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TIL that the sharpest object known to man is a tungsten needle that tapers down to the thickness of ONE ATOM.

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OG5ma TIL that Central Park was developed by claiming eminent domain and acquiring land previously owned by roughly 1,600 free African-American inhabitants
9YW1r TIL actress Glynis Johns originally thought she was being offered the role of Mary Poppins. To soften the blow of telling her she was being cast as Mrs. Banks, Walt Disney announced she'd get her own song, then quickly called the film's songwriters, who adapted a deleted song into Sister Suffragette
YEQZ TIL On British Airways Flight 5390 the Captain was sucked out of the cockpit when a faulty window blew out at 17,300 ft. With only his legs remaining in the plane, the quick thinking crew held onto him for 22 minutes till they safely landed. He survived.
ne0mB TIL in Sydney there is an annual duck fashion show
O8RL TIL there is a unique species of octopus called “mimic octopus” that has the ability to mimic other sea creatures like sea snakes, lionfish, flatfish, brittle stars, giant crabs, sea shells, stingrays, jellyfish, sea anemones, and mantis shrimp. It also intelligently mimic it based upon the threat.