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TIL of the oldest human structure. Predating Mesopotamian civilization and Stonehenge by 6,000 years, Gobekli Tepe. Researchers determined a pillar (pillar 43) depicts a comet colliding with Earth over 10,000 years ago causing a millennia of global cooling.

LWLV TIL an art group designed and released 3D printing models for interconnecting Lego, K'Nex, Duplo, Lincoln Logs and more, allowing any piece to join to any other.
Z8P9D TIL There is a network of colleges that advocate the use of open licensed textbooks with professors adopting these books into their curriculum. As more textbooks are adopted, eventually students will less likely have to buy textbook for their courses in the future
0Nep TIL a game company called Stab Yourself made a sequel to Tetris called Not Tetris 2. The game features “realistic physics”, meaning that the blocks have fluid movement and are not confined to the grid, often resulting in the game board becoming an impossible-to-clear mess.
aw7K9 TIL that Albert, King of Belgium, was the only WWI head of state to fight on the front lines alongside his men, and many Germans didn’t shoot at him out of respect. Additionally, he allowed his 14-year-old son to enlist and serve alongside him.
QNWpM TIL that in spite of a public funeral attended by thousands, blues singer Bessie Smith’s grave was unmarked until 1970 because her husband refused to buy a headstone and pocketed the money when her friends attempted to purchase one on her behalf.