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TIL In 1950, medical knowledge was estimated to double every 50 years. By 2020, it is expected to double every 73 days.

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loXjB TIL that reckless driving was so rampant in the early 1900's that many cities held safety parades. Mangled cars with warning signs were towed through streets and thousands of children dressed as ghosts to represent each death that year, followed by grieving mothers who wore stars to show their loss.
x6yAw TIL there is a little known statistic in American football called an “octopus”. Players can record an octopus by scoring a touchdown, followed by scoring a 2-pt conversion after that same touchdown.
D1BjV TIL The world's oldest known creature was a 507-year-old mollusk, that lived from 1499 until the day scientists found and killed it by mistake.
0dRx5 TIL artist George Herms had an art exhibit called “secret exhibition” in 1957. It was installed in Hermosa Beach, California. The art was among a row of demolished buildings' foundation blocks. A few friends visited it on a single day, then the works were left to decay.
O5lY TIL Indiana State Congress once tried to legislate the value of Pi at 3.2 instead of 3.14159…