Editing Zhejiang (section)

===Sui and Tang eras===
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Zhejiang, as the heartland of the [[Jiangnan]] (Yangtze River Delta), remained the wealthiest area during the [[Six Dynasties]] (220 or 222–589), Sui and Tang. After being incorporated into the [[Sui dynasty]], its economic richness was used for the [[Sui dynasty]]'s ambitions to expand north and south, particularly into [[Goguryeo–Sui War|Korea]] and Vietnam. The plan led the [[Sui dynasty]] to restore and expand the network which became the [[Grand Canal of China]]. The Canal regularly transported grains and resources from Zhejiang, through its metropolitan center Hangzhou (and its hinterland along both the [[Zhe River]] and the shores of [[Hangzhou Bay]]) and from [[Suzhou]] and thence to the [[North China Plain]]. The débâcle of the Korean war led to Sui's overthrow by the [[Tang dynasty|Tang]], who then presided over a centuries-long golden age for the country. Zhejiang was an important economic center of the empire's [[Jiangnan]] East Circuit and was considered particularly prosperous. Throughout the [[Tang dynasty]], The Grand Canal had remained effective, transporting grains and material resources to [[North China plain]] and metropolitan centers of the empire. As the Tang dynasty disintegrated, Zhejiang constituted most of the territory of the regional kingdom of [[Wuyue]].