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TIL that to lick a wound is an instinctive response in humans and many other animals. It is because saliva contains a substance that promotes blood clotting and the enzyme lysozyme, which attacks the cell walls of bacteria, to guard against infection.

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JYeP8 TIL that in 1897 the mayor of Seattle quit office to start a boat business and transport gold miners from San Fransisco to Canada
0w5vR TIL that in 1991, the eruption of Mount Pinatubo in the Phillipines caused a volcanic winter which cooled global temperatures by about 1.3°F (0.7°C) for several years. On June 20, 1992, the high temperature in parts of Michigan was only 51°F (11°C).
N7Mx1 TIL that in the early 60s, singles were more important to most musicians than albums. It wasn't until the Beatles released Rubber Soul that focus shifted to making albums without filler tracks that were the product of an artistic vision.
v16Lx TIL that the 'Change my Mind' meme guy drinking out of the coffee cup was the voice of Alan Powers aka 'The Brain' on PBS' Arthur
Oo0l4 TIL A battalion of Scottish troops who went to battle in kilts was given the nickname "The Ladies from Hell" by the German troops they fought against in World War One.