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TIL in 1960, Congress created a medal equal to the Medal of Honor specifically to confer it upon four chaplains for actions in WWII.

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QKWe TIL that the F-22 Raptor is so stealthy that the 62 ft. long, 80,000 pound jet’s radar signature is equivalent to a metal marble.
jNbkj TIL of Vozrozhdeniya Island, a piece of land that was once in the Aral Sea and home to an abandoned Soviet bioweapons research facility
MeLQB TIL of Semantic Satiation: the psychological phenomenon in which repetition causes a word or phrase to lose meaning for the listener, who then perceives the speech as repeated meaningless sounds.
d86E8 TIL: the "law of the instrument", a cognitive bias that involves an over-reliance on a familiar tool. As Abraham Maslow said in 1966, "I suppose it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail."
e0DbE TIL that 1830's advertisements to entice people to move to Houston Texas, show the town as a bustling port city nestled next to a range of mountains, despite the port not built yet and the closest mountain over 500 miles away.