The resort was founded by Walt Disney in 1955 in Anaheim, California. Disneyland soon became famous all over the world as a place that parents could enjoy with their children. Disneyland Hotel adjoins the park. In 2001, the area was officially named "Disneyland Resort" with the opening of Disney's California Adventure Park, two new resort hotels, and Downtown Disney. Disneyland celebrated its fiftieth anniversary on July 17, 2005.
Credit for the pics:
http://lostworld.pair.com/disneyland/trip_reports/jun04/index.html
http://en.wikipedia.org/wiki/Walt_Disney_Parks_and_Resorts#Tokyo_Disney_Resort