History of Cryptography
Including Ceaser Cypher,Hieroglyphics and the enigma code
The Enigma machine is a piece of spook hardware invented by a German and used by Britain's code breakers as a way of deciphering German signals traffic during World War Two.
Hieroglyphics was a way of writing formed by Ancient Egyptians during their development stages.
The Roman ruler Julius Caesar (100 B.C. – 44 B.C.) used a very simple cipher for secret communication. He substituted each letter of the alphabet with a letter three positions further along.