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 Alan Turing, Harry Golombek, Gordon Welchman, Hugh Alexander, 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.[1] 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.[a] 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.[2] 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.
^Hinsley 1996
^"Bletchley Park Welcomes 2015'S 200,000th Visitor". Bletchley Park. 26 August 2015. Archived from the original on 2 February 2017. Retrieved 25 January 2017.
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BletchleyPark is an English country house and estate in Bletchley, Milton Keynes (Buckinghamshire), that became the principal centre of Allied code-breaking...
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mathematician Max Newman at the Government Code and Cypher School (GC&CS) at BletchleyPark. Alan Turing's use of probability in cryptanalysis (see Banburismus)...
During his interrogation by Nock, Turing tells of his time working at BletchleyPark during the Second World War. In 1928, the young Turing is unhappy and...
be picked up and decrypted by Allied code-breakers headquartered at BletchleyPark, to give the intelligence known as Ultra. In Germany such orders were...
World War, Turing worked for the Government Code and Cypher School at BletchleyPark, Britain's codebreaking centre that produced Ultra intelligence. He...
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English cryptanalyst and numismatist who worked as a code-breaker at BletchleyPark during the Second World War. Although she did not personally seek the...
south London, and forwarded to the Government Code and Cypher School at BletchleyPark (BP). Some were deciphered using hand methods before the process was...
equipment and techniques. Gordon Welchman, who became head of Hut 6 at BletchleyPark, wrote: "Hut 6 Ultra would never have got off the ground if we had not...
produced in 1939 at the UK Government Code and Cypher School (GC&CS) at BletchleyPark by Alan Turing, with an important refinement devised in 1940 by Gordon...
From this beginning, the British Government Code and Cypher School at BletchleyPark built up an extensive cryptanalytic capability. Initially the decryption...
Gordon Radley, was asked for help by Alan Turing, who was working at BletchleyPark, the government codebreaking establishment, 50 mi (80 km) north west...
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museums: the BletchleyPark complex, which houses the museum of wartime cryptography; the National Museum of Computing (adjacent to BletchleyPark, with a...
Party of Great Britain. In 1942 and 1943 Cairncross worked at GC&CS, BletchleyPark in Hut 3, on Ultra ciphers. He had access to communications of the German...
codebreakers of BletchleyPark". The Guardian. Archived from the original on 7 February 2019. Retrieved 14 October 2018. "Bletchley's code-cracking Colossus"...
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This is a list of people associated with BletchleyPark, the principal centre of Allied code-breaking during the Second World War, notable either for their...
of the 10,000 people who worked at BletchleyPark. The following is a list of women who worked at BletchleyPark. Helene Aldwinckle Margaret Allan (racing...
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Randell wrote to Prime Minister Ted Heath regarding the wartime status of BletchleyPark, and obtained the first-ever admission of the existence of the wartime...
Michael Arbuthnot Ashcroft (1920–1949) was a code breaker at BletchleyPark during the Second World War, working in Hut 8 under Alan Turing. Ashcroft was...
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