Cryptography in Wartimes
Revolutionary War
World War I
World War II
Cold War
Decoder
Glossary
Process Paper
Bibliography
A Key to Understanding How Secret Communication Changed History
By Lilly Bese and Danielle Islas
the German Enigma used in World War 2
(picture by
Elizabeth Hunter on
http://www.apocalypse.org/pub/u/hunter/images/scan-meh/copenhagen/1051enigma.html)