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TIL Coca-Cola was first marketed as a brain tonic

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vnwj TIL the first Australian ship to go to Japan was a boat full of convicts who mutinied against their masters in in 1829. After escaping to China the sailing master wrote an account of their journey, but until 2017 when an amateur historian found Japanese paintings of the ship no one believed him.
W7gWd TIL of the Jevons paradox, which states that increasing efficiency in resource usage causes higher demand - sometimes increasing usage instead of reducing it.
WEDd TIL skyscrapers in downtown Toronto are air conditioned via frigid water pumped from the bottom of Lake Ontario, reducing electricity costs by 75%
0dRKR TIL Japan is the only country in the world to use 100v AC, and that the frequency varies (50hz in the east, 60hz in the west) because they bought equipment from two different manufacturers/countries
nOBd TIL that besides right-handedness, left-handedness, and ambidexterity, there are also people who are ambisinister, meaning they are awkward or clumsy with both hands.