Leonardo Da Vinci made a robotic lion in 1515 that would walk, sway, open its mouth and move its tail - it even had a compartment that opened to present flowers.
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In the 1930's, American track star Jesse Owens used to race against horses and dogs to earn a living.
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A singing birthday card has more computing power than the allied forces in 1945.
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The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
In 1999, Pepsi, Inc. paid $0.00 in income tax!
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The last time American Green cards were actually green was 1964.
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No one knows who designed the first American Flag.
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