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TIL East Pyongyang No.1 Middle School in North Korea has taught a "Mao Zedong class" since 1959, where students learn Chinese language and songs. It has exchange programs with its sister school in Beijing which offers a "Kim Il-sung class"

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kQrE TIL that in the late 1950s, China’s government began a campaign to kill millions of sparrows because they ate crops. As a result, there was a huge increase in crop-eating insects, which led to a severe famine.
YpJ5P TIL the Taft-Hartley Act prohibits jurisdictional strikes, wildcat strikes, solidarity or political strikes, secondary boycotts, secondary and mass picketing, closed shops, and monetary donations by unions to federal political campaigns
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m6gP TIL the first goalie mask worn in a NHL game wasn’t until a goalie took a puck to the face, got stitched up, and refused to return to the game unless he could wear a mask.
4Xv4N TIL scientists searching for an explanation for an unusually cool area of sky instead discovered a 'supervoid'; an empty spherical blob 1.8 billion light years across that is the largest object in the known universe. An estimated 10,000 galaxies were “missing” from the part of the sky it sits in.