There's a bar in Ireland (presently named Sean’s Bar) that was opened in 900AD.
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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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"Yo momma" jokes/insults were invented by Shakespeare.
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The ‘@’ sign is centuries old, and was used in Europe to denote a unit of weight (the “arroba”) equivalent to 25 lbs.
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In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
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An underwater forest off the coast of Alabama that is 50,000 years old was uncovered by Hurricane Katrina.
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