence is generally sought 6 to 8 weeks after fledging. 1st year birds generally remain in wintering area for following summer but then return to near area of origin but then migrate south again without breeding. In common buzzards, generally speaking, siblings stay quite close to each other after dispersal from their parents and form something of a social group, although parents usually tolerate their presence on their territory until they are laying another clutch. However, the social group of siblings disbands at about a year of age.Breeding success ratesNumerous factors may weigh into the breeding success of common buzzards. Chiefly among these are prey populations, habitat, disturbance and persecution levels and innerspecies competition. High breeding success was detected in Argyll, Scotland, due likely to hearty prey populations (rabbits) but also probably a lower local rate of persecution than elsewhere in the British isles. Here, the mean number of fledglings were 1.75 against 0.82–1.41 in other parts of Britain. The composition of habitat and its relation to human disturbance were important variables for the dark and light phenotypes but were less important to intermediate individuals. Thus selection pressures resulting from different factors did not vary much between sexes but varied between the three phenotypes in the population. Breeding success in areas with wild European rabbits was considerably effected by rabbit myxomatosis and rabbit haemorrhagic disease, both of which have heavily depleted wild rabbit population. Breeding success in formerly rabbit-rich areas were recorded to decrease from as much as 2.6 to as little as 0.9 young per pair. Age of first breeding in several radio-tagged buzzards showed only a single male breeding as early as his 2nd summer (at about a year of age). Significantly more buzzards were found to start breeding at the 3 summer but breeding attempts can be individually erratic given the availability of habitat, food and mates. The mean life expectancy was estimated at 6.3 years in the late 1950s, but this was at a time of high persecution when humans were causing 50–80% of buzzard deaths. In Westphalia, Germany, population of buzzards was shown to nearly triple over the last few decades. The Westphalian buzzards are possibly benefiting from increasingly warmer mean climate, which in turn is increasing vulnerability of voles. However, the rate of increase was significantly greater in males than in females, in part because of reintroduced Eurasian eagle-owls to the region preying on nests (including the brooding mother), which may in turn put undue pressure on the local buzzard population.
At least 238 common buzzards killed through persecution were recovered in England from 1975 to 1989, largely through poisoning. Persecution did not significantly differ at any time due this span of years nor did the persecution rates decrease, nor did it when compared to rates of last survey of this in 1981. While some persecution persists in England, it is probably slightly less common today. Given its relative abundance, the common buzzard is held as an ideal bioindicator, as they are effected by a range of pesticide and metal contamination through pollution like other raptors but are largely resilient to these at the population levels. In turn, this allows biologists to study (and harvest if needed) the buzzards intensively and their environments without affecting their overall population. The lack of affect may be due to the buzzard's adaptability as well as its relatively short, terrestrially-based food chain, which exposes them to less risk of contamination and population depletions than raptors that prey more heavily on water-based prey (such as some large eagles) or other birds (such as falcons). Common buzzards are seldom vulnerable to egg-shell thinning from DDT as are other raptors but egg-shell thinning has been recorded. Other factors that negatively effect raptors have been studied in common buzzards are helminths, avipoxvirus and assorted other viruses.Gallery
<gallery>
Buteo buteo -Hamerton Zoo, Cambridgeshire, England -head-8a.jpg|At Hamerton Zoo, England
Buzzard UK09.JPG|In flight, Devon, England. There are around 40,000 breeding pairs in the United Kingdom
Buteo buteo MWNH 0812.JPG|Egg, Collection Museum Wiesbaden
File:Jonge buizerd (Buteo buteo).jpg|A young buzzard being ringed
File:Ei van een Buizerd (Buteo buteo) 02.jpg|Infertile egg of a Buzzard (Buteo buteo).
</gallery>
References
Citations
General sources
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*
External links
* [http://sabap2.adu.org.za/docs/sabap1/149.pdf Steppe Buzzard species text in The Atlas of Southern African Birds]
* [http://www.madeirabirds.com/buzzard Madeira Birds: Buzzard]. Page about the controversial subspecies harterti. Retrieved 28 November 2006.
* [https://web.archive.org/web/20161108171630/http://aulaenred.ibercaja.es/wp-content/uploads/119_CommonBuzzardBbuteo.pdf Ageing and sexing (PDF; 4.2 MB) by Javier Blasco-Zumeta & Gerd-Michael Heinze]
* [http://www.ornithos.de/Ornithos/Feather_Collection/Buteo_buteo/Buteo_buteo.htm Feathers of Common Buzzard (Buteo buteo)]
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common buzzard
Category:Birds of Africa
Category:Birds of prey of Eurasia
Category:Birds of Macaronesia
common buzzard
common buzzard | https://en.wikipedia.org/wiki/Common_buzzard | 2025-04-05T18:26:44.008654 |
4194 | Bohrium | Bohrium is a synthetic chemical element; it has symbol Bh and atomic number 107. It is named after Danish physicist Niels Bohr. As a synthetic element, it can be created in particle accelerators but is not found in nature. All known isotopes of bohrium are highly radioactive; the most stable known isotope is <sup>270</sup>Bh with a half-life of approximately 2.4 minutes, though the unconfirmed <sup>278</sup>Bh may have a longer half-life of about 11.5 minutes.
In the periodic table, it is a d-block transactinide element. It is a member of the 7th period and belongs to the group 7 elements as the fifth member of the 6d series of transition metals. Chemistry experiments have confirmed that bohrium behaves as the heavier homologue to rhenium in group 7. The chemical properties of bohrium are characterized only partly, but they compare well with the chemistry of the other group 7 elements.
Introduction
History
, a Danish nuclear/theoretical
physicist, with the name nielsbohrium (Ns). This name was later changed by IUPAC to bohrium (Bh).]]
Discovery
Two groups claimed discovery of the element. Evidence of bohrium was first reported in 1976 by a Soviet research team led by Yuri Oganessian, in which targets of bismuth-209 and lead-208 were bombarded with accelerated nuclei of chromium-54 and manganese-55, respectively. Two activities, one with a half-life of one to two milliseconds, and the other with an approximately five-second half-life, were seen. Since the ratio of the intensities of these two activities was constant throughout the experiment, it was proposed that the first was from the isotope bohrium-261 and that the second was from its daughter dubnium-257. Later, the dubnium isotope was corrected to dubnium-258, which indeed has a five-second half-life (dubnium-257 has a one-second half-life); however, the half-life observed for its parent is much shorter than the half-lives later observed in the definitive discovery of bohrium at Darmstadt in 1981. The IUPAC/IUPAP Transfermium Working Group (TWG) concluded that while dubnium-258 was probably seen in this experiment, the evidence for the production of its parent bohrium-262 was not convincing enough.
: + → +
This discovery was further substantiated by their detailed measurements of the alpha decay chain of the produced bohrium atoms to previously known isotopes of fermium and californium. The IUPAC/IUPAP Transfermium Working Group (TWG) recognised the GSI collaboration as official discoverers in their 1992 report.
Proposed names
<!-- Deleted image removed: -->
In September 1992, the German group suggested the name nielsbohrium with symbol Ns to honor the Danish physicist Niels Bohr. The Soviet scientists at the Joint Institute for Nuclear Research in Dubna, Russia had suggested this name be given to element 105 (which was finally called dubnium) and the German team wished to recognise both Bohr and the fact that the Dubna team had been the first to propose the cold fusion reaction, and simultaneously help to solve the controversial problem of the naming of element 105. The Dubna team agreed with the German group's naming proposal for element 107.
There was an element naming controversy as to what the elements from 104 to 106 were to be called; the IUPAC adopted unnilseptium (symbol Uns) as a temporary, systematic element name for this element. This was opposed by the discoverers as there was some concern that the name might be confused with boron and in particular the distinguishing of the names of their respective oxyanions, bohrate and borate. The matter was handed to the Danish branch of IUPAC which, despite this, voted in favour of the name bohrium, and thus the name bohrium for element 107 was recognized internationally in 1997;Isotopes
|ref
|dmα |year2007|re<sup>209</sup>Bi(<sup>52</sup>Cr,n)
}}
|ref
|dmα |year1986|re<sup>209</sup>Bi(<sup>54</sup>Cr,2n)
}}
|ref
|dmα |year1981|re<sup>209</sup>Bi(<sup>54</sup>Cr,n)
}}
|ref
|dmα |year2004|re<sup>243</sup>Am(<sup>26</sup>Mg,4n)
}}
|ref
|dmα |year2000|re<sup>249</sup>Bk(<sup>22</sup>Ne,5n)
}}
|ref
|dmα |year2000|re<sup>249</sup>Bk(<sup>22</sup>Ne,4n)
|dmα |year2006|re<sup>282</sup>Nh(—,3α)
}}
|ref
}}
|ref
The lighter isotopes usually have shorter half-lives; half-lives of under 100 ms for <sup>260</sup>Bh, <sup>261</sup>Bh, <sup>262</sup>Bh, and <sup>262m</sup>Bh were observed. <sup>264</sup>Bh, <sup>265</sup>Bh, <sup>266</sup>Bh, and <sup>271</sup>Bh are more stable at around 1 s, and <sup>267</sup>Bh and <sup>272</sup>Bh have half-lives of about 10 s. The heaviest isotopes are the most stable, with <sup>270</sup>Bh and <sup>274</sup>Bh having measured half-lives of about 2.4 min and 40 s respectively, and the even heavier unconfirmed isotope <sup>278</sup>Bh appearing to have an even longer half-life of about 11.5 minutes.
The most proton-rich isotopes with masses 260, 261, and 262 were directly produced by cold fusion, those with mass 262 and 264 were reported in the decay chains of meitnerium and roentgenium, while the neutron-rich isotopes with masses 265, 266, 267 were created in irradiations of actinide targets. The five most neutron-rich ones with masses 270, 271, 272, 274, and 278 (unconfirmed) appear in the decay chains of <sup>282</sup>Nh, <sup>287</sup>Mc, <sup>288</sup>Mc, <sup>294</sup>Ts, and <sup>290</sup>Fl respectively. The half-lives of bohrium isotopes range from about ten milliseconds for <sup>262m</sup>Bh to about one minute for <sup>270</sup>Bh and <sup>274</sup>Bh, extending to about 11.5 minutes for the unconfirmed <sup>278</sup>Bh, which may have one of the longest half-lives among reported superheavy nuclides.Predicted propertiesVery few properties of bohrium or its compounds have been measured; this is due to its extremely limited and expensive production Since the oxychlorides are asymmetrical, and they should have increasingly large dipole moments going down the group, they should become less volatile in the order TcO<sub>3</sub>Cl > ReO<sub>3</sub>Cl > BhO<sub>3</sub>Cl: this was experimentally confirmed in 2000 by measuring the enthalpies of adsorption of these three compounds. The values are for TcO<sub>3</sub>Cl and ReO<sub>3</sub>Cl are −51 kJ/mol and −61 kJ/mol respectively; the experimental value for BhO<sub>3</sub>Cl is −77.8 kJ/mol, very close to the theoretically expected value of −78.5 kJ/mol.
In 2000, it was confirmed that although relativistic effects are important, bohrium behaves like a typical group 7 element. A team at the Paul Scherrer Institute (PSI) conducted a chemistry reaction using six atoms of <sup>267</sup>Bh produced in the reaction between <sup>249</sup>Bk and <sup>22</sup>Ne ions. The resulting atoms were thermalised and reacted with a HCl/O<sub>2</sub> mixture to form a volatile oxychloride. The reaction also produced isotopes of its lighter homologues, technetium (as <sup>108</sup>Tc) and rhenium (as <sup>169</sup>Re). The isothermal adsorption curves were measured and gave strong evidence for the formation of a volatile oxychloride with properties similar to that of rhenium oxychloride. This placed bohrium as a typical member of group 7. The adsorption enthalpies of the oxychlorides of technetium, rhenium, and bohrium were measured in this experiment, agreeing very well with the theoretical predictions and implying a sequence of decreasing oxychloride volatility down group 7 of TcO<sub>3</sub>Cl > ReO<sub>3</sub>Cl > BhO<sub>3</sub>Cl.
Notes
References
Bibliography
* |titleThe NUBASE2016 evaluation of nuclear properties |doi10.1088/1674-1137/41/3/030001 |last1Audi |first1G. |last2Kondev |first2F. G. |last3Wang |first3M. |last4Huang |first4W. J. |last5Naimi |first5S. |display-authors3 |journalChinese Physics C |volume41 |issue3 <!--Citation bot deny-->|pages030001 |year=2017
|bibcode=2017ChPhC..41c0001A }}<!--for consistency and specific pages, do not replace with -->
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* External links
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* [http://www.periodicvideos.com/videos/107.htm Bohrium] at The Periodic Table of Videos (University of Nottingham)
Category:Chemical elements
Category:Transition metals
Category:Synthetic elements
Category:Chemical elements with hexagonal close-packed structure | https://en.wikipedia.org/wiki/Bohrium | 2025-04-05T18:26:44.053029 |
4195 | Barbara Olson | |birth_place = Houston, Texas, U.S.
|death_date = }}
|death_place = Arlington County, Virginia, U.S.
|death_cause = Plane crash as part of the September 11 terrorist attacks
|years_active = 1990–2001
|education = University of Saint Thomas (BA)<br>Yeshiva University (JD)
|party = Republican
|occupation =
|spouse =
}}
Barbara Kay Olson (née Bracher; December 27, 1955September 11, 2001) was an American lawyer and conservative television commentator who worked for CNN, Fox News Channel, and several other outlets. She was a passenger on American Airlines Flight 77 en route to a taping of Bill Maher's television show Politically Incorrect when it was flown into the Pentagon in the September 11 attacks.
Early life
Olson was born Barbara Kay Bracher in Houston, Texas, on December 27, 1955. Her older sister, Toni Bracher-Lawrence, was a member of the Houston City Council from 2004 to 2010. She graduated from Waltrip High School.
Personal life
She married Theodore Olson in 1996, becoming his third wife.
Olson was a frequent critic of the Bill Clinton administration and wrote a book about then–First Lady Hillary Clinton, Hell to Pay: The Unfolding Story of Hillary Rodham Clinton (1999). Olson's second book, The Final Days: The Last, Desperate Abuses of Power by the Clinton White House was published posthumously.Death and legacy
’s South Pool, with other passengers of Flight 77.]]
Olson was a passenger on American Airlines Flight 77, on her way to a taping of Politically Incorrect in Los Angeles, when it was flown into the Pentagon in the September 11 attacks.
Her original plan had been to fly to California on September 10, but she waited until the next day so that she could wake up with her husband on his birthday, September 11.
Three months after the attacks, Olson's remains were identified. She was buried at her family's retreat in Wisconsin. In popular culture *Canadian actress Marsha Mason portrayed Barbara Olson in the Canadian TV series Mayday Season 16: Episode 2 (2016) called "9/11: The Pentagon Attack" and Air Crash Investigation Special Report Season 2: Episode 1 (2019) called "Headline News".Books*
*
References
External links
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* [http://edition.cnn.com/2001/US/09/11/pentagon.olson/ Wife of Solicitor General alerted him of hijacking from plane]
* [https://www.washingtonpost.com/ac2/wp-dyn?pagenamearticle&node&contentIdA37063-2001Sep15¬Foundtrue Barbara Olson Mourned at Arlington Service]
* [https://web.archive.org/web/20060828235527/http://cf.newsday.com/911/victimsearch.cfm?id=65 Barbara Olson: A Sparkling Celebrity 'Full of Energy'] Newsday.com-Victims Search
* Alfred S. Regnery (September 17, 2001). [https://web.archive.org/web/20071214033951/http://findarticles.com/p/articles/mi_qa3827/is_200109/ai_n8954773 "Barbara Olson, RIP"]. Human Events/BNet Research Center.
Category:1955 births
Category:2001 deaths
Category:20th-century American lawyers
Category:20th-century American non-fiction writers
Category:20th-century American women lawyers
Category:20th-century American women writers
Category:21st-century American lawyers
Category:21st-century American non-fiction writers
Category:21st-century American women lawyers
Category:21st-century American women writers
Category:American Airlines Flight 77 victims
Category:American political commentators
Category:American political writers
Category:American women television personalities
Category:Benjamin N. Cardozo School of Law alumni
Category:Lawyers from Washington, D.C.
Category:Lawyers from Houston
Category:People murdered in Virginia
Category:Terrorism deaths in Virginia
Category:University of St. Thomas (Texas) alumni
Category:Washington, D.C., Republicans
Category:Wilmer Cutler Pickering Hale and Dorr associates
Category:Television personalities from Texas
Category:Yeshiva University alumni | https://en.wikipedia.org/wiki/Barbara_Olson | 2025-04-05T18:26:44.077782 |
4196 | Barnard's Star | | appmag_1_passband = U
| appmag_1 12.497
| appmag_3_passband = R
| appmag_3 8.298
| appmag_6_passband = H
| appmag_6 4.83
}}
| name3"Greyhound of the Skies" Vyssotsky 799, Its stellar mass is about 16% of the Sun's, and it has 19% of the Sun's diameter. Despite its proximity, the star has a dim apparent visual magnitude of +9.5 and is invisible to the unaided eye; it is much brighter in the infrared than in visible light.
Barnard's Star is among the most studied red dwarfs because of its proximity and favorable location for observation near the celestial equator. Historically, research on Barnard's Star has focused on measuring its stellar characteristics, its astrometry, and also refining the limits of possible extrasolar planets. Although Barnard's Star is ancient, it still experiences stellar flare events, one being observed in 1998.
In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN) to catalogue and standardize proper names for stars. The WGSN approved the name ''Barnard's Star'' for this star on 1 February 2017 and it is now included in the List of IAU-approved Star Names. Description
, Barnard's Star, and the Sun]]
Barnard's Star is a red dwarf of the dim spectral type M4 and is too faint to see without a telescope; its apparent magnitude is 9.5.
At 7–12 billion years of age, Barnard's Star is considerably older than the Sun, which is 4.5 billion years old, and it might be among the oldest stars in the Milky Way galaxy. Barnard's Star has lost a great deal of rotational energy; the periodic slight changes in its brightness indicate that it rotates once in 130 days Barnard's Star has the variable star designation V2500 Ophiuchi. In 2003, Barnard's Star presented the first detectable change in the radial velocity of a star caused by its motion. Further variability in the radial velocity of Barnard's Star was attributed to its stellar activity. At the time of the star's closest pass by the Sun, Barnard's Star will still be too dim to be seen with the naked eye, since its apparent magnitude will only have increased by one magnitude to about 8.5 by then, still being 2.5 magnitudes short of visibility to the naked eye.
Barnard's Star has a mass of about 0.16 solar masses (), Thus, although Barnard's Star has roughly 150 times the mass of Jupiter (), its radius is only roughly 2 times larger, due to its much higher density. Its effective temperature is about 3,220 kelvin, and it has a luminosity of only 0.0034 solar luminosities.
Barnard's Star has 10–32% of the solar metallicity. However, some recently published scientific papers have given much higher estimates for the metallicity of the star, very close to the Sun's level, between 75 and 125% of the solar metallicity.
Planetary system
In August 2024, by using data from ESPRESSO spectrograph of the Very Large Telescope, the existence of an exoplanet with a minimum mass of and orbital period of 3.15 days was confirmed. This constituted the first convincing evidence for a planet orbiting Barnard's Star. Additionally, three other candidate low-mass planets were proposed in this study. All of these planets orbit closer to the star than the habitable zone.
Van de Kamp's initial suggestion was a planet having about at a distance of 4.4AU in a slightly eccentric orbit, and these measurements were apparently refined in a 1969 paper. Later that year, Van de Kamp suggested that there were two planets of 1.1 and .
Other astronomers subsequently repeated Van de Kamp's measurements, and two papers in 1973 undermined the claim of a planet or planets. George Gatewood and Heinrich Eichhorn, at a different observatory and using newer plate measuring techniques, failed to verify the planetary companion. Another paper published by John L. Hershey four months earlier, also using the Swarthmore observatory, found that changes in the astrometric field of various stars correlated to the timing of adjustments and modifications that had been carried out on the refractor telescope's objective lens; the claimed planet was attributed to an artifact of maintenance and upgrade work. The affair has been discussed as part of a broader scientific review.
Van de Kamp never acknowledged any error and published a further claim of two planets' existence as late as 1982; he died in 1995. Wulff Heintz, Van de Kamp's successor at Swarthmore and an expert on double stars, questioned his findings and began publishing criticisms from 1976 onwards. The two men were reported to have become estranged because of this. Refuted 2018 planetary claim orbiting Barnard's Star]]
In November 2018, an international team of astronomers announced the detection by radial velocity of a candidate super-Earth orbiting in relatively close proximity to Barnard's Star. Led by Ignasi Ribas of Spain their work, conducted over two decades of observation, provided strong evidence of the planet's existence. However, the existence of the planet was refuted in 2021, when the radial velocity signal was found to originate from long-term activity on the star itself, related to its rotation. Refining planetary boundaries For the more than four decades between van de Kamp's rejected claim and the eventual announcement of a planet candidate, Barnard's Star was carefully studied and the mass and orbital boundaries for possible planets were slowly tightened. M dwarfs such as Barnard's Star are more easily studied than larger stars in this regard because their lower masses render perturbations more obvious.
Null results for planetary companions continued throughout the 1980s and 1990s, including interferometric work with the Hubble Space Telescope in 1999. Gatewood was able to show in 1995 that planets with were impossible around Barnard's Star, In 1999, the Hubble work further excluded planetary companions of with an orbital period of less than 1,000 days (Jupiter's orbital period is 4,332 days), greater than 7.5 times the mass of the Earth (), or with a mass greater than 3.1 times the mass of Neptune (much lower than van de Kamp's smallest suggested value).
Even though this research greatly restricted the possible properties of planets around Barnard's Star, it did not rule them out completely as terrestrial planets were always going to be difficult to detect. NASA's Space Interferometry Mission, which was to begin searching for extrasolar Earth-like planets, was reported to have chosen Barnard's Star as an early search target, ESA's similar Darwin interferometry mission had the same goal, but was stripped of funding in 2007.
The analysis of radial velocities that eventually led to the announcement of a candidate super-Earth orbiting Barnard's Star was also used to set more precise upper mass limits for possible planets, up to and within the habitable zone: a maximum of up to the inner edge and on the outer edge of the optimistic habitable zone, corresponding to orbital periods of up to 10 and 40 days respectively. Therefore, it appears that Barnard's Star indeed does not host Earth-mass planets or larger, in hot and temperate orbits, unlike other M-dwarf stars that commonly have these types of planets in close-in orbits. Given the essentially random nature of flares, Diane Paulson, one of the authors of that study, noted that "the star would be fantastic for amateurs to observe".
Stellar activity of this sort has created interest in using Barnard's Star as a proxy to understand similar stars. It is hoped that photometric studies of its X-ray and UV emissions will shed light on the large population of old M dwarfs in the galaxy. Such research has astrobiological implications: given that the habitable zones of M dwarfs are close to the star, any planet located therein would be strongly affected by solar flares, stellar winds, and plasma ejection events.
Environment
, including Barnard's Star (25 April 2014)]]
Barnard's Star shares much the same neighborhood as the Sun. The neighbors of Barnard's Star are generally of red dwarf size, the smallest and most common star type. Its closest neighbor is currently the red dwarf Ross 154, at a distance of 1.66 parsecs (5.41 light-years). The Sun (5.98 light-years) and Alpha Centauri (6.47 light-years) are, respectively, the next closest systems.
Proposed exploration
map among all stellar objects or stellar systems within 9 light years (ly) from the map's center, the Sun (Sol). The diamond-shapes are their positions entered according to right ascension in hours angle (indicated at the edge of the map's reference disc), and according to their declination. The second mark shows each's distance from Sol, with the concentric circles indicating the distance in steps of one ly.]]
Project Daedalus
Barnard's Star was studied as part of Project Daedalus. Undertaken between 1973 and 1978, the study suggested that rapid, uncrewed travel to another star system was possible with existing or near-future technology. Barnard's Star was chosen as a target partly because it was believed to have planets.
The theoretical model suggested that a nuclear pulse rocket employing nuclear fusion (specifically, electron bombardment of deuterium and helium-3) and accelerating for four years could achieve a velocity of 12% of the speed of light. The star could then be reached in 50 years, within a human lifetime. Built and launched in Jupiter's orbit, it would reach Barnard's Star in 47 years under parameters similar to those of the original Project Daedalus. Once at the star, it would begin automated self-replication, constructing a factory, initially to manufacture exploratory probes and eventually to create a copy of the original spacecraft after 1,000 years.
}}
External links
*
*
* Amateur work showing Barnard's Star movement over time.
* Animated image with frames approx. one year apart, beginning in 2007, showing the movement of Barnard's Star.
*
J17574849+0441405
?
Category:BY Draconis variables
Category:Discoveries by Edward Emerson Barnard
BD+04 3561A
Category:Flare stars
0699
087937
Category:Planetary systems with four confirmed planets
Category:Local Interstellar Cloud
Category:M-type main-sequence stars
Ophiuchi, V2500
Category:Ophiuchus
Category:Stars with proper names | https://en.wikipedia.org/wiki/Barnard's_Star | 2025-04-05T18:26:44.160294 |
4199 | Bayer designation | showing the belt stars and Orion Nebula region, with both Greek and Latin letter labels visible]]
A Bayer designation is a stellar designation in which a specific star is identified by a Greek or Latin letter followed by the genitive form of its parent constellation's Latin name. The original list of Bayer designations contained 1564 stars. The brighter stars were assigned their first systematic names by the German astronomer Johann Bayer in 1603, in his star atlas Uranometria. Bayer catalogued only a few stars too far south to be seen from Germany, but later astronomers (including Nicolas-Louis de Lacaille and Benjamin Apthorp Gould) supplemented Bayer's catalog with entries for southern constellations.
Scheme
Bayer assigned a lowercase Greek letter (alpha (α), beta (β), gamma (γ), etc.) or a Latin letter (A, b, c, etc.) to each star he catalogued, combined with the Latin name of the star's parent constellation in genitive (possessive) form. The constellation name is frequently abbreviated to a standard three-letter form. For example, Aldebaran in the constellation Taurus (the Bull) is designated α Tauri (abbreviated α Tau, pronounced Alpha Tauri), which means "Alpha of the Bull".
Bayer used Greek letters for the brighter stars, but the Greek alphabet has only twenty-four letters, while a single constellation may contain fifty or more stars visible to the naked eye. When the Greek letters ran out, Bayer continued with Latin letters: uppercase A, followed by lowercase b through z (omitting j and v, but o was included), for a total of another 24 letters.
Bayer did not label "permanent" stars with uppercase letters (except for A, which he used instead of a to avoid confusion with α). However, a number of stars in southern constellations have uppercase letter designations, like B Centauri and G Scorpii. These letters were assigned by later astronomers, notably Lacaille in his Coelum Australe Stelliferum and Gould in his Uranometria Argentina. Lacaille followed Bayer's use of Greek letters, but this was insufficient for many constellations. He used first the lowercase letters, starting with a, and if needed the uppercase letters, starting with A, thus deviating somewhat from Bayer's practice. Lacaille used the Latin alphabet three times over in the large constellation Argo Navis, once for each of the three areas that are now the constellations of Carina, Puppis and Vela. That was still insufficient for the number of stars, so he also used uppercase Latin letters such as N Velorum and Q Puppis. Lacaille assigned uppercase letters between R and Z in several constellations, but these have either been dropped to allow the assignment of those letters to variable stars or have actually turned out to be variable.
Order by magnitude class
In most constellations, Bayer assigned Greek and Latin letters to stars within a constellation in rough order of apparent brightness, from brightest to dimmest. The order is not necessarily a precise labeling from brightest to dimmest: in Bayer's day stellar brightness could not be measured precisely. Instead, stars were traditionally assigned to one of six magnitude classes (the brightest to first magnitude, the dimmest to sixth), and Bayer typically ordered stars within a constellation by class: all the first-magnitude stars (in some order), followed by all the second-magnitude stars, and so on. Within each magnitude class, Bayer made no attempt to arrange stars by relative brightness. As a result, the brightest star in each class did not always get listed first in Bayer's order—and the brightest star overall did not necessarily get the designation "Alpha". A good example is the constellation Gemini, where Pollux is Beta Geminorum and the slightly dimmer Castor is Alpha Geminorum.
In addition, Bayer did not always follow the magnitude class rule; he sometimes assigned letters to stars according to their location within a constellation, or the order of their rising, or to historical or mythological details. Occasionally the order looks quite arbitrary. Bayer then repeated the procedure for the stars of the 2nd magnitude, labeling them from gamma through zeta in "top-down" (north-to-south) order. Letters as far as Latin p were used for stars of the sixth magnitude.
constellation map]]
{| class="wikitable"
|+
! Bayer<br/>Designation || Bayer's class || Apparent<br/>Magnitude || Proper<br/>Name
|-
| α Orionis
| First
| 0.45
| Betelgeuse
|-
| β Orionis
| First
| 0.18
| Rigel
|-
| γ Orionis
| Second
| 1.64
| Bellatrix
|-
| δ Orionis
| Second
| 2.23
| Mintaka
|-
| ε Orionis
| Second
| 1.69
| Alnilam
|-
| ζ Orionis
| Second
| 1.70
| Alnitak
|-
| η Orionis
| Third
| 3.42
| Algjebbah
|-
| θ Orionis
| Third
|
| (Orion nebula)
|-
| ι Orionis
| Third
| 2.77
| Hatysa
|-
| κ Orionis
| Third
| 2.07
| Saiph
|}
<!--
Various arrangements
The "First to Rise in the East" order is used in a number of instances. Castor and Pollux of Gemini may be an example of this: Pollux is brighter than Castor, but the latter rises earlier and was assigned alpha. In this case, Bayer may also have been influenced by the traditional order of the mythological names "Castor and Pollux": Castor is generally named first whenever the twins are mentioned.
Although the brightest star in Draco is Eltanin (Gamma Draconis), Thuban was assigned alpha (α) by Bayer because, due to precession, Thuban was the north pole star 4,000 years ago. Sometimes there is no apparent order, as exemplified by the stars in Sagittarius, where Bayer's designations appear almost random to the modern eye. Alpha and Beta Sagittarii are perhaps the most anomalously designated stars in the sky. They are more than two magnitudes fainter than the brightest star (designated Epsilon), they lie several degrees south of the main pattern (the "teapot" asterism), they are more than 20 degrees off the ecliptic in a Zodiacal constellation, and they do not even rise from Bayer's native Germany (while Epsilon and several other brighter stars do). The order of the letters assigned in Sagittarius does correspond to the magnitudes as illustrated on Bayer's chart; but the latter do not agree with modern determinations of the magnitudes.
Bayer designations added by later astronomers generally were ordered by magnitude, but care was usually taken to avoid conflict with designations already assigned. In Libra, for example, the new designations sigma, tau, and upsilon were chosen to avoid conflict with Bayer's earlier designations, even though several stars with earlier letters are not as bright.
-->
Bayer's miscellaneous labels
Although Bayer did not use uppercase Latin letters (except A) for "fixed stars", he did use them to label other items shown on his charts, such as neighboring constellations, "temporary stars", miscellaneous astronomical objects, or reference lines like the Tropic of Cancer. In Cygnus, for example, Bayer's fixed stars run through g, and on this chart Bayer employs H through P as miscellaneous labels, mostly for neighboring constellations. Bayer did not intend such labels as catalog designations, but some have survived to refer to astronomical objects: P Cygni for example is still used as a designation for Nova Cyg 1600. Tycho's Star (SN 1572), another "temporary star", appears as B Cassiopeiae. In charts for constellations that did not exhaust the Greek letters, Bayer sometimes used the leftover Greek letters for miscellaneous labels as well.
Bayer assigned two stars duplicate names by mistake: (duplicated as ) and (Kappa<sup>1</sup> and Kappa<sup>2</sup>) (duplicated as ). He corrected these in a later atlas, and the duplicate names were no longer used.
A further complication is the use of numeric superscripts to distinguish neighboring stars that Bayer (or a later astronomer) labeled with a common letter. Usually these are double stars (mostly optical doubles rather than true binary stars), but there are some exceptions such as the chain of stars π<sup>1</sup>, π<sup>2</sup>, π<sup>3</sup>, π<sup>4</sup>, π<sup>5</sup> and π<sup>6</sup> Orionis. The most stars given the same Bayer designation but with an extra number attached to it is Psi Aurigae. (ψ<sup>1</sup>, ψ<sup>2</sup>, ψ<sup>3</sup>, ψ<sup>4</sup>, ψ<sup>5</sup>, ψ<sup>6</sup>, ψ<sup>7</sup>, ψ<sup>8</sup>, ψ<sup>9</sup>, ψ<sup>10</sup>, although according to the modern IAU constellation boundaries, ψ<sup>10</sup> lies in Lynx).
See also
* Flamsteed designation
* Gould designation
* Lists of constellations
* Star catalogue
* Stellar designations and names
* Table of stars with Bayer designations
* Variable star designation
References
Notes
Category:Astronomical catalogues
* | https://en.wikipedia.org/wiki/Bayer_designation | 2025-04-05T18:26:44.194752 |
4200 | Boötes | , genitive
| symbolism = The Herdsman
| RA = to
| dec = +7.36° to +55.1°
| areatotal = 907
| arearank = 13th
| numbermainstars = 7, 15
| numberbfstars = 59
| numberstarsplanets = 10
| numberbrightstars = 3
| numbernearbystars = 3
| brighteststarname = Arcturus (α Boo)
| starmagnitude = −0.04
| neareststarname = Wolf 498
| stardistancely = 17.71
| stardistancepc = 5.43
| numbermessierobjects = 0
| meteorshowers =
| bordering =
| latmax = 90
| latmin = 50
| month = June
| notes = Other designations: Arctophylax
}}
Boötes ( ) is a constellation in the northern sky, located between 0° and +60° declination, and 13 and 16 hours of right ascension on the celestial sphere. The name comes from , which comes from 'herdsman' or 'plowman' (literally, 'ox-driver'; from boûs 'cow').
One of the 48 constellations described by the 2nd-century astronomer Ptolemy, Boötes is now one of the 88 modern constellations. It contains the fourth-brightest star in the night sky, the orange giant Arcturus. Epsilon Boötis, or Izar, is a colourful multiple star popular with amateur astronomers. Boötes is home to many other bright stars, including eight above the fourth magnitude and an additional 21 above the fifth magnitude, making a total of 29 stars easily visible to the naked eye.
History and mythology
In ancient Babylon, the stars of Boötes were known as SHU.PA. They were apparently depicted as the god Enlil, who was the leader of the Babylonian pantheon and special patron of farmers. Boötes may have been represented by the animal foreleg constellation in ancient Egypt, resembling that of an ox sufficiently to have been originally proposed as the "foreleg of ox" by Berio.
Homer mentions Boötes in the Odyssey as a celestial reference for navigation, describing it as "late-setting" or "slow to set". Exactly whom Boötes is supposed to represent in Greek mythology is not clear. According to one version, he was a son of Demeter, Philomenus, twin brother of Plutus, a plowman who drove the oxen in the constellation Ursa Major. This agrees with the constellation's name. The ancient Greeks saw the asterism now called the "Big Dipper" or "Plough" as a cart with oxen. Some myths say that Boötes invented the plow and was memorialized for his ingenuity as a constellation.
Another myth associated with Boötes by Hyginus is that of Icarius, who was schooled as a grape farmer and winemaker by Dionysus. Icarius made wine so strong that those who drank it appeared poisoned, which caused shepherds to avenge their supposedly poisoned friends by killing Icarius. Maera, Icarius' dog, brought his daughter Erigone to her father's body, whereupon both she and the dog died by suicide. Zeus then chose to honor all three by placing them in the sky as constellations: Icarius as Boötes, Erigone as Virgo, and Maera as Canis Major or Canis Minor.
Following another reading, the constellation is identified with Arcas and also referred to as Arcas and Arcturus, son of Zeus and Callisto. Arcas was brought up by his maternal grandfather Lycaon, to whom one day Zeus went and had a meal. To verify that the guest was really the king of the gods, Lycaon killed his grandson and prepared a meal made from his flesh. Zeus noticed and became very angry, transforming Lycaon into a wolf and giving life back to his son. In the meantime Callisto had been transformed into a she-bear by Zeus's wife Hera, who was angry at Zeus's infidelity. This is corroborated by the Greek name for Boötes, Arctophylax, which means "Bear Watcher".
Callisto, in the form of a bear was almost killed by her son, who was out hunting. Zeus rescued her, taking her into the sky where she became Ursa Major, "the Great Bear". Arcturus, the name of the constellation's brightest star, comes from the Greek word meaning "guardian of the bear". Sometimes Arcturus is depicted as leading the hunting dogs of nearby Canes Venatici and driving the bears of Ursa Major and Ursa Minor.
'', a set of constellation cards published in London . In his left hand he holds his hunting dogs, Canes Venatici. Below them is the constellation Coma Berenices. Above the head of Boötes is Quadrans Muralis, now obsolete, but which lives on as the name of the early January Quadrantid meteor shower. Mons Mænalus can be seen at his feet.]]
Several former constellations were formed from stars now included in Boötes. Quadrans Muralis, the Quadrant, was a constellation created near Beta Boötis from faint stars. It was designated in 1795 by Jérôme Lalande, an astronomer who used a quadrant to perform detailed astronometric measurements. Lalande worked with Nicole-Reine Lepaute and others to predict the 1758 return of Halley's Comet. Quadrans Muralis was formed from the stars of eastern Boötes, western Hercules and Draco. It was originally called Le Mural by Jean Fortin in his 1795 Atlas Céleste; it was not given the name Quadrans Muralis until Johann Bode's 1801 Uranographia. The constellation was quite faint, with its brightest stars reaching the 5th magnitude. Mons Maenalus, representing the Maenalus mountains, was created by Johannes Hevelius in 1687 at the foot of the constellation's figure. The mountain was named for the son of Lycaon, Maenalus. The mountain, one of Diana's hunting grounds, was also holy to Pan.
Non-Western astronomy
The stars of Boötes were incorporated into many different Chinese constellations. Arcturus was part of the most prominent of these, variously designated as the celestial king's throne (Tian Wang) or the Blue Dragon's horn (Daijiao); the name Daijiao, meaning "great horn", is more common. Arcturus was given such importance in Chinese celestial mythology because of its status marking the beginning of the lunar calendar, as well as its status as the brightest star in the northern night sky.
Two constellations flanked Daijiao: Yousheti to the right and Zuosheti to the left; they represented companions that orchestrated the seasons. Zuosheti was formed from modern Zeta, Omicron and Pi Boötis, while Yousheti was formed from modern Eta, Tau and Upsilon Boötis. Dixi, the Emperor's ceremonial banquet mat, was north of Arcturus, consisting of the stars 12, 11 and 9 Boötis. Another northern constellation was Qigong, the Seven Dukes, which mostly straddled the Boötes-Hercules border. It included either Delta Boötis or Beta Boötis as its terminus.
The other Chinese constellations made up of the stars of Boötes existed in the modern constellation's north; they are all representations of weapons. Tianqiang, the spear, was formed from Iota, Kappa and Theta Boötis; Genghe, variously representing a lance or shield, was formed from Epsilon, Rho and Sigma Boötis.
There were also two weapons made up of a singular star. Xuange, the halberd, was represented by Lambda Boötis, and Zhaoyao, either the sword or the spear, was represented by Gamma Boötis.
Two Chinese constellations have an uncertain placement in Boötes. Kangchi, the lake, was placed south of Arcturus, though its specific location is disputed. It may have been placed entirely in Boötes, on either side of the Boötes-Virgo border, or on either side of the Virgo-Libra border. The constellation Zhouding, a bronze tripod-mounted container used for food, was sometimes cited as the stars 1, 2 and 6 Boötis. However, it has also been associated with three stars in Coma Berenices.
Boötes is also known to Native American cultures. In Yup'ik language, Boötes is Taluyaq, literally "fish trap," and the funnel-shaped part of the fish trap is known as Ilulirat.
Characteristics
Boötes is a constellation bordered by Virgo to the south, Coma Berenices and Canes Venatici to the west, Ursa Major to the northwest, Draco to the northeast, and Hercules, Corona Borealis and Serpens Caput to the east. The three-letter abbreviation for the constellation, as adopted by the International Astronomical Union in 1922, is "Boo". The official constellation boundaries, as set by Belgian astronomer Eugène Delporte in 1930, are defined by a polygon of 16 segments. In the equatorial coordinate system, the right ascension coordinates of these borders lie between and , while the declination coordinates stretch from +7.36° to +55.1°. Covering 907 square degrees, Boötes culminates at midnight around 2 May and ranks 13th in area.
Colloquially, its pattern of stars has been likened to a kite or ice cream cone. However, depictions of Boötes have varied historically. Aratus described him circling the north pole, herding the two bears. Later ancient Greek depictions, described by Ptolemy, have him holding the reins of his hunting dogs (Canes Venatici) in his left hand, with a spear, club, or staff in his right hand. After Hevelius introduced Mons Maenalus in 1681, Boötes was often depicted standing on the Peloponnese mountain. By 1801, when Johann Bode published his Uranographia, Boötes had acquired a sickle, which was also held in his left hand.
The placement of Arcturus has also been mutable through the centuries. Traditionally, Arcturus lay between his thighs, as Ptolemy depicted him. However, Germanicus Caesar deviated from this tradition by placing Arcturus "where his garment is fastened by a knot".
Features
Stars
In his Uranometria, Johann Bayer used the Greek letters alpha through to omega and then A to k to label what he saw as the most prominent 35 stars in the constellation, with subsequent astronomers splitting Kappa, Mu, Nu and Pi as two stars each. Nu is also the same star as Psi Herculis. John Flamsteed numbered 54 stars for the constellation.
Located 36.7 light-years from Earth, Arcturus, or Alpha Boötis, is the brightest star in Boötes and the fourth-brightest star in the sky at an apparent magnitude of −0.05; It is also the brightest star north of the celestial equator, just shading out Vega and Capella. Its name comes from the Greek for "bear-keeper". An orange giant of spectral class K1.5III, Arcturus is an ageing star that has exhausted its core supply of hydrogen and cooled and expanded to a diameter of 27 solar diameters, equivalent to approximately 32 million kilometers. Though its mass is approximately one solar mass (), Arcturus shines with 133 times the luminosity of the Sun ().
Bayer located Arcturus above the Herdman's left knee in his Uranometria. Nearby Eta Boötis, or Muphrid, is the uppermost star denoting the left leg. It is a 2.68-magnitude star 37 light-years distant with a spectral class of G0IV, indicating it has just exhausted its core hydrogen and is beginning to expand and cool. It is 9 times as luminous as the Sun and has 2.7 times its diameter. Analysis of its spectrum reveals that it is a spectroscopic binary. Muphrid and Arcturus lie only 3.3 light-years away from each other. Viewed from Arcturus, Muphrid would have a visual magnitude of −2½, while Arcturus would be around visual magnitude −4½ when seen from Muphrid.
Marking the herdsman's head is Beta Boötis, or Nekkar, a yellow giant of magnitude 3.5 and spectral type G8IIIa. Like Arcturus, it has expanded and cooled off the main sequence—likely to have lived most of its stellar life as a blue-white B-type main sequence star. Its common name comes from the Arabic phrase for "ox-driver". It is 219 light-years away and has a luminosity of .
Located 86 light-years distant, Gamma Boötis, or Seginus, is a white giant star of spectral class A7III, with a luminosity 34 times and diameter 3.5 times that of the Sun. It is a Delta Scuti variable, ranging between magnitudes 3.02 and 3.07 every 7 hours. These stars are short period (six hours at most) pulsating stars that have been used as standard candles and as subjects to study asteroseismology.
Delta Boötis is a wide double star with a primary of magnitude 3.5 and a secondary of magnitude 7.8. The primary is a yellow giant that has cooled and expanded to 10.4 times the diameter of the Sun. Of spectral class G8IV, it is around 121 light-years away, while the secondary is a yellow main sequence star of spectral type G0V. The two are thought to take 120,000 years to orbit each other.
Mu Boötis, known as Alkalurops, is a triple star popular with amateur astronomers. It has an overall magnitude of 4.3 and is 121 light-years away. Its name is from the Arabic phrase for "club" or "staff". The primary appears to be of magnitude 4.3 and is blue-white. The secondary appears to be of magnitude 6.5, but is actually a close double star itself with a primary of magnitude 7.0 and a secondary of magnitude 7.6. The secondary and tertiary stars have an orbital period of 260 years. The primary has an absolute magnitude of 2.6 and is of spectral class F0. The secondary and tertiary stars are separated by 2 arcseconds; the primary and secondary are separated by 109.1 arcseconds at an angle of 171 degrees.
Nu Boötis is an optical double star. The primary is an orange giant of magnitude 5.0 and the secondary is a white star of magnitude 5.0. The primary is 870 light-years away and the secondary is 430 light-years.
Epsilon Boötis, also known as Izar or Pulcherrima, is a close triple star popular with amateur astronomers and the most prominent binary star in Boötes. The primary is a yellow- or orange-hued magnitude 2.5 giant star, the secondary is a magnitude 4.6 blue-hued main-sequence star, and the tertiary is a magnitude 12.0 star. The system is 210 light-years away. The name "Izar" comes from the Arabic word for "girdle" or "loincloth", referring to its location in the constellation. The name "Pulcherrima" comes from the Latin phrase for "most beautiful", referring to its contrasting colors in a telescope. The primary and secondary stars are separated by 2.9 arcseconds at an angle of 341 degrees; the primary's spectral class is K0 and it has a luminosity of . To the naked eye, Izar has a magnitude of 2.37.
Nearby Rho and Sigma Boötis denote the herdsman's waist. Rho is an orange giant of spectral type K3III located around 160 light-years from Earth. It is ever so slightly variable, wavering by 0.003 of a magnitude from its average of 3.57. Sigma, a yellow-white main-sequence star of spectral type F3V, is suspected of varying in brightness from 4.45 to 4.49. It is around 52 light-years distant.
Traditionally known as Aulād al Dhiʼbah (أولاد الضباع – aulād al dhiʼb), "the Whelps of the Hyenas", Theta, Iota, Kappa and Lambda Boötis (or Xuange) are a small group of stars in the far north of the constellation. The magnitude 4.05 Theta Boötis has a spectral type of F7 and an absolute magnitude of 3.8. Iota Boötis is a triple star with a primary of magnitude 4.8 and spectral class of A7, a secondary of magnitude 7.5, and a tertiary of magnitude 12.6. The primary is 97 light-years away. The primary and secondary stars are separated by 38.5 arcseconds, at an angle of 33 degrees. The primary and tertiary stars are separated by 86.7 arcseconds at an angle of 194 degrees. Both the primary and tertiary appear white in a telescope, but the secondary appears yellow-hued.
Kappa Boötis is another wide double star. The primary is 155 light-years away and has a magnitude of 4.5. The secondary is 196 light-years away and has a magnitude of 6.6. The two components are separated by 13.4 arcseconds, at an angle of 236 degrees. The primary, with spectral class A7, appears white and the secondary appears bluish.
An apparent magnitude 4.18 type A0p star, Lambda Boötis is the prototype of a class of chemically peculiar stars, only some of which pulsate as Delta Scuti-type stars. The distinction between the Lambda Boötis stars as a class of stars with peculiar spectra, and the Delta Scuti stars whose class describes pulsation in low-overtone pressure modes, is an important one. While many Lambda Boötis stars pulsate and are Delta Scuti stars, not many Delta Scuti stars have Lambda Boötis peculiarities, since the Lambda Boötis stars are a much rarer class whose members can be found both inside and outside the Delta Scuti instability strip. Lambda Boötis stars are dwarf stars that can be either spectral class A or F. Like BL Boötis-type stars they are metal-poor. Scientists have had difficulty explaining the characteristics of Lambda Boötis stars, partly because only around 60 confirmed members exist, but also due to heterogeneity in the literature. Lambda has an absolute magnitude of 1.8.
