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TIL of Green Run - a secret Air Force experiment that released Hanford’s largest single dose of radioactive iodine-131. Scientists let 7,000-12,000 curies into the air, traveling as far as 200 miles. For scale, Three Mile Island released an estimated 15-24 curies, Chernobyl 35-49 million curies

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N7Vo6 TIL Divorce in Ireland was only legalised in 1995 after a referendum. The margin of victory was 0.56%
W58o TIL That Drinking One Soda A Day Can Increase Diabetes Risk By 22%.
YpjnG TIL about the Battle of Manila Bay (1898) which was a decisive victory for the US Navy where they sunk all seven Spanish cruisers plus a transport ship and only lost one American life: Chief Engineer Francis B. Randall, who died of a heart attack.
yQPnp TIL in 1209, crusaders were sent to siege Béziers (in France) as many citizens had become heretics. Before the attack, the army asked the Pope's ambassador on how to distinguish between heretics and Catholics, he replied: "Kill them all; let God sort them out." All 20,000 inhabitants were killed.
M77PA TIL Florida attempted to build an artifical reef out of old tires which unintentionally caused a massive ecological disaster