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TIL; that in the 19th century puberty began at 15 for girls and 16 for boys, instead of 11 for girls and 12 for boys as it is now.

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yV5Oa TIL that Gore-Tex is used in surgeries ranging from vascular grafts to synthetic knee ligaments. Also known as Teflon, this material is arranged in a mesh, which allows human tissues to grow through it. The rate of rejection is extremely small due to the material being inert in the body.
loDwA TIL France performed guillotine executions as recently as 1977
xm0w TIL, that when he was Knighted, the producer of The Beatles Sir George Martin, chose the motto ‘Amore Solum Opus Est’ or 'All You Need is Love’.
p8wbb TIL before fame, Bruce Springsteen acquired his nickname "The Boss" because he took on the task of collecting the band's nightly pay from their club gigs and distributing it amongst his bandmates. Springsteen is not fond of this nickname, due to his dislike of bosses, but has tacitly accepted it.
Mej48 TIL In the '80s, the drinking age was raised from 18 to 21 nationally because Reagan passed a bill in 1984 that required states to raise their drinking age to 21. They don't have to make it 21 per se, but if they chose to opt-out, they would simply be ineligible for federal highway funding.