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TIL that chainsaws were originally invented to aid childbirth.

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KWo9 TIL that 75% of Australia’s living species are still unknown to man
y1Xw TIL A man who has killed more than 300 people and released from prison on good behavior is now a youtuber with over half a million subs
5Y5Z9 TIL that the last surviving Nuremberg prosecutor (age 97) says that what he witnessed in Europe still haunts him “every single day of his life.”
nWN9b TIL Hatsune Miku (a virtual pop idol) made an appearance on the Late Show with David Letterman in 2014. A bewildered Dave compared the experience to "like being on Willie Nelson's tour bus".
R7a6Q TIL that is is impossible to accurately measure the length of any coastline. The smaller the unit of measurement used, the longer the coast seems to be. This is called the Coastline Paradox and is a great example of fractal geometry.