During World War II, Bletchley Park was the location of the United Kingdom’s codebreaking establishment. Codes and ciphers of several countries were deciphered, most famously the German Enigma. The high-level intelligence produced by Bletchley Park was codenamed Ultra. While the exact influence of Ultra on World War II is debated, it is frequently credited with hastening the defeat of Germany by two years. In wartime Bletchley Park was sometimes referred to as Station X (because it housed the tenth in a series of radio stations – X in Roman numerals represents 10). Among the famous cryptanalysts working there, the most famous was Alan Turing. In 1943, the Colossus, the world’s first programmable digital electronic computer, was designed at Bletchley Park by Max Newman and his team.
The site is now a museum and open to the public during the summer.