30 Random Disney Facts You Didn't Know About

In 1933, Walt Disney stated that Mickey Mouse’s birthday was October 1, 1928, since that was “the day on which his first picture was started”.

However, in 1978, Dave Smith, founder of the Disney Archives, changed the date to November 18, 1928, the premiere of Steamboat Willie. The 1928 animated short officially debuted Mickey and Minnie Mouse to the world, which meant that date was Minnie’s birthday, too.