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The earliest Chinese cities are built with protective walls.
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China's first emperor, Qin Shi Huangdi. builds the first Great wall under General Meng Tien's command.
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Emperor Wu Di extends the Great Wall into the western
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Mongol leader Genghis Khan breaks through neglected Great Wall; conquers China in 1215
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Rule of the Ming dynasty, when the Great Wall is rebuilt
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the Manchu make the great wall serve as a defensive border.
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Deng Xiaoping orders to rebuild the Great Wall.
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now the great wall of china is a tourist attraction and a famous landmark of china