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TIL: The symbol “lb” for pound comes from an abbreviation of the constellation Libra, the scales.

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oBGAr TIL many of the scenes in "Elf" were filmed at an abandoned psychiatric hospital in Vancouver. In the 50's, Riverview Hospital was home to more than 4,000 patients. The X Files, Supernatural, Saw, Deadpool 2 and many others have filmed scenes on the site.
vYa4 TIL to “testify” means to swear by your testicles, invented by Roman civilization
KYk6Q TIL in 1816, the United States built a fort to protect itself from invasion by Canada. There was only one small problem: due to a surveying error, it was built in Canada. It was later known as "Fort Blunder"
yarw TIL the reason that cashews are expensive is because they grow individually on a apple like fruit and must be removed manually. Their shells are also toxic.
v1ApB TIL The maximum number things an average person can hold in their mind is 7±2 before the analytical portion of their mind is overwhelmed and the impulsive/emotional portion of their mind takes over decision-making.