History of Walt Disney Company By pgrover Oct 16, 1923 Walt Disney Company started by Walt and Roy Disney Nov 18, 1928 First appearance of Mickey Mouse in Steamboat Willie Dec 21, 1937 First feature-length animated film, Snow White and the Seven Dwarfs premiers Apr 2, 1940 First stock issued Jul 17, 1955 Disneyland opens in Anaheim, California Dec 15, 1966 Walt Disney dies Oct 1, 1971 Walt Disney World opens in Orlando, Florida May 5, 2006 Disney acquires Pixar Animation Studios
