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TIL that the first recorded use of the word "hello" as a greeting was in 1827

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pYRRN TIL that nature often follows the Fibonacci sequence, AKA the golden ratio. Flowers follow this sequence is several ways, including the number of petals a flower has (Lily 3, Buttercups 5, daisies 34) and the distribution of seeds, such as the sunflower, who’s seeds form a perfect spiraling pattern.
QN5Ld TIL that in 1978, the actor who plays Darth Vader publicly spoiled the “I am your father” twist in Empire Strikes Back two years before the movie debuted
KOEOE TIL that Charles Darwin ate every animal he ever discovered
loKpG TIL that the hymen is not a membrane that is broken during the first vaginal penetration of a woman, but rather it is a fold that is stretched during penetration and may or may not tear and bleed.
gRA7 TIL mountains on Saturn’s moon Titan are named after mountains in Middle-Earth