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TIL in 1996 a study was conducted that determined approx. 79% of all paper currency in the US had cocaine residue on it.

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d8dA8 TIL in 1991, actor Charlie Sheen watched the 1985 film Flower of Flesh and Blood and became convinced he was watching actual homicides and contacted the FBI. The Bureau initiated an investigation but closed it after the producers showed how they did it with special effects.
6Ej1X TIL that humans can regenerate some of their organs through a process called compensatory hypertrophy. When part of the liver is removed or destroyed, the remaining portion grows to the original size and allows the liver to function as it did before. Kidneys and lungs can also similarly compensate.
VMPAB TIL in the 1880s Lamar Thompson was so disgusted that saloons and brothels were tempting Americans into “vices” and hated the "sinful" behavior of fellow humans who engaged in sex, drinking and going out for “fun” that he invented the roller coaster to distract people from sinning.
xWJ1 TIL in 2001 BMW released a series of short films called “The Hire” that featured famous filmmakers, starred Clive Owen as the “Driver”, and highlighted the performance aspects of BMW cars. It was a huge success and helped increase car sales 12% over the previous year.
9ggp TIL that President Calvin Coolidge was known as “Silent Cal” for being a man of small words. An example of this is part of a story that says that a matron, seated next to him at a dinner, said to him, “I made a bet today that I could get more than two words out of you.” He replied, “You lose.”