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TIL that the city of Holland, Michigan uses a system of underground pipes to heat streets and sidewalks, keeping them clear of snow.

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via reddit.com

Eevx TIL that in 2013 a grad student accidentally debunked an influential economics paper. He was trying to replicate the paper’s math for a school project and couldn’t, because it was completely wrong.
JYQbv TIL about Henry Berry Lowrie. Lowrie was born to a mixed-race family during the civil war, and in 1865, saw his family executed for owning weapons. He led a gang of Indians, African-Americans, and white men, stealing from the rich and giving to the poor. He disappeared at 27, and was never caught.
yQKb8 TIL Medical error is the third leading cause of death in the US
0w8y1 TIL that mandatory right-hand traffic was introduced in Europe by Napoleon with the aim of deterring swordfighting on horseback, and because the traditional left-hand traffic was seen as aristocratic. Since he never conquered Britain, left-hand driving would remain there.
g5m9 TIL The once widespread West African black rhino was declared extinct 3 years ago. The reason for extinction was poaching by humans.