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TIL That More than 60% of U.S. smokers have unsuccessfully tried to stop smoking in the past year, a 2017 study found.

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eNmJ TIL Chess was invented in India
wLk41 TIL Tetris is addictive because it presents a continuous stream of incomplete tasks. Fulfilling those tasks gives players a constant sense of achievement.
5Y5aQ TIL of Operation Vegetarian a British WWII project to introduce anthrax into German beef and dairy herds and possibly spread to the human population.
E1rWX TIL On a trip to Nepal, Apollo astronaut Stu Roosa met Nepalese who believe the spirits of their dead reside on the Moon. Roosa could not understand why a few of the local citizens treated him like a god, nor why they were distressed when he told them he saw no one else on the Moon
vdL TIL J.K. Rowling told Alan Rickman (Severus Snape) secrets about his character and the final books, before they were written, so he could better develop his character.