There are two dimmer F-type stars, magnitude 4.83 12 Boötis, class F8; and magnitude 4.93 45 Boötis, class F5. Xi Boötis is a G8 yellow dwarf of magnitude 4.55, and absolute magnitude is 5.5. Two dimmer G-type stars are magnitude 4.86 31 Boötis, class G8, and magnitude 4.76 44 Boötis, class G0.
Of apparent magnitude 4.06, Upsilon Boötis has a spectral class of K5 and an absolute magnitude of −0.3. Dimmer than Upsilon Boötis is magnitude 4.54 Phi Boötis, with a spectral class of K2 and an absolute magnitude of −0.1. Just slightly dimmer than Phi at magnitude 4.60 is O Boötis, which, like Izar, has a spectral class of K0. O Boötis has an absolute magnitude of 0.2. The other four dim stars are magnitude 4.91 6 Boötis, class K4; magnitude 4.86 20 Boötis, class K3; magnitude 4.81 Omega Boötis, class K4; and magnitude 4.83 A Boötis, class K1.
There is one bright B-class star in Boötes; magnitude 4.93 Pi<sup>1</sup> Boötis, also called Alazal. It has a spectral class of B9 and is 40 parsecs from Earth. There is also one M-type star, magnitude 4.81 34 Boötis. It is of class gM0. Multiple stars
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Besides Pulcherrima and Alkalurops, there are several other binary stars in Boötes:
*Xi Boötis is a quadruple star popular with amateur astronomers. The primary is a yellow star of magnitude 4.7 and the secondary is an orange star of magnitude 6.8. The system is 22 light-years away and has an orbital period of 150 years. The primary and secondary have a separation of 6.7 arcseconds at an angle of 319 degrees. The tertiary is a magnitude 12.6 star (though it may be observed to be brighter) and the quaternary is a magnitude 13.6 star.
* Pi Boötis is a close triple star. The primary is a blue-white star of magnitude 4.9, the secondary is a blue-white star of magnitude 5.8, and the tertiary is a star of magnitude 10.4. The primary and secondary components are separated by 5.6 arcseconds at an angle of 108 degrees; the primary and tertiary components are separated by 128 arcseconds at an angle of 128 degrees.
* Zeta Boötis is a triple star that consists of a physical binary pair with an optical companion. Lying 205 light-years away from Earth, The physical pair has a period of 123.3 years and consists of a magnitude 4.5 and a magnitude 4.6 star. The two components are separated by 1.0 arcseconds at an angle of 303 degrees. The optical companion is of magnitude 10.9, separated by 99.3 arcseconds at an angle of 259 degrees. 44 Boötis is an eclipsing variable star. The primary is of variable magnitude and the secondary is of magnitude 6.2; they have an orbital period of 225 years. The components are separated by 1.0 arcsecond at an angle of 40 degrees.
44 Boötis (i Boötis) is a double variable star 42 light-years away. It has an overall magnitude of 4.8 and appears yellow to the naked eye. The primary is of magnitude 5.3 and the secondary is of magnitude 6.1; their orbital period is 220 years. The secondary is itself an eclipsing variable star with a range of 0.6 magnitudes; its orbital period is 6.4 hours. It is a W Ursae Majoris variable that ranges in magnitude from a minimum of 7.1 to a maximum of 6.5 every 0.27 days. Both stars are G-type stars. Another eclipsing binary star is ZZ Boötis, which has two F2-type components of almost equal mass, and ranges in magnitude from a minimum of 6.79 to a maximum of 7.44 over a period of 5.0 days. Variable stars Two of the brighter Mira-type variable stars in the constellation are R and S Boötis. Both are red giants that range greatly in magnitude—from 6.2 to 13.1 over 223.4 days, and 7.8 to 13.8 over a period of 270.7 days, respectively. Also red giants, V and W Boötis are semi-regular variable stars that range in magnitude from 7.0 to 12.0 over a period of 258 days, and magnitude 4.7 to 5.4 over 450 days, respectively.
BL Boötis is the prototype of its class of pulsating variable stars, the anomalous Cepheids. These stars are somewhat similar to Cepheid variables, but they do not have the same relationship between their period and luminosity. Their periods are similar to RRAB variables; however, they are far brighter than these stars. BL Boötis is a member of the cluster NGC 5466. Anomalous Cepheids are metal poor and have masses not much larger than the Sun's, on average, . BL Boötis type stars are a subtype of RR Lyrae variables.
T Boötis was a nova observed in April 1860 at a magnitude of 9.7. It has never been observed since, but that does not preclude the possibility of it being a highly irregular variable star or a recurrent nova. Stars with planetary systems Extrasolar planets have been discovered encircling ten stars in Boötes as of 2012. Tau Boötis is orbited by a large planet, discovered in 1999. The host star itself is a magnitude 4.5 star of type F7V, 15.6 parsecs from Earth. It has a mass of and a radius of 1.331 solar radii (); a companion, GJ527B, orbits at a distance of 240 AU. Tau Boötis b, the sole planet discovered in the system, orbits at a distance of 0.046 AU every 3.31 days. Discovered through radial velocity measurements, it has a mass of 5.95 Jupiter masses (). This makes it a hot Jupiter. The host star and planet are tidally locked, meaning that the planet's orbit and the star's particularly high rotation are synchronized. Furthermore, a slight variability in the host star's light may be caused by magnetic interactions with the planet. Carbon monoxide is present in the planet's atmosphere. Tau Boötis b does not transit its star, rather, its orbit is inclined 46 degrees.
Like Tau Boötis b, HAT-P-4b is also a hot Jupiter. It is noted for orbiting a particularly metal-rich host star and being of low density. Discovered in 2007, HAT-P-4 b has a mass of and a radius of . It orbits every 3.05 days at a distance of 0.04 AU. HAT-P-4, the host star, is an F-type star of magnitude 11.2, 310 parsecs from Earth. It is larger than the Sun, with a mass of and a radius of .
Boötes is also home to multiple-planet systems. HD 128311 is the host star for a two-planet system, consisting of HD 128311 b and HD 128311 c, discovered in 2002 and 2005, respectively. HD 128311 b is the smaller planet, with a mass of ; it was discovered through radial velocity observations. It orbits at almost the same distance as Earth, at 1.099 AU; however, its orbital period is significantly longer at 448.6 days.
The larger of the two, HD 128311 c, has a mass of and was discovered in the same manner. It orbits every 919 days inclined at 50°, and is 1.76 AU from the host star. The host star, HD 128311, is a K0V-type star located 16.6 parsecs from Earth. It is smaller than the Sun, with a mass of and a radius of ; it also appears below the threshold of naked-eye visibility at an apparent magnitude of 7.51.
There are several single-planet systems in Boötes. HD 132406 is a Sun-like star of spectral type G0V with an apparent magnitude of 8.45, 231.5 light-years from Earth. It has a mass of and a radius of . The star is orbited by a gas giant, HD 132406 b, discovered in 2007. HD 132406 orbits 1.98 AU from its host star with a period of 974 days and has a mass of . The planet was discovered by the radial velocity method.
WASP-23 is a star with one orbiting planet, WASP-23 b. The planet, discovered by the transit method in 2010, orbits every 2.944 days very close to its Sun, at 0.0376 AU. It is smaller than Jupiter, at and . Its star is a K1V-type star of apparent magnitude 12.7, far below naked-eye visibility, and smaller than the Sun at and .
HD 131496 is also encircled by one planet, HD 131496 b. The star is of type K0 and is located 110 parsecs from Earth; it appears at a visual magnitude of 7.96. It is significantly larger than the Sun, with a mass of and a radius of 4.6 solar radii. Its one planet, discovered in 2011 by the radial velocity method, has a mass of ; its radius is as yet undetermined. HD 131496 b orbits at a distance of 2.09 AU with a period of 883 days.
Another single planetary system in Boötes is the HD 132563 system, a triple star system. The parent star, technically HD 132563B, is a star of magnitude 9.47, 96 parsecs from Earth. It is almost exactly the size of the Sun, with the same radius and a mass only 1% greater. Its planet, HD 132563B b, was discovered in 2011 by the radial velocity method. , it orbits 2.62 AU from its star with a period of 1544 days. Its orbit is somewhat elliptical, with an eccentricity of 0.22. HD 132563B b is one of very few planets found in triple star systems; it orbits the isolated member of the system, which is separated from the other components, a spectroscopic binary, by 400 AU.
Also discovered through the radial velocity method, albeit a year earlier, is HD 136418 b, a two-Jupiter-mass planet that orbits the star HD 136418 at a distance of 1.32 AU with a period of 464.3 days. Its host star is a magnitude 7.88 G5-type star, 98.2 parsecs from Earth. It has a radius of and a mass of .
WASP-14 b is one of the most massive and dense exoplanets known, with a mass of and a radius of . Discovered via the transit method, it orbits 0.036 AU from its host star with a period of 2.24 days. WASP-14 b has a density of 4.6 grams per cubic centimeter, making it one of the densest exoplanets known. Its host star, WASP-14, is an F5V-type star of magnitude 9.75, 160 parsecs from Earth. It has a radius of and a mass of . It also has a very high proportion of lithium.
Deep-sky objects
image of SDSSCGB 10189, three colliding galaxies]]
Boötes is in a part of the celestial sphere facing away from the plane of our home Milky Way galaxy, and so does not have open clusters or nebulae. Instead, it has one bright globular cluster and many faint galaxies. The globular cluster NGC 5466 has an overall magnitude of 9.1 and a diameter of 11 arcminutes. It is a very loose globular cluster with fairly few stars and may appear as a rich, concentrated open cluster in a telescope. NGC 5466 is classified as a Shapley–Sawyer Concentration Class 12 cluster, reflecting its sparsity. Its fairly large diameter means that it has a low surface brightness, so it appears far dimmer than the catalogued magnitude of 9.1 and requires a large amateur telescope to view. Only approximately 12 stars are resolved by an amateur instrument.
Boötes has two bright galaxies. NGC 5248 (Caldwell 45) is a type Sc galaxy (a variety of spiral galaxy) of magnitude 10.2. It measures 6.5 by 4.9 arcminutes. Fifty million light-years from Earth, NGC 5248 is a member of the Virgo Cluster of galaxies; it has dim outer arms and obvious H II regions, dust lanes and young star clusters. NGC 5676 is another type Sc galaxy of magnitude 10.9. It measures 3.9 by 2.0 arcminutes. Other galaxies include NGC 5008, a type Sc emission-line galaxy, NGC 5548, a type S Seyfert galaxy, NGC 5653, a type S HII galaxy, NGC 5778 (also classified as NGC 5825), a type E galaxy that is the brightest of its cluster, NGC 5886, and NGC 5888, a type SBb galaxy. NGC 5698 is a barred spiral galaxy, notable for being the host of the 2005 supernova SN 2005bc, which peaked at magnitude 15.3.
Further away lies the 250-million-light-year-diameter Boötes void, a huge space largely empty of galaxies. Discovered by Robert Kirshner and colleagues in 1981, it is roughly 700 million light-years from Earth. Beyond it and within the bounds of the constellation, lie two superclusters at around 830 million and 1 billion light-years distant.
The Hercules–Corona Borealis Great Wall, the largest-known structure in the Universe, covers a significant part of Boötes.
Meteor showers
Boötes is home to the Quadrantid meteor shower, the most prolific annual meteor shower. It was discovered in January 1835 and named in 1864 by Alexander Herschel. The radiant is located in northern Boötes near Kappa Boötis, in its namesake former constellation of Quadrans Muralis. Quadrantid meteors are dim, but have a peak visible hourly rate of approximately 100 per hour on January 3–4. The zenithal hourly rate of the Quadrantids is approximately 130 meteors per hour at their peak; it is also a very narrow shower.
The Quadrantids are notoriously difficult to observe because of a low radiant and often inclement weather. The parent body of the meteor shower has been disputed for decades; however, Peter Jenniskens has proposed 2003 EH<sub>1</sub>, a minor planet, as the parent. 2003 EH<sub>1</sub> may be linked to C/1490 Y<sub>1</sub>, a comet previously thought to be a potential parent body for the Quadrantids.
2003 EH<sub>1</sub> is a short-period comet of the Jupiter family; 500 years ago, it experienced a catastrophic breakup event. It is now dormant. The Quadrantids had notable displays in 1982, 1985 and 2004. Meteors from this shower often appear to have a blue hue and travel at a moderate speed of 41.5–43 kilometers per second.
On April 28, 1984, a remarkable outburst of the normally placid Alpha Bootids was observed by visual observer Frank Witte from 00:00 to 2:30 UTC. In a 6 cm telescope, he observed 433 meteors in a field of view near Arcturus with a diameter of less than 1°. Peter Jenniskens comments that this outburst resembled a "typical dust trail crossing". The Alpha Bootids normally begin on April 14, peaking on April 27 and 28, and finishing on May 12. Its meteors are slow-moving, with a velocity of 20.9 kilometers per second. They may be related to Comet 73P/Schwassmann–Wachmann 3, but this connection is only theorized.
The June Bootids, also known as the Iota Draconids, is a meteor shower associated with the comet 7P/Pons–Winnecke, first recognized on May 27, 1916, by William F. Denning. The shower, with its slow meteors, was not observed prior to 1916 because Earth did not cross the comet's dust trail until Jupiter perturbed Pons–Winnecke's orbit, causing it to come within of Earth's orbit the first year the June Bootids were observed.
In 1982, E. A. Reznikov discovered that the 1916 outburst was caused by material released from the comet in 1819. Another outburst of the June Bootids was not observed until 1998, because Comet Pons–Winnecke's orbit was not in a favorable position. However, on June 27, 1998, an outburst of meteors radiating from Boötes, later confirmed to be associated with Pons-Winnecke, was observed. They were incredibly long-lived, with trails of the brightest meteors lasting several seconds at times. Many fireballs, green-hued trails, and even some meteors that cast shadows were observed throughout the outburst, which had a maximum zenithal hourly rate of 200–300 meteors per hour.
Two Russian astronomers determined in 2002 that material ejected from the comet in 1825 was responsible for the 1998 outburst. Ejecta from the comet dating to 1819, 1825 and 1830 was predicted to enter Earth's atmosphere on June 23, 2004. The predictions of a shower less spectacular than the 1998 showing were borne out in a display that had a maximum zenithal hourly rate of 16–20 meteors per hour that night. The June Bootids are not expected to have another outburst in the next 50 years.
Typically, only 1–2 dim, very slow meteors are visible per hour; the average June Bootid has a magnitude of 5.0. It is related to the Alpha Draconids and the Bootids-Draconids. The shower lasts from June 27 to July 5, with a peak on the night of June 28. The June Bootids are classified as a class III shower (variable), and has an average entry velocity of 18 kilometers per second. Its radiant is located 7 degrees north of Beta Boötis.
The Beta Bootids is a weak shower that begins on January 5, peaks on January 16, and ends on January 18. Its meteors travel at 43 km/s. The January Bootids is a short, young meteor shower that begins on January 9, peaks from January 16 to January 18, and ends on January 18.
The Phi Bootids is another weak shower radiating from Boötes. It begins on April 16, peaks on April 30 and May 1, and ends on May 12. Its meteors are slow-moving, with a velocity of 15.1 km/s. They were discovered in 2006. The shower's peak hourly rate can be as high as six meteors per hour. Though named for a star in Boötes, the Phi Bootid radiant has moved into Hercules. The meteor stream is associated with three different asteroids: 1620 Geographos, 2062 Aten and 1978 CA.
The Lambda Bootids, part of the Bootid-Coronae Borealid Complex, are a weak annual shower with moderately fast meteors; 41.75 km/s. The complex includes the Lambda Bootids, as well as the Theta Coronae Borealids and Xi Coronae Borealids. All of the Bootid-Coronae Borealid showers are Jupiter family comet showers; the streams in the complex have highly inclined orbits.
There are several minor showers in Boötes, some of whose existence is yet to be verified. The Rho Bootids radiate from near the namesake star, and were hypothesized in 2010. The average Rho Bootid has an entry velocity of 43 km/s. It peaks in November and lasts for three days.
The Rho Bootid shower is part of the SMA complex, a group of meteor showers related to the Taurids, which is in turn linked to the comet 2P/Encke. However, the link to the Taurid shower remains unconfirmed and may be a chance correlation. Another such shower is the Gamma Bootids, which were hypothesized in 2006. Gamma Bootids have an entry velocity of 50.3 km/s. The Nu Bootids, hypothesized in 2012, have faster meteors, with an entry velocity of 62.8 km/s.
See also
* Lists of astronomical objects
References
Citations
References
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*}}
*}}
* }} ([https://arxiv.org/abs/0707.0958v1 web preprint])
*
*
*
}}
*
| first1 = S.
| last1 = Desidera
| first2 = E.
| last2 = Carolo
| first3 = R.
| last3 = Gratton
| first4 = A.F.
| last4 = Martinez Fiorenzano
| first5 = M.
| last5 = Endl
| first6 = D.
| last6 = Mesa
| first7 = M.
| last7 = Barbieri
| first8 = M.
| last8 = Bonavita
| first9 = M.
| last10 = Claudi
| first10 = R.U.
| last11 = Cosentino
| first11 = R.
| last12 = Marzari
| first12 = F.
| last13 = Scuderi
| first13 = S.
| last9 = Cecconi
| others = Claudi, R. U.; Cosentino, R.; Marzari, F.; and Scuderi, S.
|arxiv 1107.0918 |bibcode 2011A&A...533A..90D | s2cid = 54938087
}}
*
| archive-date = 1 December 2019
| archive-url = https://web.archive.org/web/20191201022125/http://exoplanet.eu/catalog/tau_boo_b/
| encyclopedia = Extrasolar Planets Encyclopaedia
| url-status = dead
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
| archive-date = 13 October 2014
| archive-url = https://web.archive.org/web/20141013012651/http://exoplanet.eu/catalog/hd_132563b_b/
| encyclopedia = Extrasolar Planets Encyclopaedia
| url-status = dead
}}
*
}}
*
}}
*
}}
*
*
*
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
*
*
| first1 Y. C. |last1 Joshi |first2 D. |last2 Pollacco |first3 A. |last3 Collier Cameron |first4 I. |last4 Skillen |first5 E. |last5 Simpson |first6 I. |last6 Steele |first7 R. A. |last7 Street |first8 H. C. |last8 Stempels |first9 D. J. |last9 Christian | last10 = Hebb
| first10 = L.
| last11 = Bouchy
| first11 = F.
| last12 = Gibson
| first12 = N. P.
| last13 = Hébrard
| first13 = G.
| last14 = Keenan
| first14 = F. P.
| last15 = Loeillet
| first15 = B.
| last16 = Meaburn
| first16 = J.
| last17 = Moutou
| first17 = C.
| last18 = Smalley
| first18 = B.
| last19 = Todd
| first19 = I.
| last20 = West
| first20 = R. G.
| last21 = Anderson
| first21 = D. R.
| last22 = Bentley
| first22 = S.
| last23 = Enoch
| first23 = B.
| last24 = Haswell
| first24 = C. A.
| last25 = Hellier
| first25 = C.
| last26 = Horne
| first26 = K.
| last27 = Irwin
| first27 = J.
| last28 = Lister
| first28 = T. A.
| last29 = McDonald
| first29 = I.
| last30 = Maxted
| first30 = P.
|others = L. Hebb, F. Bouchy, N. P. Gibson, G. Hébrard, F. P. Keenan, B. Loeillet, J. Meaburn, C. Moutou, B. Smalley, I. Todd, R. G. West, D. R. Anderson, S. Bentley, B. Enoch, C. A. Haswell, C. Hellier, K. Horne, J. Irwin, T. A. Lister, I. McDonald, P. Maxted, M. Mayor, A. J. Norton, N. Parley, C. Perrier, F. Pont, D. Queloz, R. Ryans, A. M. S. Smith, S. Udry, P. J. Wheatley, D. M. Wilson
|arxiv 0806.1478 |bibcode 2009MNRAS.392.1532J |doi 10.1111/j.1365-2966.2008.14178.x | doi-access free
| s2cid = 7775011
| display-authors = 8
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
*
| first1 = G.
| last1 = Kovács
| first2 = G. Á.
| last2 = Bakos
| first3 = G.
| last3 = Torres
| first4 = A.
| last4 = Sozzetti
| first5 = D. W.
| last5 = Latham
| first6 = R. W.
| last6 = Noyes
| first7 = R. P.
| last7 = Butler
| first8 = G. W.
| last8 = Marcy
| first9 = D. A.
| last10 = Fernández
| first10 = J. M.
| last11 = Esquerdo
| first11 = G.
| last12 = Sasselov
| first12 = D. D.
| last13 = Stefanik
| first13 = R. P.
| last14 = Pál
| first14 = A.
| last15 = Lázár
| first15 = J.
| last16 = Papp
| first16 = I.
| last17 = Sári
| first17 = P.
| last9 = Fischer
| others = Fernández, J. M.; Esquerdo, G.; Sasselov, D. D.; Stefanik, R. P.; Pál, A.; Lázár, J.; Papp, I.; Sári, P.
| bibcode = 2007ApJ...670L..41K
|arxiv 0710.0602 | s2cid 14966730
}}
*
*
}}
*
}}
*
*
*
*
*
*
*
* }}
*
*
*
}}
*
}}
*
}}
*
*
*
*
*
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
}}
*
*
*
*
*
| doi = 10.1051/0004-6361:20078952
| bibcode = 2008A&A...482..691W
| volume = 482
| issue = 2
| pages = 691–697
| arxiv = 0802.2732
| s2cid = 56317105
}}
*
}}
External links
* [https://iconographic.warburg.sas.ac.uk/category/vpc-taxonomy-017042 Warburg Institute Iconographic Database (medieval and early-modern images of Bootes)]
* [http://astrojan.eu5.org/bootes.htm The clickable Bootes]
Category:Constellations
Category:Northern constellations
Category:Constellations listed by Ptolemy | https://en.wikipedia.org/wiki/Boötes | 2025-04-05T18:26:44.259428 |
4203 | Bernardino Ochino | thumb|Portrait by an unknown author, 1748
Bernardino Ochino (1487–1564) was an Italian, who was raised a Roman Catholic and later turned to Protestantism and became a Protestant reformer.
Biography
Bernardino Ochino was born in Siena, the son of the barber Domenico Ochino, and at the age of 7 or 8, in around 1504, was entrusted to the order of Franciscan Friars. From 1510 he studied medicine at Perugia.
Transfer to the Capuchins
thumb|left|Bernardino Ochino in a 16th-century engraving.
At the age of 38, Ochino transferred himself in 1534 to the newly founded Order of Friars Minor Capuchin. By then he was the close friend of Juan de Valdés, Pietro Bembo, Vittoria Colonna, Pietro Martire, Carnesecchi. In 1538 he was elected vicar-general of his order. In 1539, urged by Bembo, he visited Venice and delivered a course of sermons showing a sympathy with justification by faith, which appeared more clearly in his Dialogues published the same year. He was suspected and denounced, but nothing ensued until the establishment of the Inquisition in Rome in June 1542, at the instigation of Cardinal Giovanni Pietro Carafa. Ochino received a citation to Rome, and set out to obey it about the middle of August. According to his own statement, he was deterred from presenting himself at Rome by the warnings of Cardinal Contarini, whom he found at Bologna, allegedly dying of poison administered by the reactionary party.
Escape to Geneva
Ochino turned aside to Florence, and after some hesitation went across the Alps to Geneva. He was cordially received by John Calvin, and published within two years several volumes of Prediche, controversial tracts rationalizing his change of religion. He also addressed replies to marchioness Vittoria Colonna, Claudio Tolomei, and other Italian sympathizers who were reluctant to go to the same length as himself. His own breach with the Roman Catholic Church was final.
Augsburg and England
In 1545 Ochino became minister of the Italian Protestant congregation at Augsburg. From this time dates his contact with Caspar Schwenckfeld. In 1546 he participated in the anti-Trinitarian Collegia Vicentina. He was compelled to flee from Augsburg when, in January 1547, the city was occupied by the imperial forces for the Diet of Augsburg.
Ochino found asylum in England, where he was made a prebendary of Canterbury Cathedral, received a pension from Edward VI's privy purse, and composed his major work, the Tragoedie or Dialoge of the unjuste usurped primacie of the Bishop of Rome. This text, originally written in Latin, is extant only in the 1549 translation of Bishop John Ponet. The form is a series of dialogues. Lucifer, enraged at the spread of Jesus's kingdom, convokes the fiends in council, and resolves to set up the pope as antichrist. The state, represented by the emperor Phocas, is persuaded to connive at the pope's assumption of spiritual authority; the other churches are intimidated into acquiescence; Lucifer's projects seem fully accomplished, when Heaven raises up Henry VIII of England and his son for their overthrow.
Several of Ochino's Prediche were translated into English by Anna Cooke; and he published numerous controversial treatises on the Continent. Ochino's Che Cosa è Christo was translated into Latin and English by the future Queen Elizabeth I of England in 1547.
Zürich
In 1553 the accession of Mary I drove Ochino from England. He went to Basel, where Lelio Sozzini and the lawyer Martino Muralto were sent to secure Ochino as pastor of the Italian church at Zurich, which Ochino accepted. The Italian congregation there was composed mainly of refugees from Locarno. There for 10 years Ochino wrote books which gave increasing evidence of his alienation from the orthodoxy around him. The most important of these was the Labyrinth, a discussion of the freedom of the will, covertly undermining the Calvinistic doctrine of predestination.
In 1563 a long simmering storm burst on Ochino with the publication of his Thirty Dialogues, in one of which his adversaries maintained that he had justified polygamy under the disguise of a pretended refutation. His dialogues on divorce and against the Trinity were also considered heretical.
Poland, and death
Ochino was not given opportunity to defend himself, and was banished from Zürich. After being refused admission by other Protestant cities, he directed his steps towards Poland, at that time the most tolerant state in Europe. He had not resided there long when an edict appeared (August 8, 1564) banishing all foreign dissidents. Fleeing the country, he encountered the plague at Pińczów; three of his four children were carried off; and he himself, worn out by misfortune, died in solitude and obscurity at Slavkov in Moravia, about the end of 1564.
Legacy
Ochino's reputation among Protestants was low. He was charged by Thomas Browne in 1643 with the authorship of the legendary-apocryphal heretical treatise De tribus Impostoribus, as well as with having carried his alleged approval of polygamy into practice.
His biographer Karl Benrath justified him, representing him as a fervent evangelist and at the same time as a speculative thinker with a passion for free inquiry. The picture is of Ochino always learning and unlearning and arguing out difficult questions with himself in his dialogues, frequently without attaining to any absolute conviction.
Works
Prediche (1542)
Epistola alli Signori di Balia della città di Siena (1543)
Responsio ad Marcum Brixiensem Abbatem Ordinis S. Benedicti (Geneva, 1543)
Responsio ad Mutium Justinopolitanum to Girolamo Muzio (1496–1576)
Tragoedie or Dialoge of the unjuste usurped primacie of the Bishop of Rome. 1549 translation of Bishop John Ponet.
Disputa intorno alla presenza del corpo di Cristo nel Sacramento della Cena
Labyrinth – Laberinti del libero arbitrio (1563) dedicated to Elisabeth I
Dialogi XXX (1563)
Prediche
Notes
References
Karl Benrath's German biography, translated into English by Helen Zimmern, with a preface by the Rev. W. Arthur, London, 1876.
External links
Attribution
Category:1487 births
Category:1564 deaths
Category:People from Siena
Category:Capuchins
Category:Italian Calvinist and Reformed theologians
Category:General Vicars and Ministers General of the Order of Friars Minor Capuchin
Category:Converts to Calvinism from Roman Catholicism | https://en.wikipedia.org/wiki/Bernardino_Ochino | 2025-04-05T18:26:44.328271 |
4204 | Bay of Quinte | and entrance to the Bay of Quinte.]]
The Bay of Quinte () is a long, narrow bay shaped like the letter "Z" on the northern shore of Lake Ontario in the province of Ontario, Canada. It is just west of the head of the Saint Lawrence River that drains the Great Lakes into the Gulf of Saint Lawrence. It is located about east of Toronto and west of Montreal.
The name "Quinte" is derived from "Kenté" or Kentio, an Iroquoian village located near the south shore of the Bay. Later on, an early French Catholic mission was built at Kenté, located on the north shore of what is now Prince Edward County, leading to the Bay being named after the Mission. Officially, in the Mohawk language, the community is called , which means "the place of the bay". The Cayuga name is or , "land of two logs."
The Bay, as it is known locally, provides some of the best trophy walleye angling in North America as well as most sport fish common to the great lakes. The bay is subject to algal blooms in late summer. Zebra mussels as well as the other invasive species found in the Great Lakes are present.
The Quinte area played a vital role in bootlegging during prohibition in the United States, with large volumes of liquor being produced in the area, and shipped via boat on the bay to Lake Ontario finally arriving in New York State where it was distributed. Prohibition-era illegal sales of liquor accounted for many fortunes made in and around Belleville.
Tourism in the area is significant, especially in the summer months due to the Bay of Quinte and its fishing, local golf courses, provincial parks, and wineries.
Geography
The northern side of the bay is defined by Ontario's mainland, while the southern side follows the shore of the Prince Edward County headland. Beginning in the east with the outlet to Lake Ontario, the bay runs west-southwest for to Picton (although this section is also called Adolphus Reach), where it turns north-northwest for another as far as Deseronto. From there it turns south-southwest again for another , running past Big Island on the south and Belleville on the north. The width of the bay rarely exceeds . The bay ends at Trenton (Quinte West) and the Trent River, both also on the north side. The Murray Canal has been cut through the "Carrying Place", the few kilometres separating the end of the bay and Lake Ontario on the west side. The Trent River is part of the Trent-Severn Waterway, a canal connecting Lake Ontario to Lake Simcoe and then Georgian Bay on Lake Huron.
There are several sub-bays off the Bay of Quinte, including Hay Bay, Big Bay, and Muscote Bay.
| zoom 10 <!--(1whole world, 18=a street)-->
| caption = Map of the Bay of Quinte, an arm of Lake Ontario, that runs for some 80 km between Prince Edward County and the 'mainland' of Hastings County, in south-east Ontario.
| minimap=file
| mini-file = Ontario Locator Map.svg
| mini-width = 79
| mini-height = 81
| minipog-gx 90| minipog-gy 88| scalemark = 76
| mark-coord | label| label-posright| mark-size0| label-size12|label-colorhard grey| mark-titlePicton, Ontario| mark-image
| label1Bloomfield| mark-coord1|label-color1hard grey|label-size111| mark-size16| label-pos1right| mark-title1=Bloomfield, Ontario
| label2Wellington| mark-coord2| mark-title2=Wellington, Ontario
| label3Ameliasburgh| mark-coord3| label-pos3left| jdx35| mark-title3=Ameliasburgh Township, Ontario
| label6Hillier| mark-coord6| mark-title6=Hillier, Ontario
| mark-coord9 | label9Long Reach| label-pos9center|ldy9-14
| label-angle9-79|label-color9hard blue|label-size99| mark-size90|mark-title9=Long Reach
| mark-coord10 | label10Picton Bay| label-pos10center| mark-size100| label-size109| label-angle10-59|label-color10hard blue| ldx1016| ldy10-30| mark-title10Picton Bay
| mark-coord12| label12B a y o f Q u i n t e | label-pos12center|jdx1214
| label-angle12-9|label-color12dark blue|label-size1212| mark-size120|mark-title12=Bay of Quinte
| mark-coord13| label13Hay Bay | label-pos13center|ldy13-8
| label-angle13-33|label-color13hard blue|label-size139| mark-size130|mark-title13=Hay Bay
| mark-coord14| label14River Trent | label-pos14center|ldy148
| label-angle1475|label-color14hard blue|label-size149| mark-size140|mark-title14=River Trent
| mark-coord15| label15Adolphus Reach | label-pos15center|ldy15-8
| label-angle15-39|label-color15hard blue|label-size159| mark-size150|mark-title15=Adolphus Reach
| arc-coordA| arc-textALAKE ONTARIO| arc-angleA-50|arc-gapA2|arc-radiusA0.8| arc-text-colorAsoft blue| arc-text-sizeA=10
}}
Bay of Quinte Region
Quinte is also a region comprising several communities situated along the Bay of Quinte, including Quinte West, Brighton and the City of Belleville, which is the largest city in the Quinte Region, and represents a midpoint between Montreal, Ottawa, and Toronto.
The Greater Bay of Quinte area includes the municipalities of Brighton, Quinte West, Belleville, Prince Edward County, and Greater Napanee as well as the Native Tyendinaga Mohawk Territory. Overall population of the area exceeds 200,000.
Mohawks of the Bay of Quinte
The Mohawks of the Bay of Quinte (Kenhtè:ke Kanyen'kehá:ka) Officially, in the Mohawk language, the community is called "Kenhtè:ke" (Tyendinaga), which means "on the bay", and was the birthplace of Tekanawí:ta. The Cayuga name is Tyendinaga, Tayęda:ne:gęˀ or Detgayę:da:negęˀ, "land of two logs."
*Citipack Distribution—Cash and carry<ref name=quintenews/>
*Babars Bazaar—International commodity trading<ref name=quintenews/>
*Jobsters Staffing—Staffing agency
Images
<gallery>
File:Bay of Quinte picnic 1909.jpg|Picnic on the Bay in August 1909
File:Bay of Quinte at Night.JPG|The Bay of Quinte at night, with a view of CFB Trenton.
</gallery>
References
External links
* [http://www.city.belleville.on.ca/ Official website of Belleville]
* [http://www.city.quintewest.on.ca/ Official website of Quinte West]
* [http://bayofquinte.ca/ Official website for the Region of Bay of Quinte]
Category:Central Ontario
Quinte
Category:Bays of Lake Ontario | https://en.wikipedia.org/wiki/Bay_of_Quinte | 2025-04-05T18:26:44.356689 |
4207 | Bassoon | <sub>1</sub>–E<sub>5</sub> (A<sub>5</sub>)<br/><br/>
| related =
}}
The bassoon is a musical instrument in the woodwind family, which plays in the tenor and bass ranges. It is composed of six pieces, and is usually made of wood. It is known for its distinctive tone color, wide range, versatility, and virtuosity. It is typically played while sitting using a seat strap, but can be played while standing if the player has a harness to hold the instrument. Sound is produced by rolling both lips over the reed and blowing direct air pressure to cause the reed to vibrate. Its fingering system can be quite complex when compared to those of other instruments. Appearing in its modern form in the 19th century, the bassoon figures prominently in orchestral, concert band, and chamber music literature, and is occasionally heard in pop, rock, and jazz settings as well. One who plays a bassoon is called a bassoonist.
Etymology
The word bassoon comes from French and from Italian ( with the augmentative suffix ). However, the Italian name for the same instrument is , in Spanish, Dutch, Danish, Czech, Polish, Serbo-Croatian and Romanian it is , in German it is and in Portuguese it is . Fagot is an Old French word meaning a bundle of sticks.
The dulcian came to be known as fagotto in Italy. However, the usual etymology that equates fagotto with "bundle of sticks" is somewhat misleading, as the latter term did not come into general use until later. However an early English variation, "faget", was used as early as 1450 to refer to firewood, which is 100 years before the earliest recorded use of the dulcian (1550). Further citation is needed to prove the lack of relation between the meaning "bundle of sticks" and "fagotto" (Italian) or variants. Some think that it may resemble the Roman fasces, a standard of bound sticks with an axe. A further discrepancy lies in the fact that the dulcian was carved out of a single block of wood—in other words, a single "stick" and not a bundle.
Characteristics
Range
The range of the bassoon begins at B<sub>1</sub> (the first one below the bass staff) and extends upward over three octaves, roughly to the G above the treble staff (G<sub>5</sub>). However, most writing for bassoon rarely calls for notes above C<sub>5</sub> or D<sub>5</sub>; even Stravinsky's opening solo in The Rite of Spring only ascends to D<sub>5</sub>. Notes higher than this are possible, but seldom written, as they are difficult to produce (often requiring specific reed design features to ensure reliability), and at any rate are quite homogeneous in timbre to the same pitches on cor anglais, which can produce them with relative ease. French bassoon has greater facility in the extreme high register, and so repertoire written for it is somewhat likelier to include very high notes, although repertoire for French system can be executed on German system without alterations and vice versa.
The extensive high register of the bassoon and its frequent role as a lyric tenor have meant that tenor clef is very commonly employed in its literature after the Baroque, partly to avoid excessive ledger lines, and, beginning in the 20th century, treble clef is also seen for similar reasons.
Like other woodwind instruments, the lowest note is fixed, but A<sub>1</sub> is possible with a special extension to the instrument—see "Extended techniques" below.
Although the primary tone hole pitches are a pitched perfect 5th lower than other non-transposing Western woodwinds (effectively an octave beneath English horn) the bassoon is non-transposing, meaning that notes sounded match the written pitch.
Construction
of the bassoon's B in four octaves.]]
The bassoon disassembles into six main pieces, including the reed. The bell <span style"color:red;">(6)</span>, extending upward; the bass joint (or long joint) <span style"color:red;">(5)</span>, connecting the bell and the boot; the boot (or butt) <span style"color:red;">(4)</span>, at the bottom of the instrument and folding over on itself; the wing joint (or tenor joint) <span style"color:red;">(3)</span>, which extends from boot to bocal; and the bocal (or crook) <span style"color:red;">(2)</span>, a crooked metal tube that attaches the wing joint to a reed <span style"color:red;">(1)</span> ().
Structure
The bore of the bassoon is conical, like that of the oboe and the saxophone, and the two adjoining bores of the boot joint are connected at the bottom of the instrument with a U-shaped metal connector. Both bore and tone holes are precision-machined, and each instrument is finished by hand for proper tuning. The walls of the bassoon are thicker at various points along the bore; here, the tone holes are drilled at an angle to the axis of the bore, which reduces the distance between the holes on the exterior. This ensures coverage by the fingers of the average adult hand. Playing is facilitated by closing the distance between the widely spaced holes with a complex system of key work, which extends throughout nearly the entire length of the instrument. The overall height of the bassoon stretches to tall, but the total sounding length is considering that the tube is doubled back on itself. There are also short-reach bassoons made for the benefit of young or petite players.
Materials
A modern beginner's bassoon is generally made of maple, with medium-hardness types such as sycamore maple and sugar maple preferred. Less-expensive models are also made of materials such as polypropylene and ebonite, primarily for student and outdoor use. Metal bassoons were made in the past but have not been produced by any major manufacturer since 1889.
Double Reeds
are usually around in length and wrapped in thread.]]
The art of reed-making has been practiced for several hundred years, some of the earliest known reeds having been made for the dulcian, a predecessor of the bassoon. Current methods of reed-making consist of a set of basic methods; however, individual bassoonists' playing styles vary greatly and thus require that reeds be customized to best suit their respective bassoonist. Advanced players usually make their own reeds to this end. With regards to commercially made reeds, many companies and individuals offer pre-made reeds for sale, but players often find that such reeds still require adjustments to suit their particular playing style.
Modern bassoon reeds, made of Arundo donax cane, as the two instruments share many characteristics: a double reed fitted to a metal crook, obliquely drilled tone holes and a conical bore that doubles back on itself. The origins of the dulcian are obscure, but by the mid-16th century it was available in as many as eight different sizes, from soprano to great bass. A full consort of dulcians was a rarity; its primary function seems to have been to provide the bass in the typical wind band of the time, either loud (shawms) or soft (recorders), indicating a remarkable ability to vary dynamics to suit the need. Otherwise, dulcian technique was rather primitive, with eight finger holes and two keys, indicating that it could play in only a limited number of key signatures.
Circumstantial evidence indicates that the baroque bassoon was a newly invented instrument, rather than a simple modification of the old dulcian. The dulcian was not immediately supplanted, but continued to be used well into the 18th century by Bach and others; and, presumably for reasons of interchangeability, repertoire from this time is very unlikely to go beyond the smaller compass of the dulcian. The man most likely responsible for developing the true bassoon was Martin Hotteterre (1712), who may also have invented the three-piece flûte traversière (transverse flute) and the hautbois (baroque oboe). Some historians believe that sometime in the 1650s, Hotteterre conceived the bassoon in four sections (bell, bass joint, boot and wing joint), an arrangement that allowed greater accuracy in machining the bore compared to the one-piece dulcian. He also extended the compass down to B by adding two keys. An alternate view maintains Hotteterre was one of several craftsmen responsible for the development of the early bassoon. These may have included additional members of the Hotteterre family, as well as other French makers active around the same time. No original French bassoon from this period survives, but if it did, it would most likely resemble the earliest extant bassoons of Johann Christoph Denner and Richard Haka from the 1680s. Sometime around 1700, a fourth key (G♯) was added, and it was for this type of instrument that composers such as Antonio Vivaldi, Bach, and Georg Philipp Telemann wrote their demanding music. A fifth key, for the low E, was added during the first half of the 18th century. Notable makers of the 4-key and 5-key baroque bassoon include J.H. Eichentopf (), J. Poerschmann (1680–1757), Thomas Stanesby Jr. (1668–1734), G.H. Scherer (1703–1778), and Prudent Thieriot (1732–1786).
Modern configuration
Increasing demands on capabilities of instruments and players in the 19th century—particularly larger concert halls requiring greater volume and the rise of virtuoso composer-performers—spurred further refinement. Increased sophistication, both in manufacturing techniques and acoustical knowledge, made possible great improvements in the instrument's playability.
The modern bassoon exists in two distinct primary forms, the Buffet (or "French") system and the Heckel ("German") system. Most of the world plays the Heckel system, while the Buffet system is primarily played in France, Belgium, and parts of Latin America. A number of other types of bassoons have been constructed by various instrument makers, such as the rare Galandronome. Owing to the ubiquity of the Heckel system in English-speaking countries, references in English to the contemporary bassoon always mean the Heckel system, with the Buffet system being explicitly qualified where it appears.
Heckel (German) system<!--linked from 'Guntram Wolf'-->
system bassoon from 1870]]
The design of the modern bassoon owes a great deal to the performer, teacher, and composer Carl Almenräder. Assisted by the German acoustic researcher Gottfried Weber, he developed the 17-key bassoon with a range spanning four octaves. Almenräder's improvements to the bassoon began with an 1823 treatise describing ways of improving intonation, response, and technical ease of playing by augmenting and rearranging the keywork. Subsequent articles further developed his ideas. His employment at Schott<!-- at the time named "B. Schott's Söhne" --> gave him the freedom to construct and test instruments according to these new designs, and he published the results in Caecilia, Schott's house journal. Almenräder continued publishing and building instruments until his death in 1846, and Ludwig van Beethoven himself requested one of the newly made instruments after hearing of the papers. In 1831, Almenräder left Schott to start his own factory with a partner, Johann Adam Heckel.
Heckel and two generations of descendants continued to refine the bassoon, and their instruments became the standard, with other makers following. Because of their superior singing tone quality (an improvement upon one of the main drawbacks of the Almenräder instruments), the Heckel instruments competed for prominence with the reformed Wiener system, a Boehm-style bassoon, and a completely keyed instrument devised by Charles-Joseph Sax, father of Adolphe Sax. F.W. Kruspe implemented a latecomer attempt in 1893 to reform the fingering system, but it failed to catch on. Other attempts to improve the instrument included a 24-keyed model and a single-reed mouthpiece, but both these had adverse effects on tone and were abandoned.
Coming into the 20th century, the Heckel-style German model of bassoon dominated the field. Heckel himself had made over 1,100 instruments by the turn of the 20th century (serial numbers begin at 3,000), and the British makers' instruments were no longer desirable for the changing pitch requirements of the symphony orchestra, remaining primarily in military band use.
Except for a brief 1940s wartime conversion to ball bearing manufacture, the Heckel concern has produced instruments continuously to the present day. Heckel bassoons are considered by many to be the best, although a range of Heckel-style instruments is available from several other manufacturers, all with slightly different playing characteristics.
Because its mechanism is primitive compared to most modern woodwinds, makers have occasionally attempted to "reinvent" the bassoon. In the 1960s, Giles Brindley began to develop what he called the "logical bassoon", which aimed to improve intonation and evenness of tone through use of an electrically activated mechanism, making possible key combinations too complex for the human hand to manage. Brindley's logical bassoon was never marketed.
Buffet (French) system
The Buffet system bassoon achieved its basic acoustical properties somewhat earlier than the Heckel. Thereafter, it continued to develop in a more conservative manner. While the early history of the Heckel bassoon included a complete overhaul of the instrument in both acoustics and key work, the development of the Buffet system consisted primarily of incremental improvements to the key work. This minimalist approach of the Buffet deprived it of improved consistency of intonation, ease of operation, and increased power, which is found in Heckel bassoons, but the Buffet is considered by some to have a more vocal and expressive quality. The conductor John Foulds lamented in 1934 the dominance of the Heckel-style bassoon, considering them too homogeneous in sound with the horn. The modern Buffet system has 22 keys with its range being the same as the Heckel; although Buffet instruments have greater facility in the upper registers, reaching E<sub>5</sub> and F<sub>5</sub> with far greater ease and less air resistance.
Compared to the Heckel bassoon, Buffet system bassoons have a narrower bore and simpler mechanism, requiring different, and often more complex fingerings for many notes. Switching between Heckel and Buffet, or vice versa, requires extensive retraining. French woodwind instruments' tone in general exhibits a certain amount of "edge", with more of a vocal quality than is usual elsewhere, and the Buffet bassoon is no exception. This sound has been utilised effectively in writing for Buffet bassoon, but is less inclined to blend than the tone of the Heckel bassoon. As with all bassoons, the tone varies considerably, depending on individual instrument, reed, and performer. In the hands of a lesser player, the Heckel bassoon can sound flat and woody, but good players succeed in producing a vibrant, singing tone. Conversely, a poorly played Buffet can sound buzzy and nasal, but good players succeed in producing a warm, expressive sound.
Though the United Kingdom once favored the French system,}} Buffet-system instruments are no longer made there and the last prominent British player of the French system retired in the 1980s. However, with continued use in some regions and its distinctive tone, the Buffet continues to have a place in modern bassoon playing, particularly in France, where it originated. Buffet-model bassoons are currently made in Paris by Buffet Crampon and the atelier Ducasse (Romainville, France). The Selmer Company stopped fabrication of French system bassoons around the year 2012. Some players, for example the late Gerald Corey in Canada, have learned to play both types and will alternate between them depending on the repertoire.
Use in ensembles
Ensembles prior to the 20th century
Pre-1760
Prior to 1760, the early ancestor of the bassoon was the dulcian. It was used to reinforce the bass line in wind ensembles called consorts. In his Bassoon Concerto in B-flat major, K. 191, W. A. Mozart utilized all aspects of the bassoon's expressiveness with its contrasts in register, staccato playing, and expressive sound, and was especially noted for its singing quality in the second movement. Technological advances also caused the bassoon's tenor register sound to become more resonant, and playing in this register grew in popularity, especially in the Austro-Germanic musical world. Pedagogues such as Josef Frohlich instructed students to practice scales, thirds, and fourths as vocal students would. In 1829, he wrote that the bassoon was capable of expressing "the worthy, the virile, the solemn, the great, the sublime, composure, mildness, intimacy, emotion, longing, heartfulness, reverence, and soulful ardour." and Alexandre Ouzounoff have both recorded jazz, exploiting the flexibility of the Buffet system instrument to good effect.
