Avsnitt 16

Whenever a culture reaches a level of sophistication in literacy, science, and language, codes spring up spontaneously. As the social life of a community increases in complexity, the demands for private communication between two or more people inevitably lead to cryptology–a system of secret symbolic messages . We explore the rich history of communicating with secret symbols–from Egyptian hieroglyphics to Caesar's encrypted directives, from WWI and WWII codebreakers to cyberspace.