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TIL Rock and Roll was originally a euphemism for sex

Read more bbc.co.uk

via reddit.com

mxxKo TIL DAT was intended as a replacement for cassette tapes but was never adopted by the recording industry due to concerns over consumers being able to make high-quality tape copies
Rp1 TIL under apartheid, Japanese people in South Africa were considered white, while Chinese people weren’t
pbXG TIL customer loyalty cards that start with two “free” stamps/punches out of 10 are more than twice as likely to be used than 8-stamp cards.
b6Wp9 TIL shipbuilders often place "Sacrificial Anodes", which is metal nodules made of easily-reacting metal like zinc, to "force" the Anodising corrosion to happen on these "throwaway" spots rather than on the main steel hull of the ship
d90j TIL some mustard gas effects, once declassified, allowed the chemicals to be utilized to treat cancer. Mustard gas science is the precursor to chemotherapy.