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Period: 207 to 221
Qin Dynasty Great Wall Construction
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214
Qin Shi Huangdi decides to join exsisting border walls to form a united defence against the Mongols
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Period: 221 to Mar 16, 777
Time of the Warring States - minor walls created around borders
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Mar 22, 1368
Ming Dynasty comes into power - major renovation takes place, spanning 200 years, wall is strengthened once more
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Period: to
A time of revolt, international war - wall suffers badly from damage and neglect, and much of it collapses
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Chairman Mao's attempt to revolutionise china required that stone be taken from the Great Wall for other construction
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Chairman Mao ordered restoration of the Wall
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Deng Xiaoping says - "Let us love our China and restore our Great Wall!"
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Seperate Dynasties rebuild the wall
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Song Dynasty lets the wall crumble without repairing it, Mongols invade
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Period: to Mar 22, 617
The Sui dynasty builds and repairs great Wall
