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15

TIL only 1 US President has been born after 1946.

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ne99 TIL a seventh grader in Florida won her school science fair by proving that the ice in fast food resturants contains more bacteria than toilet water.
7r7rO TIL in Scandinavia the Kiruna to Narvik electrified railway carries iron ore down a steeply graded route. On the way down the trains generate large amounts of electricity by regenerative braking, which is sufficient to power the empty trains back up the track and pump excess energy into the grid.
rR7YW TIL semi, demi and hemi all essentially mean the same thing (half) but have different language origins.
m1DaE TIL that in 1977, The President of the Central African Republic, Jean-Bédel Bokassa declared himself Emperor in a ceremony, which cost $20 million and was 1/3 the annual budget. He would be overthrown in 1979.
VBVDB TIL cats are the number 1 killer of birds in Canada. It's estimated that keeping cats indoors could save 200 million birds each year, and cats have contributed to the extinction of 34 species of birds