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TIL: Conflict in Sudan generated that 15 million people are experiencing acute food insecurity

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4Xb7g TIL the first mathematical theorem to be created and proven on TV was on Futurama (The Prisoner of Benda). If two people could switch unique pairs of bodies only once, it requires only two extra individuals to return everyone to their original bodies.
9w7BG TIL the idiom "Keeping up with the Joneses" came from a comic strip of the same name that ran in U.S. newspapers from 1913-1940. It featured the McGinis family, often struggling to keep up socially and materially with their neighbors, the unseen Joneses.
VL40 TIL - Al-Aziz Uthman, Sultan Of Egypt And Son of Saladin, Tried To Tear Down The Great Pyramids at Giza, But After Removing Only ~400 Stones In 8 Months, Gave Up On The Expensive Project, Leaving A Gash On The Smallest Of The Three Massive Structures
WkyW4 TIL: Ozzy Osbourne from Black Sabbath once fell asleep during a driving test, waking up to a note saying 'you have failed'. He passed in 2009, age 60, on his 19th attempt.
dAkE TIL when cats are stalking their prey, they “chatter” their teeth because they are so intensely fixated on their prey that they are envisioning biting on them already. This is called: the “vacuum reaction”