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TIL that Thomas Jefferson resigned as Secretary of the State under George Washington and his letter of resignation has been transcribed and is still in the library of Congress today.

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via reddit.com

6YOJ TIL scientists have dosed naked mole rats with carcinogens and radiation, yet they have never been observed to develop cancer. They tolerate acid, live 6x longer than other rodents, they hardly age, they survive long periods of oxygen deprivation and can live in heavy metal polluted areas.
boM0 TIL that a Norwegian company in 1959 drove a three-ton block of ice from the Arctic Circle to the Equator, without refrigeration. They lost only 336 kg.
9PvQ TIL that a “Gay Face” is scientifically verifiable.
5Zpr TIL an octopus called Inky escaped from his tank at a New Zealand aquarium by finding a weak spot in the glass, dragging himself along the floor and escaping through a pipe that led to the ocean
pbVp TIL that the civil rights song “Strange Fruit” made famous by Billie Holiday and Nina Simone was written by a white, Jewish, New York high school teacher who was a member of the Communist Party.