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"On This Date in History" Calendar
3 October 1940: U.S. Army and Navy agreed to "odd/even" day division of effort on Japanese diplomatic cipher.
Check out the Cryptologic Bytes Archives for a wide variety of articles on all topics related to cryptology, codes and ciphers, related publications, Museums, and more.
Special Note - to play our Amanita Whitehat online cybersecurity games - please open the game pages on a computer or tablet with a keyboard. Thank you!