Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
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In ancient Greece, tossing an apple to a girl was a traditional proposal of marriage. Catching it meant that she accepted.
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The exact cause of death and burial site of Genghis Khan is unknown, because all of the 2000 funeral guests and 800 soldiers were killed in order to preserve the secret.
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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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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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In 1976 an LA secretary named Jannene Swift officially married a 50 pound rock in a ceremony witnessed by more than 20 people.
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