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TIL A New Ligament in the Human Knee was Discovered in 2013

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9YlQ6 TIL one of the largest earthquakes in North American history occurred on January 26, 1700. It was only documented by oral history in the First Nations populations, and collaborated by a Japanese record of a tsunami around the same time.
78AGL TIL that most of the actors that portrayed the Jack Ryan character are all catholic of Irish descent, like the character. (Alec Baldwin (1990), Harrison Ford (1992–1994), John Krasinski)
LkAMr TIL, entrepreneur Suzanne Ciani was the first female to have a voice on a pinball game, specifically Xenon, through a vocoder, and was even inducted into The Pinball Expo Hall of Fame in 2013 for that work of hers.
v18w4 TIL about the practice of Thalaikoothal , the practice of using coconut water to perform Senicide, the act of killing of an aged person
DQBbg TIL the sumo wrestling ring (dohyou) is constructed by the ring ushers (yobidashi) before every tournament. They destroy the previous ring and the new one takes 3 days to build. One reason for reconstruction is that the rice straw bales might rot and cause the ring to crack.