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TIL Robert Recorde invented the symbol ’=’ in 1557 to avoid having to write “is equal to” over and over again.

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R7yvQ TIL ancient remains of at least 15 humans were found in a chamber in a cave, 80 m from the entrance, only 25–50 cm at its narrowest, and at the bottom of a 12 m vertical drop, in complete darkness and with no evidence of any tools or fire. They were from the previously undiscovered Homo Naledi.
xryk TIL that wolves in the wild do not have “alpha males” or “alpha females” with subordinate “betas” or “gammas”. Wolf packs are a family with the offspring of previous years.
nekAd TIL That although known locally, Machu Picchu was not known to the Spanish during the colonial period and remained unknown to the outside world until American historian Hiram Bingham brought it to international attention in 1911.
4kX7w TIL after the TV show Teletubbies ended, the owner of the land used had to dig out the hill and flood the field it was filmed in, due to the amount of people trespassing to see Teletubbieland.
Nnde TIL that the Bayanzi tribe of the Congo would execute via decapitation with a twist. While alive, the head of the condemned would be connected to a springy sapling so that when it was cut off, it would be thrown through the air “With the force of a bomb”.