405BC Greek General Lysander of Sparta received a
message written in code on the inside of his servant's belt.
When he wound the belt around a wooden batton he discovered an
urgent message. Persia was planning to attack! General Lysander
set sail and was able to defeat Persia!

CRYPTANALYSIS - the science of code-breaking had begun.

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for more information on early codes in history.

2082AD U.S. Inventor Marcy Winthrop creates an innocent
looking gold decoder ring with recent advances in artificial
intelligence. Using a microchip 1/1000th the size found at the
beginning of the 21st century, the ring will be able to break
secret codes in every known language and dialect.