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TIL of James Clerk Maxwell who wrote the first equations unifying electricity, magnetism, and light as being part of the same phenomenon.

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ADpm4 TIL that although 20 US Presidents served in the military and most of them during war time, only President Kennedy was awarded a Purple Heart.
Y76Vv TIL The song "Happy Days Are Here Again" was recorded on the same day that the stock market crashed in 1929.
nemmW TIL elephants produce 2000 liters of methane a day in their digestive system, enough to run a car for 20 miles.
DEZp TIL Finland has a 20-year plan for its country brand. The 365-page government report includes plans to become a silicon valley of social innovations, a land where the lakes are drinkable, and a country that has managed to export its unbeatable education.
DGND TIL a mason in 1700’s Jerusalem left his wooden ladder behind after doing some work on a church and now it can’t be moved without the agreement and permission of six different Christian leaders.