[["Disney World opened October 1, 1971, with a single theme park, the Magic Kingdom. In1971, tickets cost only $3.50, and there were rip-off ticket books like you might use at a carnival or fair now.", 71.0], ["Disney World first opened in 1965. Disneyland opened 10 years earlier in 1955.", 50.0], ["Walt Disney World's Magic Kingdom Park opened on October 1, 1971. In the dedication ceremony Roy O. Disney, said \"May Walt Disney World bring Joy and Inspiration and New Knowledge to all who come to this happy place.\"", 45.0], ["October 1, 1971.", 15.0]]
when was disney world first open
geography,disney