The Great Wall of China is a barrier fortification in northern China running west-to-east 13,171 miles (21,196 km) from the Jiayuguan Pass (in the west) to the Hushan Mountains in Liaoning Province in the east, ending at the Bohai Gulf. It crosses eleven provinces/municipalities (or ten, according to some authorities) and two autonomous regions (Inner Mongolia and Ningxia).
More about: Great Wall of ChinaDefinition
Timeline
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771 BCE - 256 BCEEastern Zhou Dynasty in China.
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c. 481 BCE - 221 BCEWarring States Period in China.
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221 BCE - 206 BCEThe Qin Dynasty in China.
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c. 221 BCEConstruction of Northern Frontier wall by Shi Huangdi, First Emperor of China, precursor to Great Wall.
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220 BCE - 210 BCEEmperor Shi Huangti initiates building the Great Wall of China and the Grand Canal.
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117 BCE - 100 BCEHan emperors extend the western part of the Great Wall of China.
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304 CEThe nomadic Xiongu break through the Great Wall of China.
