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TIL That North Korea uses a system called Songbun, which is a national system that ranks citizens' loyalty. It can determine what rights a person gets, including amount of food.

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XEgn6 TIL a South African policeman and criminal, robbed banks on his lunch break and often returned as the investigating officer.
VBprQ TIL Canada's Thanksgiving Is Celebrated In The 2nd Monday Of October, 1.5 Months Before The US's, And On The Same Day As Indigenous People's Day/Columbus Day.
80G8 TIL That the “clap” from the clapperboard in television when the director yells “action!” is used to sync the audio with the video for that take.
yap TIL Rick Rescorla moved from Britain to fight in Vietnam, was a hero at Ia Drang, and saved all but 7 of his 2,700 employs by running up and down 20 flights of stairs with a bull horn during the 9/11 terror attacks… which took his life.
X0GDj TIL that the army built a tunnel to drain Spirit Lake, to relieve water pressure against a natural dam created by the eruption of Mount St. Helens. If the tunnel fails - and it will - the dam will fail and a 40-foot wave will race down the valley, all the way to Kelso, WA, on the Columbia river.