Popular music
]]
In conjunction with the use of electronic pickups and amplification, the instrument began to be used more somewhat in jazz and rock settings.), "Jennifer Juniper" by Donovan, "59th Street Bridge Song" by Harpers Bizarre, and the oompah bassoon underlying The New Vaudeville Band's "Winchester Cathedral". From 1974 to 1978, the bassoon was played by Lindsay Cooper in the British avant-garde band Henry Cow. The Leonard Nimoy song "The Ballad of Bilbo Baggins" features the bassoon. In the 1970s it was played, in the British medieval/progressive rock band Gryphon, by Brian Gulland, as well as by the American band Ambrosia, where it was played by drummer Burleigh Drummond. The Belgian Rock in Opposition-band Univers Zero is also known for its use of the bassoon.
More recently, These New Puritans's 2010 album Hidden makes heavy use of the instrument throughout; their principal songwriter, Jack Barnett, claimed repeatedly to be "writing a lot of music for bassoon" in the run-up to its recording. The rock band Better Than Ezra took their name from a passage in Ernest Hemingway's A Moveable Feast in which the author comments that listening to an annoyingly talkative person is still "better than Ezra learning how to play the bassoon", referring to Ezra Pound.
British psychedelic/progressive rock band Knifeworld features the bassoon playing of Chloe Herrington, who also plays for experimental chamber rock orchestra Chrome Hoof.
Fiona Apple featured the bassoon in the opening track of her 2004 album Extraordinary Machine.
In 2016, the bassoon was featured on the album Gang Signs and Prayers by UK "grime" artist Stormzy. Played by UK bassoonist Louise Watson, the bassoon is heard in the tracks "Cold" and "Mr Skeng" as a complement to the electronic synthesizer bass lines typically found in this genre.
Appearance in Television
The Cartoon Network animated series Over the Garden Wall features a bassoon in episode 6 entitled "Lullaby in Frogland", where the main character is encouraged to play the bassoon to impress a group of frogs.
The character Jan Bellows in the Hulu series Only Murders in the Building is a professional bassoonist.
Technique
<sub>1</sub> E<sub>5</sub> A<sub>5</sub>)
|description |filename2 Bassoon-technical-bflatoctaves.ogg
|title2 = Tone across octaves (B<sub>1</sub> B<sub>2</sub> B<sub>3</sub> B<sub>4</sub>)
|description2 |filename3 Bassoon-technical-chromatic.ogg
|title3 = Chromatic scale (B<sub>1</sub> to B<sub>4</sub>)
|description3 |filename4 Bassoon-technical-articulations.ogg
|title4 = Articulations (staccato, legato, legato+vibrato, slurred)
|description4 |filename5 Bassoon-technical-dynamics.ogg
|title5 = Dynamics
|description5 |filename6 Bassoon-technical-trills.ogg
|title6 = Trills (B<sub>4</sub> to C<sub>5</sub>, B<sub>3</sub> to C<sub>4</sub>, B<sub>2</sub> to C<sub>3</sub>)
|description6 |filename7 Bassoon-technical-mouthbend.ogg
|title7 = Embouchure bending
|description7 |filename8 Bassoon-technical-reed.ogg
|title8 = Bassoon reed alone or crowing
|description8 |filename9 Bassoon-technical-fluttertongue.ogg
|title9 = Flutter tonguing
|description9 =
}}
.]]
The bassoon is held diagonally in front of the player, but unlike the flute, oboe and clarinet, it cannot be easily supported by the player's hands alone. Some means of additional support is usually required; the most common ones are a seat strap attached to the base of the boot joint, which is laid across the chair seat prior to sitting down, or a neck strap or shoulder harness attached to the top of the boot joint. Occasionally a spike similar to those used for the cello or the bass clarinet is attached to the bottom of the boot joint and rests on the floor. It is possible to play while standing up if the player uses a neck strap or similar harness, or if the seat strap is tied to the belt. Sometimes a device called a balance hanger is used when playing in a standing position. This is installed between the instrument and the neck strap, and shifts the point of support closer to the center of gravity, adjusting the distribution of weight between the two hands.
The bassoon is played with both hands in a stationary position, the left above the right, with five main finger holes on the front of the instrument (nearest the audience) plus a sixth that is activated by an open-standing key. Five additional keys on the front are controlled by the little fingers of each hand. The back of the instrument (nearest the player) has twelve or more keys to be controlled by the thumbs, the exact number varying depending on model.
To stabilize the right hand, many bassoonists use an adjustable comma-shaped apparatus called a "crutch", or a hand rest, which mounts to the boot joint. The crutch is secured with a thumb screw, which also allows the distance that it protrudes from the bassoon to be adjusted. Players rest the curve of the right hand where the thumb joins the palm against the crutch. The crutch also keeps the right hand from tiring and enables the player to keep the finger pads flat on the finger holes and keys.
An aspect of bassoon technique not found on any other woodwind is called flicking. It involves the left hand thumb momentarily pressing, or "flicking" the high A, C and D keys at the beginning of certain notes in the middle octave to achieve a clean slur from a lower note. This eliminates cracking, or brief multiphonics that happens without the use of this technique. Alternatively, a similar method is called "venting", which requires that the register key be used as part of the full fingering as opposed to being open momentarily at the start of the note. This is sometimes called the "European style"; venting raises the intonation of the notes slightly, and it can be advantageous when tuning to higher frequencies. Some bassoonists flick A and B when tongued, for clarity of articulation, but flicking (or venting) is practically ubiquitous for slurs.
While flicking is used to slur up to higher notes, the whisper key is used for lower notes. From the A right below middle C and lower, the whisper key is pressed with the left thumb and held for the duration of the note. This prevents cracking, as low notes can sometimes crack into a higher octave. Both flicking and using the whisper key is especially important to ensure notes speak properly during slurring between high and low registers.
While bassoons are usually critically tuned at the factory, the player nonetheless has a great degree of flexibility of pitch control through the use of breath support, embouchure, and reed profile. Players can also use alternate fingerings to adjust the pitch of many notes. Similar to other woodwind instruments, the length of the bassoon can be increased to lower pitch or decreased to raise pitch. On the bassoon, this is done preferably by changing the bocal to one of a different length, (lengths are denoted by a number on the bocal, usually starting at 0 for the shortest length, and 3 for the longest, but there are some manufacturers who will use other numbers) but it is possible to push the bocal in or out slightly to grossly adjust the pitch.
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Embouchure and sound production
The bassoon embouchure is a very important aspect of producing a full, round, and rich sound on the instrument. The lips are both rolled over the teeth, often with the upper lip further along in an "overbite". The lips provide micromuscular pressure on the entire circumference of the reed, which grossly controls intonation and harmonic excitement, and thus must be constantly modulated with every change of note. How far along the reed the lips are placed affects both tone (with less reed in the mouth making the sound more edged or "reedy", and more reed making it smooth and less projectile) and the way the reed will respond to pressure.
The musculature employed in a bassoon embouchure is primarily around the lips, which pressure the reed into the shapes needed for the desired sound. The jaw is raised or lowered to adjust the oral cavity for better reed control, but the jaw muscles are used much less for upward vertical pressure than in single reeds, only being substantially employed in the very high register. However, double reed students often "bite" the reed with these muscles because the control and tone of the labial and other muscles is still developing, but this generally makes the sound sharp and "choked" as it contracts the aperture of the reed and stifles the vibration of its blades.
Apart from the embouchure proper, students must also develop substantial muscle tone and control in the diaphragm, throat, neck and upper chest, which are all employed to increase and direct air pressure. Air pressure is a very important aspect of the tone, intonation and projection of double reed instruments, affecting these qualities as much, or more than the embouchure does.
Attacking a note on the bassoon with imprecise amounts of muscle or air pressure for the desired pitch will result in poor intonation, cracking or multiphonics, accidentally producing the incorrect partial, or the reed not speaking at all. These problems are compounded by the individual qualities of reeds, which are categorically inconsistent in behaviour for inherent and exherent reasons.
The muscle requirements and variability of reeds mean it takes some time for bassoonists (and oboists) to develop an embouchure that exhibits consistent control across all reeds, dynamics and playing environments.
Modern fingering
The fingering technique of the bassoon varies more between players, by a wide margin, than that of any other orchestral woodwind. The complex mechanism and acoustics mean the bassoon lacks simple fingerings of good sound quality or intonation for some notes (especially in the higher range), but, conversely, there is a great variety of superior, but generally more complicated, fingerings for them. Typically, the simpler fingerings for such notes are used as alternate or trill fingerings, and the bassoonist will use as "full fingering" one or several of the more complex executions possible, for optimal sound quality. The fingerings used are at the discretion of the bassoonist, and, for particular passages, he or she may experiment to find new alternate fingerings that are thus idiomatic to the player.
These elements have resulted in both "full" and alternate fingerings differing extensively between bassoonists, and are further informed by factors such as cultural difference in what sound is sought, how reeds are made, and regional variation in tuning frequencies (necessitating sharper or flatter fingerings). Regional enclaves of bassoonists tend to have some uniformity in technique, but on a global scale, technique differs such that two given bassoonists may share no fingerings for certain notes. Owing to these factors, ubiquitous bassoon technique can only be partially notated.
The left thumb operates nine keys: B<sub>1</sub>, B<sub>1</sub>, C<sub>2</sub>, D<sub>2</sub>, D<sub>5</sub>, C<sub>5</sub> (also B<sub>4</sub>), two keys when combined create A<sub>4</sub>, and the whisper key. The whisper key should be held down for notes between and including F<sub>2</sub> and G<sub>3</sub> and certain other notes; it can be omitted, but the pitch will destabilise. Additional notes can be created with the left thumb keys; the D<sub>2</sub> and bottom key above the whisper key on the tenor joint (C key) together create both C<sub>3</sub> and C<sub>4</sub>. The same bottom tenor-joint key is also used, with additional fingering, to create E<sub>5</sub> and F<sub>5</sub>. D<sub>5</sub> and C<sub>5</sub> together create C<sub>5</sub>. When the two keys on the tenor joint to create A<sub>4</sub> are used with slightly altered fingering on the boot joint, B<sub>4</sub> is created. The whisper key may also be used at certain points throughout the instrument's high register, along with other fingerings, to alter sound quality as desired.
The right thumb operates four keys. The uppermost key is used to produce B<sub>2</sub> and B<sub>3</sub>, and may be used in B<sub>4</sub>,F<sub>4</sub>, C<sub>5</sub>, D<sub>5</sub>, F<sub>5</sub>, and E<sub>5</sub>. The large circular key, otherwise known as the "pancake key", is held down for all the lowest notes from E<sub>2</sub> down to B<sub>1</sub>. It is also used, like the whisper key, in additional fingerings for muting the sound. For example, in Ravel's "Boléro", the bassoon is asked to play the ostinato on G<sub>4</sub>. This is easy to perform with the normal fingering for G<sub>4</sub>, but Ravel directs that the player should also depress the E<sub>2</sub> key (pancake key) to mute the sound (this being written with Buffet system in mind; the G fingering on which involves the Bb key – sometimes called "French" G on Heckel). The next key operated by the right thumb is known as the "spatula key": its primary use is to produce F<sub>2</sub> and F<sub>3</sub>. The lowermost key is used less often: it is used to produce A<sub>2</sub> (G<sub>2</sub>) and A<sub>3</sub> (G<sub>3</sub>), in a manner that avoids sliding the right fourth finger from another note.
The four fingers of the left hand can each be used in two different positions. The key normally operated by the index finger is primarily used for E<sub>5</sub>, also serving for trills in the lower register. Its main assignment is the upper tone hole. This hole can be closed fully, or partially by rolling down the finger. This half-holing technique is used to overblow F<sub>3</sub>, G<sub>3</sub> and G<sub>3</sub>. The middle finger typically stays on the centre hole on the tenor joint. It can also move to a lever used for E<sub>5</sub>, also a trill key. The ring finger operates, on most models, one key. Some bassoons have an alternate E key above the tone hole, predominantly for trills, but many do not. The smallest finger operates two side keys on the bass joint. The lower key is typically used for C<sub>2</sub>, but can be used for muting or flattening notes in the tenor register. The upper key is used for E<sub>2</sub>, E<sub>4</sub>, F<sub>4</sub>, F<sub>4</sub>, A<sub>4</sub>, B<sub>4</sub>, B<sub>4</sub>, C<sub>5</sub>, C<sub>5</sub>, and D<sub>5</sub>; it flattens G<sub>3</sub> and is the standard fingering for it in many places that tune to lower Hertz levels such as A440.
The four fingers of the right hand have at least one assignment each. The index finger stays over one hole, except that when E<sub>5</sub> is played a side key at the top of the boot is used (this key also provides a C<sub>3</sub> trill, albeit sharp on D). The middle finger remains stationary over the hole with a ring around it, and this ring and other pads are lifted when the smallest finger on the right hand pushes a lever. The ring finger typically remains stationary on the lower ring-finger key. However, the upper ring-finger key can be used, typically for B<sub>2</sub> and B<sub>3</sub>, in place of the top thumb key on the front of the boot joint; this key comes from the oboe, and some bassoons do not have it because the thumb fingering is practically universal. The smallest finger operates three keys. The backmost one, closest to the bassoonist, is held down throughout most of the bass register. F<sub>4</sub> may be created with this key, as well as G<sub>4</sub>, B<sub>4</sub>, B<sub>4</sub>, and C<sub>5</sub> (the latter three employing solely it to flatten and stabilise the pitch). The lowest key for the smallest finger on the right hand is primarily used for A<sub>2</sub> (G<sub>2</sub>) and A<sub>3</sub> (G<sub>3</sub>) but can be used to improve D<sub>5</sub>, E<sub>5</sub>, and F<sub>5</sub>. The frontmost key is used, in addition to the thumb key, to create G<sub>2</sub> and G<sub>3</sub>; on many bassoons this key operates a different tone hole to the thumb key and produces a slightly flatter F ("duplicated F"); some techniques use one as standard for both octaves and the other for utility, but others use the thumb key for the lower and the fourth finger for the higher.
Extended techniques
Many extended techniques can be performed on the bassoon, such as multiphonics, flutter-tonguing, circular breathing, double tonguing, and harmonics. In the case of the bassoon, flutter-tonguing may be accomplished by "gargling" in the back of the throat as well as by the conventional method of rolling Rs. Multiphonics on the bassoon are plentiful, and can be achieved by using particular alternative fingerings, but are generally heavily influenced by embouchure position. Also, again using certain fingerings, notes may be produced on the instrument that sound lower pitches than the actual range of the instrument. These notes tend to sound very gravelly and out of tune, but technically sound below the low B.
The bassoonist may also produce lower notes than the bottom B by extending the length of bell. This can be achieved by inserting a specially made "low A extension" into the bell, but may also be achieved with a small paper or rubber tube or a clarinet/cor anglais bell sitting inside the bassoon bell (although the note may tend sharp). The effect of this is to convert the lower B into a lower note, almost always A natural; this broadly lowers the pitch of the instrument (most noticeably in the lower register) and will often accordingly convert the lowest B to B (and render the neighbouring C very flat). The idea of using low A was begun by Richard Wagner, who wanted to extend the range of the bassoon. Many passages in his later operas require the low A as well as the B-flat immediately above it; this is possible on a normal bassoon using an extension which also flattens low B to B, but all extensions to the bell have significant effects on intonation and sound quality in the bottom register of the instrument, and passages such as this are more often realised with comparative ease by the contrabassoon.
Some bassoons have been specially made to allow bassoonists to realize similar passages. These bassoons are made with a "Wagner bell" which is an extended bell with a key for both the low A and the low B-flat, but they are not widespread; bassoons with Wagner bells suffer similar intonational problems as a bassoon with an ordinary A extension, and a bassoon must be constructed specifically to accommodate one, making the extension option far less complicated. Extending the bassoon's range even lower than the A, though possible, would have even stronger effects on pitch and make the instrument effectively unusable.
Despite the logistic difficulties of the note, Wagner was not the only composer to write the low A. Another composer who has required the bassoon to be chromatic down to low A is Gustav Mahler. Richard Strauss also calls for the low A in his opera Intermezzo. Some works have optional low As, as in Carl Nielsen's Wind Quintet, op. 43, which includes an optional low A for the final cadence of the work.
Learning the bassoon
The complex fingering system and the expense and lack of access to quality bassoon reeds can make the bassoon more of a challenge to learn than some of the other woodwind instruments. Cost is another factor in a person's decision to pursue the bassoon. Prices may range from US$7,000 to over $45,000 for a high-quality instrument. In North America, schoolchildren may take up bassoon only after starting on another reed instrument, such as clarinet or saxophone.
Students in America often begin to pursue the study of bassoon performance and technique in the middle years of their music education, often in association with their school band program. Students are often provided with a school instrument and encouraged to pursue lessons with private instructors. Students typically receive instruction in proper posture, hand position, embouchure, repertoire, and tone production.
See also
* List of bassoonists
* Bassoon makers
* Bassoon repertoire
* International Double Reed Society
* British Double Reed Society
References
Citations
Sources
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Further reading
* The Double Reed (published quarterly), I.D.R.S. Publications
* Journal of the International Double Reed Society (1972–1999, in 2000 merged with The Double Reed), I.D.R.S. Publications
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* Jansen, Will, The Bassoon: Its History, Construction, Makers, Players, and Music, Uitgeverij F. Knuf, 1978. 5 volumes
* 297 pages; a scholarly history
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External links
* [https://web.archive.org/web/20131111041123/http://www.plattner.in/en/filmprojects/presentation-film-francois-de-rudder-production-of-a-bassoon-firenze Documentary: The Production of a Bassoon by Francois de Rudder]
* [https://web.archive.org/web/20110725194847/http://www.contrabassoon.org/contrabassoonists.htm Internet Contrabassoon Resource]
* [http://www.wfg.woodwind.org/bassoon/ Bassoon Fingering Charts]
* [http://www.mmimports.com/2012/07/bassoon-keywork-options/ A Guide to Bassoon Keywork]
Category:Bassoons
Category:Baroque instruments
Category:Orchestral instruments
Category:Concert band instruments | https://en.wikipedia.org/wiki/Bassoon | 2025-04-05T18:26:44.401040 |
4210 | Bipedalism | , the co-fastest extant biped along with the red kangaroo, at ]]
Bipedalism is a form of terrestrial locomotion where an animal moves by means of its two rear (or lower) limbs or legs. An animal or machine that usually moves in a bipedal manner is known as a biped , meaning 'two feet' (from Latin bis 'double' and pes 'foot'). Types of bipedal movement include walking or running (a bipedal gait) and hopping.
Several groups of modern species are habitual bipeds whose normal method of locomotion is two-legged. In the Triassic period some groups of archosaurs (a group that includes crocodiles and dinosaurs) developed bipedalism; among the dinosaurs, all the early forms and many later groups were habitual or exclusive bipeds; the birds are members of a clade of exclusively bipedal dinosaurs, the theropods. Within mammals, habitual bipedalism has evolved multiple times, with the macropods, kangaroo rats and mice, springhare, hopping mice, pangolins and hominin apes (australopithecines, including humans) as well as various other extinct groups evolving the trait independently.
A larger number of modern species intermittently or briefly use a bipedal gait. Several lizard species move bipedally when running, usually to escape from threats. Many primate and bear species will adopt a bipedal gait in order to reach food or explore their environment, though there are a few cases where they walk on their hind limbs only. Several arboreal primate species, such as gibbons and indriids, exclusively walk on two legs during the brief periods they spend on the ground. Many animals rear up on their hind legs while fighting or copulating. Some animals commonly stand on their hind legs to reach food, keep watch, threaten a competitor or predator, or pose in courtship, but do not move bipedally.
Etymology
The word is derived from the Latin words bi(s) 'two' and ped- 'foot', as contrasted with quadruped 'four feet'.
Advantages
Limited and exclusive bipedalism can offer a species several advantages. Bipedalism raises the head; this allows a greater field of vision with improved detection of distant dangers or resources, access to deeper water for wading animals and allows the animals to reach higher food sources with their mouths. While upright, non-locomotory limbs become free for other uses, including manipulation (in primates and rodents), flight (in birds), digging (in the giant pangolin), combat (in bears, great apes and the large monitor lizard) or camouflage.
The maximum bipedal speed appears slower than the maximum speed of quadrupedal movement with a flexible backbone – both the ostrich and the red kangaroo can reach speeds of , while the cheetah can exceed . Even though bipedalism is slower at first, over long distances, it has allowed humans to outrun most other animals according to the endurance running hypothesis. Bipedality in kangaroo rats has been hypothesized to improve locomotor performance, which could aid in escaping from predators.Facultative and obligate bipedalismZoologists often label behaviors, including bipedalism, as "facultative" (i.e. optional) or "obligate" (the animal has no reasonable alternative). Even this distinction is not completely clear-cut — for example, humans other than infants normally walk and run in biped fashion, but almost all can crawl on hands and knees when necessary. There are even reports of humans who normally walk on all fours with their feet but not their knees on the ground, but these cases are a result of conditions such as Uner Tan syndrome — very rare genetic neurological disorders rather than normal behavior. Even if one ignores exceptions caused by some kind of injury or illness, there are many unclear cases, including the fact that "normal" humans can crawl on hands and knees. This article therefore avoids the terms "facultative" and "obligate", and focuses on the range of styles of locomotion normally used by various groups of animals. Normal humans may be considered "obligate" bipeds because the alternatives are very uncomfortable and usually only resorted to when walking is impossible.
Movement
There are a number of states of movement commonly associated with bipedalism.
#Standing. Staying still on both legs. In most bipeds this is an active process, requiring constant adjustment of balance.
#Walking. One foot in front of another, with at least one foot on the ground at any time.
#Running. One foot in front of another, with periods where both feet are off the ground.
#Jumping/hopping. Moving by a series of jumps with both feet moving together.
Bipedal animals
The great majority of living terrestrial vertebrates are quadrupeds, with bipedalism exhibited by only a handful of living groups. Humans, gibbons and large birds walk by raising one foot at a time. On the other hand, most macropods, smaller birds, lemurs and bipedal rodents move by hopping on both legs simultaneously. Tree kangaroos are able to walk or hop, most commonly alternating feet when moving arboreally and hopping on both feet simultaneously when on the ground.
Extant reptiles
Many species of lizards become bipedal during high-speed, sprint locomotion, Its long hind-legs, short forelegs, and distinctive joints all suggest bipedalism. The species became extinct in the early Permian.Archosaurs (includes crocodilians and dinosaurs)BirdsAll birds are bipeds, as is the case for all theropod dinosaurs. However, hoatzin chicks have claws on their wings which they use for climbing.Other archosaursBipedalism evolved more than once in archosaurs, the group that includes both dinosaurs and crocodilians. All dinosaurs are thought to be descended from a fully bipedal ancestor, perhaps similar to Eoraptor.
Dinosaurs diverged from their archosaur ancestors approximately 230 million years ago during the Middle to Late Triassic period, roughly 20 million years after the Permian-Triassic extinction event wiped out an estimated 95 percent of all life on Earth. Radiometric dating of fossils from the early dinosaur genus Eoraptor establishes its presence in the fossil record at this time. Paleontologists suspect Eoraptor resembles the common ancestor of all dinosaurs; if this is true, its traits suggest that the first dinosaurs were small, bipedal predators. The discovery of primitive, dinosaur-like ornithodirans such as Marasuchus and Lagerpeton in Argentinian Middle Triassic strata supports this view; analysis of recovered fossils suggests that these animals were indeed small, bipedal predators.
Bipedal movement also re-evolved in a number of other dinosaur lineages such as the iguanodonts. Some extinct members of Pseudosuchia, a sister group to the avemetatarsalians (the group including dinosaurs and relatives), also evolved bipedal forms – a poposauroid from the Triassic, Effigia okeeffeae, is thought to have been bipedal. Pterosaurs were previously thought to have been bipedal, but recent trackways have all shown quadrupedal locomotion.
Mammals
A number of groups of extant mammals have independently evolved bipedalism as their main form of locomotion for example, humans, ground pangolins, the extinct giant ground sloths, numerous species of jumping rodents and macropods. Humans, as their bipedalism has been extensively studied, are documented in the next section. Macropods are believed to have evolved bipedal hopping only once in their evolution, at some time no later than 45 million years ago.
Bipedal movement is less common among mammals, most of which are quadrupedal. All primates possess some bipedal ability, though most species primarily use quadrupedal locomotion on land. Primates aside, the macropods (kangaroos, wallabies and their relatives), kangaroo rats and mice, hopping mice and springhare move bipedally by hopping. Very few non-primate mammals commonly move bipedally with an alternating leg gait. Exceptions are the ground pangolin and in some circumstances the tree kangaroo. One black bear, Pedals, became famous locally and on the internet for having a frequent bipedal gait, although this is attributed to injuries on the bear's front paws. A two-legged fox was filmed in a Derbyshire garden in 2023, most likely having been born that way.Primates
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Most bipedal animals move with their backs close to horizontal, using a long tail to balance the weight of their bodies. The primate version of bipedalism is unusual because the back is close to upright (completely upright in humans), and the tail may be absent entirely. Many primates can stand upright on their hind legs without any support.
Chimpanzees, bonobos, gorillas, gibbons and baboons exhibit forms of bipedalism. On the ground sifakas move like all indrids with bipedal sideways hopping movements of the hind legs, holding their forelimbs up for balance. Geladas, although usually quadrupedal, will sometimes move between adjacent feeding patches with a squatting, shuffling bipedal form of locomotion. However, they can only do so for brief amounts, as their bodies are not adapted for constant bipedal locomotion.
Humans are the only primates who are normally biped, due to an extra curve in the spine which stabilizes the upright position, as well as shorter arms relative to the legs than is the case for the nonhuman great apes. The evolution of human bipedalism began in primates about four million years ago, or as early as seven million years ago with Sahelanthropus or about 12 million years ago with Danuvius guggenmosi. One hypothesis for human bipedalism is that it evolved as a result of differentially successful survival from carrying food to share with group members, although there are alternative hypotheses.
; Injured individuals
Injured chimpanzees and bonobos have been capable of sustained bipedalism.
Three captive primates, one macaque Natasha and two chimps, Oliver and Poko (chimpanzee), were found to move bipedally. Natasha switched to exclusive bipedalism after an illness, while Poko was discovered in captivity in a tall, narrow cage. Oliver reverted to knuckle-walking after developing arthritis. Non-human primates often use bipedal locomotion when carrying food, or while moving through shallow water.
Limited bipedalism
Limited bipedalism in mammals
Other mammals engage in limited, non-locomotory, bipedalism. A number of other animals, such as rats, raccoons, and beavers will squat on their hindlegs to manipulate some objects but revert to four limbs when moving (the beaver will move bipedally if transporting wood for their dams, as will the raccoon when holding food). Bears will fight in a bipedal stance to use their forelegs as weapons. A number of mammals will adopt a bipedal stance in specific situations such as for feeding or fighting. Ground squirrels and meerkats will stand on hind legs to survey their surroundings, but will not walk bipedally. Dogs (e.g. Faith) can stand or move on two legs if trained, or if birth defect or injury precludes quadrupedalism. The gerenuk antelope stands on its hind legs while eating from trees, as did the extinct giant ground sloth and chalicotheres. The spotted skunk will walk on its front legs when threatened, rearing up on its front legs while facing the attacker so that its anal glands, capable of spraying an offensive oil, face its attacker.
Limited bipedalism in non-mammals (and non-birds)
Bipedalism is unknown among the amphibians. Among the non-archosaur reptiles bipedalism is rare, but it is found in the "reared-up" running of lizards such as agamids and monitor lizards. One genus of basilisk lizard can run bipedally across the surface of water for some distance. Among arthropods, cockroaches are known to move bipedally at high speeds. Bipedalism is rarely found outside terrestrial animals, though at least two species of octopus walk bipedally on the sea floor using two of their arms, allowing the remaining arms to be used to camouflage the octopus as a mat of algae or a floating coconut.Evolution of human bipedalism
There are at least twelve distinct hypotheses as to how and why bipedalism evolved in humans, and also some debate as to when. Bipedalism evolved well before the large human brain or the development of stone tools. Bipedal specializations are found in Australopithecus fossils from 4.2 to 3.9 million years ago and recent studies have suggested that obligate bipedal hominid species were present as early as 7 million years ago. Nonetheless, the evolution of bipedalism was accompanied by significant evolutions in the spine including the forward movement in position of the foramen magnum, where the spinal cord leaves the cranium. Recent evidence regarding modern human sexual dimorphism (physical differences between male and female) in the lumbar spine has been seen in pre-modern primates such as Australopithecus africanus. This dimorphism has been seen as an evolutionary adaptation of females to bear lumbar load better during pregnancy, an adaptation that non-bipedal primates would not need to make. Adapting bipedalism would have required less shoulder stability, which allowed the shoulder and other limbs to become more independent of each other and adapt for specific suspensory behaviors. In addition to the change in shoulder stability, changing locomotion would have increased the demand for shoulder mobility, which would have propelled the evolution of bipedalism forward. The different hypotheses are not necessarily mutually exclusive and a number of selective forces may have acted together to lead to human bipedalism. It is important to distinguish between adaptations for bipedalism and adaptations for running, which came later still.
The form and function of modern-day humans' upper bodies appear to have evolved from living in a more forested setting. Living in this kind of environment would have made it so that being able to travel arboreally would have been advantageous at the time. Although different to human walking, bipedal locomotion in trees was thought to be advantageous. It has also been proposed that, like some modern-day apes, early hominins had undergone a knuckle-walking stage prior to adapting the back limbs for bipedality while retaining forearms capable of grasping. Numerous causes for the evolution of human bipedalism involve freeing the hands for carrying and using tools, sexual dimorphism in provisioning, changes in climate and environment (from jungle to savanna) that favored a more elevated eye-position, and to reduce the amount of skin exposed to the tropical sun. It is possible that bipedalism provided a variety of benefits to the hominin species, and scientists have suggested multiple reasons for evolution of human bipedalism. There is also not only the question of why the earliest hominins were partially bipedal but also why hominins became more bipedal over time. For example, the postural feeding hypothesis describes how the earliest hominins became bipedal for the benefit of reaching food in trees while the savanna-based theory describes how the late hominins that started to settle on the ground became increasingly bipedal.Multiple factorsNapier (1963) argued that it is unlikely that a single factor drove the evolution of bipedalism. He stated "It seems unlikely that any single factor was responsible for such a dramatic change in behaviour. In addition to the advantages of accruing from ability to carry objects – food or otherwise – the improvement of the visual range and the freeing of the hands for purposes of defence and offence may equally have played their part as catalysts." Sigmon (1971) demonstrated that chimpanzees exhibit bipedalism in different contexts, and one single factor should be used to explain bipedalism: preadaptation for human bipedalism. Day (1986) emphasized three major pressures that drove evolution of bipedalism: food acquisition, predator avoidance, and reproductive success. Ko (2015) stated that there are two main questions regarding bipedalism 1. Why were the earliest hominins partially bipedal? and 2. Why did hominins become more bipedal over time? He argued that these questions can be answered with combination of prominent theories such as Savanna-based, Postural feeding, and Provisioning.Savannah-based theory
According to the Savanna-based theory, hominines came down from the tree's branches and adapted to life on the savanna by walking erect on two feet. The theory suggests that early hominids were forced to adapt to bipedal locomotion on the open savanna after they left the trees. One of the proposed mechanisms was the knuckle-walking hypothesis, which states that human ancestors used quadrupedal locomotion on the savanna, as evidenced by morphological characteristics found in Australopithecus anamensis and Australopithecus afarensis forelimbs, and that it is less parsimonious to assume that knuckle walking developed twice in genera Pan and Gorilla instead of evolving it once as synapomorphy for Pan and Gorilla before losing it in Australopithecus. The evolution of an orthograde posture would have been very helpful on a savanna as it would allow the ability to look over tall grasses in order to watch out for predators, or terrestrially hunt and sneak up on prey. It was also suggested in P. E. Wheeler's "The evolution of bipedality and loss of functional body hair in hominids", that a possible advantage of bipedalism in the savanna was reducing the amount of surface area of the body exposed to the sun, helping regulate body temperature. In fact, Elizabeth Vrba's turnover pulse hypothesis supports the savanna-based theory by explaining the shrinking of forested areas due to global warming and cooling, which forced animals out into the open grasslands and caused the need for hominids to acquire bipedality.
Others state hominines had already achieved the bipedal adaptation that was used in the savanna. The fossil evidence reveals that early bipedal hominins were still adapted to climbing trees at the time they were also walking upright. It is possible that bipedalism evolved in the trees, and was later applied to the savanna as a vestigial trait. Humans and orangutans are both unique to a bipedal reactive adaptation when climbing on thin branches, in which they have increased hip and knee extension in relation to the diameter of the branch, which can increase an arboreal feeding range and can be attributed to a convergent evolution of bipedalism evolving in arboreal environments. Hominine fossils found in dry grassland environments led anthropologists to believe hominines lived, slept, walked upright, and died only in those environments because no hominine fossils were found in forested areas. However, fossilization is a rare occurrence—the conditions must be just right in order for an organism that dies to become fossilized for somebody to find later, which is also a rare occurrence. The fact that no hominine fossils were found in forests does not ultimately lead to the conclusion that no hominines ever died there. The convenience of the savanna-based theory caused this point to be overlooked for over a hundred years. In an experiment monitoring chimpanzee metabolic rate via oxygen consumption, it was found that the quadrupedal and bipedal energy costs were very similar, implying that this transition in early ape-like ancestors would not have been very difficult or energetically costing. This increased travel efficiency is likely to have been selected for as it assisted foraging across widely dispersed resources.Postural feeding hypothesisThe postural feeding hypothesis has been recently supported by Dr. Kevin Hunt, a professor at Indiana University. This hypothesis asserts that chimpanzees were only bipedal when they eat. While on the ground, they would reach up for fruit hanging from small trees and while in trees, bipedalism was used to reach up to grab for an overhead branch. These bipedal movements may have evolved into regular habits because they were so convenient in obtaining food. Also, Hunt's hypotheses states that these movements coevolved with chimpanzee arm-hanging, as this movement was very effective and efficient in harvesting food. When analyzing fossil anatomy, Australopithecus afarensis has very similar features of the hand and shoulder to the chimpanzee, which indicates hanging arms. Also, the Australopithecus hip and hind limb very clearly indicate bipedalism, but these fossils also indicate very inefficient locomotive movement when compared to humans. For this reason, Hunt argues that bipedalism evolved more as a terrestrial feeding posture than as a walking posture.Provisioning modelOne theory on the origin of bipedalism is the behavioral model presented by C. Owen Lovejoy, known as "male provisioning". Lovejoy theorizes that the evolution of bipedalism was linked to monogamy. In the face of long inter-birth intervals and low reproductive rates typical of the apes, early hominids engaged in pair-bonding that enabled greater parental effort directed towards rearing offspring. Lovejoy proposes that male provisioning of food would improve the offspring survivorship and increase the pair's reproductive rate. Thus the male would leave his mate and offspring to search for food and return carrying the food in his arms walking on his legs. This model is supported by the reduction ("feminization") of the male canine teeth in early hominids such as Sahelanthropus tchadensis and Ardipithecus ramidus, which along with low body size dimorphism in Ardipithecus and Australopithecus, suggests a reduction in inter-male antagonistic behavior in early hominids. In addition, this model is supported by a number of modern human traits associated with concealed ovulation (permanently enlarged breasts, lack of sexual swelling) and low sperm competition (moderate sized testes, low sperm mid-piece volume) that argues against recent adaptation to a polygynous reproductive system. Furthermore, as the species became more bipedal, specialized feet would prevent the infant from conveniently clinging to the mother hampering the mother's freedom and thus make her and her offspring more dependent on resources collected by others. Modern monogamous primates such as gibbons tend to be also territorial, but fossil evidence indicates that Australopithecus afarensis lived in large groups. However, while both gibbons and hominids have reduced canine sexual dimorphism, female gibbons enlarge ('masculinize') their canines so they can actively share in the defense of their home territory. Instead, the reduction of the male hominid canine is consistent with reduced inter-male aggression in a pair-bonded though group living primate.Early bipedalism in homininae modelRecent studies of 4.4 million years old Ardipithecus ramidus suggest bipedalism. It is thus possible that bipedalism evolved very early in homininae and was reduced in chimpanzee and gorilla when they became more specialized. Other recent studies of the foot structure of Ardipithecus ramidus suggest that the species was closely related to African-ape ancestors. This possibly provides a species close to the true connection between fully bipedal hominins and quadruped apes. According to Richard Dawkins in his book "The Ancestor's Tale", chimps and bonobos are descended from Australopithecus gracile type species while gorillas are descended from Paranthropus. These apes may have once been bipedal, but then lost this ability when they were forced back into an arboreal habitat, presumably by those australopithecines from whom eventually evolved hominins. Early hominines such as Ardipithecus ramidus may have possessed an arboreal type of bipedalism that later independently evolved towards knuckle-walking in chimpanzees and gorillas and towards efficient walking and running in modern humans (see figure). It is also proposed that one cause of Neanderthal extinction was a less efficient running.
Warning display (aposematic) model
Joseph Jordania from the University of Melbourne recently (2011) suggested that bipedalism was one of the central elements of the general defense strategy of early hominids, based on aposematism, or warning display and intimidation of potential predators and competitors with exaggerated visual and audio signals. According to this model, hominids were trying to stay as visible and as loud as possible all the time. Several morphological and behavioral developments were employed to achieve this goal: upright bipedal posture, longer legs, long tightly coiled hair on the top of the head, body painting, threatening synchronous body movements, loud voice and extremely loud rhythmic singing/stomping/drumming on external subjects. Slow locomotion and strong body odor (both characteristic for hominids and humans) are other features often employed by aposematic species to advertise their non-profitability for potential predators.
Other behavioural models
There are a variety of ideas which promote a specific change in behaviour as the key driver for the evolution of hominid bipedalism. For example, Wescott (1967) and later Jablonski & Chaplin (1993) suggest that bipedal threat displays could have been the transitional behaviour which led to some groups of apes beginning to adopt bipedal postures more often. Others (e.g. Dart 1925) have offered the idea that the need for more vigilance against predators could have provided the initial motivation. Dawkins (e.g. 2004) has argued that it could have begun as a kind of fashion that just caught on and then escalated through sexual selection. And it has even been suggested (e.g. Tanner 1981:165) that male phallic display could have been the initial incentive, as well as increased sexual signaling in upright female posture. When a hominid is higher above the ground, the organism accesses more favorable wind speeds and temperatures. During heat seasons, greater wind flow results in a higher heat loss, which makes the organism more comfortable. Also, Wheeler explains that a vertical posture minimizes the direct exposure to the sun whereas quadrupedalism exposes more of the body to direct exposure. Analysis and interpretations of Ardipithecus reveal that this hypothesis needs modification to consider that the forest and woodland environmental preadaptation of early-stage hominid bipedalism preceded further refinement of bipedalism by the pressure of natural selection. This then allowed for the more efficient exploitation of the hotter conditions ecological niche, rather than the hotter conditions being hypothetically bipedalism's initial stimulus. A feedback mechanism from the advantages of bipedality in hot and open habitats would then in turn make a forest preadaptation solidify as a permanent state.
Carrying models
Charles Darwin wrote that "Man could not have attained his present dominant position in the world without the use of his hands, which are so admirably adapted to the act of obedience of his will". Darwin (1871:52) and many models on bipedal origins are based on this line of thought. Gordon Hewes (1961) suggested that the carrying of meat "over considerable distances" (Hewes 1961:689) was the key factor. Isaac (1978) and Sinclair et al. (1986) offered modifications of this idea, as indeed did Lovejoy (1981) with his "provisioning model" described above. Others, such as Nancy Tanner (1981), have suggested that infant carrying was key, while others again have suggested stone tools and weapons drove the change. This stone-tools theory is very unlikely, as though ancient humans were known to hunt, the discovery of tools was not discovered for thousands of years after the origin of bipedalism, chronologically precluding it from being a driving force of evolution. (Wooden tools and spears fossilize poorly and therefore it is difficult to make a judgment about their potential usage.)
Wading models
The observation that large primates, including especially the great apes, that predominantly move quadrupedally on dry land, tend to switch to bipedal locomotion in waist deep water, has led to the idea that the origin of human bipedalism may have been influenced by waterside environments. This idea, labelled "the wading hypothesis", was originally suggested by the Oxford marine biologist Alister Hardy who said: "It seems to me likely that Man learnt to stand erect first in water and then, as his balance improved, he found he became better equipped for standing up on the shore when he came out, and indeed also for running." It was then promoted by Elaine Morgan, as part of the aquatic ape hypothesis, who cited bipedalism among a cluster of other human traits unique among primates, including voluntary control of breathing, hairlessness and subcutaneous fat. The "aquatic ape hypothesis", as originally formulated, has not been accepted or considered a serious theory within the anthropological scholarly community. Others, however, have sought to promote wading as a factor in the origin of human bipedalism without referring to further ("aquatic ape" related) factors. Since 2000 Carsten Niemitz has published a series of papers and a book on a variant of the wading hypothesis, which he calls the "amphibian generalist theory" ().
Other theories have been proposed that suggest wading and the exploitation of aquatic food sources (providing essential nutrients for human brain evolution or critical fallback foods) may have exerted evolutionary pressures on human ancestors promoting adaptations which later assisted full-time bipedalism. It has also been thought that consistent water-based food sources had developed early hominid dependency and facilitated dispersal along seas and rivers.
Consequences
Prehistoric fossil records show that early hominins first developed bipedalism before being followed by an increase in brain size. The consequences of these two changes in particular resulted in painful and difficult labor due to the increased favor of a narrow pelvis for bipedalism being countered by larger heads passing through the constricted birth canal. This phenomenon is commonly known as the obstetrical dilemma.
Non-human primates habitually deliver their young on their own, but the same cannot be said for modern-day humans. Isolated birth appears to be rare and actively avoided cross-culturally, even if birthing methods may differ between said cultures. This is due to the fact that the narrowing of the hips and the change in the pelvic angle caused a discrepancy in the ratio of the size of the head to the birth canal. The result of this is that there is greater difficulty in birthing for hominins in general, let alone to be doing it by oneself.PhysiologyBipedal movement occurs in a number of ways and requires many mechanical and neurological adaptations. Some of these are described below.BiomechanicsStandingEnergy-efficient means of standing bipedally involve constant adjustment of balance, and of course these must avoid overcorrection. The difficulties associated with simple standing in upright humans are highlighted by the greatly increased risk of falling present in the elderly, even with minimal reductions in control system effectiveness.Shoulder stability
Shoulder stability would decrease with the evolution of bipedalism. Shoulder mobility would increase because the need for a stable shoulder is only present in arboreal habitats. Shoulder mobility would support suspensory locomotion behaviors which are present in human bipedalism. The forelimbs are freed from weight-bearing requirements, which makes the shoulder a place of evidence for the evolution of bipedalism.WalkingUnlike non-human apes that are able to practice bipedality such as Pan and Gorilla, hominins have the ability to move bipedally without the utilization of a bent-hip-bent-knee (BHBK) gait, which requires the engagement of both the hip and the knee joints. This human ability to walk is made possible by the spinal curvature humans have that non-human apes do not. Rather, walking is characterized by an "inverted pendulum" movement in which the center of gravity vaults over a stiff leg with each step. Force plates can be used to quantify the whole-body kinetic & potential energy, with walking displaying an out-of-phase relationship indicating exchange between the two.
In humans, walking is composed of several separate processes:
Running is characterized by a spring-mass movement. "Quadrupedal species normally synchronize the locomotor and respiratory cycles at a constant ratio of 1:1 (strides per breath) in both the trot and gallop. Human runners differ from quadrupeds in that while running they employ several phase-locked patterns (4:1, 3:1, 2:1, 1:1, 5:2, and 3:2), although a 2:1 coupling ratio appears to be favored. Even though the evolution of bipedal gait has reduced the mechanical constraints on respiration in man, thereby permitting greater flexibility in breathing pattern, it has seemingly not eliminated the need for the synchronization of respiration and body motion during sustained running."
Respiration through bipedality means that there is better breath control in bipeds, which can be associated with brain growth. The modern brain utilizes approximately 20% of energy input gained through breathing and eating, as opposed to species like chimpanzees who use up twice as much energy as humans for the same amount of movement. This excess energy, leading to brain growth, also leads to the development of verbal communication. This is because breath control means that the muscles associated with breathing can be manipulated into creating sounds. This means that the onset of bipedality, leading to more efficient breathing, may be related to the origin of verbal language. those working on such machines have begun using principles gleaned from the study of human and animal locomotion, which often relies on passive mechanisms to minimize power consumption.See also
*Allometry
*Orthograde posture
*Quadrupedalism
Notes
References
Further reading
*Darwin, C., "The Descent of Man and Selection in Relation to Sex", Murray (London), (1871).
*Dart, R. A., "Australopithecus africanus: The Ape Man of South Africa" Nature, 145, 195–199, (1925).
*Dawkins, R., "The Ancestor's Tale", Weidenfeld and Nicolson (London), (2004).
*DeSilva, J., "First Steps: How Upright Walking Made Us Human" HarperCollins (New York), (2021)
*Hewes, G. W., "Food Transport and the Origin of Hominid Bipedalism" American Anthropologist, 63, 687–710, (1961).
*Hunt, K. D., "The Evolution of Human Bipedality" Journal of Human Evolution, 26, 183–202, (1994).
*Isaac, G. I., "The Archeological Evidence for the Activities of Early African Hominids" In:Early Hominids of Africa (Jolly, C.J. (Ed.)), Duckworth (London), 219–254, (1978).
*
*Tanner, N. M., "On Becoming Human", Cambridge University Press (Cambridge), (1981)
*
*Wheeler, P. E. (1984) "The Evolution of Bipedality and Loss of Functional Body Hair in Hominoids." Journal of Human Evolution, 13, 91–98,
*External links
*[http://www.jqjacobs.net/anthro/paleo/bipedalism.html The Origin of Bipedalism]
*[http://humanorigins.si.edu/evidence/human-evolution-timeline-interactive Human Timeline (Interactive)] – Smithsonian, National Museum of Natural History (August 2016)
Category:Terrestrial locomotion
Category:Animal anatomy
Category:2 (number) | https://en.wikipedia.org/wiki/Bipedalism | 2025-04-05T18:26:44.480638 |
4211 | Bootstrapping | In general, bootstrapping usually refers to a self-starting process that is supposed to continue or grow without external input. Many analytical techniques are often called bootstrap methods in reference to their self-starting or self-supporting implementation, such as bootstrapping (statistics), bootstrapping (finance), or bootstrapping (linguistics).
Etymology
Tall boots may have a tab, loop or handle at the top known as a bootstrap, allowing one to use fingers or a boot hook tool to help pull the boots on. The saying "to " was already in use during the 19th century as an example of an impossible task. The idiom dates at least to 1834, when it appeared in the ''Workingman's Advocate: "It is conjectured that Mr. Murphee will now be enabled to hand himself over the Cumberland river or a barn yard fence by the straps of his boots." In 1860 it appeared in a comment on philosophy of mind: "The attempt of the mind to analyze itself [is] an effort analogous to one who would lift himself by his own bootstraps." Bootstrap as a metaphor, meaning to better oneself by one's own unaided efforts, was in use in 1922. This metaphor spawned additional metaphors for a series of self-sustaining processes that proceed without external help.
pulls himself and his horse out of a swamp by his pigtail.]]
