Bletchley Park is the location where Allied cryptologists broke the German Enigma cipher and other German ciphers. Cracking the German navy's Enigma cipher was crucial in the battle against U-boats. Up until the time the naval Enigma was cracked U-boats were sinking Allied ships faster than new ships could be built.

Cracking the Army and Luftwaffe Enigma allowed the Allies to know German plans for defending against the Normandy invasion and conducting the war in North Africa.

The first digital computer, Colossus, was built at Bletchley Park as part of the war effort. The secret work done at Bletchley Park wasn't revealed until the early 1970s, over 25 years after World War 2 ended. Because of the extreme secrecy, many inventions developed at Bletchley were not revealed for years and Bletchley personnel never received the credit they were due.

Bletchley Park does not receive any funding from the British or American government. Bletchley Park relies on contributions from the public to maintain its historic buildings and machines. Advantura has contributed over $6000 to Bletchley Park during the last three years. Please consider visiting their web site and making a contribution to this historic facility. Thank you.