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TIL high fives were not really a “thing” until the 1970’s

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WpBA TIL dice predate recorded history
E1pJP TIL that in the 1960s, over 320,000 baby teeth were sent by parents to be tested for radioactive isotope strontium-90. They showed that children born after large scale nuclear testing had begun showed levels 50 times higher than children born before large scale testing.
pb04 TIL Physicists like using 2000 year old ancient Roman lead in their experiments and this is pissing off archaeologists
pYJ9N TIL there is a dating app for millionaires which allows users to join based on verified income or ratings of attractiveness from current users
xVErD TIL that in the 1900’s, a theater offered a prize of $1,000 to anyone that could make Sober Sue laugh attracting thousands of people who would never succeed. It later came out that Sue suffered from facial paralysis.