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TIL that the caste system is among the world's oldest forms of surviving social stratification.

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ADnDg TIL that the lowest point in Colorado is higher than the highest point of 18 states
xVeA7 TIL- Boston University did a neuropathologically study on 111 former NFL Players. 110 out of 111 were diagnosed with CTE, the degenerative disease caused by repeated blows to the head.
GoA1 TIL that in 1976, a Soviet pilot defected to Japan in his advanced MiG-25 fighter, which Russia demanded be returned. Japan complied, but only after allowing American engineers to examine the aircraft. Japan then shipped it back piece by piece, and billed Russia $40,000 in transport and labor costs.
Wwr4 TIL Poet Stanislaw Jerzy Lec survived a German concentration camp by killing his guard with a shovel that was given to him to dig his own grave - and then escaping in the guards uniform.
R5xa1 TIL that a giant Publix birthday cake serves as the water tower for Lakeland, FL. Built in the 1980s the tower stands at 146 ft tall and delivers 250k gallons of water per minute.