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.
13
February 1865 is the only month in recorded history to not have a full moon.
83
The first bomb dropped by the Allies on berlin in WW2 killed the only elephant in the Berlin Zoo.
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Genghis Khan exempted the poor and clergy from taxes, encouraged literacy, and established free religion, leading many peoples to join his empire before they were even conquered.
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