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TIL The Plantaris is a small muscle in your calf that is believed to be used by our ancestors to grip with their feet. It is so weak that it is considered functionally obsolete and arguments have been made that humans are evolving it out. It is absent in 7-10% of the population worldwide.

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j6V9n TIL that the difference between a roth and traditional IRA is that you contribute taxed dollars to a roth IRA and don't get taxed when you withdraw, whereas a traditional IRA is taxed with pre-taxed dollars but you get taxed in the tax bracket you're in at the time of your withdrawal.
woYYo TIL that in 1947, U.S. House Minority Leader Sam Rayburn was gifted a 1947 Cadillac Fleetwood Series 62 from 142 Democratic congressmembers and 50 Republican congressmembers. Each congressmen donated $25 to circumvent Rayburns personal rule of not accepting gifts more than $25.
wLjvM TIL that despite being studied since its discovery in 1906, scientists have yet to rule out a germ origin for Alzheimer's disease. The infectious hypothesis could explain why neurosurgeons are twice and a half more likely to die from it than the general population.
DDbv TIL D.B. Cooper researchers (the only successful airline hijacking in U.S. history) in recent years, using SEM, lifted microscopic particles of pure titanium from the tie he left onboard (rarely used in 1971), narrowing the possible suspects from millions to 100s.
O6Vg TIL that despite being a symbol for post-modern Anarchism, Guy Fawkes was a devout Catholic who sought to install a Catholic monarchy in England and the Netherlands.