The term is sometimes attributed to a story in Rudolf Erich Raspe's The Surprising Adventures of Baron Munchausen, but in that story Baron Munchausen pulls himself (and his horse) out of a swamp by his hair (specifically, his pigtail), not by his bootstraps and no explicit reference to bootstraps has been found elsewhere in the various versions of the Munchausen tales. To request that someone "bootstrap" is to suggest that they might overcome great difficulty by sheer force of will.
Critics have observed that the phrase is used to portray unfair situations as far more meritocratic than they really are. Various studies have found that the main predictor of future wealth is not IQ or hard work, but initial wealth.ApplicationsComputingIn computer technology, the term bootstrapping refers to language compilers that are able to be coded in the same language. (For example, a C compiler is now written in the C language. Once the basic compiler is written, improvements can be iteratively made, thus "pulling the language up by its bootstraps"). Also, booting usually refers to the process of loading the basic software into the memory of a computer after power-on or general reset, the kernel will load the operating system which will then take care of loading other device drivers and software as needed.Software loading and execution
Booting is the process of starting a computer, specifically with regard to starting its software. The process involves a chain of stages, in which at each stage, a relatively small and simple program loads and then executes the larger, more complicated program of the next stage. It is in this sense that the computer "pulls itself up by its bootstraps"; i.e., it improves itself by its own efforts. Booting is a chain of events that starts with execution of hardware-based procedures and may then hand off to firmware and software which is loaded into main memory. Booting often involves processes such as performing self-tests, loading configuration settings, loading a BIOS, resident monitors, a hypervisor, an operating system, or utility software.
The computer term bootstrap began as a metaphor in the 1950s. In computers, pressing a bootstrap button caused a hardwired program to read a bootstrap program from an input unit. The computer would then execute the bootstrap program, which caused it to read more program instructions. It became a self-sustaining process that proceeded without external help from manually entered instructions. As a computing term, bootstrap has been used since at least 1953.Software development
Bootstrapping can also refer to the development of successively more complex, faster programming environments. The simplest environment will be, perhaps, a very basic text editor (e.g., ed) and an assembler program. Using these tools, one can write a more complex text editor, and a simple compiler for a higher-level language and so on, until one can have a graphical IDE and an extremely high-level programming language.
Historically, bootstrapping also refers to an early technique for computer program development on new hardware. The technique described in this paragraph has been replaced by the use of a cross compiler executed by a pre-existing computer. Bootstrapping in program development began during the 1950s when each program was constructed on paper in decimal code or in binary code, bit by bit (1s and 0s), because there was no high-level computer language, no compiler, no assembler, and no linker. A tiny assembler program was hand-coded for a new computer (for example the IBM 650) which converted a few instructions into binary or decimal code: A1. This simple assembler program was then rewritten in its just-defined assembly language but with extensions that would enable the use of some additional mnemonics for more complex operation codes. The enhanced assembler's source program was then assembled by its predecessor's executable (A1) into binary or decimal code to give A2, and the cycle repeated (now with those enhancements available), until the entire instruction set was coded, branch addresses were automatically calculated, and other conveniences (such as conditional assembly, macros, optimisations, etc.) established. This was how the early Symbolic Optimal Assembly Program (SOAP) was developed. Compilers, linkers, loaders, and utilities were then coded in assembly language, further continuing the bootstrapping process of developing complex software systems by using simpler software.
The term was also championed by Doug Engelbart to refer to his belief that organizations could better evolve by improving the process they use for improvement (thus obtaining a compounding effect over time). His SRI team that developed the NLS hypertext system applied this strategy by using the tool they had developed to improve the tool.
Compilers
The development of compilers for new programming languages first developed in an existing language but then rewritten in the new language and compiled by itself, is another example of the bootstrapping notion.
Installers
During the installation of computer programs, it is sometimes necessary to update the installer or package manager itself. The common pattern for this is to use a small executable bootstrapper file (e.g., setup.exe) which updates the installer and starts the real installation after the update. Sometimes the bootstrapper also installs other prerequisites for the software during the bootstrapping process.
Overlay networks
A bootstrapping node, also known as a rendezvous host, is a node in an overlay network that provides initial configuration information to newly joining nodes so that they may successfully join the overlay network.
Discrete-event simulation
A type of computer simulation called discrete-event simulation represents the operation of a system as a chronological sequence of events. A technique called bootstrapping the simulation model is used, which bootstraps initial data points using a pseudorandom number generator to schedule an initial set of pending events, which schedule additional events, and with time, the distribution of event times approaches its steady state—the bootstrapping behavior is overwhelmed by steady-state behavior.
Artificial intelligence and machine learning
Bootstrapping is a technique used to iteratively improve a classifier's performance. Typically, multiple classifiers will be trained on different sets of the input data, and on prediction tasks the output of the different classifiers will be combined.
Seed AI is a hypothesized type of artificial intelligence capable of recursive self-improvement. Having improved itself, it would become better at improving itself, potentially leading to an exponential increase in intelligence. No such AI is known to exist, but it remains an active field of research. Seed AI is a significant part of some theories about the technological singularity: proponents believe that the development of seed AI will rapidly yield ever-smarter intelligence (via bootstrapping) and thus a new era.Statistics
Bootstrapping is a resampling technique used to obtain estimates of summary statistics.
Business
Bootstrapping in business means starting a business without external help or working capital. Entrepreneurs in the startup development phase of their company survive through internal cash flow and are very cautious with their expenses. Generally at the start of a venture, a small amount of money will be set aside for the bootstrap process. Bootstrapping can also be a supplement for econometric models. Bootstrapping was also expanded upon in the book Bootstrap Business by Richard Christiansen, the Harvard Business Review article The Art of Bootstrapping and the follow-up book The Origin and Evolution of New Businesses by Amar Bhide. There is also an entire bible written on how to properly bootstrap by Seth Godin.
Experts have noted that several common stages exist for bootstrapping a business venture:
# Birth-stage: This is the first stage to bootstrapping by which the entrepreneur utilizes any personal savings or borrowed and/or invested money from friends and family to launch the business. It is also possible for the business owner to be running or working for another organization at the time which may help to fuel their business and cover initial expenses.
# Funding from sales to consumers-stage: In this particular stage, money from customers is used to keep the business operating afloat. Once expenses caused by normal day-to-day business operations are met, the rate growth usually increases.
# Outsourcing-stage: At this point in the company's existence, the entrepreneur in question normally concentrates on the specific operating activities. This is the time in which entrepreneurs decide how to improve and upgrade equipment (subsequently increasing output) or even employing new staff members. At this point in time, the company may seek loans or even lean on other methods of additional funding such as venture capital to help with expansion and other improvements.
There are many types of companies that are eligible for bootstrapping. Early-stage companies that do not necessarily require large influxes of capital (particularly from outside sources) qualify. This would specifically allow for flexibility for the business and time to grow. Serial entrepreneur companies could also possibly reap the benefits of bootstrapping. These are organizations whereby the founder has money from the sale of a previous companies they can use to invest.
There are different methods of bootstrapping. Future business owners aspiring to use bootstrapping as way of launching their product or service often use the following methods:
* Using accessible money from their own personal savings.
* Managing their working capital in a way that minimizes their company's accounts receivable.
* Cashing out 401k retirement funds and pay them off at later dates.
* Gradually increasing the business' accounts payable through delaying payments or even renting equipment instead of buying them.
Bootstrapping is often considered successful. When taking into account statistics provided by Fundera, approximately 77% of small business rely on some sort of personal investment and or savings in order to fund their startup ventures. The average small business venture requires approximately $10,000 in startup capital with a third of small business launching with less than $5,000 bootstrapped.
Based on startup data presented by Entrepreneur.com, in comparison other methods of funding, bootstrapping is more commonly used than others. "0.91% of startups are funded by angel investors, while 0.05% are funded by VCs. In contrast, 57 percent of startups are funded by personal loans and credit, while 38 percent receive funding from family and friends."
Some examples of successful entrepreneurs that have used bootstrapping in order to finance their businesses include serial entrepreneur Mark Cuban. He has publicly endorsed bootstrapping claiming that "If you can start on your own … do it by [yourself] without having to go out and raise money." When asked why he believed this approach was most necessary, he replied, "I think the biggest mistake people make is once they have an idea and the goal of starting a business, they think they have to raise money. And once you raise money, that's not an accomplishment, that's an obligation" because "now, you're reporting to whoever you raised money from."
Bootstrapped companies such as Apple Inc. (APPL), eBay Inc. (EBAY) and Coca-Cola Co. have also claimed that they attribute some of their success to the fact that this method of funding enables them to remain highly focused on a specific array of profitable product.
Startups can grow by reinvesting profits in its own growth if bootstrapping costs are low and return on investment is high. This financing approach allows owners to maintain control of their business and forces them to spend with discipline. In addition, bootstrapping allows startups to focus on customers rather than investors, thereby increasing the likelihood of creating a profitable business. This leaves startups with a better exit strategy with greater returns.
Leveraged buyouts, or highly leveraged or "bootstrap" transactions, occur when an investor acquires a controlling interest in a company's equity and where a significant percentage of the purchase price is financed through leverage, i.e. borrowing by the acquired company.
Operation Bootstrap (Operación Manos a la Obra) refers to the ambitious projects that industrialized Puerto Rico in the mid-20th century.
Biology
Richard Dawkins in his book River Out of Eden used the computer bootstrapping concept to explain how biological cells differentiate: "Different cells receive different combinations of chemicals, which switch on different combinations of genes, and some genes work to switch other genes on or off. And so the bootstrapping continues, until we have the full repertoire of different kinds of cells."
Phylogenetics
Bootstrapping analysis gives a way to judge the strength of support for clades on phylogenetic trees. A number is written by a node, which reflects the percentage of bootstrap trees which also resolve the clade at the endpoints of that branch.
Law
Bootstrapping is a rule preventing the admission of hearsay evidence in conspiracy cases.
Linguistics
Bootstrapping is a theory of language acquisition.
Physics
Flatness
Whitworth's three plates method does not rely other flat reference surfaces or other precision instruments, and thus solves the problem of how to create a better precise flat surface.
Quantum theory
Bootstrapping is using very general consistency criteria to determine the form of a quantum theory from some assumptions on the spectrum of particles or operators.
Magnetically confined fusion plasmas
In tokamak fusion devices, bootstrapping refers to the process in which a bootstrap current is self-generated by the plasma, which reduces or eliminates the need for an external current driver. Maximising the bootstrap current is a major goal of advanced tokamak designs.
Inertially confined fusion plasmas
Bootstrapping in inertial confinement fusion refers to the alpha particles produced in the fusion reaction providing further heating to the plasma. This heating leads to ignition and an overall energy gain.
Electronics
Bootstrapping is a form of positive feedback in analog circuit design.
Electric power grid
An electric power grid is almost never brought down intentionally. Generators and power stations are started and shut down as necessary. A typical power station requires power for start up prior to being able to generate power. This power is obtained from the grid, so if the entire grid is down these stations cannot be started.
Therefore, to get a grid started, there must be at least a small number of power stations that can start entirely on their own. A black start is the process of restoring a power station to operation without relying on external power. In the absence of grid power, one or more black starts are used to bootstrap the grid.
Nuclear power
A nuclear power plant always needs to have a way to remove decay heat, which is usually done with electrical cooling pumps. But in the rare case of a complete loss of electrical power, this can still be achieved by booting a turbine generator. As steam builds up in the steam generator, it can be used to power the turbine generator (initially with no oil pumps, circ water pumps, or condensation pumps). Once the turbine generator is producing electricity, the auxiliary pumps can be powered on, and the reactor cooling pumps can be run momentarily. Eventually the steam pressure will become insufficient to power the turbine generator, and the process can be shut down in reverse order. The process can be repeated until no longer needed. This can cause great damage to the turbine generator, but more importantly, it saves the nuclear reactor.
Cellular networks
A Bootstrapping Server Function (BSF) is an intermediary element in cellular networks which provides application independent functions for mutual authentication of user equipment and servers unknown to each other and for 'bootstrapping' the exchange of secret session keys afterwards. The term 'bootstrapping' is related to building a security relation with a previously unknown device first and to allow installing security elements (keys) in the device and the BSF afterwards.
See also
*
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* Robert A. Heinlein's short sci-fi story By His Bootstraps
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* ReferencesExternal links
* [http://dictionary.reference.com/browse/bootstrap Dictionary.com entries for Bootstrap]
* [http://www.thefreedictionary.com/bootstrap Freedictionary.com entries for Bootstrap]
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* [http://www.dougengelbart.org/about/bootstrapping-strategy.html Engelbart Institute on Bootstrapping Strategies]
Category:American English idioms
Category:Metaphors | https://en.wikipedia.org/wiki/Bootstrapping | 2025-04-05T18:26:44.511720 |
4213 | Baltic languages | | ethnicity = Balts
| region = Northern Europe, historically also Eastern Europe and Central Europe
| familycolor = Indo-European
| fam2 = Balto-Slavic
| child1 = Dnieper-Oka Golyad
| child2 = East
| child3 = West
| map = Balts.svg
| mapcaption =
| iso2 = bat
| iso5 = bat
| lingua 54 (phylozone)
| glotto = none
| glotto2 = east2280
| glottoname2 = East Baltic
| glotto3 = prus1238
| glottoname3 = Old Prussian
| protoname = Proto-Baltic
}}
The Baltic languages are a branch of the Indo-European language family spoken natively or as a second language by a population of about 6.5–7.0 million people mainly in areas extending east and southeast of the Baltic Sea in Europe. Together with the Slavic languages, they form the Balto-Slavic branch of the Indo-European family.
Scholars usually regard them as a single subgroup divided into two branches: West Baltic (containing only extinct languages) and East Baltic (containing at least two living languages, Lithuanian, Latvian, and by some counts including Latgalian and Samogitian as separate languages rather than dialects of those two). In addition, the existence of the Dnieper-Oka language is hypothesized, with the extinct Golyad language being the only known member. The range of the East Baltic linguistic influence once possibly reached as far as the Ural Mountains, but this hypothesis has been questioned.
Old Prussian, a Western Baltic language that became extinct in the 18th century, had possibly conserved the greatest number of properties from Proto-Baltic.
Although related, Lithuanian, Latvian, and particularly Old Prussian have lexicons that differ substantially from one another and so the languages are not mutually intelligible. Relatively low mutual interaction for neighbouring languages historically led to gradual erosion of mutual intelligibility, and development of their respective linguistic innovations that did not exist in shared Proto-Baltic. The substantial number of false friends and various uses and sources of loanwords from their surrounding languages are considered to be the major reasons for poor mutual intelligibility today.
Branches
Within Indo-European, the Baltic languages are generally classified as forming a single family with two branches: Eastern and Western Baltic. But these two branches are sometimes classified as independent branches of Balto-Slavic itself.
{| class="wikitable"
|+Baltic languages by number of native speakers
|-
! colspan="2"|East Baltic
|-
| Latvian ||
|-
| Latgalian || 150,000–200,000
|-
| Lithuanian ||
|-
| Samogitian || 500,000
|-
| Selonian || Extinct since 16th century
|-
| Semigallian || Extinct since 16th century
|-
| Old Curonian || Extinct since 16th century
|-
! colspan="2"|West Baltic
|-
| Western Galindian || Extinct since 14th century
|-
| Old Prussian || Extinct since early 18th century
|-
| Pomeranian Baltic || Extinct since the 1st millenium BC
|-
| Skalvian || Extinct since 16th century
|-
| Sudovian || Extinct since 17th century
|-
! colspan"2"|Dnieper-Oka
|-
| Golyad || Extinct since 12th century
|-
! colspan="2"|<small>Italics indicate disputed classification.</small>
|-
! colspan="2"|<small> indicates languages sometimes considered to be dialects.</small>
|-
! colspan="2"|<small> indicates extinct languages.</small>
|}
History
It is believed that the Baltic languages are among the most conservative of the currently remaining Indo-European languages, despite their late attestation.
Although the Baltic Aesti tribe was mentioned by ancient historians such as Tacitus as early as 98 CE, the first attestation of a Baltic language was 1369, in a Basel epigram of two lines written in Old Prussian. Lithuanian was first attested in a printed book, which is a Catechism by Martynas Mažvydas published in 1547. Latvian appeared in a printed Catechism in 1585.
One reason for the late attestation is that the Baltic peoples resisted Christianization longer than any other Europeans, which delayed the introduction of writing and isolated their languages from outside influence.
With the establishment of a German state in Prussia, and the mass influx of Germanic (and to a lesser degree Slavic-speaking) settlers, the Prussians began to be assimilated, and by the end of the 17th century, the Prussian language had become extinct.
After the Partitions of Polish-Lithuanian Commonwealth, most of the Baltic lands were under the rule of the Russian Empire, where the native languages or alphabets were sometimes prohibited from being written down or used publicly in a Russification effort (see Lithuanian press ban for the ban in force from 1864 to 1904).Geographic distribution
.]]
Speakers of modern Baltic languages are generally concentrated within the borders of Lithuania and Latvia, and in emigrant communities in the United States, Canada, Australia and the countries within the former borders of the Soviet Union.
Historically the languages were spoken over a larger area: west to the mouth of the Vistula river in present-day Poland, at least as far east as the Dniepr river in present-day Belarus, perhaps even to Moscow, and perhaps as far south as Kyiv. Key evidence of Baltic language presence in these regions is found in hydronyms (names of bodies of water) that are characteristically Baltic. The use of hydronyms is generally accepted to determine the extent of a culture's influence, but not the date of such influence.
The eventual expansion of the use of Slavic languages in the south and east, and Germanic languages in the west, reduced the geographic distribution of Baltic languages to a fraction of the area that they formerly covered. The Russian geneticist Oleg Balanovsky speculated that there is a predominance of the assimilated pre-Slavic substrate in the genetics of East and West Slavic populations, according to him the common genetic structure which contrasts East Slavs and Balts from other populations may suggest that the pre-Slavic substrate of the East Slavs consists most significantly of Baltic-speakers, which predated the Slavs in the cultures of the Eurasian steppe according to archaeological references he cites.Contact with Uralic languages
Though Estonia is geopolitically included among the Baltic states due to its location, Estonian is a Finnic language of the Uralic language family and is not related to the Baltic languages, which are Indo-European.
The Mordvinic languages, spoken mainly along western tributaries of the Volga, show several dozen loanwords from one or more Baltic languages. These may have been mediated by contacts with the Eastern Balts along the river Oka. In regards to the same geographical location, Asko Parpola, in a 2013 article, suggested that the Baltic presence in this area, dated to –600 CE, is due to an "elite superstratum". However, linguist argued that the Volga-Oka is a secondary Baltic-speaking area, expanding from East Baltic, due to a large number of Baltic loanwords in Finnic and Saami.
Finnish scholars also indicate that Latvian had extensive contacts with Livonian, and, to a lesser extent, to Estonian and South Estonian. Therefore, this contact accounts for the number of Finnic hydronyms in Lithuania and Latvia that increase in a northwards direction.
Parpola, in the same article, supposed the existence of a Baltic substratum for Finnic, in Estonia and coastal Finland. In the same vein, Kallio argues for the existence of a lost "North Baltic language" that would account for loanwords during the evolution of the Finnic branch.
Comparative linguistics
Genetic relatedness
and Baltic language in general, middle of 14th c]]
The Baltic languages are of particular interest to linguists because they retain many archaic features, which are thought to have been present in the early stages of the Proto-Indo-European language. Several of the extinct Baltic languages have a limited or nonexistent written record, their existence being known only from the records of ancient historians and personal or place names. All of the languages in the Baltic group (including the living ones) were first written down relatively late in their probable existence as distinct languages. These two factors combined with others have obscured the history of the Baltic languages, leading to a number of theories regarding their position in the Indo-European family.
The Baltic languages show a close relationship with the Slavic languages, and are grouped with them in a Balto-Slavic family by most scholars. This family is considered to have developed from a common ancestor, Proto-Balto-Slavic. Later on, several lexical, phonological and morphological dialectisms developed, separating the various Balto-Slavic languages from each other. Although it is generally agreed that the Slavic languages developed from a single more-or-less unified dialect (Proto-Slavic) that split off from common Balto-Slavic, there is more disagreement about the relationship between the Baltic languages.
The traditional view is that the Balto-Slavic languages split into two branches, Baltic and Slavic, with each branch developing as a single common language (Proto-Baltic and Proto-Slavic) for some time afterwards. Proto-Baltic is then thought to have split into East Baltic and West Baltic branches. However, more recent scholarship has suggested that there was no unified Proto-Baltic stage, but that Proto-Balto-Slavic split directly into three groups: Slavic, East Baltic and West Baltic. Under this view, the Baltic family is paraphyletic, and consists of all Balto-Slavic languages that are not Slavic. In the 1960s Vladimir Toporov and Vyacheslav Ivanov made the following conclusions about the relationship between the Baltic and Slavic languages:
* the Proto-Slavic language formed out of peripheral-type Baltic dialects;
* the Slavic linguistic type formed later from the structural model of the Baltic languages;
* the Slavic structural model is a result of the transformation from the Baltic languages structural model.
These scholars' theses do not contradict the close relationship between Baltic and Slavic languages and, from a historical perspective, specify the Baltic-Slavic languages' evolution – the terms 'Baltic' and 'Slavic' are relevant only from the point of view of the present time, meaning diachronic changes, and the oldest stage of the language development could be called both Baltic and Slavic;
Finally, a minority of scholars argue that Baltic descended directly from Proto-Indo-European, without an intermediate common Balto-Slavic stage. They argue that the many similarities and shared innovations between Baltic and Slavic are caused by several millennia of contact between the groups, rather than a shared heritage.
Thracian hypothesis
The Baltic-speaking peoples likely encompassed an area in eastern Europe much larger than their modern range. As in the case of the Celtic languages of Western Europe, they were reduced by invasion, extermination and assimilation. Studies in comparative linguistics point to genetic relationship between the languages of the Baltic family and the following extinct languages:
* Dacian}}}}
* Thracian}}}}
The Baltic classification of Dacian and Thracian has been proposed by the Lithuanian scientist Jonas Basanavičius, who insisted this is the most important work of his life and listed 600 identical words of Balts and Thracians. His theory included Phrygian in the related group, but this did not find support and was disapproved among other authors, such as Ivan Duridanov, whose own analysis found Phrygian completely lacking parallels in either Thracian or Baltic languages.
The Bulgarian linguist Ivan Duridanov, who improved the most extensive list of toponyms, in his first publication claimed that Thracian is genetically linked to the Baltic languages and in the next one he made the following classification: <blockquote>"The Thracian language formed a close group with the Baltic, the Dacian and the "Pelasgian" languages. More distant were its relations with the other Indo-European languages, and especially with Greek, the Italic and Celtic languages, which exhibit only isolated phonetic similarities with Thracian; the Tokharian and the Hittite were also distant. " </blockquote>Of about 200 [http://www.lexicons.ru/old/f/thracian/index.html reconstructed Thracian words] by Duridanov most cognates (138) appear in the Baltic languages, mostly in Lithuanian, followed by Germanic (61), Indo-Aryan (41), Greek (36), Bulgarian (23), Latin (10) and Albanian (8). The cognates of the reconstructed Dacian words in his publication are found mostly in the Baltic languages, followed by Albanian. Parallels have enabled linguists, using the techniques of comparative linguistics, to decipher the meanings of several Dacian and Thracian placenames with, they claim, a high degree of probability. Of 74 Dacian placenames attested in primary sources and considered by Duridanov, a total of 62 have Baltic cognates, most of which were rated "certain" by Duridanov. For a big number of 300 Thracian geographic names most parallels were found between Thracian and Baltic geographic names in the study of Duridanov. According to him the most important impression make the geographic cognates of Baltic and Thracian <blockquote>"the similarity of these parallels stretching frequently on the main element and the suffix simultaneously, which makes a strong impression".</blockquote>
Romanian linguist Sorin Paliga, analysing and criticizing Harvey Mayer's study, did admit "great likeness" between Thracian, the substrate of Romanian, and "some Baltic forms".See also
* Historical linguistics
* Dacian–Baltic connection
References
Bibliography
*
* provides a number of articles on modern and archaic Baltic languages
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Literature
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* Further reading
;On Baltic hydronymy:
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;On Baltic-Uralic contacts:
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External links
* [https://lrc.la.utexas.edu/eieol/litol Baltic Online] by Virginija Vasiliauskiene, Lilita Zalkalns, and Jonathan Slocum, free online lessons at the [https://liberalarts.utexas.edu/lrc Linguistics Research Center] at the University of Texas at Austin
Category:Indo-European languages | https://en.wikipedia.org/wiki/Baltic_languages | 2025-04-05T18:26:44.577369 |
4214 | Bioinformatics | 500px|thumbnail|right|Early bioinformatics—computational alignment of experimentally determined sequences of a class of related proteins; see for further information.
thumbnail|220px|Map of the human X chromosome (from the National Center for Biotechnology Information (NCBI) website)
Bioinformatics () is an interdisciplinary field of science that develops methods and software tools for understanding biological data, especially when the data sets are large and complex. Bioinformatics uses biology, chemistry, physics, computer science, data science, computer programming, information engineering, mathematics and statistics to analyze and interpret biological data. The process of analyzing and interpreting data can sometimes be referred to as computational biology, however this distinction between the two terms is often disputed. To some, the term computational biology refers to building and using models of biological systems.
Computational, statistical, and computer programming techniques have been used for computer simulation analyses of biological queries. They include reused specific analysis "pipelines", particularly in the field of genomics, such as by the identification of genes and single nucleotide polymorphisms (SNPs). These pipelines are used to better understand the genetic basis of disease, unique adaptations, desirable properties (especially in agricultural species), or differences between populations. Bioinformatics also includes proteomics, which tries to understand the organizational principles within nucleic acid and protein sequences.
Image and signal processing allow extraction of useful results from large amounts of raw data. In the field of genetics, it aids in sequencing and annotating genomes and their observed mutations. Bioinformatics includes text mining of biological literature and the development of biological and gene ontologies to organize and query biological data. It also plays a role in the analysis of gene and protein expression and regulation. Bioinformatics tools aid in comparing, analyzing and interpreting genetic and genomic data and more generally in the understanding of evolutionary aspects of molecular biology. At a more integrative level, it helps analyze and catalogue the biological pathways and networks that are an important part of systems biology. In structural biology, it aids in the simulation and modeling of DNA, RNA, proteins as well as biomolecular interactions.
History
The first definition of the term bioinformatics was coined by Paulien Hogeweg and Ben Hesper in 1970, to refer to the study of information processes in biotic systems. This definition placed bioinformatics as a field parallel to biochemistry (the study of chemical processes in biological systems).
Computers became essential in molecular biology when protein sequences became available after Frederick Sanger determined the sequence of insulin in the early 1950s. Comparing multiple sequences manually turned out to be impractical. Margaret Oakley Dayhoff, a pioneer in the field, compiled one of the first protein sequence databases, initially published as books as well as methods of sequence alignment and molecular evolution. Another early contributor to bioinformatics was Elvin A. Kabat, who pioneered biological sequence analysis in 1970 with his comprehensive volumes of antibody sequences released online with Tai Te Wu between 1980 and 1991.
In the 1970s, new techniques for sequencing DNA were applied to bacteriophage MS2 and øX174, and the extended nucleotide sequences were then parsed with informational and statistical algorithms. These studies illustrated that well known features, such as the coding segments and the triplet code, are revealed in straightforward statistical analyses and were the proof of the concept that bioinformatics would be insightful.
Goals
In order to study how normal cellular activities are altered in different disease states, raw biological data must be combined to form a comprehensive picture of these activities. Therefore, the field of bioinformatics has evolved such that the most pressing task now involves the analysis and interpretation of various types of data. This also includes nucleotide and amino acid sequences, protein domains, and protein structures.
Important sub-disciplines within bioinformatics and computational biology include:
Development and implementation of computer programs to efficiently access, manage, and use various types of information.
Development of new mathematical algorithms and statistical measures to assess relationships among members of large data sets. For example, there are methods to locate a gene within a sequence, to predict protein structure and/or function, and to cluster protein sequences into families of related sequences.
The primary goal of bioinformatics is to increase the understanding of biological processes. What sets it apart from other approaches is its focus on developing and applying computationally intensive techniques to achieve this goal. Examples include: pattern recognition, data mining, machine learning algorithms, and visualization. Major research efforts in the field include sequence alignment, gene finding, genome assembly, drug design, drug discovery, protein structure alignment, protein structure prediction, prediction of gene expression and protein–protein interactions, genome-wide association studies, the modeling of evolution and cell division/mitosis.
Bioinformatics entails the creation and advancement of databases, algorithms, computational and statistical techniques, and theory to solve formal and practical problems arising from the management and analysis of biological data.
Over the past few decades, rapid developments in genomic and other molecular research technologies and developments in information technologies have combined to produce a tremendous amount of information related to molecular biology. Bioinformatics is the name given to these mathematical and computing approaches used to glean understanding of biological processes.
Common activities in bioinformatics include mapping and analyzing DNA and protein sequences, aligning DNA and protein sequences to compare them, and creating and viewing 3-D models of protein structures.
Sequence analysis
Since the bacteriophage Phage Φ-X174 was sequenced in 1977, the DNA sequences of thousands of organisms have been decoded and stored in databases. This sequence information is analyzed to determine genes that encode proteins, RNA genes, regulatory sequences, structural motifs, and repetitive sequences. A comparison of genes within a species or between different species can show similarities between protein functions, or relations between species (the use of molecular systematics to construct phylogenetic trees). With the growing amount of data, it long ago became impractical to analyze DNA sequences manually. Computer programs such as BLAST are used routinely to search sequences—as of 2008, from more than 260,000 organisms, containing over 190 billion nucleotides.
DNA sequencing
Before sequences can be analyzed, they are obtained from a data storage bank, such as GenBank. DNA sequencing is still a non-trivial problem as the raw data may be noisy or affected by weak signals. Algorithms have been developed for base calling for the various experimental approaches to DNA sequencing.
center|600px|Image: 450 pixels Sequencing analysis steps
Sequence assembly
Most DNA sequencing techniques produce short fragments of sequence that need to be assembled to obtain complete gene or genome sequences. The shotgun sequencing technique (used by The Institute for Genomic Research (TIGR) to sequence the first bacterial genome, Haemophilus influenzae) generates the sequences of many thousands of small DNA fragments (ranging from 35 to 900 nucleotides long, depending on the sequencing technology). The ends of these fragments overlap and, when aligned properly by a genome assembly program, can be used to reconstruct the complete genome. Shotgun sequencing yields sequence data quickly, but the task of assembling the fragments can be quite complicated for larger genomes. For a genome as large as the human genome, it may take many days of CPU time on large-memory, multiprocessor computers to assemble the fragments, and the resulting assembly usually contains numerous gaps that must be filled in later. Shotgun sequencing is the method of choice for virtually all genomes sequenced (rather than chain-termination or chemical degradation methods), and genome assembly algorithms are a critical area of bioinformatics research.
Genome annotation
In genomics, annotation refers to the process of marking the stop and start regions of genes and other biological features in a sequenced DNA sequence. Many genomes are too large to be annotated by hand. As the rate of sequencing exceeds the rate of genome annotation, genome annotation has become the new bottleneck in bioinformatics.
Genome annotation can be classified into three levels: the nucleotide, protein, and process levels.
Gene finding is a chief aspect of nucleotide-level annotation. For complex genomes, a combination of ab initio gene prediction and sequence comparison with expressed sequence databases and other organisms can be successful. Nucleotide-level annotation also allows the integration of genome sequence with other genetic and physical maps of the genome.
The principal aim of protein-level annotation is to assign function to the protein products of the genome. Databases of protein sequences and functional domains and motifs are used for this type of annotation. About half of the predicted proteins in a new genome sequence tend to have no obvious function.
Understanding the function of genes and their products in the context of cellular and organismal physiology is the goal of process-level annotation. An obstacle of process-level annotation has been the inconsistency of terms used by different model systems. The Gene Ontology Consortium is helping to solve this problem.
The first description of a comprehensive annotation system was published in 1995
Computational evolutionary biology
Evolutionary biology is the study of the origin and descent of species, as well as their change over time. Informatics has assisted evolutionary biologists by enabling researchers to:
trace the evolution of a large number of organisms by measuring changes in their DNA, rather than through physical taxonomy or physiological observations alone,
compare entire genomes, which permits the study of more complex evolutionary events, such as gene duplication, horizontal gene transfer, and the prediction of factors important in bacterial speciation,
build complex computational population genetics models to predict the outcome of the system over time
track and share information on an increasingly large number of species and organisms
Future work endeavours to reconstruct the now more complex tree of life.
Comparative genomics
The core of comparative genome analysis is the establishment of the correspondence between genes (orthology analysis) or other genomic features in different organisms. Intergenomic maps are made to trace the evolutionary processes responsible for the divergence of two genomes. A multitude of evolutionary events acting at various organizational levels shape genome evolution. At the lowest level, point mutations affect individual nucleotides. At a higher level, large chromosomal segments undergo duplication, lateral transfer, inversion, transposition, deletion and insertion. Entire genomes are involved in processes of hybridization, polyploidization and endosymbiosis that lead to rapid speciation. The complexity of genome evolution poses many exciting challenges to developers of mathematical models and algorithms, who have recourse to a spectrum of algorithmic, statistical and mathematical techniques, ranging from exact, heuristics, fixed parameter and approximation algorithms for problems based on parsimony models to Markov chain Monte Carlo algorithms for Bayesian analysis of problems based on probabilistic models.
Many of these studies are based on the detection of sequence homology to assign sequences to protein families.
Pan genomics
Pan genomics is a concept introduced in 2005 by Tettelin and Medini. Pan genome is the complete gene repertoire of a particular monophyletic taxonomic group. Although initially applied to closely related strains of a species, it can be applied to a larger context like genus, phylum, etc. It is divided in two parts: the Core genome, a set of genes common to all the genomes under study (often housekeeping genes vital for survival), and the Dispensable/Flexible genome: a set of genes not present in all but one or some genomes under study. A bioinformatics tool BPGA can be used to characterize the Pan Genome of bacterial species.
Genetics of disease
As of 2013, the existence of efficient high-throughput next-generation sequencing technology allows for the identification of cause many different human disorders. Simple Mendelian inheritance has been observed for over 3,000 disorders that have been identified at the Online Mendelian Inheritance in Man database, but complex diseases are more difficult. Association studies have found many individual genetic regions that individually are weakly associated with complex diseases (such as infertility, breast cancer and Alzheimer's disease), rather than a single cause. There are currently many challenges to using genes for diagnosis and treatment, such as how we don't know which genes are important, or how stable the choices an algorithm provides.
Genome-wide association studies have successfully identified thousands of common genetic variants for complex diseases and traits; however, these common variants only explain a small fraction of heritability. Rare variants may account for some of the missing heritability. Large-scale whole genome sequencing studies have rapidly sequenced millions of whole genomes, and such studies have identified hundreds of millions of rare variants. Functional annotations predict the effect or function of a genetic variant and help to prioritize rare functional variants, and incorporating these annotations can effectively boost the power of genetic association of rare variants analysis of whole genome sequencing studies. Some tools have been developed to provide all-in-one rare variant association analysis for whole-genome sequencing data, including integration of genotype data and their functional annotations, association analysis, result summary and visualization. Meta-analysis of whole genome sequencing studies provides an attractive solution to the problem of collecting large sample sizes for discovering rare variants associated with complex phenotypes.
Analysis of mutations in cancer
In cancer, the genomes of affected cells are rearranged in complex or unpredictable ways. In addition to single-nucleotide polymorphism arrays identifying point mutations that cause cancer, oligonucleotide microarrays can be used to identify chromosomal gains and losses (called comparative genomic hybridization). These detection methods generate terabytes of data per experiment. The data is often found to contain considerable variability, or noise, and thus Hidden Markov model and change-point analysis methods are being developed to infer real copy number changes.
Two important principles can be used to identify cancer by mutations in the exome. First, cancer is a disease of accumulated somatic mutations in genes. Second, cancer contains driver mutations which need to be distinguished from passengers.
Further improvements in bioinformatics could allow for classifying types of cancer by analysis of cancer driven mutations in the genome. Furthermore, tracking of patients while the disease progresses may be possible in the future with the sequence of cancer samples. Another type of data that requires novel informatics development is the analysis of lesions found to be recurrent among many tumors.
Gene and protein expression
Analysis of gene expression
The expression of many genes can be determined by measuring mRNA levels with multiple techniques including microarrays, expressed cDNA sequence tag (EST) sequencing, serial analysis of gene expression (SAGE) tag sequencing, massively parallel signature sequencing (MPSS), RNA-Seq, also known as "Whole Transcriptome Shotgun Sequencing" (WTSS), or various applications of multiplexed in-situ hybridization. All of these techniques are extremely noise-prone and/or subject to bias in the biological measurement, and a major research area in computational biology involves developing statistical tools to separate signal from noise in high-throughput gene expression studies. Such studies are often used to determine the genes implicated in a disorder: one might compare microarray data from cancerous epithelial cells to data from non-cancerous cells to determine the transcripts that are up-regulated and down-regulated in a particular population of cancer cells.
thumb|center|400px|MIcroarray vs RNA-Seq
Analysis of protein expression
Protein microarrays and high throughput (HT) mass spectrometry (MS) can provide a snapshot of the proteins present in a biological sample. The former approach faces similar problems as with microarrays targeted at mRNA, the latter involves the problem of matching large amounts of mass data against predicted masses from protein sequence databases, and the complicated statistical analysis of samples when multiple incomplete peptides from each protein are detected. Cellular protein localization in a tissue context can be achieved through affinity proteomics displayed as spatial data based on immunohistochemistry and tissue microarrays.
Analysis of regulation
Gene regulation is a complex process where a signal, such as an extracellular signal such as a hormone, eventually leads to an increase or decrease in the activity of one or more proteins. Bioinformatics techniques have been applied to explore various steps in this process.
For example, gene expression can be regulated by nearby elements in the genome. Promoter analysis involves the identification and study of sequence motifs in the DNA surrounding the protein-coding region of a gene. These motifs influence the extent to which that region is transcribed into mRNA. Enhancer elements far away from the promoter can also regulate gene expression, through three-dimensional looping interactions. These interactions can be determined by bioinformatic analysis of chromosome conformation capture experiments.
Expression data can be used to infer gene regulation: one might compare microarray data from a wide variety of states of an organism to form hypotheses about the genes involved in each state. In a single-cell organism, one might compare stages of the cell cycle, along with various stress conditions (heat shock, starvation, etc.). Clustering algorithms can be then applied to expression data to determine which genes are co-expressed. For example, the upstream regions (promoters) of co-expressed genes can be searched for over-represented regulatory elements. Examples of clustering algorithms applied in gene clustering are k-means clustering, self-organizing maps (SOMs), hierarchical clustering, and consensus clustering methods.
Analysis of cellular organization
Several approaches have been developed to analyze the location of organelles, genes, proteins, and other components within cells. A gene ontology category, cellular component, has been devised to capture subcellular localization in many biological databases.
Microscopy and image analysis
Microscopic pictures allow for the location of organelles as well as molecules, which may be the source of abnormalities in diseases.
Protein localization
Finding the location of proteins allows us to predict what they do. This is called protein function prediction. For instance, if a protein is found in the nucleus it may be involved in gene regulation or splicing. By contrast, if a protein is found in mitochondria, it may be involved in respiration or other metabolic processes. There are well developed protein subcellular localization prediction resources available, including protein subcellular location databases, and prediction tools.
Nuclear organization of chromatin
Data from high-throughput chromosome conformation capture experiments, such as Hi-C (experiment) and ChIA-PET, can provide information on the three-dimensional structure and nuclear organization of chromatin. Bioinformatic challenges in this field include partitioning the genome into domains, such as Topologically Associating Domains (TADs), that are organised together in three-dimensional space.
Structural bioinformatics
thumbnail|left|3-dimensional protein structures such as this one are common subjects in bioinformatic analyses.
Finding the structure of proteins is an important application of bioinformatics. The Critical Assessment of Protein Structure Prediction (CASP) is an open competition where worldwide research groups submit protein models for evaluating unknown protein models.
Amino acid sequence
The linear amino acid sequence of a protein is called the primary structure. The primary structure can be easily determined from the sequence of codons on the DNA gene that codes for it. In most proteins, the primary structure uniquely determines the 3-dimensional structure of a protein in its native environment. An exception is the misfolded protein involved in bovine spongiform encephalopathy. This structure is linked to the function of the protein. Additional structural information includes the secondary, tertiary and quaternary structure. A viable general solution to the prediction of the function of a protein remains an open problem. Most efforts have so far been directed towards heuristics that work most of the time.
Homology
In the genomic branch of bioinformatics, homology is used to predict the function of a gene: if the sequence of gene A, whose function is known, is homologous to the sequence of gene B, whose function is unknown, one could infer that B may share A's function. In structural bioinformatics, homology is used to determine which parts of a protein are important in structure formation and interaction with other proteins. Homology modeling is used to predict the structure of an unknown protein from existing homologous proteins.
One example of this is hemoglobin in humans and the hemoglobin in legumes (leghemoglobin), which are distant relatives from the same protein superfamily. Both serve the same purpose of transporting oxygen in the organism. Although both of these proteins have completely different amino acid sequences, their protein structures are virtually identical, which reflects their near identical purposes and shared ancestor.
Other techniques for predicting protein structure include protein threading and de novo (from scratch) physics-based modeling.
Another aspect of structural bioinformatics include the use of protein structures for Virtual Screening models such as Quantitative Structure-Activity Relationship models and proteochemometric models (PCM). Furthermore, a protein's crystal structure can be used in simulation of for example ligand-binding studies and in silico mutagenesis studies.
A 2021 deep-learning algorithms-based software called AlphaFold, developed by Google's DeepMind, greatly outperforms all other prediction software methods, and has released predicted structures for hundreds of millions of proteins in the AlphaFold protein structure database.
Network and systems biology
Network analysis seeks to understand the relationships within biological networks such as metabolic or protein–protein interaction networks. Although biological networks can be constructed from a single type of molecule or entity (such as genes), network biology often attempts to integrate many different data types, such as proteins, small molecules, gene expression data, and others, which are all connected physically, functionally, or both.
Systems biology involves the use of computer simulations of cellular subsystems (such as the networks of metabolites and enzymes that comprise metabolism, signal transduction pathways and gene regulatory networks) to both analyze and visualize the complex connections of these cellular processes. Artificial life or virtual evolution attempts to understand evolutionary processes via the computer simulation of simple (artificial) life forms.
Molecular interaction networks
200px|thumbnail|right|Interactions between proteins are frequently visualized and analyzed using networks. This network is made up of protein–protein interactions from Treponema pallidum, the causative agent of syphilis and other diseases.
Tens of thousands of three-dimensional protein structures have been determined by X-ray crystallography and protein nuclear magnetic resonance spectroscopy (protein NMR) and a central question in structural bioinformatics is whether it is practical to predict possible protein–protein interactions only based on these 3D shapes, without performing protein–protein interaction experiments. A variety of methods have been developed to tackle the protein–protein docking problem, though it seems that there is still much work to be done in this field.
Other interactions encountered in the field include Protein–ligand (including drug) and protein–peptide. Molecular dynamic simulation of movement of atoms about rotatable bonds is the fundamental principle behind computational algorithms, termed docking algorithms, for studying molecular interactions.
Biodiversity informatics
Biodiversity informatics deals with the collection and analysis of biodiversity data, such as taxonomic databases, or microbiome data. Examples of such analyses include phylogenetics, niche modelling, species richness mapping, DNA barcoding, or species identification tools. A growing area is also macro-ecology, i.e. the study of how biodiversity is connected to ecology and human impact, such as climate change.
Others
Literature analysis
The enormous number of published literature makes it virtually impossible for individuals to read every paper, resulting in disjointed sub-fields of research. Literature analysis aims to employ computational and statistical linguistics to mine this growing library of text resources. For example:
Abbreviation recognition – identify the long-form and abbreviation of biological terms
Named-entity recognition – recognizing biological terms such as gene names
Protein–protein interaction – identify which proteins interact with which proteins from text
The area of research draws from statistics and computational linguistics.
High-throughput image analysis
Computational technologies are used to automate the processing, quantification and analysis of large amounts of high-information-content biomedical imagery. Modern image analysis systems can improve an observer's accuracy, objectivity, or speed. Image analysis is important for both diagnostics and research. Some examples are:
high-throughput and high-fidelity quantification and sub-cellular localization (high-content screening, cytohistopathology, Bioimage informatics)
morphometrics
clinical image analysis and visualization
determining the real-time air-flow patterns in breathing lungs of living animals
quantifying occlusion size in real-time imagery from the development of and recovery during arterial injury
making behavioral observations from extended video recordings of laboratory animals
infrared measurements for metabolic activity determination
inferring clone overlaps in DNA mapping, e.g. the Sulston score
High-throughput single cell data analysis
Computational techniques are used to analyse high-throughput, low-measurement single cell data, such as that obtained from flow cytometry. These methods typically involve finding populations of cells that are relevant to a particular disease state or experimental condition.
Ontologies and data integration
Biological ontologies are directed acyclic graphs of controlled vocabularies. They create categories for biological concepts and descriptions so they can be easily analyzed with computers. When categorised in this way, it is possible to gain added value from holistic and integrated analysis.
The OBO Foundry was an effort to standardise certain ontologies. One of the most widespread is the Gene ontology which describes gene function. There are also ontologies which describe phenotypes.
Databases
Databases are essential for bioinformatics research and applications. Databases exist for many different information types, including DNA and protein sequences, molecular structures, phenotypes and biodiversity. Databases can contain both empirical data (obtained directly from experiments) and predicted data (obtained from analysis of existing data). They may be specific to a particular organism, pathway or molecule of interest. Alternatively, they can incorporate data compiled from multiple other databases. Databases can have different formats, access mechanisms, and be public or private.
Some of the most commonly used databases are listed below:
Used in biological sequence analysis: Genbank, UniProt
Used in structure analysis: Protein Data Bank (PDB)
Used in finding Protein Families and Motif Finding: InterPro, Pfam
Used for Next Generation Sequencing: Sequence Read Archive
Used in Network Analysis: Metabolic Pathway Databases (KEGG, BioCyc), Interaction Analysis Databases, Functional Networks
Used in design of synthetic genetic circuits: GenoCAD
Software and tools
Software tools for bioinformatics include simple command-line tools, more complex graphical programs, and standalone web-services. They are made by bioinformatics companies or by public institutions.
Open-source bioinformatics software
Many free and open-source software tools have existed and continued to grow since the 1980s. The combination of a continued need for new algorithms for the analysis of emerging types of biological readouts, the potential for innovative in silico experiments, and freely available open code bases have created opportunities for research groups to contribute to both bioinformatics regardless of funding. The open source tools often act as incubators of ideas, or community-supported plug-ins in commercial applications. They may also provide de facto standards and shared object models for assisting with the challenge of bioinformation integration.
Open-source bioinformatics software includes Bioconductor, BioPerl, Biopython, BioJava, BioJS, BioRuby, Bioclipse, EMBOSS, .NET Bio, Orange with its bioinformatics add-on, Apache Taverna, UGENE and GenoCAD.
The non-profit Open Bioinformatics Foundation
Web services in bioinformatics
SOAP- and REST-based interfaces have been developed to allow client computers to use algorithms, data and computing resources from servers in other parts of the world. The main advantage are that end users do not have to deal with software and database maintenance overheads.
