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TIL that from 1946 to 1948, a group of doctors from the United States Public Health Service intentionally infected 1,308 people in Guatemala, including children as young as 10, with various STDs. 83 people died, but the experiments were kept secret until papers describing them were found in 2005.

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kOyOW TIL that Americans spend around $72B in lottery tickets every year, with the chances of winning being less likely than getting attacked by a shark, being killed by a vending machine, being elected president, being struck by lightning, coming down with the plague, or being killed by a falling coconut
E1W67 TIL scientists discovered a cypress tree in North Carolina that is at least 2,624 years old, which means the tree was alive for centuries before the advent of Christianity, the Roman Empire, and the English language.
nWJeo TIL Frank Sinatra passed away during the night of Seinfeld's final episode, and his ambulance was able to quickly reach the hospital due to the reduced traffic resulting from the widespread viewership.
k0Md TIL On Earth, there was a time when forests didn’t decompose; no life had evolved to eat trees yet.
J1yGv TIL The classic Chinese takeout box was originally designed for holding oysters, and later honey. Early patents are from the late 1800s and association with Chinese food came with the rise of takeout in Post-WW2 United States.