1 thought on “China”

  1. In c. 220 B.C., under Qin Shi Huang, sections of earlier fortifications were joined together to form a united defence system against invasions from the north. Construction continued up to the Ming dynasty (1368–1644), when thee Great Wall became the world’s largest military structure. Its historic and strategic imlortance is matched only bby its arcdhitectural significance.

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