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TIL Bill Gates founded a nonprofit ed-tech initiative that created peer-reviewed, openly licensed textbooks, which are available in free digital formats and for a low cost in print. Instructors are free to use, adapt, and remix the content of those textbooks.

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KvRJ TIL that Sigmund Freud’s nephew believed the scientific manipulation of public opinion was necessary to overcome chaos and conflict in society. His subsequent work did much to create the consumerist culture we live in today.
VBvXm TIL In 1854, Clarissa Davis, an enslaved woman, escaped from Virginia by disguising herself as a man and hiding in a box near a steamship furnace. After 75 days in hiding, she endured the perilous journey to Philadelphia with help from an ally onboard. She was later assisted and able met her family.
5w6n TIL before the invention of antivenom, the black mamba had a 100% fatality rate and it’s victims would be dead in about 20 minutes.
j61wR TIL about the Younger Dryas Impact Theory, the idea that 12,800 years ago, the resulting impacts from a comet breaking up over earth's atmosphere would have struck glaciers and ice caps across the globe could have caused the great flood present in many ancient culture's stories/myths
Egr1x TIL: In 1986, one of the first computer hacks was uncovered when a systems administrator at Lawrence Berkeley Labs was trying to track down 75 cents or 9 seconds of unaccounted for server time. Cliff Stoll now runs a business selling klein bottles.