London's Pall Mall became the first street lit by gaslight in 1807!
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Pierre Jaquet-Droz, a watchmaker, 240 years ago invented a robot that could write, and the parts could be interchanged to say whatever you want.
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The Taj Mahal took 20 years and 20 thousand men to finish!
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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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The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
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The first bomb dropped by the Allies on berlin in WW2 killed the only elephant in the Berlin Zoo.
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