Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
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Ancient Romans at one time used human urine as an ingredient in their toothpaste.
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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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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 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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Originally, Du Pont, Inc. was a tiny gun powder mill in New Jersey.
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