SUI DYNASTY (1 ene 581 año – 1 ene 618 año)

Descripción:

After the chaotic years of the Northern and Southern Dynasties, the Sui Dynasty emerged. The emperors of the dynasty placed great emphasis on territory defense as northern nomadic tribes continued to be threats. Northern and southern walls were built throughout the period. Accordingly, about 2 million laborers did the work in a span of 28 years.

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