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TIL of “Last Thursdayism”, the idea that the universe began to exist last Thursday, with everything (including our memories) all formed at the time of creation (last Thursday) in a state such that they appear much older

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GMNJ TIL cold showers increase testosterone levels, mitigates depression, and invigorates the mind.
KO5oa TIL about Elina Powell, a black nurse who served during WWII. She was assigned to work at a POW camp, like most African-American nurses at the time, and fell in love with a German POW there. They married and had children despite it being illegal in both the U.S and Germany during this time period.
4XmQa TIL after a storming a hijacked plane and killing/capturing the hijackers, Israel worked for 5 years to purchase the aircraft, then converted it to a spyplane
xblo TIL that in 1957, the BBC aired an April Fools segment showing a family harvesting spaghetti from the family spaghetti tree. When viewers asked how they could grow their own, they were told to place a sprig of spaghetti in a tin of tomato sauce and hope for the best.
b96YZ The rise of Genghis Khan and the Mongolian empire was responsible for the annihilation of an estimated 40 million people, but there were clearly more than a few conquests off the battlefield as well. A 2003 study suggests that 1 in 200 men are direct descendants of Genghis Khan. Studies of Y-chromosome data found that almost 8 percent of men living in the former Mongolian empire carry nearly identical Y chromosomes. Researchers believe this is attributed to a unique set of social selection circumstances put into play by the spread of the Mongolian empire. In this week’s "Today I Learned," research scientist Albert Lin elaborates on Genghis Khan as a romantic.