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TIL that the vagina was named after the Latin word for “scabbard”, reflecting it’s function of holding a man’s sword

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R9b4 TIL that in 2013 a man found where his kidnapped cousin was being kept, kicked down the door, and killed her abductor
N7Ke6 TIL in 2009 a UK and French nuclear ballistic submarines collided with each other as neither of them knew the other sub was nearby. They were submerged and running silent but were moving slowly enough that though the ships were damaged, there were no injuries nor radioactive releases.
dDKkd TIL about Civil War Survivor Jacob Miller. In 1863 he was shot between the eyes and with a bullet lodged in his brain he was left for dead. Jacob regained consciousness and made it to a field hospital. Jacob lived for another 54 years, dying at the age of 88 in 1917.
ewnE TIL that during the Cold War, the US Army deployed Atomic Bazookas.
jNKJN TIL that levels of carbon dioxide common in offices and classrooms can decrease cognitive function by 15-50%