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TIL: Sewer rats tails can become entangled and fused casing them to live the rest of there lives as Siamese twins. The condition is known as Rat King.

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NXwP6 TIL that Thomas Edison and his partner, Edward Johnson, invented the first electric Christmas lights. For Christmas in 1880, Edison dressed his laboratory in lights; and, in 1882, Johnson put electric lights on a Christmas tree. However, lights were expensive, costing about $2,000 per tree in 1901.
v1ve4 TIL that in China, companies use stamp chops instead of signatures, and whoever is in physical possession of the stamp can legally sign any document for the company, even rewriting their own employment contract
ygrv Til The Nation of Islam believes that an evil black scientist invented white people thousands of years ago through forced eugenics and despotism.
0dbBM TIL the 1944 Nobel Prize went to male German physicist Otto Hahn solo for the discovery of nuclear fission, despite the fact he had done the work in collaboration with Lise Meitner, a German Jewish woman forced into exile who had in fact even been the first to use the term 'fission' and explain it
NAV6 TIL that there is an environmental movement that wants humans to voluntarily stop reproducing until we go extinct. Their slogan is “May we live long and die out”