Until President Kennedy was killed, it wasn't a federal crime to assassinate the President.
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Queen Elizabeth II served as a mechanic and driver in World War 2.
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During the Black Plague, it was thought that bad smells were the cause of the plague. "Plague Doctors" therefore wore masks with long beak-like noses stuffed with flowers or smoke to hide the smells.
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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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The Taj Mahal took 20 years and 20 thousand men to finish!
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In 1700s, the deer skin was a common medium of exchange between the trading settlers and the native Red Indians in America. This is how a buck became a slang for a dollar.
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