Basic bioinformatics services are classified by the EBI into three categories: SSS (Sequence Search Services), MSA (Multiple Sequence Alignment), and BSA (Biological Sequence Analysis). The availability of these service-oriented bioinformatics resources demonstrate the applicability of web-based bioinformatics solutions, and range from a collection of standalone tools with a common data format under a single web-based interface, to integrative, distributed and extensible bioinformatics workflow management systems.
Bioinformatics workflow management systems
A bioinformatics workflow management system is a specialized form of a workflow management system designed specifically to compose and execute a series of computational or data manipulation steps, or a workflow, in a Bioinformatics application. Such systems are designed to
provide an easy-to-use environment for individual application scientists themselves to create their own workflows,
provide interactive tools for the scientists enabling them to execute their workflows and view their results in real-time,
simplify the process of sharing and reusing workflows between the scientists, and
enable scientists to track the provenance of the workflow execution results and the workflow creation steps.
Some of the platforms giving this service: Galaxy, Kepler, Taverna, UGENE, Anduril, HIVE.
BioCompute and BioCompute Objects
In 2014, the US Food and Drug Administration sponsored a conference held at the National Institutes of Health Bethesda Campus to discuss reproducibility in bioinformatics. Over the next three years, a consortium of stakeholders met regularly to discuss what would become BioCompute paradigm. These stakeholders included representatives from government, industry, and academic entities. Session leaders represented numerous branches of the FDA and NIH Institutes and Centers, non-profit entities including the Human Variome Project and the European Federation for Medical Informatics, and research institutions including Stanford, the New York Genome Center, and the George Washington University.
It was decided that the BioCompute paradigm would be in the form of digital 'lab notebooks' which allow for the reproducibility, replication, review, and reuse, of bioinformatics protocols. This was proposed to enable greater continuity within a research group over the course of normal personnel flux while furthering the exchange of ideas between groups. The US FDA funded this work so that information on pipelines would be more transparent and accessible to their regulatory staff.
In 2016, the group reconvened at the NIH in Bethesda and discussed the potential for a BioCompute Object, an instance of the BioCompute paradigm. This work was copied as both a "standard trial use" document and a preprint paper uploaded to bioRxiv. The BioCompute object allows for the JSON-ized record to be shared among employees, collaborators, and regulators.
Education platforms
Bioinformatics is not only taught as in-person master's degree at many universities. The computational nature of bioinformatics lends it to computer-aided and online learning. Software platforms designed to teach bioinformatics concepts and methods include Rosalind and online courses offered through the Swiss Institute of Bioinformatics Training Portal. The Canadian Bioinformatics Workshops provides videos and slides from training workshops on their website under a Creative Commons license. The 4273π project or 4273pi project also offers open source educational materials for free. The course runs on low cost Raspberry Pi computers and has been used to teach adults and school pupils. 4273 is actively developed by a consortium of academics and research staff who have run research level bioinformatics using Raspberry Pi computers and the 4273π operating system.
MOOC platforms also provide online certifications in bioinformatics and related disciplines, including Coursera's Bioinformatics Specialization at the University of California, San Diego, Genomic Data Science Specialization at Johns Hopkins University, and EdX's Data Analysis for Life Sciences XSeries at Harvard University.
Conferences
There are several large conferences that are concerned with bioinformatics. Some of the most notable examples are Intelligent Systems for Molecular Biology (ISMB), European Conference on Computational Biology (ECCB), and Research in Computational Molecular Biology (RECOMB).
See also
References
Further reading
Sehgal et al. : Structural, phylogenetic and docking studies of D-amino acid oxidase activator(DAOA ), a candidate schizophrenia gene. Theoretical Biology and Medical Modelling 2013 10 :3.
Achuthsankar S Nair Computational Biology & Bioinformatics – A gentle Overview , Communications of Computer Society of India, January 2007
Aluru, Srinivas, ed. Handbook of Computational Molecular Biology. Chapman & Hall/Crc, 2006. (Chapman & Hall/Crc Computer and Information Science Series)
Baldi, P and Brunak, S, Bioinformatics: The Machine Learning Approach, 2nd edition. MIT Press, 2001.
Barnes, M.R. and Gray, I.C., eds., Bioinformatics for Geneticists, first edition. Wiley, 2003.
Baxevanis, A.D. and Ouellette, B.F.F., eds., Bioinformatics: A Practical Guide to the Analysis of Genes and Proteins, third edition. Wiley, 2005.
Baxevanis, A.D., Petsko, G.A., Stein, L.D., and Stormo, G.D., eds., Current Protocols in Bioinformatics. Wiley, 2007.
Cristianini, N. and Hahn, M. Introduction to Computational Genomics , Cambridge University Press, 2006. ( |)
Durbin, R., S. Eddy, A. Krogh and G. Mitchison, Biological sequence analysis. Cambridge University Press, 1998.
Keedwell, E., Intelligent Bioinformatics: The Application of Artificial Intelligence Techniques to Bioinformatics Problems. Wiley, 2005.
Kohane, et al. Microarrays for an Integrative Genomics. The MIT Press, 2002.
Lund, O. et al. Immunological Bioinformatics. The MIT Press, 2005.
Pachter, Lior and Sturmfels, Bernd. "Algebraic Statistics for Computational Biology" Cambridge University Press, 2005.
Pevzner, Pavel A. Computational Molecular Biology: An Algorithmic Approach The MIT Press, 2000.
Soinov, L. Bioinformatics and Pattern Recognition Come Together Journal of Pattern Recognition Research (JPRR ), Vol 1 (1) 2006 p. 37–41
Stevens, Hallam, Life Out of Sequence: A Data-Driven History of Bioinformatics, Chicago: The University of Chicago Press, 2013,
Tisdall, James. "Beginning Perl for Bioinformatics" O'Reilly, 2001.
Catalyzing Inquiry at the Interface of Computing and Biology (2005) CSTB report
Calculating the Secrets of Life: Contributions of the Mathematical Sciences and computing to Molecular Biology (1995)
Foundations of Computational and Systems Biology MIT Course
Computational Biology: Genomes, Networks, Evolution Free MIT Course
External links
Bioinformatics Resource Portal (SIB) | https://en.wikipedia.org/wiki/Bioinformatics | 2025-04-05T18:26:44.784873 |
4216 | Brian De Palma | | birth_date =
| birth_place = Newark, New Jersey, U.S.
| birth_name = Brian Russell De Palma
| years_active = 1960–present
| occupation =
| spouse =
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Brian Russell De Palma (; born September 11, 1940) is an American film director and screenwriter. With a career spanning over 50 years, he is best known for work in the suspense, crime and psychological thriller genres. De Palma was a leading member of the New Hollywood generation.
Carrie (1976), his adaptation of Stephen King's novel of the same name, put him on the map. He enjoyed commercial success with Dressed to Kill (1980), The Untouchables (1987) and Mission: Impossible (1996) and made cult classics such as Greetings (1968), Hi, Mom! (1970), Sisters (1972), Phantom of the Paradise (1974), and The Fury (1978).
As a young director, De Palma dreamed of being the "American Godard". His style is allusive; he paid homage to Alfred Hitchcock in Obsession (1976) and Body Double (1984); Blow Out (1981) is based on Michelangelo Antonioni's Blowup (1966) and Scarface (1983), his remake of Howard Hawks's 1932 film, is dedicated to Hawks and Ben Hecht. His work has been criticized for its violence and sexual content but has also been championed by American critics such as Roger Ebert and Pauline Kael.
Early life and education
De Palma was born on September 11, 1940, in Newark, New Jersey, the youngest of three boys. His Italian-American parents were Vivienne DePalma (née Muti), and Anthony F. DePalma, an orthopedic surgeon who was the son of immigrants from Alberona, Province of Foggia. He was raised in Philadelphia, Pennsylvania and New Hampshire, and attended various Protestant and Quaker schools, eventually graduating from Friends' Central School. He had a poor relationship with his father, and would secretly follow him to record his adulterous behavior; this would eventually inspire the teenage character in De Palma's Dressed to Kill (1980). When he was in high school, he built computers. He won a regional science-fair prize for his project "An Analog Computer to Solve Differential Equations".
Enrolled at Columbia University as a physics student, De Palma became enraptured with filmmaking after seeing Orson Welles's Citizen Kane (1941) and Alfred Hitchcock's Vertigo (1958). After receiving his undergraduate degree in 1962, De Palma enrolled at the newly mixed-gender Sarah Lawrence College as a graduate student in their theater department, earning an M.A. in the discipline in 1964 and becoming one of the first male students in a predominantly female school. Once there, influences as various as drama teacher Wilford Leach, the Maysles brothers, Michelangelo Antonioni, Andy Warhol and Jean-Luc Godard, impressed upon De Palma the many styles and themes that would shape his work in the coming decades.
Career
1963–1976: Rise to prominence
An early association with a young Robert De Niro resulted in The Wedding Party. The film, co-directed with Wilford Leach and producer Cynthia Munroe, had been shot in 1963 but remained unreleased until 1969, when De Palma's star had risen sufficiently in the Greenwich Village filmmaking scene. De Niro was unknown at the time; the credits mistakenly display his name as "Robert ". The film is noteworthy for its invocation of silent film techniques and use of the jump-cut. De Palma followed this style with various small films for the NAACP and the Treasury Department.
During the 1960s, De Palma began making a living producing documentaries, notably The Responsive Eye (1966), about The Responsive Eye op-art exhibit curated by William Seitz for MoMA in 1965. In an interview with Joseph Gelmis from 1969, De Palma described the film as "very good and very successful. It's distributed by Pathe Contemporary and makes lots of money. I shot it in four hours, with synched sound. I had two other guys shooting people's reactions to the paintings, and the paintings themselves."
''Dionysus in '69'' (1969) was De Palma's other major documentary from this period. The film records the Performance Group's performance of Euripides's The Bacchae, starring, amongst others, De Palma regular William Finley. The play is noted for breaking traditional barriers between performers and audience. The film's most striking quality is its extensive use of the split-screen. De Palma recalls that he was "floored" by this performance upon first sight, and in 1973 recounts how he "began to try and figure out a way to capture it on film. I came up with the idea of split-screen, to be able to show the actual audience involvement, to trace the life of the audience and that of the play as they merge in and out of each other."
De Palma's most significant features from this decade are Greetings (1968) and Hi, Mom! (1970). Both films star De Niro and espouse a leftist revolutionary viewpoint in the spirit of the time. Greetings was entered into the 19th Berlin International Film Festival, where it won a Silver Bear award. His other major film from this period is the slasher comedy Murder a la Mod (1968). Each of these films experiments with narrative and intertextuality, reflecting De Palma's stated intention to become the "American Godard".
In 1970, De Palma left New York for Hollywood at age thirty to make Get to Know Your Rabbit (1972), starring Orson Welles and Tommy Smothers. Making the film was a crushing experience for De Palma, as Smothers did not like many of De Palma's ideas. Here he made several small, studio and independently released films. Among them were the horror film Sisters (1972), the rock musical Phantom of the Paradise (1974) and Obsession (1976), a variation on theme of Alfred Hitchcock's Vertigo (1958) scored by Hitchcock's frequent collaborator Bernard Herrmann. 1976–1979: Breakthrough In November 1976, De Palma released an adaptation of Stephen King's novel Carrie. Though some see the psychic thriller as De Palma's bid for a blockbuster, the project was in fact small, underfunded by United Artists, and well under the cultural radar during the early months of production, as King's novel was not yet a bestseller. De Palma gravitated toward the project and changed crucial plot elements based upon his own predilections. The cast was mostly young and relatively new, though Sissy Spacek and John Travolta had gained attention for previous work in, respectively, film and sitcoms. Carrie became De Palma's first genuine box-office success, garnering Spacek and Piper Laurie Oscar nominations for their performances. Pre-production for the film had coincided with the casting process for George Lucas's Star Wars, and many of the actors cast in De Palma's film had been earmarked as contenders for Lucas's movie, and vice versa. Its suspense sequences are buttressed by teen comedy tropes, and its use of split-screen, split-diopter and slow motion shots tell the story visually rather than through dialogue. As for Lucas's project, De Palma complained in an early viewing of Star Wars that the opening text crawl was poorly written and volunteered to help edit the text to a more concise and engaging form.
The financial and critical success of Carrie allowed De Palma to pursue more personal material. Alfred Bester's novel The Demolished Man had fascinated De Palma since the late 1950s and appealed to his background in mathematics and avant-garde storytelling. Its unconventional unfolding of plot (exemplified in its mathematical layout of dialogue) and its stress on perception have analogs in De Palma's filmmaking. He sought to adapt it numerous times, though the project would carry a substantial price tag, and has yet to appear on-screen (Steven Spielberg's 2002 adaptation of Philip K. Dick's Minority Report bears striking similarities to De Palma's visual style and some of the themes of The Demolished Man). The result of his experience with adapting The Demolished Man was the 1978 science fiction psychic thriller The Fury, starring Kirk Douglas, Carrie Snodgress, John Cassavetes and Amy Irving. The film was admired by Jean-Luc Godard, who featured a clip in his mammoth Histoire(s) du cinéma, and Pauline Kael, who championed both The Fury and De Palma. The film boasted a larger budget than Carrie, though the consensus view at the time was that De Palma was repeating himself, with diminishing returns.
, De Palma and Nancy Allen promoting Blow Out]]
1980–1996: Established career
The 1980s were marked by some of De Palma's best known films, including the erotic thriller Dressed to Kill (1980) starring Michael Caine and Angie Dickinson. Although the film received critical acclaim, it caused controversy for its negative depiction of the transgender community. The following year he directed Blow Out (1981), a variation on Michelangelo Antonioni's Blow-Up (1966) and Francis Ford Coppola's The Conversation (1974) starring John Travolta, Nancy Allen and John Lithgow. The film received critical acclaim. Kael wrote: "De Palma has sprung to the place that Robert Altman achieved with films such as McCabe & Mrs. Miller and Nashville and that Francis Ford Coppola reached with The Godfather films—that is, to the place where genre is transcended and what we're moved by is an artist's vision. It's a great movie."
De Palma directed Scarface (1983), a remake of Howard Hawks's 1932 film, starring Al Pacino and Michelle Pfeiffer with a screenplay by Oliver Stone. The film received mixed reviews with its negative depictions of ethnic stereotypes, as well as its violence and profanity. It has since been re-evaluated and is now considered a cult classic. The following year he made another erotic thriller, Body Double (1984), starring Craig Wasson and Melanie Griffith. The film also received mixed reviews but has since had a reassessment and found acclaim. De Palma directed the music video for Bruce Springsteen's single "Dancing in the Dark" the same year.
]]
In 1987, De Palma directed the crime film The Untouchables, loosely based on the book of the same name and adapted by David Mamet. The film stars Kevin Costner, Andy Garcia, Robert De Niro and Sean Connery, the last of whom won the Academy Award for Best Supporting Actor for the film. It received critical acclaim and box-office success. De Palma's Vietnam War film Casualties of War (1989) won critical praise but performed poorly in theatres and The Bonfire of the Vanities (1990) was a notorious failure with both critics and audiences. De Palma then had subsequent successes with Raising Cain (1992) and ''Carlito's Way (1993). Mission: Impossible (1996) was his highest-grossing film and started a successful franchise.'' 1998–present: Career slump De Palma's work after Mission: Impossible has been less well received. His ensuing films Snake Eyes (1998), Mission to Mars (2000), and Femme Fatale (2002) all failed at the box office and received generally poor reviews, though Femme Fatale has since been revived in the eyes of many film critics and became a cult classic. His 2006 adaptation of The Black Dahlia was also unsuccessful and is currently the last movie De Palma has directed with backing from Hollywood.
A political controversy erupted over the portrayal of US soldiers in De Palma's 2007 film Redacted. Loosely based on the 2006 Mahmudiyah killings by American soldiers in Iraq, the film echoes themes that appeared in Casualties of War. Redacted received a limited release in the United States and grossed less than $1 million against a $5 million budget.
De Palma's output has slowed since the release of Redacted, with subsequent projects often falling into development hell, due mostly to creative differences. In 2012, his film Passion starring Rachel McAdams and Noomi Rapace was selected to compete for the Golden Lion at the 69th Venice International Film Festival but received mixed reviews and was financially unsuccessful.
De Palma's next project was the thriller Domino (2019), released two years after the film began production. It received generally negative reviews and was released direct-to-VOD in the United States, grossing less than half a million dollars internationally. De Palma has also expressed dissatisfaction with both the production of the film and the final result; "I never experienced such a horrible movie set."
In 2018, De Palma published his debut novel in France, Les serpents sont-ils nécessaires? (English translation: Are Snakes Necessary?), co-written with Susan Lehman. It was published in the U.S. in 2020. De Palma and Lehman also wrote a second book, currently unpublished, called Terry, based on one of De Palma's passion projects about a French film production making an adaptation of Thérèse Raquin.
Despite rumors of his supposed retirement after having two projects, Sweet Vengeance and Catch and Kill, fall through, De Palma revealed to Vulture in September 2024 that he had "one other" undisclosed film he was planning to make, and that he was in the process of trying to cast it.Filmmaking style, techniques and trademarksDe Palma's films can fall into two categories, his thriller films (Sisters, Body Double, Obsession, Dressed to Kill, Blow Out, Raising Cain) and his mainly commercial films ( The Untouchables, ''Carlito's Way, and Mission: Impossible''). He has often produced "De Palma" films one after the other before going on to direct a different genre, but would always return to his familiar territory. Because of the subject matter and graphic violence of some of De Palma's films, such as Dressed to Kill, Scarface and Body Double, they are often at the center of controversy with the Motion Picture Association of America, film critics and the viewing public. He resides in Manhattan, New York.Reception and legacyDe Palma is often cited as a leading member of the New Hollywood generation of film directors, a distinct pedigree who either emerged from film schools or are overtly cine-literate. Psychologists have been intrigued by De Palma's fascination with pathology, by the aberrant behavior aroused in characters who find themselves manipulated by others.
De Palma has encouraged and fostered the filmmaking careers of directors such as Mark Romanek and Keith Gordon, the latter of whom collaborated with him twice as an actor, both in 1979's Home Movies and 1980's Dressed to Kill. Filmmakers influenced by De Palma include Terrence Malick, Quentin Tarantino, Ronny Yu, Don Mancini, Nacho Vigalondo, and Jack Thomas Smith. During an interview with De Palma, Quentin Tarantino said that Blow Out is one of his all-time favorite films, and that after watching Scarface he knew how to make his own film. John Travolta's performance as Jack Terry in Blow Out even resulted in Tarantino casting him as Vincent Vega in his 1994 film Pulp Fiction, which would go on to reinvigorate Travolta's then-declining career. Tarantino also placed Carrie at number eight in a list of his favorite films.
Critics who frequently admire De Palma's work include Pauline Kael and Roger Ebert. Kael wrote in her review of Blow Out, "At forty, Brian De Palma has more than twenty years of moviemaking behind him, and he has been growing better and better. Each time a new film of his opens, everything he has done before seems to have been preparation for it." In his review of Femme Fatale, Roger Ebert wrote about the director: "De Palma deserves more honor as a director. Consider also these titles: Sisters, Blow Out, The Fury, Dressed to Kill, Carrie, Scarface, Wise Guys, Casualties of War, ''Carlito's Way, Mission: Impossible. Yes, there are a few failures along the way (Snake Eyes, Mission to Mars, The Bonfire of the Vanities''), but look at the range here, and reflect that these movies contain treasure for those who admire the craft as well as the story, who sense the glee with which De Palma manipulates images and characters for the simple joy of being good at it. It's not just that he sometimes works in the style of Hitchcock, but that he has the nerve to."
The influential French film magazine Cahiers du Cinéma has placed five of De Palma's films (''Carlito's Way, Mission: Impossible, Snake Eyes, Mission to Mars, and Redacted) on their annual top ten list, with Redacted placing first on the 2008 list. The magazine also listed Carlito's Way'' as the greatest film of the 1990s.
Julie Salamon has written that critics have accused De Palma of being "a perverse misogynist",
His films have also been interpreted as feminist and examined for their perceived queer affinities. In Film Comment "Queer and Now and Then" column on Femme Fatale, film critic Michael Koresky writes that "De Palma's films radiate an undeniable queer energy" and notes the "intense appeal" De Palma's films have for gay critics. In her book The Erotic Thriller in Contemporary Cinema, Linda Ruth Williams writes that "De Palma understood the cinematic potency of dangerous fucking, perhaps earlier than his feminist detractors".
Robin Wood considered Sisters an overtly feminist film, writing that "one can define the monster of Sisters as women's liberation; adding only that the film follows the time-honored horror film tradition of making the monster emerge as the most sympathetic character and its emotional center." Pauline Kael's review of Casualties of War, "A Wounded Apparition", describes the film as "feminist" and notes that "De Palma was always involved in examining (and sometimes satirizing) victimization, but he was often accused of being a victimizer". Helen Grace, in a piece for Lola, writes that upon seeing Dressed to Kill amidst calls for a boycott from feminist groups Women Against Violence Against Women and Women Against Pornography, that the film "seemed to say more about masculine anxiety than about the fears that women were expressing in relation to the film". De Palma has also expressed contrition for the depiction of a transgender murderer in the film, saying in a 2016 interview "I don't know what the transgender community would think [of the film now]... Obviously I realize that it's not good for their image to be transgender and also be a psychopathic murderer. But I think that [perception] passes with time. We're in a different time." In the same interview, he said he was "glad" that the film had become a "a favorite of the gay community".
David Thomson wrote in his entry for De Palma, "There is a self-conscious cunning in De Palma's work, ready to control everything except his own cruelty and indifference." Matt Zoller Seitz objected to this characterisation, writing that there are films from the director which can be seen as "straightforwardly empathetic and/or moralistic".
His life and career in his own words was the subject of the 2015 documentary De Palma, directed by Noah Baumbach and Jake Paltrow.
Filmography
{| class="wikitable"
|+Directed features
!scope="col"| Year
!scope="col"| Title
!scope="col"| Distribution
|-
|rowspan=2| 1968
|scope="row"| Murder a la Mod
| Aries Documentaries
|-
|scope="row"| Greetings
| Sigma III
|-
| 1969
|scope="row"| The Wedding Party
| Ajay Film Company
|-
| 1970
|scope="row"| Hi, Mom!
| Sigma III
|-
|rowspan=2| 1972
|scope="row"| Get to Know Your Rabbit
| Warner Bros.
|-
|scope="row"| Sisters
| American International Pictures
|-
| 1974
|scope="row"| Phantom of the Paradise
| 20th Century Fox
|-
|rowspan=2| 1976
|scope="row"| Obsession
| Columbia Pictures
|-
|scope="row"| Carrie
| United Artists
|-
| 1978
|scope="row"| The Fury
| 20th Century Fox
|-
| 1979
|scope="row"| Home Movies
| United Artists
|-
| 1980
|scope="row"| Dressed to Kill
|rowspan=2|Filmways Pictures
|-
| 1981
|scope="row"| Blow Out
|-
| 1983
|scope="row"| Scarface
| Universal Pictures
|-
| 1984
|scope="row"| Body Double
| Columbia Pictures
|-
| 1986
|scope="row"| Wise Guys
| Metro-Goldwyn-Mayer
|-
| 1987
|scope="row"| The Untouchables
| Paramount Pictures
|-
| 1989
|scope="row"| Casualties of War
| Columbia Pictures
|-
| 1990
|scope="row"| The Bonfire of the Vanities
| Warner Bros.
|-
| 1992
|scope="row"| Raising Cain
|rowspan=2|Universal Pictures
|-
| 1993
|scope="row"| ''Carlito's Way
|-
| 1996
|scope="row"| Mission: Impossible
|Paramount Pictures
|-
| 1998
|scope="row"| Snake Eyes
|Paramount Pictures<br>Buena Vista International
|-
| 2000
|scope="row"| Mission to Mars
| Buena Vista Pictures Distribution
|-
| 2002
|scope="row"| Femme Fatale
| Warner Bros.
|-
| 2006
|scope="row"| The Black Dahlia
| Universal Pictures
|-
| 2007
|scope="row"| Redacted
| Magnolia Pictures
|-
| 2012
|scope="row"| Passion
| Entertainment One
|-
| 2019
|scope="row"| Domino
| Signature Entertainment
|-
|}
Awards and nominations
{| class="wikitable"
|-
! rowspan="2" | Year
! rowspan="2" | Title
! colspan"2" style"text-align:center;" width=160| Academy Awards
! colspan"2" style"text-align:center;" width=160| BAFTA Awards
! colspan"2" style"text-align:center;" width=160| Golden Globe Awards
|-
! Nominations
! Wins
! Nominations
! Wins
! Nominations
! Wins
|-
| 1974
| Phantom of the Paradise
|align=center|1
|
|
|
|align=center|1
|
|-
|rowspan=2| 1976
| Obsession
|align=center|1
|
|
|
|
|
|-
| Carrie
|align=center|2
|
|
|
|align=center|1
|
|-
| 1980
| Dressed to Kill
|
|
|
|
|align=center|1
|
|-
| 1983
| Scarface
|
|
|
|
|align=center|3
|
|-
| 1984
| Body Double
|
|
|
|
|align=center|1
|
|-
| 1987
| The Untouchables
|align=center|4
|align=center|1
|align=center|4
|align=center|1
|align=center|2
|align=center|1
|-
| 1989
| Casualties of War
|
|
|
|
|align=center|1
|
|-
| 1993
| Carlito's Way
|
|
|
|
|align=center|2
|
|-
| 2006
| The Black Dahlia
|align=center|1
|
|
|
|
|
|-
!colspan="2"|Total
!align=center|9
!align=center|1
!align=center|4
!align=center|1
!align=center|12
!align=center|1
|}
References
Bibliography
* |isbn978-2-7436-4445-1 |oclc1037152284 |refnone}}
* Thomson, David (October 26, 2010). The New Biographical Dictionary of Film: Fifth Edition, Completely Updated and Expanded (hardcover ed.). Knopf. .
* Salamon, Julie (1991). Devil's Candy: The Bonfire of the Vanities Goes to Hollywood (hardcover ed.). Houghton. .
* Bliss, Michael (1986). Brian De Palma. Scarecrow.
* Blumenfeld, Samuel, Vachaud, Laurent (2001). Brian De Palma. Calmann-Levy.
* Dworkin, Susan (1984). Double De Palma: A Film Study with Brian De Palma''. Newmarket.
External links
*
* [http://www.sensesofcinema.com/2003/great-directors/de_palma/ Senses of Cinema: Great Directors Critical Database]
* [https://www.flickr.com/groups/doubledepalma/ Photos and discussion around the director]
* [http://www.virtual-history.com/movie/person/66/brian-de-palma Literature on Brian De Palma]
Category:1940 births
Category:20th-century American male writers
Category:20th-century American screenwriters
Category:21st-century American male writers
Category:21st-century American screenwriters
Category:American action film directors
Category:American horror film directors
Category:American male screenwriters
Category:American writers of Italian descent
Category:Columbia University alumni
Category:English-language film directors
Category:Film directors from New Jersey
Category:Film producers from New Jersey
Category:Giallo film directors
Category:Living people
Category:People of Apulian descent
Category:Postmodernist filmmakers
Category:Sarah Lawrence College alumni
Category:Screenwriters from New Jersey
Category:Writers from Newark, New Jersey | https://en.wikipedia.org/wiki/Brian_De_Palma | 2025-04-05T18:26:44.860620 |
4218 | North American B-25 Mitchell | |developed_from= North American NA-40
|variants|developed_into North American XB-28 Dragon
}}
The North American B-25 Mitchell is an American medium bomber that was introduced in 1941 and named in honor of Brigadier General William "Billy" Mitchell, a pioneer of U.S. military aviation. Used by many Allied air forces, the B-25 served in every theater of World War II, and after the war ended, many remained in service, operating across four decades. Produced in numerous variants, nearly 10,000 B-25s were built. North American Aviation (NAA) used its NA-40B design to develop the NA-62, which competed for the medium bomber contract. No YB-25 was available for prototype service tests. In September 1939, the Air Corps ordered the NA-62 into production as the B-25, along with the other new Air Corps medium bomber, the Martin B-26 Marauder "off the drawing board".
Early into B-25 production, NAA incorporated a significant redesign to the wing dihedral. The first nine aircraft had a constant-dihedral, meaning the wing had a consistent, upward angle from the fuselage to the wingtip. This design caused stability problems. "Flattening" the outer wing panels just outboard of the engine nacelles nullified the problem and gave the B-25 its gull wing configuration. Less noticeable changes during this period included an increase in the size of the tail fins and a decrease in their inward tilt at their tops.
NAA continued design and development in 1940 and 1941. Both the B-25A and B-25B series entered USAAF service. The B-25B was operational in 1942. Combat requirements led to further developments. Before the year was over, NAA was producing the B-25C and B-25D series at different plants. Also in 1942, the manufacturer began design work on the cannon-armed B-25G series. The NA-100 of 1943 and 1944 was an interim armament development at the Kansas City complex known as the B-25D2. Similar armament upgrades by U.S-based commercial modification centers involved about half of the B-25G series. Further development led to the B-25H, B-25J, and B-25J2. The gunship design concept dates to late 1942 and NAA sent a field technical representative to the SWPA. The factory-produced B-25G entered production during the NA-96 order followed by the redesigned B-25H gunship. The B-25J reverted to the bomber role, but it, too, could be outfitted as a strafer.
NAA manufactured the greatest number of aircraft in World War II, the first time a company had produced trainers, bombers, and fighters simultaneously (the AT-6/SNJ Texan/Harvard, B-25 Mitchell, and the P-51 Mustang). It produced B-25s at both its Inglewood main plant and an additional 6,608 aircraft at its Kansas City, Kansas, plant at Fairfax Airport.
After the war, the USAF placed a contract for the TB-25L trainer in 1952. This was a modification program by Hayes of Birmingham, Alabama. Its primary role was reciprocating engine pilot training.
A development of the B-25 was the North American XB-28 Dragon, designed as a high-altitude bomber. Two prototypes were built with the second prototype, the XB-28A, evaluated as a photo-reconnaissance platform, but the aircraft did not enter production.
Flight characteristics
The B-25 was a safe and forgiving aircraft to fly. With one engine out, 60° banking turns into the dead engine were possible, and control could be easily maintained down to 145 mph (230 km/h). The pilot had to remember to maintain engine-out directional control at low speeds after takeoff with rudder; if this maneuver were attempted with ailerons, the aircraft could snap out of control. The tricycle landing gear made for excellent visibility while taxiing. The only significant complaint about the B-25 was its extremely noisy engines; as a result, many pilots eventually suffered from some degree of hearing loss.
The high noise level was due to design and space restrictions in the engine cowlings, which resulted in the exhaust "stacks" protruding directly from the cowling ring and partly covered by a small triangular fairing. This arrangement directed exhaust and noise directly at the pilot and crew compartments. Durability The Mitchell was exceptionally sturdy and could withstand tremendous punishment. One B-25C of the 321st Bomb Group was nicknamed "Patches" because its crew chief painted all the aircraft's flak hole patches with bright yellow zinc chromate primer. By the end of the war, this aircraft had completed over 300 missions, had been belly-landed six times, and had over 400 patched holes. The airframe of "Patches" was so distorted from battle damage that straight-and-level flight required 8° of left aileron trim and 6° of right rudder, causing the aircraft to "crab" sideways across the sky. Operational history B-25Bs aboard USS Hornet]] Asia-Pacific
Most B-25s in American service were used in the war against Japan in Asia and the Pacific. The Mitchell fought from the Northern Pacific to the South Pacific and the Far East. These areas included the campaigns in the Aleutian Islands, Papua New Guinea, the Solomon Islands, New Britain, China, Burma and the island hopping campaign in the Central Pacific, as well as in the Doolittle Raid. The aircraft's potential as a ground-attack aircraft emerged during the Pacific war. The jungle environment reduced the usefulness of medium-level bombing, and made low-level attack the best tactic. Using similar mast height level tactics and skip bombing, the B-25 proved itself to be a capable anti-shipping weapon and sank many enemy sea vessels. An ever-increasing number of forward firing guns made the B-25 a formidable strafing aircraft for island warfare. The strafer models were the B-25C1/D1, the B-25J1 and with the NAA strafer nose, the J2 subseries.
In Burma, the B-25 was used to attack Japanese communication links, especially bridges in central Burma. It also helped supply the besieged troops at Imphal in 1944. The China Air Task Force, the Chinese American Composite Wing, the First Air Commando Group, the 341st Bomb Group, and eventually, the relocated 12th Bomb Group, all operated the B-25 in the China Burma India Theater. Many of these missions involved battle-field isolation, interdiction, and close air support.
Later in the war, as the USAAF acquired bases in other parts of the Pacific, the Mitchell could strike targets in Indochina, Formosa, and Kyushu, increasing the usefulness of the B-25. It was also used in some of the shortest raids of the Pacific War, striking from Saipan against Guam and Tinian. The 41st Bomb Group used it against Japanese-occupied islands that had been bypassed by the main campaign, such as the Marshall Islands.
Middle East and Italy
The first B-25s arrived in Egypt and were carrying out independent operations by October 1942. Operations there against Axis airfields and motorized vehicle columns supported the ground actions of the Second Battle of El Alamein. Thereafter, the aircraft took part in the rest of the campaign in North Africa, the invasion of Sicily, and the advance up Italy. In the Strait of Messina to the Aegean Sea, the B-25 conducted sea sweeps as part of the coastal air forces. In Italy, the B-25 was used in the ground attack role, concentrating on attacks against road and rail links in Italy, Austria, and the Balkans. The B-25 had a longer range than the Douglas A-20 Havoc and Douglas A-26 Invader, allowing it to reach further into occupied Europe. The five bombardment groups – 20 squadrons – of the Ninth and Twelfth Air Forces that used the B-25 in the Mediterranean Theater of Operations were the only U.S. units to employ the B-25 in Europe.
Europe
The RAF received nearly 900 Mitchells, using them to replace Douglas Bostons, Lockheed Venturas, and Vickers Wellington bombers. The Mitchell entered active RAF service on 22 January 1943. At first, it was used to bomb targets in occupied Europe. After the Normandy invasion, the RAF and France used Mitchells in support of the Allies in Europe. Several squadrons moved to forward airbases on the continent. The USAAF used the B-25 in combat in the Mediterranean Theater of Operations.
US Army Air Forces
The B-25B found fame as the bomber used in the 18 April 1942 Doolittle Raid, in which 15 B-25Bs led by Lieutenant Colonel Jimmy Doolittle attacked mainland Japan, four months after the Japanese attack on Pearl Harbor (a 16th plane which participated was forced to abort, landing in Russia, where it and the crew were initially interned). The mission gave a much-needed lift in morale to the Americans and alarmed the Japanese, who had believed their home islands to be inviolable by enemy forces. Although the amount of actual damage done was relatively minor, it forced the Japanese to divert troops for home defense for the remainder of the war.
The raiders took off from the carrier and bombed Tokyo and four other Japanese cities. Fifteen of the bombers subsequently crash-landed en route to recovery fields in eastern China. The losses resulted from the task force being spotted by a Japanese vessel, which forced the bombers to take off early, fuel exhaustion, stormy nighttime conditions with zero visibility, and the failure to activate electronic homing aids at the recovery bases. Only one B-25 bomber landed intact, in Vladivostok, where its five-man crew was interned and the aircraft confiscated. Of the 80 aircrew members, 69 survived their historic mission and eventually made it back to American lines.
, 3rd BG(L) USAAF, Dobodura Airfield 1943]]
Following additional modifications, including the addition of a Plexiglas dome for navigational sightings to replace the overhead window for the navigator, and heavier nose armament, de-icing and anti-icing equipment, the B-25C entered USAAF operations. Through block 20, the B-25C and B-25D differed only in the location of manufacture: C series at Inglewood, California, and D series at Kansas City, Kansas. After block 20, some NA-96s began the transition to the G series, while some NA-87s acquired interim modifications eventually produced as the B-25D2 and ordered as the NA-100. NAA built a total of 3,915 B-25Cs and Ds during World War II.
Although the B-25 was designed to bomb from medium altitudes in level flight, it was frequently used in the Southwest Pacific theatre in treetop-level strafing and missions with parachute-retarded fragmentation bombs against Japanese airfields in New Guinea and the Philippines. These heavily armed Mitchells were field-modified at Townsville, Australia, under the direction of Major Paul I. "Pappy" Gunn and North American technical representative Jack Fox. These "commerce destroyers" were also used on strafing and skip bombing missions against Japanese shipping trying to resupply their armies.
Under the leadership of Lieutenant General George C. Kenney, Mitchells of the Far East Air Forces and its existing components, the Fifth and Thirteenth Air Forces, devastated Japanese targets in the Southwest Pacific Theater during 1944 to 1945. The USAAF played a significant role in pushing the Japanese back to their home islands. The type operated with great effect in the Central Pacific, Alaska, North Africa, Mediterranean, and China-Burma-India theaters.
The USAAF Antisubmarine Command made great use of the B-25 in 1942 and 1943. Some of the earliest B-25 bomb groups also flew the Mitchell on coastal patrols after the Pearl Harbor attack, prior to the AAFAC organization. Many of the two dozen or so antisubmarine squadrons flew the B-25C, D, and G series in the American Theater antisubmarine campaign, often in the distinctive, white sea-search camouflage.
Combat developments
Use as a gunship
<!-- Gunship links here -->
In anti-shipping operations, the USAAF had an urgent need for hard-hitting aircraft, and North American responded with the B-25G. In this series, the transparent nose and bombardier/navigator position was changed for a shorter, hatched nose with two fixed .50 in (12.7 mm) machine guns and a manually loaded 75 mm (2.95 in) M4 cannon, one of the largest weapons fitted to an aircraft, similar to the British 57 mm gun-armed Mosquito Mk. XVIII and the autoloading German 75 mm long-barrel Bordkanone BK 7,5 heavy-caliber ordnance fitted to both the Henschel Hs 129B-3 and Junkers Ju 88P-1. The B-25G's shorter nose placed the cannon breech behind the pilot, where it could be manually loaded and serviced by the navigator; his crew station was moved to a position just behind the pilot. The navigator signaled the pilot when the gun was ready and the pilot fired the weapon using a button on his control wheel.
The Royal Air Force, U.S. Navy, and Soviet VVS each conducted trials with this series, but none adopted it. The G series comprised one prototype, five preproduction C conversions, 58 C series modifications, and 400 production aircraft for a total of 464 B-25Gs. In its final version, the G-12, an interim armament modification, eliminated the lower Bendix turret and added a starboard dual gun pack, waist guns, and a canopy for the tail gunner to improve the view when firing the single tail gun. In April 1945, the air depots in Hawaii refurbished about two dozen of these and included the eight-gun nose and rocket launchers in the upgrade.
The B-25H series continued the development of the gunship version. NAA Inglewood produced 1000. The H had even more firepower. Most replaced the M4 gun with the lighter T13E1, In the new FEAF, these were redesignated the G1 and H1 series, respectively.
The H series normally came from the factory mounting four fixed, forward-firing .50 in (12.7 mm) machine guns in the nose; four in a pair of under-cockpit conformal flank-mount gun pod packages (two guns per side); two more in the manned dorsal turret, relocated forward to a position just behind the cockpit (which became standard for the J-model); one each in a pair of new waist positions, introduced simultaneously with the forward-relocated dorsal turret; and lastly, a pair of guns in a new tail-gunner's position. Company promotional material bragged that the B-25H could "bring to bear 10 machine guns coming and four going, in addition to the 75 mm cannon, eight rockets, and 3,000 lb (1,360 kg) of bombs."
The H had a modified cockpit with single flight controls operated by the pilot. The co-pilot's station and controls were removed and replaced by a smaller seat used by the navigator/cannoneer, The radio operator crew position was aft of the bomb bay with access to the waist guns. Factory production totals were 405 B-25Gs and 1,000 B-25Hs, with 248 of the latter being used by the Navy as PBJ-1Hs.
<!-- WHEN CORRECTING HERE, CORRECT THE SAME TEXT IN Gunship ARTICLE, TOO -->
Return to medium bomber
Following the two-gunship series, NAA again produced the medium bomber configuration with the B-25J series. It optimized the mix of the interim NA-100 and the H series, having both the bombardier's station and fixed guns of the D and the forward turret and refined armament of the H series. NAA also produced a strafer nose-first shipped to air depots as kits, then introduced on the production line in alternating blocks with the bombardier nose. The solid metal "strafer" nose housed eight centerline Browning M2 .50 caliber machine guns. The remainder of the armament was as in the H-5. NAA also supplied kits to mount eight underwing 5 inch High Velocity Airborne Rockets just outside the propeller arcs. These were mounted on zero-length launch rails, four per wing.
for World War II Weekend 2015 in Reading, Pennsylvania]]
The final, and most numerous, series of the Mitchell, the B-25J, looked less like earlier series apart from the well-glazed bombardier's nose of nearly identical appearance to the earliest B-25 subtypes. was flown to Eglin AFB, Florida, from Turner Air Force Base, Georgia, on 21 May 1960, the last flight by a USAF B-25. It was presented by Brigadier General A. J. Russell, Commander of SAC's 822d Air Division at Turner AFB, to the Air Proving Ground Center Commander, Brigadier General Robert H. Warren. He in turn presented the bomber to Valparaiso, Florida, Mayor Randall Roberts on behalf of the Niceville-Valparaiso Chamber of Commerce. Four of the original Tokyo Raiders were present for the ceremony, Colonel (later Major General) David Jones, Colonel Jack Simms, Lieutenant Colonel Joseph Manske, and retired Master Sergeant Edwin W. Horton. It was donated back to the Air Force Armament Museum c. 1974 and marked as Doolittle's 40-2344.
U.S. Navy and USMC
The U.S. Navy designation for the Mitchell was the PBJ-1 and apart from increased use of radar, it was configured like its Army Air Forces counterparts. Under the pre-1962 USN/USMC/USCG aircraft designation system, PBJ-1 stood for Patrol (P) Bomber (B) built by North American Aviation (J), first variant (-1) under the existing American naval aircraft designation system of the era. The PBJ had its origin in an inter-service agreement of mid-1942 between the Navy and the USAAF exchanging the Boeing Renton plant for the Kansas plant for B-29 Superfortress production. The Boeing XPBB Sea Ranger flying boat, competing for B-29 engines, was cancelled in exchange for part of the Kansas City Mitchell production. Other terms included the interservice transfer of 50 B-25Cs and 152 B-25Ds to the Navy. The bombers carried Navy bureau numbers (BuNos), beginning with BuNo 34998. The first PBJ-1 arrived in February 1943, and nearly all reached Marine Corps squadrons, beginning with Marine Bombing Squadron 413 (VMB-413). Following the AAFAC format, the Marine Mitchells had search radar in a retractable radome replacing the remotely operated ventral turret. Later D and J series had nose-mounted APS-3 radar; and later still, J and H series mounted radar in the starboard wingtip. The large quantities of B-25H and J series became known as PBJ-1H and PBJ-1J, respectively. These aircraft often operated along with earlier PBJ series in Marine squadrons.
The PBJs were operated almost exclusively by the Marine Corps as land-based bombers. The U.S. Marine Corps established Marine bomber squadrons (VMB), beginning with VMB-413, in March 1943 at MCAS Cherry Point, North Carolina. Eight VMB squadrons were flying PBJs by the end of 1943 as the initial Marine medium bombardment group. Four more squadrons were in the process of formation in late 1945, but had not yet deployed by the time the war ended.
Operations of the Marine Corps PBJ-1s began in March 1944. The Marine PBJs flew from the Philippines, Saipan, Iwo Jima, and Okinawa during the last few months of the Pacific war. Their primary mission was the long-range interdiction of enemy shipping trying to run the blockade, which was strangling Japan. The weapon of choice during these missions was usually the five-inch HVAR rocket, eight of which could be carried. Some VMB-612 intruder PBJ-1D and J series planes flew without top turrets to save weight and increase range on night patrols, especially towards the end of the war when air superiority had been achieved.
During the war, the Navy tested the cannon-armed G series and conducted carrier trials with an H equipped with arresting gear. After World War II, some PBJs stationed at the Navy's rocket laboratory in Inyokern, California, site of the present-day Naval Air Weapons Station China Lake, tested air-to-ground rockets and arrangements. One arrangement was a twin-barrel nose that could fire 10 spin-stabilized five-inch rockets in one salvo.
Royal Air Force
The Royal Air Force (RAF) was an early customer for the B-25 via Lend-Lease. The first Mitchells were given the service name Mitchell I by the RAF and were delivered in August 1941, to No. 111 Operational Training Unit based in the Bahamas. These bombers were used exclusively for training and familiarization and never became operational. The B-25Cs and Ds were designated Mitchell II. Altogether, 167 B-25Cs and 371 B-25Ds were delivered to the RAF. The RAF tested the cannon-armed G series but did not adopt the series nor the follow-on H series.
By the end of 1942, the RAF had taken delivery of 93 Mitchells, marks I and II. Some served with squadrons of No. 2 Group RAF, the RAF's tactical medium-bomber force, including No. 139 Wing RAF at RAF Dunsfold. The first RAF operation with the Mitchell II took place on 22 January 1943, when six aircraft from No. 180 Squadron RAF attacked oil installations at Ghent. After the invasion of Europe (by which point 2 Group was part of Second Tactical Air Force), all four Mitchell squadrons moved to bases in France and Belgium (Melsbroek) to support Allied ground forces. The British Mitchell squadrons were joined by No. 342 (Lorraine) Squadron of the French Air Force in April 1945.
As part of its move from Bomber Command, No 305 (Polish) Squadron flew Mitchell IIs from September to December 1943 before converting to the de Havilland Mosquito. In addition to No. 2 Group, the B-25 was used by various second-line RAF units in the UK and abroad. In the Far East, No. 3 PRU, which consisted of Nos. 681 and 684 Squadrons, flew the Mitchell (primarily Mk IIs) on photographic reconnaissance sorties.
Royal Canadian Air Force
The Royal Canadian Air Force (RCAF) used the B-25 Mitchell for training during the war. Postwar use continued operations with most of the 162 Mitchells received. The first B-25s had been diverted to Canada from RAF orders. These included one Mitchell I, 42 Mitchell IIs, and 19 Mitchell IIIs. No 13 (P) Squadron was formed unofficially at RCAF Rockcliffe in May 1944 and used Mitchell IIs on high-altitude aerial photography sorties. No. 5 Operational Training Unit at Boundary Bay, British Columbia and Abbotsford, British Columbia, operated the B-25D Mitchell in the training role together with B-24 Liberators for Heavy Conversion as part of the BCATP. The RCAF retained the Mitchell until October 1963.
No 418 (Auxiliary) Squadron received its first Mitchell IIs in January 1947. It was followed by No 406 (auxiliary), which flew Mitchell IIs and IIIs from April 1947 to June 1958. No 418 operated a mix of IIs and IIIs until March 1958. No 12 Squadron of Air Transport Command also flew Mitchell IIIs along with other types from September 1956 to November 1960. In 1951, the RCAF received an additional 75 B-25Js from USAF stocks to make up for attrition and to equip various second-line units.
Royal Australian Air Force
The Australians received Mitchells by the spring of 1944. The joint Australian-Dutch No. 18 (Netherlands East Indies) Squadron RAAF had more than enough Mitchells for one squadron, so the surplus went to re-equip the RAAF's No. 2 Squadron, replacing their Beauforts.
