It is the epitome of fame when one can be identified solely by one name. Mention the names Elvis or Sinatra, and everyone knows that you are referring to the famous entertainers. Mention Washington or Lincoln, and most will quickly realize that these are U.S. Presidents. The same can be said for Houdini, the world-famous magician.
Harry Houdini is likely the greatest and most well-known magician of all time. While his tricks are not mind-shattering by today's standsards like they were during the early days of vaudeville, he was the master showman of his field. He knew how to promote himself and his efforts are still studied by innumerable magicians of today.