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TIL An independent Northern counterfeiter named Samuel C. Upham made so much fake Southern money during the American Civil War that experts think it made up around 1-3% of the total currency supply of the Confederacy.

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OGAX7 TIL that Earth is the most dense planet in the Solar System while Saturn, the least dense planet, has a density lower than water
4XAAX TIL for the first Harry Potter film, some scenes were filmed twice, with the actors saying 'Philosopher's Stone' for the UK version and 'Sorcerer's Stone' for the US version.
4XYnb TIL the Comanche code word for Adolf Hitler (used by the Code Talkers during WWII) was “crazy white man.”
DQKgY TIL: The professor of psychology at UB ,Sally Farley, found that you can determine relationship status through 1 second snippets of laughter. Friend laughter is louder, more relaxed, and natural. Romantic laughter more feminine-sounding, baby-like, submissive, and less pleasant.
epnYD TIL of water hole in Death Valley Nevada devil’s hole. Not affected by rainwater indicating ancient water. Connected to vast aquifer. Water sloshes around during quakes up to 2000 miles away like bathtub with waves up to 2m. Quakes from Chile and Japan have affected the water surface here