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TIL Cyrus the Great of the Persian Empire created the first declaration of human rights and is honorably mentioned in the Bible, Jewish Bible (Tanakh), and Quran.

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6jxJ TIL: Paul McCartney has the world record for longest gap between top 10 hits at over 29 years
PYlMw TIL Al-Khwarizmi from Baghdad around A.D. 800 worked on a value of pi calculated to four decimal digits: 3.1416. The term 'algorithm' derives from his name, and his text Kitab al-Jabr wal-Muqabala gives us the word 'algebra' (from al-Jabr, which means 'completion' or 'restoration')
WdY4 TIL African Grey Parrots can develop minds equivalent to that of children ages 4-6
jbLa TIL there are less blimp pilots in the world than astronauts
6abQ TIL of the Trachtenberg speed math system used to multiply large numbers in your head. It was developed by a Jew, Jakow Trachtenberg, while being held in a nazi concentration camp. He developed this technique as a distraction from the horrors surrounding him.