› added 5 years ago

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TIL it's been 125,000 generations since the emergence of human species, 7,500 generations since human physiology reached what is essentially its modern state, 500 generations since the agricultural revolution, and ONLY 20 generations since the scientific revolution!

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VBwkG TIL: Shakespeare and Dickens both used the phrase “Dead as a Doornail” in their work. Nails were handmade, super-valuable and often re-used. Doornails were “dead” because they were bent over like staples, making them unable to be used again.
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