Cenxi or Sum Kai is a county-level municipality and is also an administrative district of Wuzhou, Guangxi, China. The first state that governed the current area of Cenxi was Nanyue Kingdom, which was succeeded by Han Dynasty, who then established Mengling County on current site of Cenxi. During Southern Dynasties on A.D. 524, Yongye Commandery was established on current site, whereas during Sui Dynasty on A.D. 583, its administrative level was changed to County. Later in Tang Dynasty on A.D. 622, it was restructured to Nanyi Zhou (eqvt. of Swiss cantons and American states), which was subdivided into 3 more counties. On A.D. 757, the central county was renamed to Cenxi County, which became the precursor of current name. During Northern Song Dynasty on A.D. 973, the aforementioned 3 counties were reintegrated into Cenxi County, and then this name was kept going on through various dynasties and states.
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