evidence: The name Jiangxi literally means "West of the [Yangtze] River," although the entire province lies south of it. This seeming paradox is caused by changes made in administrative divisions throughout China’s history. In 733, under the Tang dynasty, a superprefecture named Jiangnan Xi ("Western part of South of the Yangtze") Dao was set up, with its seat at the city of Hongzhou (now Nanchang). The present provincial name is a contraction of that name. [...] From 1950 to 1954 Jiangxi was part of the Central South greater administrative region. In 1954 Jiangxi province became directly subject to the central government. Jiangxi’s administrative divisions are arranged in a hierarchy of levels. Immediately below the province level are 11 prefecture-level municipalities (dijishi). Below that level are districts under municipalities (shixiaqu), counties (xian), and county-level municipalities (xianjishi). The lowest political units are the townships. [...] During the Spring and Autumn (Chunqiu) period (770–476 bce) of the Zhou dynasty (1046–256 bce), Jiangxi was a part of the kingdom of Chu. In the subsequent Warring States (Zhanguo) period (475–221 bce), the territory east of Lake Poyang was annexed by the kingdom of Wu. When a unified empire was established under the Han dynasty (206 bce–220 ce), Jiangxi became the western portion of the large province of Yangzhou and grew rapidly in population and culture.