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TIL many prominent historians have good proof that before the industrial revolution, most people slept in two periods per day, rather than one continuous period of nightly sleep

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kOpdg TIL Morocco was a haven for gay tourists during the 1950s
MdPV TIL cats decided to live with humans on their own and domesticated themselves
nW0dG TIL about the “William Shatner” seat, a term for the seat on an airplane providing the clearest view of the wings, allowing flight attendants and other crew easier inspection. It is denoted with a black triangle and named in reference to the Twilight Zone episode “Nightmare at 20,000 Feet”
R5eo4 TIL inside a cell, molecules can move at speeds upward of hundreds of miles per hour. A typical enzyme can randomly collide with potential reactants up to 500,000 times per second just from moving so fast.
raao TIL 1 in 30 births in the United States are twins.