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TIL LaGuardia Airport was built on the site of a former amusement park owned by piano manufacturer William Steinway.

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ne7Ko TIL Jimmy Carter was the first US president to be born in a hospital.
R55X4 TIL Einstein's great breakthroughs came from visual experiments performed in his head rather than the lab.
oymY TIL: There is a frog from Africa, Trichobatrachus robustus, that breaks a bone in its toe pad, pushes the sharp broken bone through it’s skin, and tries to shank you with it if it feels threatened.
doXZ TIL Issac Newton invented the ridges along the edges of coins, still in use today, to prevent theft
O0MR TIL The textbook industry is considered a “broken market” by economists and it has little internal competition