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TIL before the Large Hadron Collider (LHC) was completely constructed, there were concerns among the public that its high-energy experiments would lead to the formation of micro black holes or strangelets, a dark-matter-like particle that can convert all matter it touches into strange matter.

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0wGDN TIL that before his presidency, Abraham Lincoln was wrestling champion of his county. He fought in nearly 300 matches and lost only one.
M4PW TIL the Miss Navajo Nation pageant requires contestants to butcher a sheep
epAE TIL in 1910, Norman Angell (a future Nobel Price Peace Winner) published a book that propagated the view that Europe had become so economically interlaced that future war was impossible.
PYZrJ TIL Britain bought the freedom of all the slaves under its Empire at a cost of 40% of the treasury income which wasn't paid back till 2015 to ensure the freedom of slaves. 5% of GDP at the time which is aorund 100 Billion pounds today)
LQj7d TIL that Jeffrey Hudson, a court dwarf of the English Queen Henrietta Maria, shot a man in a duel, after which he went into exile, was captured by Barbary pirates, spent 25 years enslaved in North Africa during which he grew 25 inches, which he attributed to the hard conditions.