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TIL The Oregon Trail game was created by 3 teachers on a teletype, which became the biggest educational game in history, yet none of the three creators saw a dime in its millions of dollars in profits.

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gM84 TIL that women who have anal sex have more orgasms.
jNYmR TIL of Bloody Sunday (1920) when 14 Irish civilians were killed in Croke Park during a Gaelic Football match when British forces opened fire on the players and the crowd.
JYo5V TIL about Bertlmann's socks — a physicist so famed for wearing odd socks every day, that they have been turned into a metaphor about how quantum mechanics does (not) work.
9YgKp TIL The sun is not yellow, it’s white. Rayleigh scattering both makes the sky appear blue and the sun appear yellow by scattering the suns rays.
16JQP TIL that Poinsettias come from Mexico. The Aztecs call them (Nahuatl language) cuetlaxochitl ̶ xochitl. The name Poinsettia, is in honour of Joel Roberts Poinsett, a US envoy in Mexico City who introduced the plant to the US and Europe.