What is the origin of the phrase break the code?

Before writing, man was keeping secrets. Cryptology (Greek 'cryptos' = hidden, 'logos' = writing) has always had a vernacular all of its own, parallelling the development of technic. To 'decode' is to use the correct method of 'encoding' backwards, the way it was meant to be. To decypher (un-calculate) without the method or key to the code has always been known as 'breaking' due to the brute force methodology necessary to accomplish. I'll give you three 'keys' to the discovery of an amazing codebreaking adventure: Stevenson, Enigma and SHARK ... have fun.