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TIL the root of the word "ruthless" the the verb "to rue" meaning “to feel sorrow or regret”

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0vJL TIL When Paris fell to the Nazis on June 14, 1940, French resistance fighters cut the elevator cables to the Eiffel Tower. This meant that if Hitler wanted to hoist a swastika flag, a soldier would have to climb the roughly 1710 stairs to the summit platform.
Oo6RX TIL the word quarantine derives from the italian word quaranta, meaning forty - because in times of the Black Death ships had to wait 40 Days outside the port to prove they aren’t infested.
rR7Zw TIL Shun Fujimoto won a gold medal in Olympic Gymnastics against the USSR despite having a broken leg during his performance.
LQ1d9 TIL that in 1994, Japan had a GDP per capita that was 1.4 times larger than that of the US. In 2021, the US has a GDP per capita that is 1.8 larger than Japan’s
O7d6 TIL the first commercial digital navigation system, Etak, was released in 1985, before commercial GPS. The founders had to digitize their own maps which were so accurate they’re still in use today, including in Apple’s Maps app.