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TIL of the Fermi paradox, a concept that states that the apparent lack of life in the universe is proof that intelligent life always destroys itself before it can expand into space

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ne88G TIL that Margaret Hamilton, known for her role as the Wicked Witch of the West, appeared on an episode of Sesame Street in 1976, playing the iconic character. The episode only aired once, however, as many children were traumatized at the sight of the witch.
M7oKW TIL: In the first half of the nineteenth century, thousands of black Americans fled from slavery and prejudice. They sailed to West Africa, and 1847 founded the nation of Liberia: a black ethnostate meant to be a haven for African Americans.
0wDP1 TIL The calves muscles help pump blood, The body is engineered so that when you walk, the calf muscles pump venous blood back toward your heart. The veins in your calf act like a reservoir for blood your body does not need in circulation at any given time.
XEPvE TIL The name of mid-90s fad, "Pogs" was actually an acronym for Passion/Orange/Guava, which was the type of juice that kids used the caps of when it was first invented in Hawaii
OG5x1 TIL flat escalators are called travelators