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TIL that the main ingredient of Pepto Bismol, Bismuth Subsalicylate, was first used not only to prevent life threatening diarrhea from Cholera, but as a surface disinfectant because of its bactericidal properties. The medicine kills bacteria colonizing the intestinal mucosa that cause stomach upset.

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mxVXE TIL the Black Plague in the 13th century was thought to be contagious through air because of the bad stench it made, so incense and perfumes were used to "cure" it.
KOwxa Popcorn is truly ancient. Archaeologists have uncovered popcorn kernels that are 4,000 years old. They were so well-preserved, they could still pop. In 2012, scientists discovered popcorn cobs that were grown even earlier — more than 6,000 years ago.
DvAD TIL baby & juvenile dinosaurs have been mistakenly labeled as whole new dinosaur species because their younger skeletons differ so much from their adult form.
69Rx8 TIL Bonny Bakley, wife of actor Robert Blake, had nine other husband's before Blake. She was murdered in 2001, no one was ever convicted of the crime.
D1jye TIL a Polynesian man named Tupaia drew an incredibly accurate map for Captain Cook, but it was misunderstood to be badly made and unusable. The map puzzled people for centuries until some researchers finally figured out how to use it correctly.