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TIL - An 11 year old girl in Nova Scotia, when told she couldn't swim in her local river, initiated testing of the river for fecal contaminants. After the samples tested above allowable limits, three levels of government committed $15 million to install 600 septic tanks along the river.

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dDxg9 TIL the highspeed rail in Indonesia is called "Whoosh"
d89Or TIL that the Boeing B-29 Superfortress airplane (WW2, Korean War) had an analog computer system that allowed one team to simultaneously control 4 turrets mounted on the bottom of the wings — the computer calculates the aim and automatically adjusts all of the turrets respectively
R50M7 TIL (after breaking both clippers and some weak scissors) that you're supposed to clip nails and toenails after a bath, when they are softer.
BrvJk TIL that the retirement age for men in the USA was set at 65 in 1935. The average life expectancy at the time was 61.7 years old.
NXZWN TIL A replica of Romulus' hut was maintained in the centre of Rome until the end of the Roman Empire.