Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
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The flushing toilet was invented in 1596, not by Thomas Crapper as most people think, but by Sir John Harington.
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If a surgeon in Ancient Egypt lost a patient while performing an operation, his hands were cut off.
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In Ancient Greece, if a woman watched even one Olympic event, she was executed.
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Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
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There's a bar in Ireland (presently named Sean’s Bar) that was opened in 900AD.
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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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