On This Day In History On This Day In History: British Cryptologists Broke ENIGMA The Secret Code Used By Germans – On July 9, 1941 MessageToEagle.com | July 9, 2016 MessageToEagle.com – On July 9, 1941, British cryptologists broke the secret code – Enigma – used by the German army to direct ground-to-air operations on the Eastern front. Read More