The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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Leonardo da Vinci was dyslexic, and he often wrote backwards.
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The universally popular Hershey bar was used overseas during World War II as currency.
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In 1518, a "dancing plague" struck Strasbourg, Alsace, whereby hundreds of people danced fervently in the streets over the period of a month. Some suffered heart attacks or strokes, and many others died from sheer exhaustion. It remains unexplained.
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Henry Ford was Charles Lindbergh's first passenger in the Spirit of St. Louis.
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