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TIL that the treadmill originated in prisons. It was meant as a punishment, a source of electricity, and to keep prisoners active.

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BNnW TIL Australia has a predatory version of the koala, known as Thylarctos plummetus
kEo4 TIL that there are Independent Olympic Athletes who don’t represent any specific country in Olympic competition.
Z8yGa TIL international students can attend for free all public colleges in Germany, Iceland, Norway and Finland; many have programs taught 100% in English; and the average tuition at colleges throughout Europe is $2,225/year.
N7d81 TIL about “pee paint,” a special paint that repels pee back on the pee-er. Cities use it in an attempt to reduce public urination on walls.
9wggX TIL that when Gottfried Leibniz developed binary code, he was inspired by the divinatory system implemented in the I Ching