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TIL - during a test flight in 1961, a DC-8 became the first passenger jet to break the sound barrier and go supersonic. Chuck Yeager was the chase plane pilot.

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BgwrW TIL Elvis Presley’s last name should’ve been Wallace
WPP9 TIL that the FBI ran COINTELPRO, an illegal series of projects operated to suppress “subversive” movements like civil rights (including MLK) or growing third parties. These targets faced tricks like psychological warfare, killings (together with police departments), and slander through newspapers.
ANPX7 TIL that C.S. Lewis and Aldous Huxley both died on November 22nd, 1963. However, their deaths were overshadowed by the more prominent death of John F. Kennedy on the same day.
a86G9 TIL in 1976 , LA Dodgers catcher Steve Yeager was impailed in the throat by San Diego Padre's Bill Russell's broken bat, resulting the the MLB issuing a throat guard rule for catchers.
xY0 TIL that some jumping spiders possess object permanence, or the knowledge that something you can’t see is still there, which humans don’t develop until 8-12 months old