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In page 201 BC:

"
  • The construction of city walls around Nanchang begins.[2]
  • King Xin of Han, in alliance with Modu Chanyu of the Xiongnu, launches a rebellion against the Han dynasty in the Taiyuan Commandery. He is defeated by Emperor Gaozu of Han and his generals, who chase Xin of Han into Xiongnu territory.[citation needed]