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TIL In Switzerland, Rabies has been virtually eradicated after scientists placed chicken heads laced with a vaccine in the Swiss Alps. The foxes of Switzerland, proven to be the main source of rabies in the country, ate the chicken heads and immunized themselves.

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JYM9m TIL in Sichuan opera, there is a performance art specifically dedicated to changing theatrical masks so fast that it’s imperceptible. It’s called Bian Lian (“face changing”), and the sleight of hand technique behind it is classified as a level two national secret by China’s State Secrets Bureau.
j6VrN TIL Picher, Oklahoma is the Most Polluted Place in America From Mining and Industry
ADoV7 TIL in 1054, Chinese astronomers noted a bright "guest star" in Taurus that was visible in the daytime for 3 weeks and didn't completely fade out for almost two years. The "guest star" was actually the supernova explosion that created the Crab Nebula, which is located some 6,500 light-years away.
vPj4D TIL the Coffee Break was first utilized during WWII at a necktie factory in Colorado. Wigwam Weavers gave two coffee breaks a day to its workers so that the caffeine boost would increase productivity.
wLvGW TIL In 1976, President Gerald R. Ford and Jimmy Carter debated, marking the first time in US history that a president had agreed to debate and only the second time that any televised debates had been held. The sound system failed, leaving Ford and Carter standing in silence for nearly half an hour