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TIL 100 years ago in 1922 during the month of May there were more than 10 lynchings of African Americans in the state of Texas

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ABNd TIL of chlorine trifluoride: The Nazi “super weapon” so dangerous the Nazis never used it.
DBEe TIL that there are no natural lakes in Maryland
GYkOG TIL that the term "counting sheep" probably originated when early sheep herders couldn't get to sleep at night because they were worried about all of the sheep in their field. So they'd soothe themselves by counting the herd up to make sure they were all there.
X0Mwj TIL Mercury was still in use for hat making in the U.S. until the 1940's.
pYdme TIL that we can never travel at the speed of light according to our current understanding of the physics of the universe because to travel at speed of light, we would need infinite amount of energy which is not possible. Quite a revelation after watching 100s of sci-fi movies.