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TIL in 2008, Brazil made sex change surgeries free under their public health care system, ruling that sexual reassignment surgery was covered under a constitutional clause guaranteeing medical care as a basic right.

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E1Q00 TIL when you cool helium to about 2 Kelvin it has literally zero viscosity and so can flow through solid ceramics and up walls.
N9jM TIL that the tongue of a blue whale can weigh as much as an elephant and an entire football team could stand on it
R7nk4 TIL The 1 Percent Rule. This rule states that only 1% of an internet community creates new content. The rest of the community is divided between content editors (9%) and content viewers (90%).
N7PLJ TIL When it snows in the Netherlands, Dutch police look for cannabis growers by spotting rooftops without snow
RN78 TIL that during his childhood, Fidel Castro sent Franklin Roosevelt a letter expressing his joy at Roosevelt’s re-election and asked that if he could, for the president to send back a ten dollar bill, because he had never seen one.