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TIL there are over 7000 spoken languages in the world.
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8aMJG
TIL caffeine evolved independently in many plants. It's toxic in high doses to hungry insects, and caffeinated leaf litter can make soil toxic for other competing plants. Separately, pollinators receive a light "buzz" from caffeine in pollen, and are more likely to remember the flower's scent.
yQBBM
TIL about history's most expensive "hyphen" when a NASA programmer missed out a single hyphen whilst transcribing a mathematical formula for the guidance system which caused an entire NASA rocket launch to be aborted and the rocket destroyed.
Xo9E
TIL there are no documented human deaths from an LSD overdose
4X7X6
TIL For centuries, Kurdish villagers knew an ancient rock relief simply as "Naram-Sin", but didn't know who or what it represented. Later, archaeologists discovered it to be a depiction of Naram-Sin of Akkad, King of the Akkadian Empire (the world's first empire) who ruled over 4200 years ago!
woXr1
TIL Airplane toilets are coated with teflon so your poop doesn't stick when it's vacuumed down the toilet. Minimal water is used.