The Evolution of Encryption
1932 CE - Poland
Sometime around 1932, the Polish mathematician Rejewski breaks the code to the German cipher codenamed "Enigma". This system was used througout Germany during World War II, and after being broken allowed the Allies access to extreme sensitive communications on Nazi activities. A rotor machine with rotating gears of code, the Enigma would have been close to impossible to break by the cryptologists of the time period, but several units and codebooks were captured.
The information gained from the broken Enigma code was codenamed ULTRA by the Allied forces, and some historians have theorized that this intelligence hastened the end of the war in Europe by up to a year or more.
The following is an audio interview from one of the American radio operators who intercepted sensitive German audio transmissions during the Second World War.