The title refers to the 1932 Summer Olympics, officially known as the Games of the X Olympiad, which was held in 1932 in Los Angeles, California.
Mickey's number is 13, in the Cartoon "Barnyard Olympics" from 1932.
At the end of the Cartoon "Barnyard Olympics" from 1932, Goofy or Dippy Dawg's laugh can be heard for the first time.