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TIL US cotton exports were so cheap and competitive that they bankrupted the Egyptian economy back in the 1800s

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ANV8n TIL That a bubble imploding in a liquid can produce a flash of light when excited by sound, the process is called Sonoluminescence, but at the moment there's no agreement on how the effect is created.
p87bQ TIL about German playboy Rolf Eden, age 86, who once sued a 19-yr old woman for age discrimination after she refused to sleep with him. He intends to die while having sex and has allocated $330K in his will to whichever woman is fucking him at the moment of his death.
grjb TIL the first aircraft to be intentionally shot down by another aircraft went down on October 5, 1914, when the observer in one plane shot the pilot in another plane with a hand gun.
DQNOP TIL ending a sentence with '/s' is called a 'Tone Indicator'; a set of 60+ symbols that explicitly state the intention or intonation of a message, when it might be considered otherwise ambiguous.
78NEL TIL the annual Minneapolis Aquatennial Festival happens every year near the end of July, a timeframe chosen by sponsoring businesses in 1940 to deliberately conflict with Teamsters' annual celebration of union victory in the violent truckers strikes of 1934-35