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1928�27-year-old Walt Disney introduced his first animated cartoon, Plane Crazy. Its
lead character, Mickey Mouse, would also appear in the first animated cartoon to use sound, Steamboat Willie.
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1921�Albert Einstein came to the U.S. to lecture at Columbia University about his
theory of relativity.
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Retrieved from the World Wide Web (12/2/01) http://archer2000.tripod.com/
Forsee, Aylesa. Albert Einstein: Theoretical Physicist. New York: The Macmillan Company, 1963.
Finch, Christopher. The Art of Walt Disney. New York: Harry N. Abrams, Inc., 1975.
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