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189

TIL There used to be 4 billion American chestnut trees, but they all disappeared because of a fungus that kills them as saplings.

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j6LKn TIL a 2017 study found that cable TV exposure reduced boys’ cognitive ability and graduation rates, especially in educated families, as light TV entertainment replaces more stimulating activities, affecting development.
MewAB TIL the Greek question mark is nearly identical to the semicolon, to the point that its Unicode representation is, in practice, equivalent
nWad7 TIL About the search for R. Sørnes' 4th astronomical clock. Best described as mechanical real-time models of the solar system, the self-taught farmer son from Norway - rebuffed by clock-makers in his youth - made some of the most complicated clocks in existence.
gYXA TIL: In Vietnam, the Vietnam War is known as the Resistance War Against America or simply the American War.
xVojg TIL that there is a liquid you can breath safely when submerged in, that is also used for lung injury.