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7

TIL Jack Johnson, the world’s first heavyweight champion, was convicted of the Mann Act

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l8BA TIL alligator blood kills HIV
VKXD TIL most of the world’s major waterways have been diverted or dammed or otherwise manipulated—in the United States, only two per cent of rivers run unimpeded.
7rp8Z TIL Ed McMahon (Johnny Carson's sidekick) was a carrier certified Marine F4U Corsair instructor pilot during WWII and an artillery spotter during the Korean War. He flew a total of 85 combat missions. After the war, he stayed with the Marines as a reserve officer, retiring in 1966 as a colonel.
yVLpp TIL about the Bannister Effect: When a barrier previously thought to be unachievable is broken, a mental shift happens enabling many others to break past it (named after the man who broke the 4 minute mile)
Z8EYa TIL The Swiss Air Force didn't respond to a hijacked airliner in their air space as it was outside normal office hours. A spokesman stated: "Switzerland cannot intervene because its airbases are closed at night and on the weekend"