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TIL: that the Chinese government has an AI survelliance system that uses +20M cameras and facial recognition to track citizens behavior and monitor criminals. They officially named it: “Skynet” - because of Terminator...!

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9YKBG TIL Research shows that starting school at 10am instead of 8:30am halves student illness and improves academic performance.
DmAv TIL that from 1936-1966, black Americans going on a road trip often used a “Negro Motorist Green Book” that would list businesses that sold to black people. The book helped travelers avoid one of 10,000 “sundown towns”, places it was the law that all non-whites had to leave the town by sundown.
d7VE TIL that the Times said in 2013 that it does not publish letters from climate change deniers: “Saying ‘there’s no sign humans have caused climate change’ is not stating an opinion, it’s asserting a factual inaccuracy’ that doesn’t belong in our pages.”
gepX TIL the hottest talk show in China is hosted by a transgender woman called JingXing, she is officially recognized as a woman by the Chinese government
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.