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TIL that on August 5, 1981, following the PATCO workers’ refusal to return to work, Ronald Reagan fired 11,345 striking air traffic controllers who had ignored the order

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N9RJ TIL the US Navy exploded several 500 ton shots of TNT in Hawaii during 1965 to determine the damage caused by nuclear weapons without radiation risks. The craters left behind are inland but connected to the Pacific ocean underground.
LkWPr TIL that Saturns’ rings are, cosmically speaking, a very brief event. We are about halfway through their 200 million year lifespan and are very lucky as a species to be alive to witness them. “Some velociraptor with a telescope looking at Saturn would not have seen rings.”
mxoKy TIL all mammals, except monotremes (duck-billed platypus and echidnas) and humans, have whiskers.
DQmwp TIL the Giant Anteater is the most endangered mammal in Central America. They are the closest living relative to the sloth. Both anteaters and sloths are descendants of Megatherium, a 20 foot long ground sloth weighing 8000lbs
grDb9 TIL Native Americans continued practicing slavery after the Civil War, until they were forced to abolish it by the US Government.