Disney turns 100. A timeline of key events

In this July 17, 1955, file photo, children sprint across a drawbridge and into a castle that marks the entrance to Fantasyland at the opening of Walt Disney’s Disneyland in Anaheim. Oct. 16, 1923: Walt and his brother Roy, sign an agreement to produce an animated film series called the “Alice Comedies.” They call their company Disney Brothers Studio. 1928: Disney introduces the character Mickey Mouse with the release of “Steamboat Willie.” 1937: Disney releases its feature-length film, “Snow White and the Seven Dwarfs,” breaking new ground in animated storytelling. 2003: Roy Disney, nephew of Walt Disney, quits the company’s board and calls for the resignation of Eisner, saying the entertainment conglomerate has “lost its focus, its creative energy, and its heritage.” 2005: Walt Disney Co. directors select Robert Iger to succeed Eisner as president.