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TIL that an octopus has 3 hearts and blue blood

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4BN TIL that Siddhartha Gautama (Buddha) shows up in Christian documents from the Middle Ages and was even canonized as St. Josaphat
xVxD1 TIL that Captain Video, the first American sci-fi TV series, was filmed live 5 to 6 days a week, totaling 1,537 episodes in only 6 years. Only 24 are known to remain.
b9x5p TIL in Victorian times, the cheapest form of accommodation available was a “penny hang”. You could literally pay a penny to sleep over a ROPE. This was commonly used by drunk sailors who had spent all of their money and is the origin of the term “hangover“.
Oo4Y7 TIL two of the three members of rock band ZZ Top have long beards. The third, Frank Beard prefers to be clean shaven.
nWVK7 TIL that The Beatles recorded German-language versions of their songs "I Want to Hold Your Hand" and "She Loves You" in 1964 made specifically for the German market.