Alan Mathison Turing was an English mathematician, computer scientist, logician, cryptanalyst, philosopher and theoretical biologist. He was highly influential in the development of theoretical comput
Turing in 1951
English Heritage blue plaque in Maida Vale, London, marking Turing's birthplace in 1912
Turing at age 16, c. 1928 – c. 1929
Turing (seated second from left) in Cornwall, with fellow Shirburnians: Edwin Davis, John Bennett, Peter White, Peter Hogg (seated second from right), and Duncan Carse, in April 1930.
The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication. It was employed extensively by Nazi Germany du
Alan Turing
…breaking of German ciphers, including improvements to the pre-war Polish bomba method, an electromechanical machine that could find settings for the Enigma machine. He played a crucial role in cracking intercepted messages that enabled the Allies to defeat the Axis powers in the Battle of the Atlantic and other…
Military Model Enigma I, in use from 1930
A memorial in Bydgoszcz, Poland, to Marian Rejewski, the mathematician who, in 1932, first broke Enigma and, in July 1939, helped educate the French and British about Polish methods of Enigma decryption
Enigma rotor assembly. In the Enigma I, three movable rotors are sandwiched between two fixed wheels: the entry wheel, on the right, and the reflector on the left.