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TIL When It debuted in 1929, 7-Up soda contained lithium citrate, the compound now used by psychiatrist as mood stabilizer for people with bipolar disorder. It was initially marketed as Bib-Label Lithiated Lemon-Lime soda.

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9KBD TIL There is a wasp that lays its eggs inside ladybugs. The ladybug lives normally until the wasp larva emerges, immobilizes it, and builds a cocoon on the ladybug’s leg. The ladybug remains alive in a zombified state, and will even fight off predators, allowing the cocooned wasp to safely mature.
wjoJ TIL That Elevators contain mirrors in order to make the elevator seem larger to help people who are claustrophobic.
VBQdD TIL during an 12 year period from 1822 to 1833, four future US Presidents would all be born within the state of Ohio - Ulysses S. Grant, Rutherford B. Hayes, James A. Garfield, and Benjamin Harrison
KYZla TIL During a heated discussion in the Roman Senate, Julius Caesar received a letter. His fierce opponent Cato, thinking it would incriminate Caesar, had the letter read. It was a love letter from Cato's sister.
ape9 TIL Aaron Paul, Jesse from “Breaking Bad”, was once a contestant on “The Price is Right”.