 One of the earliest descriptions in classical literature of applying the knowledge of English letter frequency to solving a cryptogram is found in Edgar Allan Poe's famous story "The Gold-Bug", where the method is successfully applied to decipher a message instructing on the whereabouts of a treasure hidden by Captain Kidd.Letter frequencies also have a strong effect on the design of some keyboard layouts.The most frequent letters are on the bottom row of the Blickensderfer typewriter, and the home row of the Dvorak keyboard layout.