In a narrow sense, Jiangnan refers to the eastern region beautified by literati, that is, it does not include Fujian Province and Nanjing in southern Zhejiang to Suzhou and Hangzhou, but includes parts of Anhui Province, Jiangxi Province and Zhejiang Province south of the Yangtze River, that is, southern Jiangsu and northern Zhejiang, southern Anhui and northeastern Jiangxi. Some areas north of the lower reaches of the Yangtze River, such as Yangzhou, Chuzhou, Taizhou and Nantong. Although geographically located in the north of the Yangtze River, it is similar to Jiangnan in economy and culture, and it is also a component of Jiangnan in cultural sense. Some areas south of Taihu Lake and east of Qiantang River, such as Shaoxing and Ningbo, are not counted as Jiangnan area. Jiangnan in the cultural sense refers to "Jiangnan" in the cultural sense, that is, Jiangnan in a narrow sense, which is equivalent to Jiangdong area, including southern Jiangsu (and Yangzhou), Shanghai, northeastern Jiangxi, northern Zhejiang and southern Anhui (and Chuzhou). Since the Eastern Jin Dynasty, the gentry of the Central Plains went south, and the Han regime made Jinling its capital. Jiangnan replaced the Central Plains as the most developed economic and cultural core in China.