Dutch Air Force
in 1943]]
During World War II, the Mitchell served in fairly large numbers with the Air Force of the Dutch government-in-exile. They participated in combat in the East Indies, as well as on the European front. On 30 June 1941, the Netherlands Purchasing Commission, acting on behalf of the Dutch government-in-exile in London, signed a contract with North American Aviation for 162 B-25C aircraft. The bombers were to be delivered to the Netherlands East Indies to help deter any Japanese aggression into the region.
In February 1942, the British Overseas Airways Corporation agreed to ferry 20 Dutch B-25s from Florida to Australia travelling via Africa and India, and an additional 10 via the South Pacific route from California. During March, five of the bombers on the Dutch order had reached Bangalore, India, and 12 had reached Archerfield in Australia. The B-25s in Australia were used as the nucleus of a new squadron, No. 18. This squadron was staffed jointly by Australian and Dutch aircrews plus a smattering of aircrews from other nations and operated under Royal Australian Air Force command for the remainder of the war.
The B-25s of No. 18 Squadron were painted with the Dutch national insignia (at that time a rectangular Netherlands flag) and carried NEIAF serials. Discounting the ten "temporary" B-25s delivered to 18 Squadron in early 1942, a total of 150 Mitchells were taken on strength by the NEIAF, 19 in 1942, 16 in 1943, 87 in 1944, and 28 in 1945. They flew bombing raids against Japanese targets in the East Indies. In 1944, the more capable B-25J Mitchells replaced most of the earlier C and D models.
In June 1940, No. 320 (Netherlands) Squadron RAF had been formed from personnel formerly serving with the Royal Dutch Naval Air Service, who had escaped to England after the German occupation of the Netherlands. Equipped with various British aircraft, No. 320 Squadron flew antisubmarine patrols, convoy escort missions, and performed air-sea rescue duties. They acquired the Mitchell II in September 1943, performing operations over Europe against gun emplacements, railway yards, bridges, troops, and other tactical targets. They moved to Belgium in October 1944, and transitioned to the Mitchell III in 1945. No. 320 Squadron was disbanded in August 1945. Following the war, B-25s were used by Dutch forces during the Indonesian National Revolution.
Soviet Air Force
The USSR received 862 B-25s (B, C, D, G, and J types) from the United States under Lend-Lease during World War II via the Alaska–Siberia ALSIB ferry route. A total of 870 B-25s were sent to the Soviets, meaning that 8 aircraft were lost during transportation.
Other damaged B-25s arrived or crashed in the Far East of Russia, and one Doolittle Raid aircraft landed there short of fuel after attacking Japan. This lone airworthy Doolittle Raid aircraft to reach the Soviet Union was lost in a hangar fire in the early 1950s while undergoing routine maintenance. In general, the B-25 was operated as a ground-support and tactical day bomber (as similar Douglas A-20 Havocs were used). It saw action in fights from Stalingrad (with B/C/D models) to the German surrender during May 1945 (with G/J types).
The B-25s that remained in Soviet Air Force service after the war were assigned the NATO reporting name "Bank".
China
Well over 100 B-25Cs and Ds were supplied to the Nationalist Chinese during the Second Sino-Japanese War. In addition, a total of 131 B-25Js were supplied to China under Lend-Lease.
The four squadrons of the 1st BG (1st, 2nd, 3rd, and 4th) of the 1st Medium Bomber Group were formed during the war. They formerly operated Russian-built Tupolev SB bombers, then transferred to the B-25. The 1st BG was under the command of Chinese-American Composite Wing while operating B-25s. Following the end of the war in the Pacific, these four bombardment squadrons were established to fight against the Communist insurgency that was rapidly spreading throughout the country. During the Chinese Civil War, Chinese Mitchells fought alongside de Havilland Mosquitos.
In December 1948, the Nationalists were forced to retreat to the island of Taiwan, taking many of their Mitchells with them. However, some B-25s were left behind and were pressed into service with the air force of the new People's Republic of China.
Brazilian Air Force
During the war, the Força Aérea Brasileira received a few B-25s under Lend-Lease. Brazil declared war against the Axis powers in August 1942 and participated in the war against the U-boats in the southern Atlantic. The last Brazilian B-25 was finally declared surplus in 1970.
Free French
The Royal Air Force issued at least 21 Mitchell IIIs to No 342 Squadron, which was made up primarily of Free French aircrews. Following the liberation of France, this squadron transferred to the newly formed French Air Force (''Armée de l'Air) as GB I/20 Lorraine. The aircraft continued in operation after the war, with some being converted into fast VIP transports. They were struck off charge in June 1947.
Biafra
In October 1967, during the Nigerian Civil War, Biafra bought two Mitchells. After a few bombings in November, they were put out of action in December. Indonesia Indonesia received 42 Mitchells after the Round Table Conference, one was used for strafing runs against a Dutch warship while two others were used in Maluku.
Variants
fitted to the nose]]
;B-25
:The initial production version of B-25s, they were powered by R-2600-9 engines. and carried up to 3,600 lb (1,600 kg) of bombs and defensive armament of three .30 machine guns in nose, waist, and ventral positions, with one .50 machine gun in the tail. The first nine aircraft were built with constant dihedral angle. Due to low stability, the wing was redesigned so that the dihedral was eliminated on the outboard section (number made: 24).
;B-25A
:This version of the B-25 was modified to make it combat ready; additions included self-sealing fuel tanks, crew armor, and an improved tail-gunner station. No changes were made in the armament. It was redesignated obsolete (RB-25A) in 1942 (number made: 40).
;B-25B
:The tail and gun position were removed and replaced by a manned dorsal turret on the rear fuselage and retractable, remotely operated ventral turret, each with a pair of .50 in (12.7 mm) machine guns. A total of 120 were built (this version was used in the Doolittle Raid). A total of 23 were supplied to the Royal Air Force as the Mitchell Mk I.
;B-25C
:An improved version of the B-25B, its powerplants were upgraded from Wright R-2600-9 radials to R-2600-13s; de-icing and anti-icing equipment were added; the navigator received a sighting blister; and nose armament was increased to two .50 in (12.7 mm) machine guns, one fixed and one flexible. The B-25C model was the first mass-produced B-25 version; it was also used in the United Kingdom (as the Mitchell Mk II), in Canada, China, the Netherlands, and the Soviet Union (number made: 1,625).
;ZB-25C
;B-25D
:Through block 20, the series was near identical to the B-25C. The series designation differed in that the B-25D was made in Kansas City, Kansas, whereas the B-25C was made in Inglewood, California. Later blocks with interim armament upgrades, the D2s, first flew on 3 January 1942 (number made: 2,290).
;F-10
:The F-10 designation distinguished 45 B-25Ds modified for photographic reconnaissance. All armament, armor, and bombing equipment were stripped. Three K.17 cameras were installed, one pointing down and two more mounted at oblique angles within blisters on each side of the nose. Optionally, a second downward-pointing camera could also be installed in the aft fuselage. Although designed for combat operations, these aircraft were mainly used for ground mapping.
;B-25D weather reconnaissance variant
:In 1944, four B-25Ds were converted for weather reconnaissance. One later user was the 53d Weather Reconnaissance Squadron, originally called the Army Hurricane Reconnaissance Unit, now called the "Hurricane Hunters". Weather reconnaissance first started in 1943 with the 1st Weather Reconnaissance Squadron, with flights on the North Atlantic ferry routes.
;ZB-25D
;XB-25E
:A single B-25C was modified to test de-icing and anti-icing equipment that circulated exhaust from the engines in chambers in the leading and trailing edges and empennage. The aircraft was tested for almost two years, beginning in 1942; while the system proved extremely effective, no production models were built that used it before the end of World War II. Many surviving warbird-flown B-25 aircraft today use the de-icing system from the XB-25E (number made: 1, converted).
;ZXB-25E
;XB-25F-A
:A modified B-25C, it used insulated electrical coils mounted inside the wing and empennage leading edges to test the effectiveness as a de-icing system. The hot air de-icing system tested on the XB-25E was determined to be the more practical of the two (number made: 1, converted).
;XB-25G
:This modified B-25C had the transparent nose replaced to create a short-nosed gunship carrying two fixed .50 in (12.7 mm) machine guns and a 75 mm (2.95 in) M4 cannon, then the largest weapon ever carried on an American bomber (number made: 1, converted).
;B-25G
:The B-25G followed the success of the prototype XB-25G and production was a continuation of the NA96. The production model featured increased armor and a greater fuel supply than the XB-25G. One B-25G was passed to the British, who gave it the name Mitchell II that had been used for the B-25C. The USSR also tested the G (number made: 463; five converted Cs, 58 modified Cs, 400 production).
, Colorado]]
;B-25H
:An improved version of the B-25G, this version relocated the manned dorsal turret to a more forward location on the fuselage just aft of the flight deck. It also featured two additional fixed .50 in (12.7 mm) machine guns in the nose and in the H-5 onward, four in fuselage-mounted pods. The T13E1 light weight cannon replaced the heavy M4 cannon 75 mm (2.95 in). Single controls were installed from the factory with navigator in the right seat (number made: 1000; two airworthy ).
;B-25J-NC
: Follow-on production at Kansas City, the B-25J could be called a cross between the B-25D and the B-25H. It had a transparent nose, but many of the delivered aircraft were modified to have a strafer nose (J2). Most of its 14–18 machine guns were forward-facing for strafing missions, including the two guns of the forward-located dorsal turret. The RAF received 316 aircraft, which were known as the Mitchell III. The J series was the last factory series production of the B-25 (number made: 4,318).
;CB-25J
:Utility transport version
;VB-25J
:A number of B-25s were converted for use as staff and VIP transports. Henry H. Arnold and Dwight D. Eisenhower both used converted B-25Js as their personal transports. The last VB-25J in active service was retired in May 1960 at the Eglin Air Force Base in Florida. Trainer variants
Most models of the B-25 were used at some point as training aircraft.
;TB-25D
:Originally designated AT-24A (Advanced Trainer, Model 24, Version A), trainer modification of B-25D often with the dorsal turret omitted, in total, 60 AT-24s were built.
;TB-25G
:Originally designated AT-24B, trainer modification of B-25G
;TB-25C
:Originally designated AT-24C, trainer modification of B-25C
;TB-25J
:Originally designated AT-24D, trainer modification of B-25J, another 600 B-25Js were modified after the war.
;TB-25K
:Hughes E1 fire-control radar trainer (Hughes) (number made: 117)
;TB-25L
:Hayes pilot-trainer conversion (number made: 90)
;TB-25M
:Hughes E5 fire-control radar trainer (number made: 40)
;TB-25N
:Hayes navigator-trainer conversion (number made: 47)
U.S. Navy / U.S. Marine Corps variants
;PBJ-1C
:Similar to the B-25C for the U.S. Navy, it was often fitted with airborne search radar and used in the antisubmarine role.
;PBJ-1D
:Similar to the B-25D for the U.S. Navy and U.S. Marine Corps, it differed in having a single .50 in (12.7 mm) machine gun in the tail turret and waist gun positions similar to the B-25H. Often it was fitted with airborne search radar and used in the antisubmarine role.
;PBJ-1G
:U.S. Navy/U.S. Marine Corps designation for the B-25G, trials only
;PBJ-1H
:U.S. Navy/U.S. Marine Corps designation for the B-25H
:One PBJ-1H was modified with carrier takeoff and landing equipment and successfully tested on the USS Shangri-La, but the Navy did not continue development.
;PBJ-1J
:U.S. Navy designation for the B-25J (Blocks −1 through −35), it had improvements in radio and other equipment. Beside the standard armament package, the Marines often fitted it with 5-inch underwing rockets and search radar for the antishipping/antisubmarine role. The large Tiny Tim rocket-powered warhead was used in 1945. Operators
;
* An ex-USAAF TB-25N (s/n 44-31173) was acquired in June 1961 and registered locally as LV-GXH, it was privately operated as a smuggling aircraft. It was confiscated by provincial authorities in 1971 and handed over to Empresa Provincial de Aviacion Civil de San Juan, which operated it until its retirement due to a double engine failure in 1976. Currently, it is under restoration to airworthiness.
;
on a training flight near Canberra in 1942.]]
* Royal Australian Air Force – 50 aircraft, including three joint units with Military Aviation – Royal Dutch East Indies Army (ML-KNIL):
** No. 2 Squadron RAAF;
** No. 18 (Netherlands East Indies) Squadron RAAF;
** No. 19 (Netherlands East Indies) Squadron RAAF and;
** No. 119 (Netherlands East Indies) Squadron RAAF.
;
* Biafran Air Force operated two aircraft.
;
* Bolivian Air Force operated 13 aircraft
;
* Brazilian Air Force operated 75 aircraft, including B-25B, B-25C, and B-25J.
;
* Royal Canadian Air Force operated 164 aircraft in bomber, light transport, trainer, and special mission roles.
** No. 13 (P) Squadron Mitchell II at RCAF Station Rockcliffe
** No. 406 Auxiliary Squadron Mitchell III
;
* Republic of China Air Force operated more than 180 aircraft.
;
* People's Liberation Army Air Force operated captured Nationalist Chinese aircraft.
;
* Chilean Air Force operated 12 aircraft.
;
* Colombian Air Force operated three aircraft.
;
* Cuban Army Air Force operated six aircraft.
* Fuerza Aérea del Ejército de Cuba
* Cuerpo de Aviación del Ejército de Cuba
;
* Dominican Air Force operated five aircraft.
;
* French Air Force operated 11 aircraft.
* Free French Air Force operated 18 aircraft.
;
* Indonesian Air Force – in 1950, received some B-25 Mitchells previously operated by the Military Aviation – Royal Dutch East Indies Army (ML-KNIL). The last of these served the Indonesian military until 1979.
;
* Mexican Air Force received three B-25Js in December 1945, which remained in use until at least 1950.
* Eight Mexican civil registrations were allocated to B-25s, including one aircraft registered to the Bank of Mexico, but used by the President of Mexico.
;
, formed in 1946, during the Indonesian War of Independence. These aircraft were used in the ground attack role, leading to the dorsal turret being removed.]]
* Military Aviation – Royal Dutch East Indies Army (ML-KNIL; 1942–1950): 149 aircraft (initially in three joint units with the Royal Australian Air Force) during World War II and the Indonesian War of Independence:
** No. 18 Squadron (NEI) RAAF/18 Squadron ML-KNIL (1942–1950) – bomber
** No. 119 (Netherlands East Indies) Squadron RAAF (1943–1943) – bomber
** No. 19 Squadron (NEI) RAAF/19 Squadron ML-KNIL (1944–1948) – transport
** 16 Squadron ML-KNIL (1946–1948) – ground attack
** 20 Squadron ML-KNIL (1946–1950) – transport
* Naval Aviation Service (MLD) – 107 aircraft; initially in a joint unit with the UK Royal Air Force:
** No. 320 (Netherlands) Squadron RAF (1942–1946)
;
* Peruvian Air Force received eight B-25Js in 1947, which formed Bomber Squadron N° 21 at Talara.
;
* Polish Air Forces on exile in Great Britain
** No. 305 Polish Bomber Squadron
;
* Spanish Air Force operated one ex-USAAF example interned in 1944 and operated between 1948 and 1956.
;
* Soviet Air Force (Voyenno-Vozdushnye Sily. VVS) received a total of 866 B-25s of the C, D, G*, and J series. * trials only (5).
;
* Royal Air Force received just over 700 aircraft.}}
** No. 98 Squadron RAF – September 1942 – November 1945 (converted to the Mosquito
* United States Marine Corps
;
* Uruguayan Air Force operated 15 aircraft.
;
* Venezuelan Air Force operated 24 aircraft.
Accidents and incidents
Empire State Building crash
At 9:40 on 28 July 1945, a USAAF B-25D crashed in thick fog into the north side of the Empire State Building between the 79th and 80th floors. Fourteen people died — 11 in the building and the three occupants of the aircraft, including the pilot, Colonel William F. Smith. Betty Lou Oliver, an elevator attendant, survived the impact and the subsequent fall of the elevator cage 75 stories to the basement.
French general Philippe Leclerc was aboard his North American B-25 Mitchell, Tailly II, when it crashed near Colomb-Béchar in French Algeria on 28 November 1947, killing everyone on board.
Lake Erie skydiving disaster
A bit after 16:00 on 27 August 1967, a converted civilian B-25 mistakenly dropped eighteen<!--MOS:NUMNOTES--> skydivers over Lake Erie, four or five nautical miles (7.5–9.3 km) from Huron, Ohio. The air traffic controller had confused the B-25 with a Cessna 180 Skywagon that was trailing it to take photographs, causing the B-25 pilot to think he was over the intended drop site at Ortner Airport. Sixteen of the jumpers drowned, while two were rescued. A National Transportation Safety Board report faulted the pilot, and to a lesser extent the skydivers, for executing a jump when they could not see the ground, and faulted the controller for the misidentification. The United States was subsequently held liable for the controller's negligence.
Training Mission Incident
On Nov. 1, 1941, just one month before the Japanese attack on Pearl Harbor, a B-25 bomber on a training mission flying out of Wright-Patterson Air Force Base, crashed near Benton Ridge, Ohio. Surviving aircraft
, of the Canadian Warplane Heritage Museum during the Brantford Air Show at Brantford, Ontario, Canada in 2010]]
Many B-25s are currently kept in airworthy condition by air museums and collectors.
Specifications (B-25H)
|cruise speed mph=230
|cruise speed note|stall speed mph
|stall speed note|never exceed speed mph
|never exceed speed note|minimum control speed mph
|minimum control speed note|range miles1350
|range note|combat range miles
|combat range note|ferry range miles
|ferry range note|endurance<!-- if range unknown -->
|ceiling ft=24200
|ceiling note|g limits<!-- aerobatic -->
|roll rate=<!-- aerobatic -->
|climb rate ftmin|climb rate note
|time to altitude|wing loading lb/sqft
|wing loading note|fuel consumption lb/mi
|power/mass|more performance
<!--
Armament
-->
|guns=12–18 × .50 in (12.7 mm) machine guns and 75 mm (2.95 in) T13E1 cannon
|bombs=3,000 lb (1,360 kg) bombs
|hardpoints=2,000 lb (900 kg) ventral shackles to hold one external Mark 13 torpedo
|rocketsracks for eight high velocity aircraft rockets (HVAR)
|avionics}} Notable appearances in media See also
Notes
References
Bibliography
* Borth, Christy. Masters of Mass Production. Indianapolis, Indiana: Bobbs-Merrill Co., 1945.
* Bridgman, Leonard, ed. "The North American Mitchell." ''Jane's Fighting Aircraft of World War II. London: Studio, 1946. .
* Caidin, Martin. [https://books.google.com/books?idbT1tfRMvD3IC&pgPA176 Air Force.] New York: Arno Press, 1957.
* Chorlton, Martyn. "Database: North American B-25 Mitchell". Aeroplane, Vol. 41, No. 5, May 2013. pp. 69–86.
* Dorr, Robert F. "North American B-25 Variant Briefing". Wings of Fame, Volume 3, 1996. London: Aerospace Publishing. . . pp. 118–141.
* Green, William. Famous Bombers of the Second World War. New York: Doubleday & Company, 1975. .
* Hagedorn, Dan. "Latin Mitchells: North American B-25s in South America, Part One". Air Enthusiast No. 105, May/June 2003. pp. 52–55.
* Hagedorn, Dan. "Latin Mitchells: North American B-25s in South America, Part Three". Air Enthusiast Mo. 107, September/October 2003. pp. 36–41.
* Hardesty, Von. Red Phoenix: The Rise of Soviet Air Power 1941–1945. Washington, D.C.: Smithsonian Institution, 1991, first edition 1982. .
* Heller, Joseph. Catch 22. New York: Simon & Schuster, 1961. .
* Herman, Arthur. Freedom's Forge: How American Business Produced Victory in World War II, New York: Random House, 2012. .
* Higham, Roy and Carol Williams, eds. Flying Combat Aircraft of USAAF-USAF (Vol. 1). Andrews AFB, Maryland: Air Force Historical Foundation, 1975. .
* Higham, Roy and Carol Williams, eds. Flying Combat Aircraft of USAAF-USAF (Vol. 2). Andrews AFB, Maryland: Air Force Historical Foundation, 1978. .
* Johnsen, Frederick A. North American B-25 Mitchell. Stillwater, Minnesota: Voyageur Press, 1997. .
* Kingwell, Mark. Nearest Thing to Heaven: The Empire State Building and American Dreams. New Haven, Connecticut: Yale University Press, 2007. .
* Kinzey, Bert. B-25 Mitchell in Detail. Carrollton, Texas: Squadron/Signal Publications Inc., 1999. .
* Kit, Mister and Jean-Pierre De Cock. North American B-25 Mitchell (in French). Paris, France: Éditions Atlas, 1980.
*
* McDowell, Ernest R. B-25 Mitchell in Action (Aircraft number 34). Carrollton, Texas: Squadron/Signal Publications Inc., 1978. .
* McDowell, Ernest R. North American B-25A/J Mitchell (Aircam No.22). Canterbury, Kent, UK: Osprey Publications Ltd., 1971. .
* Mizrahi, J.V. North American B-25: The Full Story of World War II's Classic Medium. Hollywood, California: Challenge Publications Inc., 1965.
* Norton, Bill. American Bomber Aircraft Development in World War 2. Hersham, Surrey, UK: Midland Publishing, 2012. .
* Pace, Steve. B-25 Mitchell Units in the MTO. Oxford, UK: Osprey Publishing, 2002. .
* Pace, Steve. Warbird History: B-25 Mitchell. St. Paul, Minnesota: Motorbooks International, 1994. .
* Parker, Dana T. Building Victory: Aircraft Manufacturing in the Los Angeles Area in World War II. Cypress, California: Dana Parker Enterprises, 2013. .
*
* Powell, Albrecht. [http://pittsburgh.about.com/od/transportation/a/b25_bomber.htm "Mystery in the Mon".] 1994
*
* Scutts, Jerry. B-25 Mitchell at War. London: Ian Allan, 1983. .
* Scutts, Jerry. North American B-25 Mitchell. Ramsbury, Marlborough, Wiltshire, UK: Crowood Press, 2001. .
* Skaarup, Harold A. Canadian Warplanes. Bloomington, Indiana: IUniverse, 2009. .
* Swanborough, F.G. and Peter M. Bowers. United States Military Aircraft since 1909. London: Putnam, 1963.
*
* Swanborough, Gordon. North American, An Aircraft Album No. 6. New York: Arco Publishing Company Inc., 1973. .
* Tallman, Frank. Flying the Old Planes. New York: Doubleday and Company, 1973. .
*
* Wolf, William. North American B-25 Mitchell, The Ultimate Look: from Drawing Board to Flying Arsenal. Atglen, Pennsylvania: Schiffer Publishing, 2008. .
* Yenne, Bill. Rockwell: The Heritage of North American. New York: Crescent Books, 1989. .
External links
* [http://www.joebaugher.com/usaf_bombers/b25.html North American B-25 Mitchell] Joe Baugher, American Military Aircraft: US Bomber Aircraft''
*
* [https://web.archive.org/web/20151231204916/http://www.popsci.com/archive-viewer?idoiUDAAAAMBAJ&pg70&query=Vol.+144 I Fly Mitchell's, February 1944] Popular Science article on B-25s in North Africa Theater
* [https://web.archive.org/web/20151231204916/http://www.popsci.com/archive-viewer?idoiUDAAAAMBAJ&pg105&query=Vol.+144 Flying Big Gun, February 1944, Popular Science article on 75 mm cannon mount]
* [https://books.google.com/books?idpCcDAAAAMBAJ&dqpopular+science+june+1941&pg=PA119 Early B-25 model's tail gun position, extremely rare photo]
* A collection photos of the Marine VMB-613 post in the Kwajalein Island at the [http://digital.lib.uh.edu/cdm4/about_collection.php?CISOROOT/p15195coll10 University of Houston Digital Library]
* [https://web.archive.org/web/20120310001635/http://i-ota.net/BarbieIII/ Hi-res spherical panoramas; B-25H: A look inside & out – "Barbie III"]
* [https://www.scribd.com/doc/76131949 (1943) Report No. NA-5785 Temporary Handbook of Erection and Maintenance Instructions for the B-25 H-1-NA Medium Bombardment Airplanes]
* [https://web.archive.org/web/20120601120901/http://lend-lease.airforce.ru/english/articles/akvilyanov/index.htm "The B-25 Mitchell in the USSR", an account of the service history of the Mitchell in the Soviet Union's VVS during World War II]
* [http://www.airspacemag.com/history-of-flight/lake-murrays-mitchell-14033140/?no-ist Lake Murray's Mitchell]
* [https://web.archive.org/web/20160128065604/http://rubicon-foundation.org/Projects/b-25-recovery-and-preservation-project/ B-25 Recovery and Preservation Project] Rubicon Foundation
* [https://digitalcollections.museumofflight.org/items/show/46679 Pilot training manual for the Mitchell bomber B-25] – [https://digitalcollections.museumofflight.org/ The Museum of Flight Digital Collections]
* [https://digitalcollections.museumofflight.org/items/show/46317 B-25 instructor's manual] – [https://digitalcollections.museumofflight.org/ The Museum of Flight Digital Collections]
|2=
|3=
|4=
|5=
}}
B-25
Category:Aircraft first flown in 1940
Category:Gull-wing aircraft
Category:Mid-wing aircraft
Category:1940s United States bomber aircraft
Category:Twin piston-engined tractor aircraft
Category:Aircraft with retractable tricycle landing gear | https://en.wikipedia.org/wiki/North_American_B-25_Mitchell | 2025-04-05T18:26:44.890871 |
4219 | British Open (disambiguation) | The British Open often refers to the Open Championship men's golf tournament.
British Open may also refer to:
British Open (ballroom), the dancing competitions of the Blackpool Dance Festival
British Open (darts), a darts tournament
Women's British Open of golf
British Open Show Jumping Championships
British Open (snooker), an annual tournament which was originally run from 1980 until 2004 before it was revived in 2021.
British Open (real tennis)
British Open Squash Championships
British Open (tennis) or Wimbledon Championships (informally known as The Championships, Wimbledon)
British Open Wheelchair Championships, a wheelchair tennis tournament that Nimrod Bichler has coached some participants of | https://en.wikipedia.org/wiki/British_Open_(disambiguation) | 2025-04-05T18:26:44.898967 |
4224 | Bobby Charlton | <!--many paragraphs have no citations-->
| Bobby Charlton | }}}}
| image = LondonHouseAmsterdam1966 Bobby Charlton.jpg
| caption = Charlton in 1966
| full_name = Robert Charlton
| birth_date
| birth_place = Ashington, Northumberland, England
| death_date
| death_place = Macclesfield, Cheshire, England
| height
| position = Midfielder, forward
| youthyears1 | youthclubs1 East Northumberland Schools
| youthyears2 = 1953–1956
| youthclubs2 = Manchester United
| years1 = 1956–1973
| clubs1 = Manchester United
| caps1 = 606
| goals1 = 199
| years2 = 1974–1975
| clubs2 = Preston North End
| caps2 = 38
| goals2 = 8
| years3 = 1976
| clubs3 = Waterford
| caps3 = 3
| goals3 = 1
| years4 = 1978
| clubs4 = Newcastle KB United
| caps4 = 1
| goals4 = 0
| years5 = 1980
| clubs5 = Perth Azzurri
| caps5 = 3
| goals5 = 2
| years6 = 1980
| clubs6 = Blacktown City
| caps6 = 1
| goals6 = 1
| totalcaps = 652
| totalgoals = 211
| nationalyears1 = 1953
| nationalteam1 = England Schoolboys
| nationalcaps1 = 4
| nationalgoals1 = 5
| nationalyears2 = 1954
| nationalteam2 = England Youth
| nationalcaps2 = 1
| nationalgoals2 = 1
| nationalyears3 = 1958–1960
| nationalteam3 = England U23
| nationalcaps3 = 6
| nationalgoals3 = 5
| nationalyears4 = 1958–1970
| nationalteam4 = England
| nationalcaps4 = 106
| nationalgoals4 = 49
| manageryears1 = 1973–1975
| managerclubs1 = Preston North End
| manageryears2 = 1983
| managerclubs2 = Wigan Athletic (caretaker)
| medaltemplates =
}}
}}
Sir Robert Charlton (11 October 1937 – 21 October 2023) was an English professional footballer who played as an attacking midfielder, left winger or centre-forward. Widely considered one of the greatest players of all time, he was a member of the England team that won the 1966 FIFA World Cup, the year he also won the Ballon d'Or. He finished second in the Ballon d'Or voting in 1967 and 1968. He played almost all of his club football at Manchester United, where he became renowned for his attacking instincts, passing abilities from midfield, ferocious long-range shooting from both left and right foot, fitness, and stamina. He was cautioned only twice in his career; once against Argentina in the 1966 World Cup, and once in a league match against Chelsea. With success at club and international level, he was one of nine players to have won the FIFA World Cup, the European Cup and the Ballon d'Or. His elder brother Jack, who was also in the World Cup–winning team, was a former defender for Leeds United and also for ten years was the manager of the Republic of Ireland.
Born in Ashington, Northumberland, Charlton made his debut for the Manchester United first-team in 1956, aged 18, and soon gained a regular place in the team, during which time he became a Football League First Division champion in 1957 then survived the Munich air disaster of February 1958 after being rescued by teammate Harry Gregg; Charlton was the last survivor of the plane crash from the club. After helping United to win the FA Cup in 1963 and the Football League in 1965 and 1967, he captained the team that won the European Cup in 1968, scoring two goals in the final to help them become the first English club to win the competition. Charlton left Manchester United to become manager of Preston North End for the 1973–74 season. He changed to player-manager the following season. He next accepted a post as a director with Wigan Athletic, then became a member of Manchester United's board of directors in 1984.
At international level, Charlton was named in the England squad for four World Cups (1958, 1962, 1966, and 1970), though he did not play in the first. At the time of his retirement from the England team in 1970, he was the nation's most capped player, having turned out 106 times at the highest level; Bobby Moore overtook this in 1973. Charlton was the long-time record goalscorer for both Manchester United and England, and United's long-time record appearance maker – his total of 758 matches for United took until 2008 to be beaten, when Ryan Giggs did so in that year's Champions League final. With 249 goals, he was the club's highest all-time goalscorer for more than 40 years, until his record was surpassed by Wayne Rooney in 2017. He is also the third-highest goalscorer for England; his record of 49 goals was beaten in 2015 by Rooney, and again by Harry Kane in 2022.Early lifeRobert Charlton was born on 11 October 1937 in Ashington, Northumberland, England, to coal miner Robert "Bob" Charlton (24 May 1909 – April 1982) and Elizabeth Ellen "Cissie" Charlton (née Milburn; 11 November 1912 – 25 March 1996). He was related to several professional footballers on his mother's side of the family: his uncles were Jack Milburn (Leeds United and Bradford City), George Milburn (Leeds United and Chesterfield), Jim Milburn (Leeds United and Bradford Park Avenue) and Stan Milburn (Chesterfield, Leicester City and Rochdale), and legendary Newcastle United and England footballer Jackie Milburn was his mother's cousin. However, Charlton credited much of the early development of his career to his grandfather Tanner and his mother Cissie. His elder brother, Jack, initially worked as a miner before applying to the police, only to also become a professional footballer with Leeds United.
Club career
On 9 February 1953, then a Bedlington Grammar School pupil, Charlton was spotted playing for East Northumberland schools by Manchester United chief scout Joe Armstrong. Charlton went on to play for England Schoolboys and the 15-year-old signed amateur forms with United on 1 January 1953 along with Wilf McGuinness, also aged 15. Initially his mother was reluctant to let him commit to an insecure football career, so he began an apprenticeship as an electrical engineer; however, he went on to turn professional in October 1954.
Charlton became one of the famed Busby Babes, the collection of talented footballers who emerged through the system at Old Trafford in the 1940s, 1950s and 1960s as Matt Busby set about a long-term plan of rebuilding the club after the Second World War. He worked his way through the pecking order of teams, scoring regularly for the youth and reserve sides before he was handed his first team debut against Charlton Athletic in October 1956 where he scored two goals in a game that finished 4–2. At the same time, he was doing his National service with the Royal Army Ordnance Corps in Shrewsbury, where Busby had advised him to apply as it meant he could still play for Manchester United at the weekend. Also doing his army service in Shrewsbury at the same time was his United teammate Duncan Edwards.
Charlton played 17 times for United in that first season, scoring twice on his debut and managing a total of 12 goals in all competitions, and including a hat-trick in a 5–1 away win over Charlton Athletic in February. United won the league championship but were denied the 20th century's first "double" when they controversially lost the 1957 FA Cup Final to Aston Villa. Charlton, still only 19, was selected for the game, which saw United goalkeeper Ray Wood carried off with a broken cheekbone after a clash with Villa centre forward Peter McParland. Charlton was a candidate to go in goal to replace Wood (in the days before substitutes, and certainly before goalkeeping substitutes), but it was teammate Jackie Blanchflower who ended up playing in goal.
Charlton was an established player by the time the next season was fully underway, which saw United, as current League champions, become the first English team to compete in the European Cup. Previously, the Football Association had scorned the competition, but United made progress, reaching the semi-finals where they lost to holders Real Madrid. Their reputation was further enhanced the next season in the 1957–58 European Cup as they reached the quarter-finals to play Red Star Belgrade. In the first leg at home, United won 2–1. The return in Yugoslavia saw Charlton score twice as United stormed 3–0 ahead, although the hosts came back to earn a 3–3 draw. However, United maintained their aggregate lead to reach the last four and were in jubilant mood as they left to catch their flight home, thinking of an important League game against Wolves at the weekend.Munich air disaster
The aeroplane which took the United players and staff home from Zemun Airport needed to stop in Munich to refuel. This was carried out in worsening weather, and by the time the refuelling was complete and the call was made for the passengers to re-board the aircraft, the wintry showers had taken hold and snow had settled heavily on the runway and around the airport. There were two aborted take-offs which led to concern on board, and the passengers were advised by a stewardess to disembark again while a minor technical error was fixed.
The team were back in the airport terminal for barely ten minutes when the call came to reconvene on the plane, and a number of passengers began to feel nervous. Charlton and teammate Dennis Viollet swapped places with Tommy Taylor and David Pegg, who had decided they would be safer at the back of the plane.
The plane clipped the fence at the end of the runway on its next take-off attempt and a wing tore through a nearby house, setting it alight. The wing and part of the tail came off and hit a tree and a wooden hut, the plane spinning along the snow until coming to a halt. It had been cut in half.
Charlton, strapped into his seat, had fallen out of the cabin; when United goalkeeper Harry Gregg (who had somehow got through a hole in the plane unscathed and begun a one-man rescue mission) found him, he thought he was dead. Nevertheless, he grabbed both Charlton and Viollet by their trouser waistbands and dragged them away from the plane, in constant fear that it would explode. Gregg returned to the plane to try to help the appallingly injured Busby and Blanchflower, and when he turned around again, he was relieved to see that Charlton and Viollet, both of whom he had presumed to be dead, had got out of their detached seats and were looking into the wreckage.
Charlton suffered cuts to his head and severe shock, and was in hospital for a week. Seven of his teammates had perished at the scene, including Taylor and Pegg, with whom he and Viollet had swapped seats prior to the fatal take-off attempt. Club captain Roger Byrne was also killed, along with Mark Jones, Billy Whelan, Eddie Colman and Geoff Bent. Duncan Edwards died a fortnight later from the injuries he had sustained. In total, the crash claimed 23 lives. Initially, ice on the wings was blamed, but a later inquiry declared that slush on the runway had made a safe take-off almost impossible.
Of the 44 passengers and crew (including the 17-strong Manchester United squad), 23 people (eight of them Manchester United players) died as a result of their injuries in the crash. Charlton survived with minor injuries. Of the eight other players who survived, two of them were injured so badly that they never played again.
Charlton was the first injured survivor to leave hospital. Harry Gregg and Bill Foulkes were not hospitalised, for they escaped uninjured. He arrived back in England on 14 February 1958, eight days after the crash. As he convalesced with family in Ashington, he spent some time kicking a ball around with local youths, and a famous photograph of him was taken. He was still only 20 years old, yet now there was an expectation that he would help with the rebuilding of the club as Busby's aides tried to piece together what remained of the season.
Between Harry Gregg's death in 2020 and his own in 2023, Charlton was the last living survivor of the crash.
Resuming his career
Charlton returned to playing in a kickabout with local youths first and then in a practice match on 25 February. He initially said "I felt as slow as an old cart horse" but then his vigour returned and he then said "I feel fine and would like to play in the cup game at West Brom". This was an FA Cup tie against West Bromwich Albion on 1 March; the game was a draw and United won the replay 1–0. Not unexpectedly, United went out of the European Cup to A.C. Milan in the semi-finals to a 5–2 aggregate defeat and fell behind in the League. Yet somehow they reached their second consecutive FA Cup final, and the big day at Wembley coincided with Busby's return to work. However, Nat Lofthouse scored twice to give Bolton Wanderers a 2–0 win.
Further success with Manchester United came at last when they beat Leicester City 3–1 in the FA Cup final of 1963, with Charlton finally earning a winners' medal in his third final. Busby's post-Munich rebuilding programme continued to progress, with two League championships within three seasons, in 1965 and 1967. A successful (though trophyless) season with Manchester United saw him take the honours of Football Writers' Association Footballer of the Year and European Footballer of the Year into the competition.
'''" statue of Charlton (right) alongside Denis Law (centre) and George Best (left) outside Old Trafford]]
Manchester United reached the 1968 European Cup Final, ten seasons after Munich. Even though other clubs had taken part in the competition in the intervening decade, the team which got to this final was still the first English side to do so. On a highly emotional night at Wembley, Charlton scored twice in a 4–1 win after extra time against Benfica and, as United captain, lifted the trophy.
During the early 1970s, Manchester United were no longer competing among the top teams in England, and at several stages were battling against relegation. At times, Charlton was not on speaking terms with United's other superstars, George Best and Denis Law, and Best refused to play in Charlton's testimonial match against Celtic, saying that "to do so would be hypocritical". Charlton left Manchester United at the end of the 1972–73 season, having scored 249 goals and set a club record of 758 appearances, a record which Ryan Giggs broke in the 2008 UEFA Champions League Final.
Charlton's last game for Manchester United was against Chelsea at Stamford Bridge on 28 April 1973. Chelsea won the match 1–0. Coincidentally, this day also marked his brother Jackie's last appearance as well (for Leeds). Charlton's final goal for the club came a month earlier, on 31 March, in a 2–0 win at Southampton, also in the First Division.
Charlton was the subject of an episode of This Is Your Life in 1969 when he was surprised by Eamonn Andrews at The Sportsman's Club in central London.
International career
at Empire Stadium, London 11 April 1959. From the left, standing: Ronnie Clayton, Billy Wright (captain), Don Howe, Eddie Hopkinson, Ron Flowers, Graham Shaw, Joe Shaw; front row: Bryan Douglas, Peter Broadbent, Bobby Charlton, Johnny Haynes and Doug Holden.]]
Charlton's emergence as the country's leading young football talent was completed when he was called up to join the England squad for a British Home Championship game against Scotland at Hampden Park on 19 April 1958, just over two months after he had survived the Munich air disaster.
Charlton was handed his debut as England romped home 4–0, with the new player gaining even more admirers after scoring a magnificent thumping volley dispatched with authority after a cross by the left winger Tom Finney. He scored both goals in his second game as England beat Portugal 2–1 in a friendly at Wembley, and overcame obvious nerves on a return to Belgrade to play his third match against Yugoslavia; England lost that game 5–0 and Charlton played poorly.
Charlton was selected for the squad which competed at the 1958 World Cup in Sweden, but he did not play.
In 1959, Charlton scored a hat-trick as England demolished the US 8–1; and his second England hat-trick came in 1961 in an 8–0 thrashing of Mexico. He also managed to score in every British Home Championship tournament he played in except 1963 in an association with the tournament that lasted from 1958 to 1970 and included 16 goals and 10 tournament victories (five shared).
1962 World Cup
'', 27 June 1962]]
Charlton played in qualifiers for the 1962 World Cup in Chile against Luxembourg and Portugal and was named in the squad for the finals themselves. His goal in the 3–1 group win over Argentina was his 25th for England in just 38 appearances, and he was still only 24 years old; but his individual success could not be replicated by that of the team, which was eliminated in the quarter-final by Brazil, who went on to win the tournament.
By now, England were coached by Alf Ramsey, who had managed to gain sole control of the recruitment and team selection procedure from the committee-based call-up system which had lasted up to the previous World Cup. Ramsey had already cleared out some of the older players who had been reliant on the loyalty of the committee for their continued selection. A hat-trick in the 8–1 rout of Switzerland in June 1963 took Charlton's England goal tally to 30, equalling the record jointly held by Tom Finney and Nat Lofthouse; Charlton's 31st goal, against Wales in October the same year, gave him the record alone.
Charlton's role was developing from traditional inside-forward to what today would be termed an attacking midfield player, with Ramsey planning to build the team for the 1966 World Cup around him. When England beat the USA 10–0 in a friendly on 27 May 1964, he scored one goal, his 33rd at senior level for England.
and Bobby Charlton, December 1964]]
His goals became a little less frequent, and indeed Jimmy Greaves, playing purely as a striker, overtook his England tally in October 1964. Nevertheless, Charlton was still scoring and creating freely, and as the tournament was about to start he was expected to become one of its stars and galvanise his established reputation as one of the world's best footballers.
1966 World Cup
England drew the opening game of the tournament 0–0 with Uruguay. Charlton scored the first goal in the 2–0 win over Mexico. This was followed by an identical scoreline against France, allowing England to qualify for the quarter-finals, where they defeated Argentina 1–0. The game was the only international match in which Charlton received a caution.
They faced Portugal in the semi-finals. This turned out to be one of Charlton's most important games for England. Charlton opened the scoring with a crisp side-footed finish after a run by Roger Hunt had forced the Portuguese goalkeeper out of his net; his second was a sweetly struck shot after a run and pull-back from Geoff Hurst. Charlton and Hunt were now England's joint-highest scorers in the tournament with three each, and a final against West Germany beckoned.
The final turned out to be one of Charlton's quieter days; he and a young Franz Beckenbauer effectively marked each other out of the game. England won 4–2 after extra time, with the scores tied at 2–2 after 90 minutes, and England lifted the World Cup trophy for the first time.
Euro 1968
Charlton's next England game was his 75th, as England beat Northern Ireland; after two more appearances he became England's second most-capped player, behind the veteran Billy Wright, who was approaching his 100th match when Charlton was starting out and ended with 105 caps.
Weeks later he scored his 45th England goal in a friendly against Sweden, breaking the record of 44 set the previous year by Jimmy Greaves. He was then in the England team which made it to the semi-finals of the 1968 European Championships, where they were knocked out by Yugoslavia in Florence. During the match Charlton struck a Yugoslav post. England defeated the Soviet Union 2–0 in the third place match.
In 1969, Charlton was appointed an OBE for services to football. More milestones followed as he won his 100th England cap on 21 April 1970 against Northern Ireland, and was made captain by Ramsey for the occasion. Inevitably, he scored; this was his 48th goal for his country – his 49th and final goal followed a month later in a 4–0 win over Colombia during a warm-up tour for the 1970 World Cup, designed to get the players adapted to altitude conditions. Charlton's inevitable selection by Ramsey for the tournament made him the first – and still, to date, only – England player to feature in four World Cup squads.
1970 World Cup
of Charlton with England. Issued by Panini for the 1970 World Cup]]
Shortly before the World Cup, Charlton was involved in the Bogotá Bracelet incident in which he and Bobby Moore were accused of stealing a bracelet from a jewellery store. Moore was later arrested and detained for four days before being granted a conditional release, while Charlton was not arrested.
England began the tournament with two victories in the group stages, plus a memorable defeat against Brazil. Charlton played in all three, though was substituted for Alan Ball in the final game of the group against Czechoslovakia. Ramsey, confident of victory and progress to the quarter-final, wanted Charlton to rest.
England reached the last eight where they again faced West Germany. With England leading 2–1, Ramsey replaced Charlton with Colin Bell in the 69th minute: Germany went on to win 3–2 after extra time. England were eliminated and, after a record 106 caps and 49 goals, Charlton decided to end his international career at the age of 32. On the flight home from Mexico, he asked Ramsey not to consider him again. His brother Jack, two years his senior but 71 caps his junior, did likewise.
Charlton's caps record lasted until 1973, when Bobby Moore overtook him; as of October 2023, he lies seventh in the all-time England appearances list behind Moore, Wayne Rooney, Ashley Cole, Steven Gerrard, David Beckham and Peter Shilton, whose own England career began in the first game after Charlton's had ended. Charlton's goalscoring record was surpassed by Wayne Rooney on 8 September 2015, when Rooney scored a penalty in a 2–0 win over Switzerland in a qualifying match for UEFA Euro 2016.
Style of play
In his early years as a winger who played on the outside left, Charlton possessed great speed and agility. As he matured, Charlton was placed in an offensive midfield role where he flourished as a player. In his prime, Charlton was considered to be one of the greatest players in the world, being able to dictate a game with his accurate passing, and possessing a powerful shot with either foot, often scoring goals from a distance. Charlton also stood out for his stamina, mentality, leadership and modesty, never arguing with referees or opponents.
Longtime Manchester United manager Matt Busby said of Charlton: "There has never been a more popular footballer. He was as near perfection as man and player as it is possible to be." England national team coach Alf Ramsey remarked: "He was one of the greatest players I have ever seen, very much the linchpin of the 1966 team. Early in my management, I knew I had to find a role suitable to Bobby’s unique talents. He wasn’t just a great goalscorer, with a blistering shot using either foot. Bobby was a player who could also do his share of hard work."
Management career and directorships
and his own land mine clearance charity, Find a Better Way, in 2008]]
Charlton became the manager of Preston North End in 1973, signing his former United and England teammate Nobby Stiles as player-coach. His first season ended in relegation, and although he began playing again, he left Preston early in the 1975–76 season after a disagreement with the board over the transfer of John Bird to Newcastle United. He was appointed a CBE that year and began a casual association with BBC for punditry on matches, which continued for many years. In early 1976, he scored once in three league appearances for Waterford United. He also made a handful of appearances for Australian clubs Newcastle KB United, Perth Azzurri and Blacktown City.
Charlton joined Wigan Athletic as a director, and was briefly caretaker manager there in 1983. He then spent some time playing in South Africa. He also built up several businesses in areas such as travel, jewellery and hampers, and ran soccer schools in the UK, the US, Canada, Australia and China. In 1984, he was invited to become member of the board of directors at Manchester United, partly because of his football knowledge and partly because it was felt that the club needed a "name" on the board after the resignation of Sir Matt Busby. In June 2005, when the American Glazer family bought Manchester United amidst fan opposition, Charlton apologised to the new owners: "I tried to explain they couldn't ignore the fans, who are so emotionally involved in the club, but who sometimes do go a bit too far".Personal life and retirementCharlton met his wife, Norma Ball, at an ice rink in Manchester in 1959 and they married in 1961. They had two daughters, Suzanne and Andrea. Suzanne was a weather forecaster for the BBC during the 1990s. They went on to have grandchildren, including Suzanne's son Robert, who is named in honour of his grandfather.
In 2007, while publicising his forthcoming autobiography, Charlton revealed that he had a long-running feud with his brother Jack. They rarely spoke to each other after a falling-out between his wife Norma and his mother Cissie (who died in 1996 at the age of 83). Bobby Charlton did not see his mother after 1992 as a result of the feud.
