Timeline Cryptography - Introduction Besides oral conversations and written language many other ways of information-transport are known: like the bush telegraph, drums, smoke signals etc. Those methods are not cryptography, still they need en- and decoding, which means that the history of language, the history of communication and the history of cryptography are closely connected to each other The timeline gives an insight into the endless fight between enciphering and deciphering. The reasons for them can be found in public and private issues at the same time, though mostly connected to military maneuvers and/or political tasks. One of the most important researchers on Cryptography through the centuries is David Kahn; many parts of the following timeline are originating from his work.

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Nero Nero's full name was Nero Claudius Caesar Augustus Germanicus (37-68 AD). Nero was Roman Emperor from 54-68 AD; during the first years in power he stood under the influence of his teacher Seneca. In this period he was very successful in inner politics and abroad, for example in Britannia. Soon he changed into a selfish dictator, had his brother, mother and wife killed and probably burnt Rome, blaming the Christians for it. More than in political affairs he was interested in arts. when he was dismissed in 68, he committed suicide.

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