Bletchley Park

Alan M Turing and colleagues working on the Ferranti Mark I Computer, 1951.

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Your guide to Alan Turing: the man, the enigma

Wrens operating the Colossus computer at Bletchley Park, 1943

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Your 60-second guide to Bletchley Park

Staff hard at work at Bletchley Park. The people who worked here did so under conditions of utmost secrecy, and with little idea of how their work slotted into the grand scheme of things. (Photo by SSPL/Getty Images)

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Bletchley Park: Britain’s wartime intelligence factory

Wrens worked as code-breakers at Bletchley Park.

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Female codebreakers: the women of Bletchley Park

Civilian and service personnel work together at code-breaking. (Photo by SSPL/Getty Images)

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The women of Bletchley Park

An example of the Zimmermann Telegram

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The Zimmermann telegram: the telegram that brought America into the First World War

Code-breaking personnel at Bletchley Park, 1943. (Photo by Bletchley Park Trust/SSPL/Getty Images)

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The evolution of British code-breaking

A female computer programmer demonstrates a new computer in the 1960s.

The changing role of women in British computing

Adolf Hitler is welcomed by supporters at Nuremberg, 1933. (Photo by Hulton Archive/Getty Images)

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Enigma before Bletchley: the German spies who betrayed Hitler

7th January 1926: Bletchley Park, Buckinghamshire, HQ of the Allied cryptopgraphers during WW II and where the German 'Enigma' and 'Lorenz' codes, both considered unbreakable, were deciphered. (Photo by Evening Standard/Getty Images)

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7 phases of the history of Artificial intelligence

Bletchley Park

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WW2 espionage: The spies who surprised me

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Secret Days: Codebreaking in Bletchley Park

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Bletchley Park codebreakers honoured

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Q&A: Which of Bletchley Park’s decodings was most significant?