The average life span of a peasant during the medieval ages was 25 years.
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During the Gold Rush in 1849, some people paid as much as $100 for a glass of water!
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Each king in a deck of playing cards represents a great king from history: spades - King David, clubs - Alexander the Great, hearts - Charlemagne, and diamonds - Julius Caesar.
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Leonardo Da Vinci made a robotic lion in 1515 that would walk, sway, open its mouth and move its tail - it even had a compartment that opened to present flowers.
22
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
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In 1982, a high school student from Los Angeles, California unscrambled the Rubik's Cube in 22.95 seconds.
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