› added 5 years ago

85

TIL that in 1876, James Garfield, future 20th President of the United States, developed a proof of the Pythagorean Theorem that was published in New-England Journal of Education.

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dDAQQ TIL: In 2019, it was found that belief in ghosts and UFOs had increased since 2007 among Americans. Interestingly, men were more likely to believe in UFOs and women were more likely to believe in ghosts and witchcraft than the other gender.
l1Kr TIL the Supreme Court Ruled that Stripping Someone of Citizenship is ‘Cruel and Unusual’ Punishment, Prohibited by the Eighth Amendment to the Constitution
WPPd TIL Lyndon Johnson announced his hiring of Gerri Whittington, the first African-American White House secretary, by arranging for her to appear on the TV game show What’s My Line, wherein contestants attempted to guess her profession.
Wk0ZN TIL Stan Lee's last film cameo was in Teen Titans GO! To the Movies, with him saying "I don't care if it's a DC movie, I love cameos!"
6Z8Y TIL that 3 billion years ago, 2 black holes 19 and 31 times the mass of the sun collided, creating a monstrous black hole and rippling the fabric of spacetime.