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TIL Singapore was the first country to introduce an electronic toll collection scheme to manage traffic congestion by the way of road pricing in 1975. It has since been introduced in other cities in the world such as in London and Stockholm and has been proposed for New York City and San Francisco.

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XEepE TIL throughout the 1970’s the Grateful Dead used a 32ft tall PA system that could deliver perfect sound 600ft away. It had to be hauled in caravans of semi trucks and took 4 hours to assemble. They called it “The Wall of Sound”.
OjAR TIL Sunscreen is contributing to decline of coral reefs. The damaging effects were seen in coral in concentrations of oxybenzone as low as 62 parts per trillion, which is equivalent to a drop of water in six and a half Olympic-sized swimming pools, according to the researchers.
P1nWE TIL in Trigueros del Valle, Spain, animals have the same rights as people since 2015, signifying equal entitlement to life, freedom, and respect, with strict prohibitions against mistreatment or abandonment.
pgL8 TIL that the inventor of Vaseline, Robert Chesebrough had to prove that Vaseline actually worked by burning or putting acid on himself in front of crowds and use Vaseline to heal it. He would the show the healed burns at his later events.
mxo0M TIL Theodore Roosevelt's 1880 undergraduate thesis at Harvard was titled: "The Practicability of Equalizing Men and Women before the Law" which argued for women's rights, including property ownership, and argued that women ought to keep their birth names upon marrying.