Jack presented him with his BBC Sports Personality of the Year Lifetime Achievement Award on 14 December 2008. He said that he was "knocked out" as he was presented the award by his brother. He received a standing ovation as he stood waiting for his prize.
Charlton helped to promote Manchester's bids for the 1996 and 2000 Olympic Games and the 2002 Commonwealth Games, England's bid for the 2006 World Cup and London's successful bid for the 2012 Summer Olympics. He received a knighthood in 1994 and was an Inaugural Inductee to the English Football Hall of Fame in 2002. On accepting his award, he commented: "I'm really proud to be included in the National Football Museum's Hall of Fame. It's a great honour. If you look at the names included I have to say I couldn't argue with them. They are all great players and people I would love to have played with." He was also the (honorary) president of the National Football Museum, an organisation about which he said: "I can't think of a better museum anywhere in the world."
On 2 March 2009, Charlton was given the freedom of the city of Manchester. He stated: "I'm just so proud, it's fantastic. It's a great city. I have always been very proud of it."
Charlton was involved in a number of charitable activities, including fund raising for cancer hospitals. After visits to Bosnia and Cambodia, Charlton became involved in the cause of land mine clearance, and supported the Mines Advisory Group as well as founding his own charity, The Sir Bobby Charlton Foundation (formerly Find a Better Way), which funds research into improved civilian landmine clearance.
In January 2011, Charlton was voted the fourth-greatest Manchester United player of all time by the readers of Inside United and ManUtd.com, behind Ryan Giggs (who topped the poll), Eric Cantona and George Best.
He was a member of the Laureus World Sports Academy. On 6 February 2012, Charlton was taken to hospital after falling ill, and subsequently had a gallstone removed. This prevented him from collecting a Lifetime Achievement Award at the Laureus World Sports Awards.
On 15 February 2016, Manchester United announced the South Stand of Old Trafford would be renamed in honour of Sir Bobby Charlton. The unveiling took place at the home game against Everton on 3 April 2016.
In 2015, he received a Honorary Doctorate from the University of Bath.
In October 2017, Charlton had a pitch named after him at St George's Park National Football Centre in Burton-upon-Trent.
In November 2020, it was revealed that Charlton had been diagnosed with dementia and as a result, he withdrew from public life.
Death
Charlton died at Macclesfield District General Hospital in Macclesfield, Cheshire, on 21 October 2023, at the age of 86, from complications of a fall he sustained at the nursing home where he resided; at the subsequent inquest, the coroner recorded his cause of death as "trauma in the lungs, a fall and dementia". His death leaves Sir Geoff Hurst as the last surviving English player of the 1966 World Cup final.
Manchester United paid tribute to Charlton at their Champions League match against Copenhagen at Old Trafford three days later in a number of ways. First, United's players wore black armbands, and manager Erik ten Hag was flanked by Alex Stepney and U-21 captain Dan Gore before ten Hag laid a wreath and a minute's silence was observed before the match began. Another wreath was also laid in Charlton's seat in the director's box. In addition, the cover of United's match programme, the United Review, featured Charlton on the front, and supporters laid flowers and scarves at the United Trinity.
The funeral took place on 13 November. The main ceremony was at Manchester Cathedral but the procession called first at the Old Trafford stadium before going to the city centre. Crowds lined the streets and there were about a thousand guests at the service, including Prince William, Alex Ferguson and many others associated with the club. Elegies were read by David Gill and Charlton's grandson William Balderston and there was a musical tribute of "How Great Thou Art" sung by Russell Watson.
In popular culture
*In the episode "Taking Liberties" of the NBC American sitcom Frasier, Daphne Moon (Jane Leeves), who is from Manchester, mentions that one of her uncles tried fanatically to get Charlton's autograph, "until Bobby cracked him over the head with a can of lager. Twelve stitches, and he still has the can!"
*In the 2011 film United, centred on the successes of the Busby Babes and the decimation of the team in the Munich crash, Charlton was portrayed by actor Jack O'Connell.
*In the episode "Munich Air Disaster" of the air crash documentary Mayday, Charlton was interviewed as a survivor in the show, alongside Harry Gregg.
*In August 2024, Endrick, a rising star striker from Brazil who plays for Real Madrid, claimed Bobby Charlton was one of his idols and favourite players during a promotional interview with New Balance.
Career statistics
Club
{| class"wikitable" style"text-align:center"
|+ Appearances and goals by club, season and competition
|-
!rowspan="2"|Club
!rowspan="2"|Season
!colspan="3"|League
!colspan="2"|National cup
!colspan="2"|League cup
!colspan="2"|Continental
!colspan="2"|Other
!colspan="2"|Total
|-
!Division!!Apps!!Goals!!Apps!!Goals!!Apps!!Goals!!Apps!!Goals!!Apps!!Goals!!Apps!!Goals
|-
|rowspan="18"|Manchester United
|1956–57
|First Division
|14||10||2||1||colspan="2"|—||1||1||0||0||17||12
|-
|1957–58
|First Division
|21||8||7||5||colspan="2"|—||2||3||0||0||30||16
|-
|1958–59
|First Division
|38||29||1||0||colspan"2"|—||colspan"2"|—||colspan="2"|—||39||29
|-
|1959–60
|First Division
|37||18||3||3||colspan"2"|—||colspan"2"|—||colspan="2"|—||40||21
|-
|1960–61
|First Division
|39||21||3||0||0||0||colspan"2"|—||colspan"2"|—||42||21
|-
|1961–62
|First Division
|37||8||6||2||colspan"2"|—||colspan"2"|—||colspan="2"|—||43||10
|-
|1962–63
|First Division
|28||7||6||2||colspan"2"|—||colspan"2"|—||colspan="2"|—||34||9
|-
|1963–64
|First Division
|40||9||7||2||colspan="2"|—||6||4||1||0||54||15
|-
|1964–65
|First Division
|41||10||7||0||colspan"2"|—||11||8||colspan"2"|—||59||18
|-
|1965–66
|First Division
|38||16||7||0||colspan="2"|—||8||2||1||0||54||18
|-
|1966–67
|First Division
|42||12||2||0||0||0||colspan"2"|—||colspan"2"|—||44||12
|-
|1967–68
|First Division
|41||15||2||1||colspan="2"|—||9||2||1||2||53||20
|-
|1968–69
|First Division
|32||5||6||0||colspan="2"|—||8||2||2||0||48||7
|-
|1969–70
|First Division
|40||12||9||1||8||1||colspan"2"|—||colspan"2"|—||57||14
|-
|1970–71
|First Division
|42||5||2||0||6||3||colspan"2"|—||colspan"2"|—||50||8
|-
|1971–72
|First Division
|40||8||7||2||6||2||colspan"2"|—||colspan"2"|—||53||12
|-
|1972–73
|First Division
|36||6||1||0||4||1||colspan"2"|—||colspan"2"|—||41||7
|-
!colspan="2"|Total
!606!!199!!78!!19!!24!!7!!45!!22!!5!!2!!758!!249
|-
|Preston North End
|1974–75
|Third Division
|38||8||4||1||3||1||colspan"2"|—||colspan"2"|—||45||10
|-
|Waterford United
|1975–76
|League of Ireland
|3||1||1||0||0||0||colspan"2"|—||colspan"2"|—||4||1
|-
|Newcastle KB United
|1978
|National Soccer League
|1||0||0||0||0||0||colspan"2"|—||colspan"2"|—||1||0
|-
|Perth Azzurri
|1979
|National Premier Leagues Western Australia
|3||2||0||0||0||0||colspan"2"|—||colspan"2"|—||3||2
|-
|Blacktown City
|1980
|National Soccer League
|1||1||0||0||0||0||colspan"2"|—||colspan"2"|—||1||1
|-
!colspan="3"|Career total
!652!!211!!83!!20!!27!!8!!45!!22!!5!!2!!812!!263
|}
International
{| class"wikitable" style"text-align:center"
|+ Appearances and goals by national team and year
|-
!National team!!width"60"|Year!!width"40"|Apps!!width="40"|Goals
|-
|rowspan"13"|England
|1958
|6||7
|-
|1959
|7||5
|-
|1960
|8||6
|-
|1961
|9||6
|-
|1962
|8||1
|-
|1963
|10||6
|-
|1964
|8||2
|-
|1965
|5||2
|-
|1966
|15||6
|-
|1967
|4||2
|-
|1968
|8||3
|-
|1969
|9||1
|-
|1970
|9||2
|-
!colspan="2"|Total
!106!!49
|}
Honours
Manchester United Youth
*FA Youth Cup: 1953–54, 1954–55, 1955–56
Manchester United
*Football League First Division: 1956–57, 1964–65, 1966–67
*FA Cup: 1962–63; runner-up: 1956–57, 1957–58
*FA Charity Shield: 1965, 1967
*European Cup: 1967–68
England 1966, 1967, 1968
*FWA Footballer of the Year: 1965–66
*FIFA World Cup Golden Ball: 1966
*FIFA World Cup All-Star Team: 1966, 1970
*Ballon d'Or: 1966; runner-up: 1967, 1968
*PFA Merit Award: 1974
*FWA Tribute Award: 1989
*FIFA World Cup All-Time Team: 1994
*Football League 100 Legends: 1998
*English Football Hall of Fame: 2002
*FIFA 100: 2004
*UEFA Golden Jubilee Poll: 14th
*BBC Sports Personality of the Year Lifetime Achievement Award: 2008
*UEFA President's Award: 2008
*Laureus Lifetime Achievement Award: 2012
*FIFA Player of the Century:
**FIFA internet vote: 16th
**IFFHS vote: 10th
*World Soccer The Greatest Players of the 20th century: 12th
*IFFHS Legends
Orders and special awards
*Officer of the Most Excellent Order of the British Empire (OBE): 1969
*Commander of the Most Excellent Order of the British Empire (CBE): 1974
*Knight Bachelor: 1994
*Order of the Rising Sun, 4th class: 2012
See also
* List of men's footballers with 100 or more international caps
Bibliography
*
* |url-accessregistration |url=https://archive.org/details/autobiography0000char}}
* ReferencesExternal links
*[http://www.ifhof.com/hof/charlton.asp International Football Hall of Fame: Bobby Charlton]
*[http://www.planetworldcup.com/LEGENDS/charlton.html Planet World Cup: Bobby Charlton]
*[http://www.stretford-end.com/united-articles/bobby-charlton-legend.html A fans view: Bobby Charlton – legend]
*[https://www.bbc.co.uk/archive/football_legends/11919.shtml BBC radio interview with Bobby Charlton, 1999]
*[https://web.archive.org/web/20141112115423/http://siralexfergusonway.com/2014/11/11/club-legends-1-sir-bobby-charlton/ Sir Alex Ferguson Way - Club Legends - Sir Bobby Charlton]
*
}}
}}
}}
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Category:Wigan Athletic F.C. managers | https://en.wikipedia.org/wiki/Bobby_Charlton | 2025-04-05T18:26:44.970685 |
4227 | Barry Lyndon | | starring =
| narrator = Michael Hordern
| cinematography = John Alcott
| editing = Tony Lawson
| studio =
| distributor =
| language = English
| budget $11 million
| gross $31.5 million Narrated by Michael Hordern, and starring Ryan O'Neal, Marisa Berenson, Patrick Magee, Leonard Rossiter and Hardy Krüger, the film recounts the early exploits and later unravelling of an 18th-century Anglo-Irish rogue and gold digger who marries a rich widow to climb the social ladder and assume her late husband's aristocratic position.
Kubrick began production on Barry Lyndon after his 1971 film A Clockwork Orange. He had originally intended to direct a biopic on Napoleon, but lost his financing because of the commercial failure of the similar 1970 Dino De Laurentiis-produced Waterloo. Kubrick eventually directed Barry Lyndon, set partially during the Seven Years' War, utilising his research from the Napoleon project. Filming began in December 1973 and lasted roughly eight months, taking place in England, Ireland, and Germany.
The film's cinematography has been described as ground-breaking. Especially notable are the long double shots, usually ended with a slow backwards zoom, the scenes shot entirely in candlelight, and the settings based on William Hogarth paintings. The exteriors were filmed on location in England, Ireland, and Germany, with the interiors shot mainly in London. and politics (Kubrick feared that he might be an IRA hostage target).
Production
Development
After completing post production on 2001: A Space Odyssey, Kubrick resumed planning a film about Napoleon. During pre-production, Sergei Bondarchuk and Dino De Laurentiis's Waterloo was released, and failed at the box office. Reconsidering, Kubrick's financiers pulled funding, and he turned his attention towards a film adaptation of Anthony Burgess's 1962 novel A Clockwork Orange. Subsequently, Kubrick showed an interest in Thackeray's Vanity Fair but dropped the project when a serialised version for television was produced. He told an interviewer, "At one time, Vanity Fair interested me as a possible film but, in the end, I decided the story could not be successfully compressed into the relatively short time-span of a feature film ... as soon as I read Barry Lyndon I became very excited about it."
Having earned Oscar nominations for Dr. Strangelove, 2001: A Space Odyssey and A Clockwork Orange, Kubrick's reputation in the early 1970s was that of "a perfectionist auteur who loomed larger over his movies than any concept or star". His studio—Warner Bros.—was therefore "eager to bankroll" his next project, which Kubrick kept "shrouded in secrecy" from the press partly due to the furore surrounding the controversially violent A Clockwork Orange (particularly in the UK) and partly due to his "long-standing paranoia about the tabloid press."
In 1972 Kubrick finally set his sights on Thackeray's 1844 "satirical picaresque about the fortune-hunting of an Irish rogue," The Luck of Barry Lyndon, the setting of which allowed Kubrick to take advantage of the copious period research he had done for the now-aborted Napoleon. and be shot largely in Ireland.
Kubrick made several changes to the plot, including the addition of the final duel.Principal photographyPrincipal photography lasted 300 days, from spring 1973 through to early 1974, with a break for Christmas. Kubrick initially wished to film the entire production near his home in Borehamwood, but Ken Adam convinced him to relocate the shoot to Ireland.
Many of the exteriors were shot in Ireland, playing "itself, England, and Prussia during the Seven Years' War."
Several of the interior scenes were filmed in Powerscourt House, an 18th-century mansion in County Wicklow. The house was destroyed in an accidental fire several months after filming (November 1974), so the film serves as a record of the lost interiors, particularly the "Saloon" which was used for more than one scene. The Wicklow Mountains are visible, for example, through the window of the saloon during a scene set in Berlin. Other locations included Kells Priory, County Kilkenny (the English Redcoat encampment); Huntington Castle, County Carlow (exterior) and Dublin Castle, County Dublin (the chevalier's home). Some exterior shots were also filmed at Waterford Castle, County Waterford (now a luxury hotel and golf course) and Little Island, Waterford. Moorstown Castle in County Tipperary also featured. Several scenes were filmed at Castletown House in Celbridge, County Kildare; outside Carrick-on-Suir, County Tipperary, and at Youghal, County Cork.
The filming took place in the backdrop of some of the most intense years of the Troubles in Ireland, during which the Provisional Irish Republican Army (Provisional IRA) was waging an armed campaign in order to unite the island. On 30 January 1974, while filming in Dublin City's Phoenix Park, shooting had to be cancelled due to the chaos caused by 14 bomb threats.
Cinematography
were used for Barry Lyndon to allow filming using only natural light.]]
, Shortly After the Marriage (scene two of six).]]
The film, as with "almost every Kubrick film", is a "showcase for [a] major innovation in technique." These super-fast lenses "with their huge aperture (the film actually features the lowest f-stop in film history) and fixed focal length" were problematic to mount, and were extensively modified into three versions by Cinema Products Corp. for Kubrick to gain a wider angle of view, with input from optics expert Richard Vetter of Todd-AO. This allowed Kubrick and Alcott to shoot scenes lit in candlelight to an average lighting volume of only three candela, "recreating the huddle and glow of a pre-electrical age."
Despite such slight tinting effects, this method of lighting not only gave the look of natural daylight coming in through the windows, but it also protected the historic locations from the damage caused by mounting the lights on walls or ceilings and the heat from the lights. This helped the film "fit ... perfectly with Kubrick's gilded-cage aesthetic – the film is consciously a museum piece, its characters pinned to the frame like butterflies."
|align="center"|99
|}
Certifications
ReceptionContemporaneousThe film "was not the commercial success Warner Bros. had been hoping for" within the United States, Ultimately, the film grossed a worldwide total of $31.5 million on an $11 million budget. Vincent Canby of The New York Times called the film "another fascinating challenge from one of our most remarkable, independent-minded directors." Gene Siskel of the Chicago Tribune gave the film three and a half stars out of four and wrote "I found Barry Lyndon to be quite obvious about its intentions and thoroughly successful in achieving them. Kubrick has taken a novel about a social class and has turned it into an utterly comfortable story that conveys the stunning emptiness of upper-class life only 200 years past." He ranked the film fifth on his year-end list of the best films of 1975.
Charles Champlin of the Los Angeles Times called it "the motion picture equivalent of one of those very large, very heavy, very expensive, very elegant and very dull books that exist solely to be seen on coffee tables. It is ravishingly beautiful and incredibly tedious in about equal doses, a succession of salon quality still photographs—as often as not very still indeed." The Washington Post wrote, "It's not inaccurate to describe 'Barry Lyndon' as a masterpiece, but it's a deadend masterpiece, an objet d'art rather than a movie. It would be more at home, and perhaps easier to like, on the bookshelf, next to something like 'The Age of the Grand Tour,' than on the silver screen." Pauline Kael of The New Yorker wrote that "Kubrick has taken a quick-witted story" and "controlled it so meticulously that he's drained the blood out of it," adding, "It's a coffee-table movie; we might as well be at a three-hour slide show for art-history majors."
This "air of disappointment" On Metacritic, the film has a weighted average score of 89 out of 100 based on reviews from 21 critics, indicating "universal acclaim". Roger Ebert added the film to his 'Great Movies' list on 9 September 2009 and increased his original rating from three and a half stars to four, writing, "Stanley Kubrick's Barry Lyndon, received indifferently in 1975, has grown in stature in the years since and is now widely regarded as one of the master's best. It is certainly in every frame a Kubrick film: technically awesome, emotionally distant, remorseless in its doubt of human goodness."
The Village Voice ranked the film at number 46 in its Top 250 "Best Films of the Century" list in 1999, based on a poll of critics. Director Martin Scorsese has named Barry Lyndon as his favourite Kubrick film, and it is also one of Lars von Trier's favourite films. Barry Lyndon was included on Times All-Time 100 best movies list. In the 2012 Sight & Sound Greatest Films of All Time poll, Barry Lyndon placed 19th in the directors' poll and 59th in the critics' poll. The film ranked 27th in BBC's 2015 list of the 100 greatest American films. In the 2022 Sight & Sound Greatest Films of All Time poll, Barry Lyndon placed 12th in the directors' poll and 45th in the critics' poll.
In a list compiled by The Irish Times critics Tara Brady and Donald Clarke in 2020, Barry Lyndon was named the greatest Irish film of all time.
The Japanese filmmaker Akira Kurosawa cited the movie as one of his 100 favorite films.Awards and nominations{| class"wikitable plainrowheaders sortable"
|-
! scope="col"| Award
! scope="col"| Category
! scope="col"| Recipient
! scope="col"| Result
|-
! scope"row" rowspan"7"| Academy Awards
| Best Picture
|rowspan=3| Stanley Kubrick
|
|-
| Best Director
|
|-
| Best Adaptated Screenplay
|
|-
| Best Art Direction
| Ken Adam, Roy Walker,Vernon Dixon
|
|-
| Best Cinematography
| John Alcott
|
|-
| Best Costume Design
| Milena Canonero and Ulla-Britt Söderlund
|
|-
| Best Original Score
| Leonard Rosenman
|
|-
! scope"row" rowspan"5"| British Academy Film Awards
| colspan="2"| Best Film
|
|-
| Best Director
| Stanley Kubrick
|
|-
| Best Art Direction
| Ken Adam
|
|-
| Best Cinematography
| John Alcott
|
|-
| Best Costume Design
| Milena Canonero and Ulla-Britt Söderlund
|
|-
! scope="row"| British Society of Cinematographers
| Best Cinematography
| John Alcott
|
|-
! scope="row"| César Awards
| Best Foreign Film
| Stanley Kubrick
|
|-
! scope="row"| Directors Guild of America Awards
| Outstanding Directing – Feature Film
| Stanley Kubrick
|
|-
! scope"row" rowspan"2"| Golden Globe Awards
| colspan="2"| Best Motion Picture – Drama
|
|-
| Best Director
| Stanley Kubrick
|
|-
! scope"row"| Los Angeles Film Critics Association Awards
| Best Cinematography
| John Alcott
|
|-
! scope"row" rowspan"3"| National Board of Review Awards
| colspan="2"| Best Film
|
|-
| colspan="2"| Top Ten Films
|
|-
| Best Director
| Stanley Kubrick
|
|-
! scope"row"| National Society of Film Critics Awards
| Best Cinematography
| John Alcott
|
|-
! scope="row"| Sant Jordi Awards
| Best Foreign Film
| Stanley Kubrick
|
|-
! scope="row"| Writers Guild of America Awards
| Best Drama Adapted from Another Medium
| Stanley Kubrick
|
|}
See also
* List of American films of 1975
* Overlord – the 1975 Stuart Cooper WWII film John Alcott also worked on
* Cinema of Ireland
Notes
References
Further reading
* Tibbetts, John C., and James M. Welsh, eds. The Encyclopedia of Novels into Film (2nd ed. 2005) pp 23–24.
External links
*
*
*
*
*
* [https://www.criterion.com/current/posts/5047-barry-lyndon-time-regained Barry Lyndon: Time Regained] an essay by Geoffrey O'Brien at the Criterion Collection
* [http://www.dailyscript.com/scripts/BarryLyndon.html Screenplay of Barry Lyndon (18 February 1973)] at Daily script.
* [http://www.indelibleinc.com/kubrick/films/blyndon/pressbook2.html Barry Lyndon Press Kit] at Indelible Inc.
* [http://www.visual-memory.co.uk/amk/ The Kubrick Site], a "non-profit resource archive for documentary materials", including essays and articles.
* [http://somecamerunning.typepad.com/some_came_running/2011/06/test.html Stanley Kubrick’s letter to projectionists on Barry Lyndon] at Some Came Running.
Category:1975 drama films
Category:1975 films
Category:1970s American films
Category:1970s British films
Category:1970s English-language films
Category:1970s German films
Category:1970s Irish films
Category:1970s war drama films
Category:American films about gambling
Category:American war drama films
Category:British films about gambling
Category:British war drama films
Category:Cultural depictions of George III
Category:English-language war drama films
Category:Films about adultery
Category:Films based on British novels
Category:Films based on works by William Makepeace Thackeray
Category:Films directed by Stanley Kubrick
Category:Films produced by Stanley Kubrick
Category:Films with screenplays by Stanley Kubrick
Category:Films set in England
Category:Films set in Ireland
Category:Films set in Prussia
Category:Films set in the 1750s
Category:Films set in 1763
Category:Films set in 1773
Category:Films set in the 1780s
Category:Films set in the 18th century
Category:Films shot in County Wicklow
Category:Films shot in County Waterford
Category:Films shot in Dublin (city)
Category:Films shot at EMI-Elstree Studios
Category:Films shot in Germany
Category:Films shot in the Republic of Ireland
Category:Films shot in Scotland
Category:Films shot in North Yorkshire
Category:Films shot in Oxfordshire
Category:Films shot in Somerset
Category:Films shot in West Sussex
Category:Films shot in Wiltshire
Category:Films that won the Best Costume Design Academy Award
Category:Films that won the Best Original Score Academy Award
Category:Films whose art director won the Best Art Direction Academy Award
Category:Films whose cinematographer won the Best Cinematography Academy Award
Category:Films whose director won the Best Direction BAFTA Award
Category:Saturn Award–winning films
Category:Seven Years' War films
Category:Warner Bros. films | https://en.wikipedia.org/wiki/Barry_Lyndon | 2025-04-05T18:26:45.008785 |
4230 | Cell (biology) | The cell is the basic structural and functional unit of all forms of life. Every cell consists of cytoplasm enclosed within a membrane; many cells contain organelles, each with a specific function. The term comes from the Latin word meaning 'small room'. Most cells are only visible under a microscope. Cells emerged on Earth about 4 billion years ago. All cells are capable of replication, protein synthesis, and motility.
Cells are broadly categorized into two types: eukaryotic cells, which possess a nucleus, and prokaryotic cells, which lack a nucleus but have a nucleoid region. Prokaryotes are single-celled organisms such as bacteria, whereas eukaryotes can be either single-celled, such as amoebae, or multicellular, such as some algae, plants, animals, and fungi. Eukaryotic cells contain organelles including mitochondria, which provide energy for cell functions, chloroplasts, which in plants create sugars by photosynthesis, and ribosomes, which synthesise proteins.
Cells were discovered by Robert Hooke in 1665, who named them after their resemblance to cells inhabited by Christian monks in a monastery. Cell theory, developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann, states that all organisms are composed of one or more cells, that cells are the fundamental unit of structure and function in all living organisms, and that all cells come from pre-existing cells.
Cell types
Cells are broadly categorized into two types: eukaryotic cells, which possess a nucleus, and prokaryotic cells, which lack a nucleus but have a nucleoid region. Prokaryotes are single-celled organisms, whereas eukaryotes can be either single-celled or multicellular.
Prokaryotic cells
cell]]
Prokaryotes include bacteria and archaea, two of the three domains of life. Prokaryotic cells were the first form of life on Earth, characterized by having vital biological processes including cell signaling. They are simpler and smaller than eukaryotic cells, and lack a nucleus, and other membrane-bound organelles. The DNA of a prokaryotic cell consists of a single circular chromosome that is in direct contact with the cytoplasm. The nuclear region in the cytoplasm is called the nucleoid. Most prokaryotes are the smallest of all organisms, ranging from 0.5 to 2.0 μm in diameter.
A prokaryotic cell has three regions:
* Enclosing the cell is the cell envelope, generally consisting of a plasma membrane covered by a cell wall which, for some bacteria, may be further covered by a third layer called a capsule. Though most prokaryotes have both a cell membrane and a cell wall, there are exceptions such as Mycoplasma (bacteria) and Thermoplasma (archaea) which only possess the cell membrane layer. The envelope gives rigidity to the cell and separates the interior of the cell from its environment, serving as a protective filter. The cell wall consists of peptidoglycan in bacteria and acts as an additional barrier against exterior forces. It also prevents the cell from expanding and bursting (cytolysis) from osmotic pressure due to a hypotonic environment. Some eukaryotic cells (plant cells and fungal cells) also have a cell wall.
* Inside the cell is the cytoplasmic region that contains the genome (DNA), ribosomes and various sorts of inclusions. The genetic material is freely found in the cytoplasm. Prokaryotes can carry extrachromosomal DNA elements called plasmids, which are usually circular. Linear bacterial plasmids have been identified in several species of spirochete bacteria, including members of the genus Borrelia notably Borrelia burgdorferi, which causes Lyme disease. Though not forming a nucleus, the DNA is condensed in a nucleoid. Plasmids encode additional genes, such as antibiotic resistance genes.
* On the outside, some prokaryotes have flagella and pili that project from the cell's surface. These are structures made of proteins that facilitate movement and communication between cells.
Eukaryotic cells
]]
Plants, animals, fungi, slime moulds, protozoa, and algae are all eukaryotic. These cells are about fifteen times wider than a typical prokaryote and can be as much as a thousand times greater in volume. The main distinguishing feature of eukaryotes as compared to prokaryotes is compartmentalization: the presence of membrane-bound organelles (compartments) in which specific activities take place. Most important among these is a cell nucleus,
* Motile eukaryotes can move using motile cilia or flagella. Motile cells are absent in conifers and flowering plants. Eukaryotic flagella are more complex than those of prokaryotes.
{|class"wikitable" style"margin-left: auto; margin-right: auto;"
|+Comparison of features of prokaryotic and eukaryotic cells
|-
!
!Prokaryotes
!Eukaryotes
|-
!Typical organisms
|bacteria, archaea
|protists, algae, fungi, plants, animals
|-
!Typical size
|~ 1–5 μm
|~ 10–100 μm and more recent studies put this number at around 30 trillion (~36 trillion cells in the male, ~28 trillion in the female). Subcellular components All cells, whether prokaryotic or eukaryotic, have a membrane that envelops the cell, regulates what moves in and out (selectively permeable), and maintains the electric potential of the cell. Inside the membrane, the cytoplasm takes up most of the cell's volume. Except red blood cells, which lack a cell nucleus and most organelles to accommodate maximum space for hemoglobin, all cells possess DNA, the hereditary material of genes, and RNA, containing the information necessary to build various proteins such as enzymes, the cell's primary machinery. There are also other kinds of biomolecules in cells. This article lists these primary cellular components, then briefly describes their function. Cell membrane
The cell membrane, or plasma membrane, is a selectively permeable biological membrane that surrounds the cytoplasm of a cell. In animals, the plasma membrane is the outer boundary of the cell, while in plants and prokaryotes it is usually covered by a cell wall. This membrane serves to separate and protect a cell from its surrounding environment and is made mostly from a double layer of phospholipids, which are amphiphilic (partly hydrophobic and partly hydrophilic). Hence, the layer is called a phospholipid bilayer, or sometimes a fluid mosaic membrane. Embedded within this membrane is a macromolecular structure called the porosome the universal secretory portal in cells and a variety of protein molecules that act as channels and pumps that move different molecules into and out of the cell. Cytoskeleton
are stained red, and microfilaments are stained green.]]
The cytoskeleton acts to organize and maintain the cell's shape; anchors organelles in place; helps during endocytosis, the uptake of external materials by a cell, and cytokinesis, the separation of daughter cells after cell division; and moves parts of the cell in processes of growth and mobility. The eukaryotic cytoskeleton is composed of microtubules, intermediate filaments and microfilaments. In the cytoskeleton of a neuron the intermediate filaments are known as neurofilaments. There are a great number of proteins associated with them, each controlling a cell's structure by directing, bundling, and aligning filaments. The subunit protein of microfilaments is a small, monomeric protein called actin. The subunit of microtubules is a dimeric molecule called tubulin. Intermediate filaments are heteropolymers whose subunits vary among the cell types in different tissues. Some of the subunit proteins of intermediate filaments include vimentin, desmin, lamin (lamins A, B and C), keratin (multiple acidic and basic keratins), and neurofilament proteins (NF–L, NF–M). Genetic material
(DNA)]]
Two different kinds of genetic material exist: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Cells use DNA for their long-term information storage. The biological information contained in an organism is encoded in its DNA sequence.
* Plastids: Plastid are membrane-bound organelle generally found in plant cells and euglenoids and contain specific pigments, thus affecting the colour of the plant and organism. And these pigments also helps in food storage and tapping of light energy. There are three types of plastids based upon the specific pigments. Chloroplasts contain chlorophyll and some carotenoid pigments which helps in the tapping of light energy during photosynthesis. Chromoplasts contain fat-soluble carotenoid pigments like orange carotene and yellow xanthophylls which helps in synthesis and storage. Leucoplasts are non-pigmented plastids and helps in storage of nutrients. Structures outside the cell membrane Many cells also have structures which exist wholly or partially outside the cell membrane. These structures are notable because they are not protected from the external environment by the cell membrane. In order to assemble these structures, their components must be carried across the cell membrane by export processes. Cell wall
Many types of prokaryotic and eukaryotic cells have a cell wall. The cell wall acts to protect the cell mechanically and chemically from its environment, and is an additional layer of protection to the cell membrane. Different types of cell have cell walls made up of different materials; plant cell walls are primarily made up of cellulose, fungi cell walls are made up of chitin and bacteria cell walls are made up of peptidoglycan.
Prokaryotic
Capsule
A gelatinous capsule is present in some bacteria outside the cell membrane and cell wall. The capsule may be polysaccharide as in pneumococci, meningococci or polypeptide as Bacillus anthracis or hyaluronic acid as in streptococci.
Capsules are not marked by normal staining protocols and can be detected by India ink or methyl blue, which allows for higher contrast between the cells for observation. Flagella Flagella are organelles for cellular mobility. The bacterial flagellum stretches from cytoplasm through the cell membrane(s) and extrudes through the cell wall. They are long and thick thread-like appendages, protein in nature. A different type of flagellum is found in archaea and a different type is found in eukaryotes. Fimbriae A fimbria (plural fimbriae also known as a pilus, plural pili) is a short, thin, hair-like filament found on the surface of bacteria. Fimbriae are formed of a protein called pilin (antigenic) and are responsible for the attachment of bacteria to specific receptors on human cells (cell adhesion). There are special types of pili involved in bacterial conjugation. Cellular processes divide by binary fission, while eukaryotes divide by mitosis or meiosis.]] Replication
Cell division involves a single cell (called a mother cell) dividing into two daughter cells. This leads to growth in multicellular organisms (the growth of tissue) and to procreation (vegetative reproduction) in unicellular organisms. Prokaryotic cells divide by binary fission, while eukaryotic cells usually undergo a process of nuclear division, called mitosis, followed by division of the cell, called cytokinesis. A diploid cell may also undergo meiosis to produce haploid cells, usually four. Haploid cells serve as gametes in multicellular organisms, fusing to form new diploid cells.
DNA replication, or the process of duplicating a cell's genome, Replication, like all cellular activities, requires specialized proteins for carrying out the job. Growth and metabolism
Between successive cell divisions, cells grow through the functioning of cellular metabolism. Cell metabolism is the process by which individual cells process nutrient molecules. Metabolism has two distinct divisions: catabolism, in which the cell breaks down complex molecules to produce energy and reducing power, and anabolism, in which the cell uses energy and reducing power to construct complex molecules and perform other biological functions.
Complex sugars can be broken down into simpler sugar molecules called monosaccharides such as glucose. Once inside the cell, glucose is broken down to make adenosine triphosphate (ATP), The process is divided into three steps: protrusion of the leading edge of the cell, adhesion of the leading edge and de-adhesion at the cell body and rear, and cytoskeletal contraction to pull the cell forward. Each step is driven by physical forces generated by unique segments of the cytoskeleton.
Multicellularity
Cell specialization/differentiation
highlights the nuclei of its cells.]]
Multicellular organisms are organisms that consist of more than one cell, in contrast to single-celled organisms.
In complex multicellular organisms, cells specialize into different cell types that are adapted to particular functions. In mammals, major cell types include skin cells, muscle cells, neurons, blood cells, fibroblasts, stem cells, and others. Cell types differ both in appearance and function, yet are genetically identical. Cells are able to be of the same genotype but of different cell type due to the differential expression of the genes they contain.
Most distinct cell types arise from a single totipotent cell, called a zygote, that differentiates into hundreds of different cell types during the course of development. Differentiation of cells is driven by different environmental cues (such as cell–cell interaction) and intrinsic differences (such as those caused by the uneven distribution of molecules during division).
Origin of multicellularity
Multicellularity has evolved independently at least 25 times, including in some prokaryotes, like cyanobacteria, myxobacteria, actinomycetes, or Methanosarcina. However, complex multicellular organisms evolved only in six eukaryotic groups: animals, fungi, brown algae, red algae, green algae, and plants. It evolved repeatedly for plants (Chloroplastida), once or twice for animals, once for brown algae, and perhaps several times for fungi, slime molds, and red algae. Multicellularity may have evolved from colonies of interdependent organisms, from cellularization, or from organisms in symbiotic relationships.
The first evidence of multicellularity is from cyanobacteria-like organisms that lived between 3 and 3.5 billion years ago.
The evolution of multicellularity from unicellular ancestors has been replicated in the laboratory, in evolution experiments using predation as the selective pressure.
Cells emerged around 4 billion years ago. The first cells were most likely heterotrophs. The early cell membranes were probably simpler and more permeable than modern ones, with only a single fatty acid chain per lipid. Lipids spontaneously form bilayered vesicles in water, and could have preceded RNA.
First eukaryotic cells
, a merger of an archaean and an aerobic bacterium created the eukaryotes, with aerobic mitochondria, some 2.2 billion years ago. A second merger, 1.6 billion years ago, added chloroplasts, creating the green plants. and facultatively aerobic mitochondria. It evolved some 2 billion years ago into a population of single-celled organisms that included the last eukaryotic common ancestor, gaining capabilities along the way, though the sequence of the steps involved has been disputed, and may not have started with symbiogenesis. It featured at least one centriole and cilium, sex (meiosis and syngamy), peroxisomes, and a dormant cyst with a cell wall of chitin and/or cellulose. In turn, the last eukaryotic common ancestor gave rise to the eukaryotes' crown group, containing the ancestors of animals, fungi, plants, and a diverse range of single-celled organisms. The plants were created around 1.6 billion years ago with a second episode of symbiogenesis that added chloroplasts, derived from cyanobacteria. To further support his theory, Matthias Schleiden and Theodor Schwann both also studied cells of both animal and plants. What they discovered were significant differences between the two types of cells. This put forth the idea that cells were not only fundamental to plants, but animals as well.
* 1632–1723: Antonie van Leeuwenhoek taught himself to make lenses, constructed basic optical microscopes and drew protozoa, such as Vorticella from rain water, and bacteria from his own mouth.
* 1665: Robert Hooke discovered cells in cork, then in living plant tissue using an early compound microscope. He coined the term cell (from Latin cellula, meaning "small room") in his book Micrographia (1665). and Matthias Jakob Schleiden elucidated the principle that plants and animals are made of cells, concluding that cells are a common unit of structure and development, and thus founding the cell theory.
* 1855: Rudolf Virchow stated that new cells come from pre-existing cells by cell division (omnis cellula ex cellula).
* 1931: Ernst Ruska built the first transmission electron microscope (TEM) at the University of Berlin. By 1935, he had built an EM with twice the resolution of a light microscope, revealing previously unresolvable organelles.
* 1981: Lynn Margulis published Symbiosis in Cell Evolution detailing how eukaryotic cells were created by symbiogenesis. See also
* Cell cortex
* Cell culture
* Cellular model
* Cytoneme
* Cytorrhysis
* Cytotoxicity
* Lipid raft
* List of distinct cell types in the adult human body
* Outline of cell biology
* Parakaryon myojinensis
* Plasmolysis
* Syncytium
* Tunneling nanotube
* Vault (organelle)
References
Further reading
* }}
* ; The [https://www.ncbi.nlm.nih.gov/books/bv.fcgi?ridmboc4.TOC&depth2 fourth edition is freely available] from National Center for Biotechnology Information Bookshelf.
*
*
External links
* [http://www.mechanobio.info/ MBInfo – Descriptions on Cellular Functions and Processes]
* [http://publications.nigms.nih.gov/insidethecell/ Inside the Cell] – a science education booklet by National Institutes of Health, in PDF and ePub.
* [http://www.biology.arizona.edu/cell_bio/cell_bio.html Cell Biology] in "The Biology Project" of University of Arizona.
* [http://www.centreofthecell.org/ Centre of the Cell online]<!-- Partly by Queen Mary University. -->
* [http://cellimages.ascb.org/ The Image & Video Library of The American Society for Cell Biology] , a collection of peer-reviewed still images, video clips and digital books that illustrate the structure, function and biology of the cell.
* [http://wormweb.org/celllineage WormWeb.org: Interactive Visualization of the C. elegans Cell lineage] – Visualize the entire cell lineage tree of the nematode C. elegans
}}
Cell biology
Cell anatomy
Category:1665 in science | https://en.wikipedia.org/wiki/Cell_(biology) | 2025-04-05T18:26:45.045881 |
4231 | Buffy the Vampire Slayer (film) | | music = Carter Burwell
| cinematography = James Hayman
| editing = Jill Savitt
| studio = Sandollar Productions<br />Kuzui Enterprises
| distributor = 20th Century Fox
| released =
| runtime = 86 minutes
| country = United States
| language = English
| budget $7 million
| gross $16.6 million Donald Sutherland, Paul Reubens, Rutger Hauer, and Luke Perry appear in supporting roles.
The film received mixed reviews from critics and grossed $16.6 million on a $7 million budget. It also took a different direction from what Whedon intended, leading him to create a television series of the same name to critical acclaim.
Plot
Buffy Summers is a cheerleader at Hemery High School in Los Angeles. Her main concerns are shopping and spending time with her rich, snooty friends and her boyfriend, Jeffrey. While at school one day, she is approached by a man who calls himself Merrick. He informs her that she is The Slayer, or Chosen One, destined to kill vampires and his duty is to guide and train her. She initially rejects his claim, but realizes he's right when he vividly describes a recurring dream of hers. Additionally, Buffy is exhibiting abilities not known to her, including heightened agility, senses, and endurance; yet she repeatedly tries Merrick's patience with her frivolous nature, indifference to slaying, and sharp-tongued remarks.
Conflict starts with local vampire king, Lothos, and his acolyte, Amilyn. Two young men, Oliver Pike and Benny, are out drinking when they're attacked by Amilyn. Benny is turned, but Pike is saved by Merrick. As a vampire, Benny visits his friend Pike and tries to get him to join him. Amilyn also abducts Cassandra, a girl from Buffy's class, and sacrifices her to Lothos.
Pike decides to leave town when he realizes he is no longer safe. His plan is thwarted when he encounters Amilyn and his gang of vampires, and Buffy and Merrick rescue him. After this encounter, Buffy and Pike start a friendship that eventually becomes romantic, and Pike becomes Buffy's vampire hunting partner.
Buffy discovers her friend Grueller is a vampire. Shortly after he is dispatched, Buffy encounters Lothos and Amilyn. The vampire king puts Buffy into a hypnotic trance. Merrick intervenes, but he is killed by Lothos when he attempts to stake him. As Merrick dies, he tells Buffy to do things her own way rather than live by the rules of others.
At school, Buffy attempts to explain things to her friends, but they refuse to understand her, as they are more concerned with an upcoming school dance. Buffy falls out with them as she realizes she has outgrown their immature, selfish behavior.
At the senior dance, Buffy is dismayed to find Jeffrey has dumped her (via a message on her answering machine) and had come to the dance with her friend Jenny. She meets with Pike, and dances with him instead. Lothos sends his army of vampire minions to the school to attack the dance (among which is Cassandra, though it's unknown what became of her later). During the attack, students and attendants try to fight off the vampires in the gym. Pike kills Benny with high voltage of electricity after they fight, while Buffy confronts Amilyn and Lothos in the school's basement. She kills Amilyn, but Lothos starts to hypnotize her again. The trance is broken when Buffy is reminded of Merrick's last words and she defends herself against Lothos.
Buffy returns to the gym, and Lothos suddenly emerges with a sword; the Slayer and vampire king duel, and Buffy manages to defeat him. The survivors leave, Buffy and Pike share another dance and the couple ride away on a motorcycle.
Cast
Appearing in uncredited roles are Ben Affleck as a basketball player, Ricki Lake as Charlotte, Seth Green as a vampire, and Alexis Arquette as the vampire DJ.
Production
Writer Whedon sold the film to country singer Dolly Parton's production company, Sandollar, in the fall of 1991. Production was limited to five weeks to accommodate Luke Perry's Beverly Hills, 90210 filming schedule. Whedon was inspired by Night of the Comet for the film's story.
Whedon was involved in an advisory role early in the production but departed after becoming dissatisfied with the direction the film was taking. Sutherland had a penchant for improvising or altering his lines in the script, which director Rubel Kuzui allowed him to do freely because he was the film's most high-profile star. Whedon felt this made Merrick's dialogue in the film disjointed and unintelligible. and the gymnasium of University High School in West Los Angeles, where the high school dance and vampire attack was filmed.
Reception
Box office
The film debuted at #5 at the North American box office and eventually grossed $16,624,456 against a $7 million production budget.
Critical reception
On review aggregator website Rotten Tomatoes, the film has an approval rating of 36%, based on 53 reviews, with an average rating of 4.4/10. The consensus reads, "Buffy the Vampire Slayers supernatural coming of age tale is let down by poor directing and even poorer plotting -- though Kristy Swanson and Paul Reubens' game performances still manage to slay." On Metacritic, the film has a weighted average score of 48 out of 100, based on 17 critics, indicating "mixed or average reviews".
Home media
The film was released on VHS and Laserdisc in the U.S. in November 1992 and in the U.K. in April 1993 by Fox Video and re-released in 1995 under the Twentieth Century Fox Selections banner. It was released on DVD in the U.S. in 2001 and on Blu-ray in 2011.
Television
The film was taken in a different direction from what one of its writers Joss Whedon intended, and five years later, he created the darker and acclaimed TV series of the same name.
Many of the details given in the film differ from those of the later television series. For example, Buffy's age and history are dissimilar; she is a senior in high school in the film, but the series starts with her as a sophomore. The film does portray who the Buffy of the TV series was before she learned of her destiny as the Slayer: a popular but selfish and superficial cheerleader. In the film, her parents are wealthy but negligent socialites who care little for her and spend their time at parties and golf tournaments; in the TV series, Buffy has a caring, newly divorced mother named Joyce. The supernatural abilities of both vampires and the Slayer are depicted differently. The vampires in the film die like humans; in the TV series, they turn to dust. Unlike the TV series, their faces remain human albeit pale, fanged, and with notched ears, whereas in the TV series, they take on a demonic aspect, especially when newly raised. The TV series suggests that new vampires must consciously learn to maintain a human appearance. In the film, Merrick has been reincarnated many times, to train many Slayers; in the TV series, Watchers are mortal and specially trained for their role and mission. Merrick's British accent and the manner of his death are different when he appears in flashbacks in the TV series.
Joss Whedon has expressed his dissatisfaction with the film's interpretation of the script,Soundtrack
Other songs featured in the film but not the soundtrack album include: "Everybody Hurts" by R.E.M., "In the Wind" by War Babies, and "Inner Mind" by Eon.
Possible remake
On May 25, 2009, The Hollywood Reporter reported that Roy Lee and Doug Davison of Vertigo Entertainment were working with Fran Rubel Kuzui and Kaz Kuzui on a re-envisioning or relaunch of the Buffy film for the big screen. The film would not be a sequel nor prequel to the existing film or television franchise, and Joss Whedon would have no involvement in the project. None of the characters, cast, or crew from the television series would be featured. Television series executive producer Marti Noxon later reflected that this story might have been produced by the studio in order to frighten Whedon into taking the reins of the project. On November 22, 2010, The Hollywood Reporter confirmed that Warner Bros. had picked up the movie rights to the remake. The film was set for release sometime in 2012. 20th Century Fox, which usually holds the rights to both Buffy and Angel television series, would retain merchandising and some distribution rights.
The idea of the remake caused wrath among fans of the TV series, since Whedon was not involved. The project did not have any connection with the show and would not conform to the continuity maintained with the Buffy the Vampire Slayer Season Eight and Season Nine comic book titles. Not only the fandom, but the main cast members of both the Buffy and Angel series expressed disagreement with the report on Twitter and in recent interviews. Sarah Michelle Gellar said, "I think it's a horrible idea. To try to do a Buffy without Joss Whedon... to be incredibly non-eloquent: that's the dumbest idea I've ever heard." Proposed shooting locations included Black Wood and other areas in rural England, due to budgetary constraints and the potential setting being outside of the city, an unusual change for the franchise.
In December 2011, more than a year after the official reboot announcement, the Los Angeles Times site reported that Whit Anderson, the writer picked for the new Buffy movie, had her script rejected by the producers behind the project, and that a new writer was being sought. Sources also stated that "If you're going to bring it back, you have to do it right. [Anderson] came in with some great ideas and she had reinvented some of the lore and it was pretty cool but in the end there just wasn't enough on the page."
