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TIL "escalator" was originally trademarked by a company but in 1949 ajudged to be public property due to popularity

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4l46 TIL, even though the Unseen University predates Hogwarts, Terry Pratchett was repeatedly asked if he got the idea from Harry Potter. He jokingly claimed he did. And added that, “I of course used a time machine.”
ep0OL TIL Wall Street organizations uses a stock-buying routing method called Payment for Order Flow (PFoF) that's banned in Canada, U.K., and Australia - due to a high potential for fraud and manipulation.
GYMjj TIL that Robert Oppenheimer, "the father of the atom bomb" and the head of the Manhattan Project, once tried to poison his advisor for making him do experimental work instead of theoretical physics.
Egkrd TIL brunette Vikings—usually men—would use a strong soap with a high lye content to bleach their hair. In some regions, beards were lightened as well.
VKy8 TIL Jim Lahey ( John Dunsworth ) is Sarah’s (Sarah Dunsworth ) father in real life