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TIL Each of the suits on a deck of cards represents the four major pillars of the economy in the middle ages: heart represented the Church, spades represented the military, clubs represented agriculture, and diamonds represented the merchant class

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xpeD TIL Henry Ford started the concept of the “five-day workweek” in order to resolve the conflict between Christians and Jews over which day of Sabbath they should get off. He did this without reducing pay in order to prove that the same amount of production after six days can be met in five.
VbVp TIL: Abraham Lee Shakespeare was an American casual laborer who won a $30 million lottery jackpot, receiving $17 million in 2006. In 2009, his family declared him missing, and in January 2010 his body was found buried under a concrete slab in the backyard of an acquaintance.
d80KK TIL starting in 1782 the official motto of the United States was "Out of many, one" until it was changed in 1952 to "In god we trust"
OoPWg TIL that an unforeseen consequence of London's Walkie Talkie skyscraper was that the building's curvature acts as a concave mirror facing the sun, leading to street-level recordings of temperature as high as 117°C. Parked vehicles have been damaged and a reporter was able to fry an egg on the ground
DQxOe TIL current scientific data support the idea that the first prokaryotic cell likely formed when an archeal cell captured a bacterial cell, causing them to merge and to eventually become the first prokaryote on Earth.