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TIL chipping a stone ax like early humans did 1.8 million years ago activates the same brain circuits used by modern human musicians

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9YDVG TIL that despite being aligned with Nazi Germany in WWII, Finnish Jews were not persecuted by the government of Finland. The Finnish Army set up the only field synagogue on the Eastern Front and Finnish Jews fought with Germans in support of the Axis Powers.
D1kVg TIL that chimney sweeps use to use live geese to sweep chimneys.
Y7KbA TIL In the summer of 1967 an extended six years of racial unrest started in Cairo IL. At its height in 1969 there were 170 nights that gunfire was reported in the town. The population of Cairo would decline from 9,348 in 1960 to approximately 2,359 in 2016.
PYlPn TIL Charlie Chaplin was given a 12-minute standing ovation at the Academy Awards gala in 1972, the longest in the Academy's history.
Y94G TIL there are an estimated 50,000 undocumented Irish living in the U.S., with 30,000 of them thought to be in New York City. One Irish-born neighborhood in the Bronx is estimated at having 40% of its immigrants as undocumented.