Enigma is an encryption device that was used by the German Nazis during the 2nd World War to encode secret messages. It was recently discovered by divers in the Baltic Sea. The machine was invented by Arthur Scherbius near the end of the 1st World War. The use of these machines made it very hard for the Allied Forces to intercept and decode the German’s coded messages. Near the end of the 2nd World War, the Germans destroyed most of these machines to prevent the Allied powers from accessing them.