It was estimated that Poland's input in breaking the Enigma code helped shorten the Second World War by approx. 2 years! 76 years ago on July 25th 1939 one of the most important events in the history of intelligence took place in the woods outside Warsaw - Polish Cipher Bureau revealed its Enigma-decryption techniques to British & French allies. At a subsequent meeting, Alan Turing travelled to Paris from Bletchley Park to meet Marian Rejewski, Henryk Zygalski and Jerzy Różycki, the three Polish

Day after day, Elizebeth Friedman sparred with paper and pencil against the codes generated by the German Enigma machine. Until one day she found a chink in its armor. Tune in or stream THE CODEBREAKER Mon Jan 11 on PBS → pbs.org/wgbh/americanexperience/films/codebreaker | American Experience | PBS