A Cunning Chronicle of the 50 Codes That Altered The Course of History and Change the World From the bestselling author of Bletchley Park Brainteasers and The Scotland Yard Puzzle Book. There have been secret codes since before the Old Testament, and there were secret codes in the Old Testament too. Almost as soon as writing was invented, so too were the devious means to hide messages and keep them under the wraps of secrecy. In 50 Codes that Changed the World, Sinclair McKay explores these uncrackable codes, secret cyphers and hidden messages from across time to tell a new his 50 Codes that Changed the World - Sinclair McKay od authora Sinclair McKay a nakladatelství za skvělé ceny na e-shopu Martinus. cz.