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TIL the first concentration camp in Nazi Germany was used for communists, socialists, and other political prisoners.

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wL7YJ TIL The Saint Petersburg Sphinxes are about 3500 years old, Andrei Muravyov, who in 1830 was going on a pilgrimage to holy places. Ancient sculptures made him so impressed that he immediately sent a letter to the Russian Ambassador, in which he proposed to acquire them.
v1pd7 TIL: The Mandalorian was filmed on a giant virtual set, displaying the backgrounds with real-time graphics, captured in-camera.
e0e8g TIL of "My Way" killings: The singing of Frank Sinatra's "My Way" in karaoke bars in the Philippines has on multiple occasions led to fatal disputes, including one where a man was shot for "singing off-key"
Eg5gW TIL that we don't have 100,000km (60,000m) of blood vessels. It's actually around 9,000km to 19,000km
YpjOr TIL cherries are one of the only natural food sources of melatonin, the hormone that regulates the sleep-wake cycle