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TIL the 1930s VW logo incorporated a stylized swastika

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xVYmD TIL of Eben Byers, who won the US Amateur Golf Championship in 1906. After an injury a doctor recommended a popular ‘cure-all’ called Radithor. Due to taking this, his jaw had decayed. The deteriorating tissue was surgically removed, leaving him with a gaping hole where his mouth used to be.
7rjaM TIL Antiperspirant works best when applied at night, before bed. The antiperspirant compounds have time to be absorbed overnight and won't be washed away by a morning shower.
XkyE TIL in 1965, 25% of all black households in the US were headed by women. By 2010, that figure reached 72%.
9w7R6 TIL Tunisia had an infamously bad performance in modern pentathlon at the 1960 Olympics. One athlete nearly drowned; one got disqualified for firing a pistol too close to the judges; three fell off horses; and they were caught cheating in the fencing part of the event.
KO04G Protons are made up of even smaller particles called quarks, so you might expect that simply adding up the quarks’ masses should give you the proton’s mass. However, that sum is much too small to explain the proton’s bulk. And new, detailed calculations show that only 9 percent of the proton’s heft comes from the mass of constituent quarks. The rest of the proton’s mass comes from complicated effects occurring inside the particle, researchers report in the Nov. 23 Physical Review Letters.