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TIL In 1941, almost 10% of all recruits for the US military were rejected because they did not have 6 opposing teeth on their upper and lower jaws. US dental health was so poor before WWII that it was the leading cause of rejection.

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via reddit.com

LkEPr TIL: A guy tired of people getting injured in potholes around city took to artistic vigilantism to get them repaired by drawing penis around them.
KYZjR TIL the fire horse is a Sexagenary (60 year) cycle in Japan which, according to a superstition, girls born in such a year will grow up to kill their husbands. Therefore, birthrates in Japan tend to see a sharp decline (e.g 25% decline in 1966 vs 1965). The next year of the fire horse is 2026
rRK0x TIL During pregnancy, the baby growing in its mother’s womb needs plenty of calcium to develop its skeleton. If the mother doesn’t get enough calcium, her baby will draw what it needs from the mother’s bones. Women often lose 3 to 5 percent of their bone mass during breastfeeding, and recover after
yBNX TIL U.S. soldiers serving in Afghanistan were instructed to ignore child sexual abuse being carried out by Afghan security forces. One Captain was relieved of his command after beating up a child rapist.
AD7YB TIL there’s an herb named culantro, not to be confused with cilantro, that is related to parsley and cilantro/coriander. It is native to Mexico and Central & South America, but is used throughout the world for its culinary & medicinal properties, and is said to taste like a stronger cilantro.