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TIL blood type "O" is the primary blood type among the indigenous populations of the Americas, in-particular within Central and South America populations with a frequency of nearly 100%

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8aaR8 TIL about the Dunbar's number. It is a theoretical upper limit of the people one can maintain stable relationships with. Suggested between 100 and 250. So if a town's population is below the Dunbar's number, it is more likely to have harmony and peace that a larger town or city.
OojN7 TIL Children of identical twins are genetically siblings not cousins
QJl6d TIL in 1995, Blockbuster sued rival company Hollywood Video for $10 million after hiring five former Blockbuster employees. Hollywood Video had only 117 stores nationwide, in comparison to Blockbuster's 2,800.
7kdM TIL a man named William Harrison went missing in Gloucester and, upon interrogation, his servant confessed that he, his mother and his brother had killed Harrison for money. Two years after they were executed Harrison reappeared, claiming to have been abducted and sold into slavery.
nwmY TIL the least common interracial pairing is between black women and white men, followed by white women and black men. The most likely interracial marriage is between Hispanics and non-Hispanics, followed by those between white men and Asian American women.