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TIL That the Mayans had no pack animals, and did not make use of the wheel beyond children's toys. Instead, all work was done by human hand labor.

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oVAK TIL that in addition to having mild winters, Greece has a period of about two weeks around the end of January in which the climate is like summer’s. It’s been going on every year and for at least 3000 years!
4ZjR TIL that Teddy Roosevelt suffered a detached retina in 1908 after becoming blind in one eye due to a boxing injury in the White House. He later switched to jiu-jitsu and became a black belt.
gM4DD TIL about ColorADD - A system of symbols designed to help colourblind people distinguish colours
6EXBZ TIL that the painting Liberty Leading the People is not about the French Revolution or republicanism. It commemorates the July Revolution, which replaced the reigning king with a different man.
R5KN1 TIL spending money on charity may make you happier than spending money on yourself if your basic needs are already met