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TIL testicles make several million sperm per day — about 1,500 per second.

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W7vQL TIL in the summer of 1977, New Yorkers turned the surrounding area around the Twin Towers into a makeshift beach using dirt excavated for the construction of the original World Trade Center.
epKWL TIL fracking likely caused two of the largest earthquakes east of the Rocky Mountains
VBWZQ TIL Kurt Lee, the first Chinese-American US Marine Corps officer, yelled out orders in Mandarin Chinese to confuse opposing Chinese troops during the Battle of Inchon in the Korean War.
N7lO1 TIL about the law of flat surfaces which says that if you have a flat surface in your home, it will get filled with clutter
kOa0E TIL The difference between different types of wetlands. A bog is acidic while a fen is alkaline. A swamp has vegetation that consists of trees or other woody plants whereas a marsh has other forms of vegetation.