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TIL in the last 5 millennia, genetic change in humans has occurred at a rate roughly 100 times higher than any other period of human evolution. Humans today are more genetically different from humans living 5,000 years ago than these people were from humans living 40,000 years ago.

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n5Wd TIL That so many Purple Hearts were made in anticipation of the invasion of Japan that every Purple Heart since World War II has come from that stock.
xVMgb TIL That in 2018, the US Army started its own e-sports team as an attempt to recruit from a younger audience
nVW9 TIL that in 2009, if the total wealth of American citizens was distributed evenly to every person, everyone’s annual income would be approximately $177,700.
1adgO TIL Shorter workweeks lead to less smoking, thinner waistlines. For blue-collar workers, shortening the workweek by 4 hours lead to a 19% to 24% decrease in smoking. For white-collar workers, cutting the same amount of hours was associated with a 1.7% to 2.1% drop in BMI.
6OwY TIL that “in comparison to Android users… iPhone owners are more likely to be female, younger, and increasingly concerned about their smartphone being viewed as a status object” and display “lower levels of Honesty–Humility and higher levels of emotionality.”