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153

TIL half of the top 20 cities in the world with the highest murder rates are in Brazil.

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Lk5jr TIL the children's cartoon Arthur is still producing new episodes and is on its 21st season, and has been running longer than South Park
E1NZ7 TIL The communal chatter of snapping shrimp colonies on the ocean floor created enough white noise that the U.S. Navy successfully hid submarines near them during WWII, avoiding detection by underwater Japanese hydrophones.
BgObx TIL Nikola Tesla was obsessed with the number 3 and engaged in a number of compulsive behaviors around it. For example, he would walk around a building three times before entering and he commonly washed his hands three times in a row
9wAjG TIL the Minuteman ICBM had a smaller more portable brother, the Midgetman missile
WkWDd TIL Anastasia, daughter of the last Tsar of Russia, supposedly escaped execution during the Russian Revolution. The story inspired books and imposters. Scientific analysis (incl. DNA analysis) now confirms she died in 1918. Remains included the imperial family and all four grand duchesses.