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TIL: The last official use of a Guillotine was in 1977

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16KlX TIL that it is possible to reach negative Kelvin in advanced physics: a system's temperature is above 0K if adding energy increases its entropy (disorder of the particles). However, once the entropy is maximum, adding more energy makes it decrease, meaning the system's temperature drops below 0K.
OGOnY TIL Missy Elliott wrote and performed on Raven-Symone’s 1993 debut rap song, “That’s What Little Girls are Made Of.” Missy was left off the music video for not being physically attractive enough.
78WNL TIL: Until 2013, foreign chefs in Japan were legally barred from working in restaurants specializing in traditional Japanese food and could only serve foreign cuisine. Japan changed its regulations for foreign chefs after traditional Japanese cuisine won UNESCO designation.
e0MkJ TIL that the concept of a "rap battle" has existed since the 5th century CE. "Flyting", was a spoken word event where poets would trade insults back and forth in poetic verse.
ANagx TIL that the largest legal tender in the US was a $100,000 bill. It is currently illegal for an individual to be in possession of one.