As of July 2018, Joss Whedon announced at San Diego Comic-Con that he was working on a sequel of the TV series and that it might feature a slayer of color.
See also
* The Origin, a comic book reinterpretation of the movie script
* Vampire film
References
External links
*
*
*
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Category:American black comedy films | https://en.wikipedia.org/wiki/Buffy_the_Vampire_Slayer_(film) | 2025-04-05T18:26:45.064826 |
4232 | Barter | thumb|An 1874 newspaper illustration from Harper's Weekly showing a man engaging in barter by offering various farm produce in exchange for his yearly newspaper subscription.
In trade, barter (derived from bareter) is a system of exchange in which participants in a transaction directly exchange goods or services for other goods or services without using a medium of exchange, such as money. Economists usually distinguish barter from gift economies in many ways; barter, for example, features immediate reciprocal exchange, not one delayed in time. Barter usually takes place on a bilateral basis, but may be multilateral (if it is mediated through a trade exchange). In most developed countries, barter usually exists parallel to monetary systems only to a very limited extent. Market actors use barter as a replacement for money as the method of exchange in times of monetary crisis, such as when currency becomes unstable (such as hyperinflation or a deflationary spiral) or simply unavailable for conducting commerce.
No ethnographic studies have shown that any present or past society has used barter without any other medium of exchange or measurement, and anthropologists have found no evidence that money emerged from barter. Nevertheless, economists since the times of Adam Smith (1723–1790) often imagined pre-modern societies as examples to use the inefficiency of barter to explain the emergence of money, of "the" economy, and hence of the discipline of economics itself.
Economic theory
Adam Smith on the origin of money
Adam Smith sought to demonstrate that markets (and economies) pre-existed the state. He argued that money was not the creation of governments. Markets emerged, in his view, out of the division of labour, by which individuals began to specialize in specific crafts and hence had to depend on others for subsistence goods. These goods were first exchanged by barter. Specialization depended on trade but was hindered by the "double coincidence of wants" which barter requires, i.e., for the exchange to occur, each participant must want what the other has. To complete this hypothetical history, craftsmen would stockpile one particular good, be it salt or metal, that they thought no one would refuse. This is the origin of money according to Smith. Money, as a universally desired medium of exchange, allows each half of the transaction to be separated.
David Graeber's theory
Anthropologists such as David Graeber have argued, in contrast, "that when something resembling barter does occur in stateless societies it is almost always between strangers." Barter occurred between strangers, not fellow villagers, and hence cannot be used to naturalistically explain the origin of money without the state. Since most people engaged in trade knew each other, exchange was fostered through the extension of credit. Marcel Mauss, author of 'The Gift', argued that the first economic contracts were to not act in one's economic self-interest, and that before money, exchange was fostered through the processes of reciprocity and redistribution, not barter. Everyday exchange relations in such societies are characterized by generalized reciprocity, or a non-calculative familial "communism" where each takes according to their needs, and gives as they have.
Features of bartering
Often the following features are associated with barter transactions:
There is a demand focus for things of a different kind.
Most often, parties trade goods and services for goods or services that differ from what they are willing to forego.
The parties of the barter transaction are both equal and free.
Neither party has advantages over the other, and both are free to leave the trade at any point in time.
The transaction happens simultaneously.
The goods are normally traded at the same point in time. Nonetheless delayed barter in goods may rarely occur as well. In the case of services being traded however, the two parts of the trade may be separated.
The transaction is transformative.
A barter transaction "moves objects between the regimes of value", meaning that a good or service that is being traded may take up a new meaning or value under its recipient than that of its original owner.
There is no criterion of value.
There is no real way to value each side of the trade. There is bargaining taking place, not to do with the value of each party's good or service, but because each player in the transaction wants what is offered by the other.
Limitations
The limitations of barter are often explained in terms of its inefficiencies in facilitating exchange in comparison to money.
It is said that barter is 'inefficient' because:
There needs to be a 'double coincidence of wants'
For barter to occur between two parties, both parties need to have what the other wants.
There is no common measure of value/ No Standard Unit of Account
In a monetary economy, money plays the role of a measure of the value of all goods, so their values can be assessed against each other; this role may be absent in a barter economy.
Indivisibility of certain goods
If a person wants to buy a certain amount of another's goods, but only has for payment one indivisible unit of another good which is worth more than what the person wants to obtain, a barter transaction cannot occur.
Lack of standards for deferred payments
This is related to the absence of a common measure of value, although if the debt is denominated in units of the good that will eventually be used in payment, it is not a problem.
Difficulty in storing wealth
If a society relies exclusively on perishable goods, storing wealth for the future may be impractical. However, some barter economies rely on durable goods like sheep or cattle for this purpose.
History
Silent trade
thumb|Scandinavian and Russian traders bartering their wares. Olaus Magnus, 1555
Other anthropologists have questioned whether barter is typically between "total" strangers, a form of barter known as "silent trade". Silent trade, also called silent barter, dumb barter ("dumb" here used in its old meaning of "mute"), or depot trade, is a method by which traders who cannot speak each other's language can trade without talking. However, Benjamin Orlove has shown that while barter occurs through "silent trade" (between strangers), it occurs in commercial markets as well. "Because barter is a difficult way of conducting trade, it will occur only where there are strong institutional constraints on the use of money or where the barter symbolically denotes a special social relationship and is used in well-defined conditions. To sum up, multipurpose money in markets is like lubrication for machines - necessary for the most efficient function, but not necessary for the existence of the market itself."
In his analysis of barter between coastal and inland villages in the Trobriand Islands, Keith Hart highlighted the difference between highly ceremonial gift exchange between community leaders, and the barter that occurs between individual households. The haggling that takes place between strangers is possible because of the larger temporary political order established by the gift exchanges of leaders. From this, he concludes that barter is "an atomized interaction predicated upon the presence of society" (i.e. that social order established by gift exchange), and not typical between strangers.
Times of monetary crisis
As Orlove noted, barter may occur in commercial economies, usually during periods of monetary crisis. During such a crisis, currency may be in short supply, or highly devalued through hyperinflation. In such cases, money ceases to be the universal medium of exchange or standard of value. Money may be in such short supply that it becomes an item of barter itself rather than the means of exchange. Barter may also occur when people cannot afford to keep money (as when hyperinflation quickly devalues it).
An example of this would be during the Crisis in Bolivarian Venezuela, when Venezuelans resorted to bartering as a result of hyperinflation. The increasingly low value of bank notes, and their lack of circulation in suburban areas, meant that many Venezuelans, especially those living outside of larger cities, took to trading over their own goods for even the most basic of transactions.
Additionally, in the wake of the 2008 financial crisis, barter exchanges reported a double-digit increase in membership, due to the scarcity of fiat money, and the degradation of monetary system sentiment.
Exchanges
thumb|'White traders bartering with the Indians' 1820
Economic historian Karl Polanyi has argued that where barter is widespread, and cash supplies limited, barter is aided by the use of credit, brokerage, and money as a unit of account (i.e. used to price items). All of these strategies are found in ancient economies including Ptolemaic Egypt. They are also the basis for more recent barter exchange systems.
While one-to-one bartering is practised between individuals and businesses on an informal basis, organized barter exchanges have developed to conduct third party bartering which helps overcome some of the limitations of barter. A barter exchange operates as a broker and bank in which each participating member has an account that is debited when purchases are made, and credited when sales are made.
Modern barter and trade has evolved considerably to become an effective method of increasing sales, conserving cash, moving inventory, and making use of excess production capacity for businesses around the world. Businesses in a barter earn trade credits (instead of cash) that are deposited into their account. They then have the ability to purchase goods and services from other members utilizing their trade credits – they are not obligated to purchase from those whom they sold to, and vice versa. The exchange plays an important role because they provide the record-keeping, brokering expertise and monthly statements to each member. Commercial exchanges make money by charging a commission on each transaction either all on the buy side, all on the sell side, or a combination of both. Transaction fees typically run between 8 and 15%. A successful example is International Monetary Systems, which was founded in 1985 and is one of the first exchanges in North America opened after the TEFRA Act of 1982.
Organized barter (retail barter)
Since the 1930s, organized barter has been a common type of barter where company's join a barter organization (barter company) which serves as a hub to exchange goods and services without money as a medium of exchange. Similarly to brokerage houses, barter company facilitates the exchange of goods and services between member companies, allowing members to acquire goods and services by providing their own as payment. Member companies are required to sign a barter agreement with the barter company as a condition of their membership. In turn, the barter company provides each member with the current levels of supply and demand for each good and service which can be purchased or sold in the system. These transactions are mediated by barter authorities of the member companies. The barter member companies can then acquire their desired goods or services from another member company within a predetermined time. Failure to deliver the good or service within the fixed time period results in the debt being settled in cash. Each member company pays an annual membership fee and purchase and sales commission outlined in the contract. Organized barter increases liquidity for member companies as it mitigates the requirement of cash to settle transactions, enabling sales and purchases to be made with excess capacity or surplus inventory. Additionally, organized barter facilitates competitive advantage within industries and sectors. Considering the quantity of transactions depending on the supply-demand balance of the goods and services within the barter organization, member companies tend to face minimal competition within their own operating sector.
Corporate barter
Producers, wholesalers and distributors tend to engage in corporate barter as a method of exchanging goods and services with companies they are in business with. These bilateral barter transactions are targeted towards companies aiming to convert stagnant inventories into receivable goods or services, to increase market share without cash investments, and to protect liquidity. However, issues arise as to the imbalance of supply and demand of desired goods and services and the inability to efficiently match the value of goods and services exchanged in these transactions. This alternate currency eliminated price variability between markets, as well as the role of merchants who bought low and sold high. The system arose in a period where paper currency was an innovation. Paper currency was an IOU circulated by a bank (a promise to pay, not a payment in itself). Both merchants and an unstable paper currency created difficulties for direct producers.
An alternate currency, denominated in labour time, would prevent profit taking by middlemen; all goods exchanged would be priced only in terms of the amount of labour that went into them as expressed in the maxim 'Cost the limit of price'. It became the basis of exchanges in London, and in America, where the idea was implemented at the New Harmony communal settlement by Josiah Warren in 1826, and in his Cincinnati 'Time store' in 1827. Warren ideas were adopted by other Owenites and currency reformers, even though the labour exchanges were relatively short lived.
In England, about 30 to 40 cooperative societies sent their surplus goods to an "exchange bazaar" for direct barter in London, which later adopted a similar labour note. The British Association for Promoting Cooperative Knowledge established an "equitable labour exchange" in 1830. This was expanded as the National Equitable Labour Exchange in 1832 on Grays Inn Road in London. These efforts became the basis of the British cooperative movement of the 1840s. In 1848, the socialist and first self-designated anarchist Pierre-Joseph Proudhon postulated a system of time chits.
Michael Linton this originated the term "local exchange trading system" (LETS) in 1983 and for a time ran the Comox Valley LETSystems in Courtenay, British Columbia. LETS networks use interest-free local credit so direct swaps do not need to be made. For instance, a member may earn credit by doing childcare for one person and spend it later on carpentry with another person in the same network. In LETS, unlike other local currencies, no scrip is issued, but rather transactions are recorded in a central location open to all members. As credit is issued by the network members, for the benefit of the members themselves, LETS are considered mutual credit systems.
Local currencies
The first exchange system was the Swiss WIR Bank. It was founded in 1934 as a result of currency shortages after the stock market crash of 1929. "WIR" is both an abbreviation of Wirtschaftsring (economic circle) and the word for "we" in German, reminding participants that the economic circle is also a community.
In Australia and New Zealand, the largest barter exchange is Bartercard, founded in 1991, with offices in the United Kingdom, United States, Cyprus, UAE, Thailand, and most recently, South Africa. Other than its name suggests, it uses an electronic local currency, the trade dollar. Since its inception, Bartercard has amassed a trading value of over US$10 billion, and increased its customer network to 35,000 cardholders.
Bartering in business
In business, barter has the benefit that one gets to know each other, one discourages investments for rent (which is inefficient) and one can impose trade sanctions on dishonest partners.
According to the International Reciprocal Trade Association, the industry trade body, more than 450,000 businesses transacted $10 billion globally in 2008 – and officials expect trade volume to grow by 15% in 2009.
It is estimated that over 450,000 businesses in the United States were involved in barter exchange activities in 2010. There are approximately 400 commercial and corporate barter companies serving all parts of the world. There are many opportunities for entrepreneurs to start a barter exchange. Several major cities in the U.S. and Canada do not currently have a local barter exchange. There are two industry groups in the United States, the National Association of Trade Exchanges (NATE) and the International Reciprocal Trade Association (IRTA). Both offer training and promote high ethical standards among their members. Moreover, each has created its own currency through which its member barter companies can trade. NATE's currency is known as the BANC and IRTA's currency is called Universal Currency (UC).
In Canada, barter continues to thrive. The largest b2b barter exchange is International Monetary Systems (IMS Barter), founded in 1985. P2P bartering has seen a renaissance in major Canadian cities through Bunz - built as a network of Facebook groups that went on to become a stand-alone bartering based app in January 2016. Within the first year, Bunz accumulated over 75,000 users in over 200 cities worldwide.
Corporate barter focuses on larger transactions, which is different from a traditional, retail oriented barter exchange. Corporate barter exchanges typically use media and advertising as leverage for their larger transactions. It entails the use of a currency unit called a "trade-credit". The trade-credit must not only be known and guaranteed but also be valued in an amount the media and advertising could have been purchased for had the "client" bought it themselves (contract to eliminate ambiguity and risk).
thumb|In 1973, PepsiCo established bottling plants in the Soviet Union in exchange for Stolichnaya vodka. In the late 1980s, new plants were established in exchange for Soviet naval vessels for scrap.|alt=Pepsi-Cola label in Russian: "ПЕПСИ-КОЛА [...]"
Soviet bilateral trade is occasionally called "barter trade", because although the purchases were denominated in U.S. dollars, the transactions were credited to an international clearing account, avoiding the use of hard cash.
Tax implications
In the United States, Karl Hess used bartering to make it harder for the IRS to seize his wages and as a form of tax resistance. Hess explained how he turned to barter in an op-ed for The New York Times in 1975. However the IRS now requires barter exchanges to be reported as per the Tax Equity and Fiscal Responsibility Act of 1982. Barter exchanges are considered taxable revenue by the IRS and must be reported on a 1099-B form. According to the IRS, "The fair market value of goods and services exchanged must be included in the income of both parties."
Other countries, though, do not have the reporting requirement that the U.S. does concerning proceeds from barter transactions, but taxation is handled the same way as a cash transaction. If one barters for a profit, one pays the appropriate tax; if one generates a loss in the transaction, they have a loss. Bartering for business is also taxed accordingly as business income or business expense. Many barter exchanges require that one register as a business.
In countries like Australia and New Zealand, barter transactions require the appropriate tax invoices declaring the value of the transaction and its reciprocal GST component. All records of barter transactions must also be kept for a minimum of five years after the transaction is made.
Recent developments
In Spain (particularly the Catalonia region) there is a growing number of exchange markets. These barter markets or swap meets work without money. Participants bring things they do not need and exchange them for the unwanted goods of another participant. Swapping among three parties often helps satisfy tastes when trying to get around the rule that money is not allowed.
Other examples are El Cambalache in San Cristobal de las Casas, Chiapas, Mexico and post-Soviet societies.
The recent blockchain technologies are making it possible to implement decentralized and autonomous barter exchanges that can be used by crowds on a massive scale. BarterMachine is an Ethereum smart contract based system that allows direct exchange of multiple types and quantities of tokens with others. It also provides a solution miner that allows users to compute direct bartering solutions in their browsers. Bartering solutions can be submitted to BarterMachine which will perform collective transfer of tokens among the blockchain addresses that belong to the users. If there are excess tokens left after the requirements of the users are satisfied, the leftover tokens will be given as reward to the solution miner.
See also
Collaborative consumption
Complementary currencies
Gift economy
International trade
List of international trade topics
Local exchange trading system
Natural economy
Private currency
Property caretaker
Quid pro quo
Simple living
Trading cards
Time banking
References
External links
Category:Business terms
Category:Cashless society
Category:Economic systems
Category:Pricing
Category:Simple living
Category:Tax avoidance
Category:Trade | https://en.wikipedia.org/wiki/Barter | 2025-04-05T18:26:45.091018 |
4233 | Berthe Morisot | | birth_place = Bourges, Cher, France
| death_date
| death_place = Paris, France
| resting_place = Cimetière de Passy
| field = Painting
| training | notable_works
| movement = Impressionism
| works | spouse
}}
Berthe Marie Pauline Morisot (; 14 January 1841 – 2 March 1895) was a French painter and a member of the circle of painters in Paris who became known as the Impressionists.
In 1864, Morisot exhibited for the first time in the highly esteemed Salon de Paris. Sponsored by the government and judged by Academicians, the Salon was the official, annual exhibition of the in Paris. Her work was selected for exhibition in six subsequent Salons until, in 1874, she joined the "rejected" Impressionists in the first of their own exhibitions (15 April – 15 May 1874), which included Paul Cézanne, Edgar Degas, Claude Monet, Camille Pissarro, Pierre-Auguste Renoir and Alfred Sisley. It was held at the studio of the photographer Nadar. Morisot went on to participate in all but one of the following eight impressionist exhibitions, between 1874 and 1886.
Morisot was married to Eugène Manet, the brother of her friend and colleague Édouard Manet.
She was described by art critic Gustave Geffroy in 1894 as one of "les trois grandes dames" (The three great ladies) of Impressionism alongside Marie Bracquemond and Mary Cassatt.
Early life
Morisot was born 14 January 1841, in Bourges, France, into an affluent bourgeois family. Her father, Edmé Tiburce Morisot, was the prefect (senior administrator) of the department of Cher. He also studied architecture at École des Beaux Arts. Her mother, Marie-Joséphine-Cornélie Thomas, was the great-niece of Jean-Honoré Fragonard, one of the most prolific Rococo painters of the ancien régime. She had two older sisters, Yves (1838–1893) and Edma (1839–1921), plus a younger brother, Tiburce, born in 1848. The family moved to Paris in 1852, when Morisot was a child.
It was commonplace for daughters of bourgeois families to receive art education, so Berthe and her sisters Yves and Edma were taught privately by Geoffroy-Alphonse Chocarne and Joseph Guichard. Morisot and her sisters initially started taking lessons so that they could each make a drawing for their father for his birthday. Guichard also introduced them to the works of Gavarni.
Her sister Yves married Théodore Gobillard, a tax inspector, in 1866 and was painted by Edgar Degas as Madame Théodore Gobillard (Metropolitan Museum of Art, New York City).
As a copyist at the Louvre, Morisot met and befriended other artists such as Manet and Monet. By 1863 she was studying under , another Barbizon painter. In the winter of 1863–64 she studied sculpture under Aimé Millet, but none of her sculptures is known to survive. Main periods of Morisot's work Training, 1857–1870 It is hard to trace the stages of Morisot's training and to tell the exact influence of her teachers because she was never pleased with her work and she destroyed nearly all of the artworks she produced before 1869. Her first teacher, Geoffroy-Alphonse Chocarne, taught her the basics of drawing. After several months, Morisot began to take classes taught by Guichard. During this period, she drew mostly ancient classical figures. When Morisot expressed her interests in plein-air painting, Guichard sent her to follow Corot and Oudinot. Painting outdoors, she used watercolors which are easy to carry. At that time, Morisot also became interested in pastel. Watercolorist, 1870–1874 During this period, Morisot still found oil painting difficult, and worked mostly in watercolor. Her choice of colors is rather restrained; however, the delicate repetition of hues renders a balanced effect. Due to specific characteristics of watercolors as a medium, Morisot was able to create a translucent atmosphere and feathery touch, which contribute to the freshness in her paintings. Around 1880 she began painting on unprimed canvases—a technique Manet and Eva Gonzalès also experimented with at the time—and her brushwork became looser. In 1888–89, her brushstrokes transitioned from short, rapid strokes to long, sinuous ones that define form. The outer edges of her paintings were often left unfinished, allowing the canvas to show through and increasing the sense of spontaneity. After 1885, she worked mostly from preliminary drawings before beginning her oil paintings. She often worked in oil paint, watercolors, and pastel simultaneously, and sketched using various drawing media. Morisot's works are almost always small in scale.
Morisot creates a sense of space and depth through the use of color. Although her color palette was somewhat limited, her fellow impressionists regarded her as a "virtuoso colorist". Paintings like The Cradle (1872), in which she depicted current trends for nursery furniture, reflect her sensitivity to fashion and advertising, both of which would have been apparent to her female audience. Her works also include landscapes, garden settings, boating scenes, and themes of boredom or ennui. In her late works, she often referred to the past to recall a memory from her earlier life and youth, and her departed companions.
Impressionism's alleged attachment to brilliant color, sensual surface effects, and fleeting sensory perceptions led a number of critics to assert in retrospect that this style, once primarily the battlefield of insouciant, combative males, was inherently feminine and best suited to women's weaker temperaments, lesser intellectual capabilities, and greater sensibility.
During Morisot's 1874 exhibition with the Impressionists, such as Monet and Manet, Le Figaro critic Albert Wolff noted that the Impressionists consisted of "five or six lunatics of which one is a woman...[whose] feminine grace is maintained amid the outpourings of a delirious mind." She chose to exhibit under her full maiden name instead of using a pseudonym or her married name. As her skill and style improved, many began to rethink their opinion toward Morisot. In the 1880 exhibition, many reviews judged Morisot among the best, even including Le Figaro critic Albert Wolff.
, Berthe Morisot with a Bouquet of Violets (in mourning for her father), 1872, Musée d'Orsay]]
Personal life
Morisot came from an eminent family, the daughter of a senior government official and the great-niece of Rococo artist Jean-Honoré Fragonard. She met her longtime friend and colleague, Édouard Manet, in 1868 and married his brother, Eugène Manet, in 1874. On 14 November 1878, she gave birth to her only child, Julie, who posed frequently for her mother and other Impressionist artists, including Renoir and her uncle Édouard.
Correspondence between Morisot and Édouard Manet shows warm affection, and Manet gave her an easel as a Christmas present. Morisot often posed for Manet and there are several portrait paintings of Morisot such as Repose (Portrait of Berthe Morisot) and Berthe Morisot with a Bouquet of Violets. Morisot died on 2 March 1895, in Paris, of pneumonia contracted while attending to her daughter Julie's similar illness, thus making Julie an orphan at the age of 16. The day before she died, Berthe wrote to Julie: Berthe Morisot was interred in the Cimetière de Passy.
It has been speculated that there was a repressed love between Manet and Morisot, exemplified by the numerous portraits he did of her before she married his brother.WorksSelection of works
:This list is incomplete, you can help by expanding it with certified entries.
This limited selection is based in part on the book Berthe Morisot by Charles F. Stuckey, William P. Scott and Susan G. Lindsay, which is in turn drawn from the 1961 catalogue by Marie-Louise Bataille, Denis Rouart, and Georges Wildenstein. There are variations between the dates of execution, first showing and purchase. Titles may vary between sources.
1864–1874
* Étude, 1864, oil on canvas, 60.3 × 73 cm, private collection
* Chaumière en Normandie, 1865, oil on canvas, 46 × 55 cm, private collection
* ''La Seine en aval du pont d'Iéna, 1866, oil on canvas, 51 × 73 cm, private collection
* La Rivière de Pont Aven à Roz-Bras, 1867, oil on canvas, 55 × 73 cm, private collection – Chicago
* Bateaux à l'aurore, 1869, pastel on paper, 19.7 × 26.7 cm, private collection
*Jeune fille à sa fenêtre, 1869, oil on canvas, 36.8 × 45.4 cm, private collection
* Madame Morisot et sa fille Madame Pontillon (La Lecture), 1869–1870, oil on canvas, 101 × 81.8 cm, National Gallery of Art, Washington, D.C.
* Vue du petit port de Lorient (The Harbor at Lorient), 1869, oil on canvas, 43 × 72 cm, National Gallery of Art, Washington, D.C.
* Le Port de Cherbourg, 1871, crayon and watercolour on paper, 15.6 × 20.3 cm, private collection of Paul Mellon, Upperville, Virginia
* Le Port de Cherbourg, 1871, oil on canvas, 41.9 × 55.9 cm, private collection of Paul Mellon, Upperville, Virginia
* Vue de paris de hauteurs du Trocadéro, 1871, oil on canvas, 46.1 × 81.5 cm, Santa Barbara Museum of Art, California
* Femme et enfant au balcon, 1871–72, watercolor, 20.6 × 17.3 cm, Art Institute of Chicago
* Intérieur, 1871, oil on canvas, 60 × 73 cm, private collection
* Portrait de Madame Pontillon'', 1871, pastel on paper, 85.5 × 65.8 cm, Louvre – drawings cabinet gift of Madame Edma Pontillon to the Louvre in 1921, in the collection of the Musée d'Orsay
* ''L'Entrée du port, 1871, watercolour on paper, 24.9 × 15.1 cm, , Bagnols-sur-Cèze – drawings cabinet
* Madame Pontillon et sa fille Jeanne sur un canapé, 1871, watercolour on paper, 25.1 × 25.9 cm, National Gallery of Art, Washington
* Jeune fille sur un banc (Edma Pontillon), 1872, oil on canvas, 33 × 41 cm
* Cache-cache, 1872, oil on canvas, 33 × 41 cm, Private collection
* Le Berceau'', 1872, oil on canvas, 56 × 46 cm Musée d'Orsay, Paris
* La Lecture (Edma lisant), also titled ''L'Ombrelle verte, 1873, oil on canvas, 45.1 × 72.4 cm, Cleveland Museum of Art, Ohio
* Madame Boursier et sa fille, 1873, oil on canvas, 74 × 52 cm, Virginia Museum of Fine Arts
* Le Village de Maurecourt, 1873, pastel on paper, 47 × 71.8 cm, private collection
* Coin de Paris vu de Passy, 1873, pastel on paper, 27 × 34.9 cm, private collection
* Sur la terrasse, 1874, oil on canvas, 45 × 54 cm, Musée du Petit Palais, Paris
* In a Villa by the Seaside, 1874, oil on canvas,50.2 x 61 cm, Norton Simon Art Foundation, Norton Simon Museum, Pasadena, CA
* Portrait de Madame Hubbard, 1874, oil on canvas, 50.5 × 81 cm, Ordrupgaard museum de Copenhagen
* Femme et enfant au bord de la mer , 1874, watercolor on paper, 16 × 21.3 cm, private collection
* Dans le parc, c. 1874, pastel on paper, 72.5 × 91.8 cm, Musée des Beaux-Arts de la Ville de Paris, Petit Palais.
1875–1884
* Percher de blanchisseuses , 1875, Oil on canvas 33 × 40.8 cm, National Gallery of Art,
* Scène de port dans l'île de Wight, 1875, oil on canvas, 48 × 36 cm private collection
* Scène de port dans l'île de Wight, 1875, oil on canvas, 43 × 64 cm, Newark Museum, Newark, New Jersey
* Eugène Manet à l'île de Wight, 1875, oil on canvas, 38 × 46 cm private collection
* Avant d'un yacht, 1875, watercolour on paper, 20.6 × 26.7 cm, Sterling and Francine Clark Art Institute, Williamstown, Massachusetts
* Femme à sa toilette, 1875, oil on canvas, 46 × 38 cm private collection
* Femme à sa toilette , 1875–1880, hst, dim; 60.3 × 80.4 cm, Coll. Art Institute of Chicago
* Portrait de femme (Avant le théâtre), 1875, oil on canvas, 57 × 31 cm, Galerie Schröder & Leisewitz, Bremen
* Au Bal ou Jeune fille au bal, 1875, oil on canvas, 62 × 52 cm, Musée Marmottan-Monet, Paris
*Jeune Femme arrosant un arbuste, 1876, oil on canvas, 40.01 × 31.75 cm, Virginia Museum of Fine Arts, Richmond, Virginia
* Le Corsage noir , 1876, oil on canvas, 73 × 59.8 cm National Gallery of Ireland, Dublin
* La Psyché, 1876, oil on canvas, 65 × 54 cm, Thyssen-Bornemisza Museum, Madrid
* Rêveuse, 1877, pastel on canvas, 50.2 × 61 cm, Nelson-Atkins Museum of Art, Kansas City, Missouri
* ''L'Été, encore intitulé Jeune femme près d'une fenêtre 1878, oil on canvas, 76 × 61 cm, Musée Fabre, Montpellier
* Jeune feme assise, 1878–1879, oil on canvas, 80 × 100 cm, private collection New York City
* Jeune fille de dos à sa toilette, encore intitulé Femme à sa toilette 1879, oil on canvas, 60.3 × 80.4 cm Art Institute of Chicago
* Le Lac du Bois de Boulogne (Jour d'été), 1879, 45.7 × 75.3 cm, National Gallery, London
* Dans le jardin (Dames cueillant des fleurs), 1879, oil on canvas, 61 × 73.5 cm, Nationalmuseum Stockholm
* Jeune femme en toilette de bal (Young Woman in Evening Dress)'', 1879, oil on canvas, 71 x 54 cm, Musée d'Orsay, Paris
* Hiver, 1880, oil on canvas, 73.5 × 58.5 cm, Dallas Museum of Art
* Deux filles assises près d'une table, 1880, crayon and watercolour on paper 19,6 × 26.6 cm private collection Germany
* Bateaux sur la Seine''. c. 1880, 25.5 × 50 cm. Provenance: acquired from the artist's family by the first owner, sold with a letter of authenticity from Daniel Wildenstein at Sotheby's, 1984.
* Plage à Nice 1881–1882, watercolour on paper 42 × 55 cm, Nationalmuseum Stockholm
* Le Port de Nice, 1881–1882, oil on canvas, 53 × 43 cm private collection
* Le Port de Nice, 1881–1882, oil on canvas, 41 × 55 cm private collection
* Le Port de Nice 1881 (?)third version format 38 × 46 cm conserved at Dallas Museum of Art
* Le Thé, 1882, oil on canvas, 57.5 × 71.5 cm, Fondation Madelon Vaduz, Liechtenstein
* Le Port de Nice, 1881–1882, oil on canvas, 53 × 43 cm private collection
* Le Jardin (Femmes dans le jardin) (1882–1883) oil on canvas, 99.1 × 127 cm, Sara Lee Corporation, Chicago
* Eugène Manet et sa fille au jardin 1883, oil on canvas, 60 × 73, private collection
* Dans le jardin à Maurecourt, 1883, oil on canvas, 54 × 65 cm, Toledo Museum of Art
* Le Quai de Bougival, 1883, oil on canvas, 55.5 × 46 cm, Nasjonalgalleriet, Oslo
* Julie et son bateau (Enfant jouant), 1883, watercolour on paper, 25 × 16 cm, private collection
* La Meule de foin 1883, oil on canvas, 55.3 × 45.7 cm, private collection, New York
* Dans la véranda, 1884, oil on canvas, 81 × 10 cm, private collection
* Julie avec sa poupée, 1884, oil on canvas, 82 × 10 cm, private collection
* Petite fille avec sa poupée (Julie Manet), 1884, pastel on paper, 60 × 46 cm, private collection
* Sur le lac, 1884, oil on canvas, 65 × 54 cm, private collection
* ''The Artist's Daughter, Julie, with her Nanny'', c. 1884, oil on canvas, Minneapolis Institute of Art
1885–1894
* Autoportrait, 1885, pastel on paper, 47.5 × 37.5 cm, Art Institute of Chicago
* Autoportrait avec Julie, 1885, oil on canvas, 72 × 91 cm, private collection
* Jeune femme assise au Bois de Boulogne, 1885, watercolour on paper, 19 × 28 cm, Metropolitan Museum of Art, New York City
* La Forêt de Compiègne, 1885, oil on canvas, 54.2 × 64.8 cm, Art Institute of Chicago
* Le Bain (Jeune file se coiffant), 1885–1886, oil on canvas, 81.1 × 72.3 cm, Art Institute of Chicago
* Dans la salle à manger, 1885–1886, oil on canvas, 61.3 × 50 cm, National Gallery of Art
* Le Lever, 1886, oil on canvas, 65 × 54 cm, collection Durand-Ruel
* Intérieur à Jersey (Intérieur de cottage), 1886, oil on canvas, 50 × 60 cm, Musée communal des beaux-arts d'Ixelles
* ''Femme s'essuyant, 1886–1887, pastel on paper, 42 × 41 cm, Non localisé
* Julie avec un chat, 1887, drypoint, 14.5 × 11.3 cm, National Gallery of Art, Washington
* Nu de dos, 1887, charcoal on paper, 57 × 43 cm, private collection
* Éventail en médaillon, 1887, watercolour on silk fan, private collection
* Portrait de Paule Gobillard'', 1887, coloured pencil on paper, 27.9 × 22.9 cm, Reader's Digest Association, New York
* Le Lac du Bois de Boulogne, 1887, watercolour on paper, 29.5 × 22.2 cm, National Museum of Women in the Arts, Washington
* Fillette lisant (La lecture), 1888, oil on canvas, 74.3 × 92.7 cm, Museum of Fine Arts (St. Petersburg, Florida)
* Jeune Fille dans un parc (Young Girl in a Park), 1888–1893, oil on canvas, 90 × 81 cm, Musée des Augustins, Toulouse
* Berthe Morisot and Julie Manet, c.1888–1890, drypoint, 18.42 x 13.49 cm, Minneapolis Institute of Art, Minneapolis
* La Cueillette des oranges, 1889, pastel, 61 × 46 cm, Musée d'art et d'histoire de Provence, Grasse
*La Petite Niçoise (The Small Girl from Nice), 1889, oil on canvas, 64 × 52 cm, Musée des Beaux-Arts de Lyon
*''Sous l'oranger (Julie), 1889, oil on canvas, 54 × 65 cm, private collection
*L'Île du Bois de Boulogne, 1889, oil on canvas, 68.4 × 54.6 cm, National Gallery of Art, Washington
*Le Flageolet (Julie Manet et Jeanne Gobillard), 1891, oil on canvas, 56 × 87 cm, private collection
*Le Cerisier 1891, 1891, oil on canvas, 138 × 88.9 cm, private collection, Washington
* Étude pour Le Cerisier'', 1891, pastel on paper, 45.7 × 48.9 cm, The Reader's Digest Association
*Julie Manet avec son lévrier, 1893, oil on canvas, 73× 80 cm, Musée Marmottan-Monet, Paris
*Les Enfants de Gabriel Thomas, 1894, oil on canvas, 100 × 80 cm, Musée d'Orsay, Paris
*La Coiffure, 1894, oil on canvas, 100 × 80 cm, Museo Nacional de Bellas Artes (Buenos Aires)
*Jeune fille aux cheveux noirs, 1894, pencil and watercolour, 23.1 × 16.8 cm, Philadelphia Museum of Art, PhiladelphiaGallery<gallery widths"170" heights"170" perrow"6">
File:The Artist's Sister at a Window A16570.jpg|''The Artist's Sister at a Window, 1869, National Gallery of Art, Washington D.C.
File:Berthe Morisot, The Sisters, 1869, NGA 42285.jpg|The Sisters, 1869, National Gallery of Art, Washington D.C.
File:Berthe Morisot 001.jpg|Woman and Child on the Balcony (Femme et enfant au balcon), 1872, Artizon Museum, Tokyo
File:Berthe Morisot 008.jpg|The Cradle'', 1872, Musée d'Orsay, Paris
File:Berthe Morisot Reading.jpg|''L'ombrelle verte, Reading (portrait of Edma Morisot), 1873, Cleveland Museum of Art
File:Berthe Morisot Jeune fille au bal.jpg|Au Bal, 1875, Musée Marmottan-Monet, Paris
File:1875 Morisot Laundry.jpg|Suspendre le linge pour sécher (Hanging the Laundry out to Dry), 1875, National Gallery of Art, Washington D.C.
File:Berthe Morisot - Woman at Her Toilette - 1924.127 - Art Institute of Chicago.jpg|Woman at her Toilette'', 1875, The Art Institute of Chicago
File:Berthe Morisot - Eugène Manet à l'île de Wight.jpg|Eugène Manet on the Isle of Wight, 1875, Musée Marmottan Monet, Paris
File:Psique.berthe.morisot.jpg|La Psyché, 1876, Thyssen-Bornemisza Museum, Madrid
File:Berthe Morisot - Sommertag - 1879.jpeg|''Summer's Day (Jour d'été), 1879, National Gallery, London
File:Berthe Morisot Winter aka Woman with a Muff.jpg|Winter aka Woman with a Muff (Hiver), 1880, Dallas Museum of Arts
File:Child among the Hollyhocks - Berthe Morisot - Paris 1863 – 1874- Revolution in der Kunst-9810 (without frame).jpg|Child among the Hollyhocks (Enfant dans les roses trémières), 1881, Wallraf-Richartz Museum, Cologne
File:Morisot TheArtistsDaughterJulieWithHerNanny MIA 9640.jpg|The Artists' Daughter Julie With Her Nanny, c.1884, Minneapolis Institute of Art
File:Girl on Divan ca. 1885 – Berthe Morisot.jpg|Girl on Divan, ca. 1885, National Gallery, London
File:Berthe Morisot - The Cage, 1885.jpg|The Cage, 1885, National Museum of Women in the Arts, Washington D.C.
File:Berthe Morisot The Bath.jpg|The Bath (Girl Arranging Her Hair), 1885–86, Clark Art Institute, Williamstown, Massachusetts
File:Berthe Morisot 003.jpg|In the Dining Room, 1886, National Gallery of Art, Washington D.C.
File:Morisot Jeune fille dans un parc (RO 708).jpg|Young Girl in a Park, 1888–1893, Musée des Augustins, Toulouse
File:Before the Mirror by Berthe Morisot.jpg|Before the Mirror, 1890, Fondation Pierre Gianadda, Switzerland
File:Berthe Morisot - The Flute Player.jpg|Le Flageolet (The Flute Player), 1890, Arkansas Museum of Fine Arts
File:Berthe Morisot - Girl with Greyhound - 1893.jpg|Julie Manet et son Lévrier Laerte, 1893, Musée Marmottan Monet, Paris
File:Berthe Morisot - Bergère nue couchée.jpg|Bergère nue couchée, 1891, Thyssen-Bornemisza Museum, Madrid
File:Two Girls by Berthe Morisot.jpg|Two Girls, 1894, The Phillips Collection, Washington D.C.
</gallery>
Portraits of Morisot
<gallery widths"170px" heights"170px" perrow="6">
Image:Édouard Manet - Le Balcon.jpg|Detail from The Balcony by Édouard Manet, with the portrait of Berthe in the foreground, 1868
Image:Édouard Manet - Le repos.jpg|Berthe Morisot posing for The Rest, 1870, by Édouard Manet
Image:Édouard Manet - Berthe Morisot on a divan.jpg|Berthe Morisot on a divan couch, 1872, by Édouard Manet
Image:Berthe Morisot Manet Lille 2918.jpg|Portrait of Berthe Morisot with a Fan, 1874, by Édouard Manet
Image:Marcellin Desboutin - Portrait Berthe Morisot.jpg|Portrait of Berthe Morisot, 1876, by Marcellin Desboutin
Image:Manet - Berthe Morisot ruhend.jpg|Portrait of Berthe Morisot, 1882, by Édouard Manet
Image:Édouard Manet - Berthe Morisot au soulier rose.jpg|Berthe Morisot au soulier rose, 1872, by Édouard Manet. Hiroshima Museum of Art
Image:Pierre Auguste Renoir - Portrait Berthe Morisot and daughter Julie.jpg|Berthe Morisot and her daughter Julie Manet, 1894, by Pierre-Auguste Renoir
Image:Renoir Berthe Morisot.jpg|Berthe Morisot'', 1892, by Renoir
</gallery>
Art market
Morisot's work sold comparatively well. She achieved the two highest prices at a Hôtel Drouot auction in 1875, the Interior (Young Woman with Mirror) sold for 480 francs, and her pastel On the Lawn sold for 320 francs. Her works averaged 250 francs, the best relative prices at the auction.
In February 2013, Morisot became the highest priced female artist, when After Lunch (1881), a portrait of a young redhead in a straw hat and purple dress, sold for $10.9 million at a Christie's auction. The painting achieved roughly three times its upper estimate, and it exceeded the 2012 record of $10.7 million for a sculpture by Louise Bourgeois.
She was featured as the "A First Impressionist" in an article written by Anne Truitt in the New York Times on 3 June 1990.
From Melissa Burdick Harmon, an editor at Biography magazine, "While some of Morisot's work may seem to us today like sweet depictions of babies in cradles, at the time these images were considered extremely intimate, as objects related to infants belonged exclusively to the world of women."
Exhibition
{| class="wikitable"
! Selected Berthe Morisot Solo Exhibitions
! Date
|-
|Paris, Boussod, Valadon et Cie. Exposition de tableaux, pastels et dessins par Berthe Morisot.
|1892, 25 May – 18 June
|-
|Paris, Galerie Durand-Ruel. Berthe Morisot (Madame Eugene Manet): exposition de son œuvre.
|1896, 5–23 March
|-
|Paris: Galerie Durand-Ruel. Exposition Berthe Morisot.
|1902, 23 April – 10 May
|-
|Paris, Galerie E. Druet. Exposition Berthe Morisot.
|1905, January–February
|-
|Paris, Galerie Manzi-Joyant. Exposition Berthe Morisot.
|1912
|-
|Paris. Galerie Manzi-Joyant. Exposition Berthe Morisot.
|1914, April
|-
|Paris, Galerie Bernheim-Jeune. Cent oeuvres de Berthe Morisot (1841–1895).
|1919, 7–22 November
|-
|Paris, Galerie Marcel Bernheim. ''Réunion d'oeuvres, par Berthe Morisot.
|1922, 20 June – 8 July
|-
|Chicago, Arts Club of Chicago. Exposition of Paintings by Berthe Morisot. 3 p.
|1925, 30 January – 10 March
|-
|London, Ernest Brown & Phillips, The Leicester Galleries. Berthe Morisot Exhibition.
|1930, March–April
|-
|New York, Wildenstein Galleries. Berthe Morisot Exhibition.''
|1936, 24 November – 12 December
|-
|Paris, Musée de l'Orangerie. Berthe Morisot, 1841–1895.
|1941, Summer
|-
|Paris, Galerie Weil. Berthe Morisot, retrospective.
|1947
|-
|Copenhagen, NY Carlsberg Glyptotek. Berthe Morisot, 1841–1895: Mälningar: Olja och Akvarellsamt Teckningar.
|1949, 20 August – 23 October
|-
|Boston, Museum of Fine Arts, Boston. Berthe Morisot: Drawings, Pastels, Watercolors.
|1960, 10 October – 10 December
|-
|Paris, Musée Jacquemart-Andre, lnstitut de France. Berthe Morisot.
|1961
|-
|Paris, Galerie Hopkins-Thomas. Berthe Morisot.
|1987–88, April – 9 May
|-
|London, JPL Fine Arts. Berthe Morisot (1841–1895).
|1990–91, 7 November – 18 January
|-
|Paris, Galerie Hopkins Thomas. Berthe Morisot.
|1993, 15 October – 30 November
|-
|Lille, the Palais des Beaux-Arts, Berthe Morisot
|2002, 10 March – 9 June
|-
|Martigny, La Fondation Pierre Gianadda, Berthe Morisot
|2002, 20 June – 9 November
|-
|Washington DC, National Museum of Women in the Arts, Berthe Morisot: An Impressionist and Her Circle.
|2005, 14 January – 8 May
|-
|Spain, Madrid, Museo Thyssen-Bornemisza, Berthe Morisot: The Woman impressionist.
|2012, 15 November – 12 February
|-
|Québec, The Musée National des Beaux-arts du Québec, Berthe Morisot: Woman Impressionist.
|2018, 21 June – 23 September
|-
|London, Dulwich Picture Gallery, Berthe Morisot: Shaping Impressionism.
|2023, 31 March – 10 September
|-
|Genoa, Palazzo Ducale, Impression Morisot
|2024, 12–2 October, 025, 23 February
|-
|Turin, GAM (Gallery Modern Art), Berthe Morisot. Pittrice impressionista
|2024, 16–2 October, 025, 9 March
|}
See also
* Women artists
* Western painting
* History of painting
* Julie Manet
Notes
ReferencesSources
*
* Denvir, Bernard (1993). The Chronicle of Impressionism: An Intimate Diary of the Lives and World of the Great Artists. London: Thames & Hudson.
* Higonnet, Anne (1990). Berthe Morisot. New York: Harper & Row.
* Turner, Jane (2000). From Monet to Cézanne: Late 19th-century French Artists. Grove Art. New York: St. Martin's Press.
* Manet, Julie, Rosalind de Boland Roberts, and Jane Roberts (1987). Growing Up with the Impressionists: The Diary of Julie Manet. London: Sotheby's Publications.
* Shennan, Margaret (1996). Berthe Morisot: The First Lady of Impressionism. Stroud: Sutton Publishing.
Further reading
* Barnes, Julian. [https://www.lrb.co.uk/the-paper/v41/n17/julian-barnes/the-necessary-talent "The Morisot Sisters"] London Review of Books, vol. 41, no. 17, 12 September 2019.
* Cohen, Rachel. [https://www.apollo-magazine.com/berthe-morisot-comes-into-her-own/ "Berthe Morisot comes into her own"] Apollo. 6 October 2018.
* Meyers, Jeffrey (2005). Impressionist Quartet: The Intimate Genius of Manet and Morisot, Degas and Cassatt. Orlando: Harcourt.
* Mongan, Elizabeth (1960). Berthe Morisot: Drawings, Pastels, Watercolors, Paintings. New York: Tudor Pub. Co. (Charles E. Slatkin Galleries in collaboration with the Museum of Fine Arts, Boston exhibition).
* Rouart, Denis, ed. (1959). The Correspondence of Berthe Morisot with her family and her friends. New York: E. Weyhe. Denis Rouart was the son of Julie Manet and the grandson of Berthe Morisot. "Family Tree", in Greenwald, Diana Seave, ed. Manet: A Model Family. Boston: Isabella Stewart Gardner Museum, p. 101.
*
* Stuckey, Charles F. and William P. Scott with the assistance of Suzanne G. Lindsay (1987). Berthe Morisot: Impressionist. New York: Hudson Hill Press.
External links
, (1:58) Art Institute of Chicago
}}
*
*
*
* [http://womenintheactofpainting.blogspot.fr/2012/11/edma-and-berthe.html Edma Morisot, 1865, Berthe Morisot painting at her easel Private collection.]
* [http://www.ibiblio.org/wm/paint/auth/morisot/ Berthe Morisot] at the WebMuseum
* [http://www.thefamousartists.com/berthe-morisot/ Biography of Berthe Morisot]
*
* [https://www.barnesfoundation.org/whats-on/morisot Berthe Morisot: Woman Impressionist] Exhibition at the Barnes Foundation, Philadelphia, 21 October 2018 – 14 January 2019.
* [https://www.musee-orsay.fr/fr/agenda/expositions/presentation/berthe-morisot-1841-1895 Berthe Morisot (1841-1895)] Exhibition at the Musée d'Orsay, Paris, 18 June to 22 September 2019.
Category:Berthe Morisot
Category:1841 births
Category:1895 deaths
Category:Artists from Bourges
Category:19th-century French painters
Category:French Impressionist painters
Category:Burials at Passy Cemetery
Category:19th-century French women painters | https://en.wikipedia.org/wiki/Berthe_Morisot | 2025-04-05T18:26:45.156663 |
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