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TIL Smen is North African salted fermented butter that farmers in Southern Morocco will sometimes bury in the ground on their daughter's birth date and age it until the day that daughter gets married, where they will unearth and use it to season the food served on her wedding.

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78wm7 TIL that in 2023, a team of doctors in Boston treated brain malformation in a baby while it was still in womb, by using ultrasound guidance, a needle, and tiny coils that were placed directly into the abnormal blood vessels to stop blood flow.
RyX6 TIL Towers in New York can fake and exaggerate how many floors they have, using tricks like different sets of elevators to hide the missing floors
QN87E TIL Michael Shaara's book The Killer Angels, 1975 Pulitzer Prize for fiction, and the basis for the 1993 movie Gettysburg, reached the top of the NYT best seller list twenty years after being published. The Civil War battle novel is considered one of the best historic fictions ever written.
8aWvG TIL in 1984 NASA crashed a fully fueled Boeing passenger jet, with crash dummies as passengers and pilots into the Mojave desert. The crash was filmed from multiple angles at high speed in 16MM film. The knowledge gained from this test lead to major changes in airline flight safety standards.
d8BP7 TIL that an ex-girlfriend of J. D. Salinger, author of Catcher in the Rye, auctioned off intimate letters Salinger sent her during their relationship. One man, Peter Norton, bought all of the letters for a considerable sum and promptly returned them to Salinger.