In 1963, the US Military created an artificial ring around Earth, similar to that of the planet Saturn. The ring was made of copper needles and was used for worldwide communications in the case that the Soviets disabled all other methods of communication.
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A monk had once written over a book that contained information about calculus that was written by Archimedes in ancient Greece that could have made us 100 or even 1000 years more mathematically and technologically advanced.
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To take an oath, ancient Romans put a hand on their testicles
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There are pictures of Knights fighting Snails in old Medieval manuscripts - and nobody knows why.
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Leonardo da Vinci was dyslexic, and he often wrote backwards.
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Early Romans used to use porcupine quills as toothpicks.
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There's a bar in Ireland (presently named Sean’s Bar) that was opened in 900AD.
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