More than 13,000 Conversos were put on trial during the first 12 years of the Spanish Inquisition. Hoping to eliminate ties between the Jewish community and Conversos, the Jews of Spain were expelled in 1492 ..
A second reason, specifically for using Morse Code during the Second World War, was encoding... Nowadays equipment exists to take an outgoing radio signal and automatically encrypt the data or voices during transmission, this is 'on-line' encryption...
How to Decipher a Secret Code. Ever since the human race developed language, we've used codes and ciphers to obscure our messages. The Greeks and Egyptians used codes to transfer private communications, forming the foundation of modern code breaking. Cryptanalysis is the study of codes and how to break them. It's a world of secrecy and subterfuge, and it can be a whole lot of fun.