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On this day in movie history October 18

1931 Thomas Edison dies at 84. Considered the fourth most prolific inventor in history, holding 1.093 patents, including the motion picture camera.

10 high-school dropout millionaires

Tumblr co-founder David Karp, 26, just sold his blogging platform to

Yahoo! for $1.1 billion. By doing so, he joins a surprising list of the

rich, famous and diploma-less.