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Rockets are invented in China.
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Chinese use rockets arrows against Mongols.
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Rockets have found their way to European arsenals.
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Rockets are used in the seige of Orleans.
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Amonk named Roger Bacon worked on forms of gunpowder used in rockets.
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In 1650, a Polish artillery expert, Kazimierz Siemienowicz, published a series of drawings for a staged rocket.
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Germany starts to manufacture rockets weighing from 52 to 120 pounds.
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Rockets are used in the War of 1812.
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Rockets take man to the moon.
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The Spirit rover (MER-A) lands on Mars.