Cryptanalysis of the Enigma by the letters on the top row of the Enigma keyboard. So, "continuation of message sent at 2330" was represented as "FORTYWEEPYYWEEPY". "Cribs" were fundamental to the British approach to solving Enigma keys, but guessing the plaintext for a message was a highly skilled business. So in 1940 Stuart Milner-Barry set up a special "Crib Room" in Hut 8. Foremost amongst the knowledge needed for identifying cribs was the text of previous decrypts. Bletchley Park maintained detailed indexes of message preambles, of every person, of every ship, of every unit, of every weapon, of every technical term and of repeated
The Origins of the Second World War The Origins of the Second World War The Origins of the Second World War is a non-fiction book by the English historian A. J. P. Taylor, examining the causes of World War II. It was first published in 1961 by Hamish Hamilton. Taylor had previously written "The Struggle for Mastery in Europe", which covered the period 1848 until 1918. As he later wrote in his autobiography: I wanted to be writing something and decided that I could carry on my diplomatic history from the point where the "Struggle for Mastery" left off. I had, I thought, done most of the