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TIL the Canadian province of Alberta is one of the few places in the world considered to be rat free.

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MeX00 TIL the majority of North Korean clothes are made from Vinylon, a synthetic fiber made of coal and rocks. It is the only country in the world to do so.
b9MJj TIL there exists a deep sea eel-like fish called the Bony-Eared Assfish that is currently on display in Canada.
J5pB TIL of Harvard Observatory astronomer Henrietta Swan Leavitt; given the boring job of examining the luminosity of stars in thousands of photos, she discovered how to measure the distance between the Earth and faraway galaxies. At the time, she was not allowed to operate Harvard’s telescope.
v1Box TIL Humans hear anywhere from 20 to 100 times faster than they see so that everything that they perceive with their ears is coloring every other perception they have, and every conscious thought they have. Sound gets in so fast that it modifies all the other input and sets the stage for it.
ZpKAR TIL about Belphegor's prime: 1000000000000066600000000000001