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TIL about Nadja West: orphan to West Point to MD to first black, female Lieutenant General (3 stars)—her journey inspired by none other than Star Trek

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via reddit.com

ZajR TIL that a man named James Harrison who is also known as the man with golden arm has donated blood more than 1000 times which has saved more than 2 million unborn babies from Rehsus disease.
5VVaQ TIL that scientists believe that early human ancestors used to have three eyelids. One of the eyelids eventually became the small fold in the corner of human eyes today.
b9eGj TIL that a group of bears is called a "sleuth of bears". Also: a sounder of boars, clowder of cats, mob of cattle, coalition of cheetahs, bask of crocodiles, pod of dolphins, bed of eels, cast of falcons, business of flies, band of gorillas, boil of hawks, kindle of kittens, barrel of monkeys
OGeme TIL that as of 2021 there are only 25 blimps still in existence and only half of those are still in use
vP14x TIL about Thomas Midgley, considered the Most Harmful Inventor in History who invented leaded gasoline and chlorofluorocarbons (CFCs), Both of these inventions caused a great magnitude of damage to both human and planetary health.