What is the relationship between the Han Dynasty recorded in Historical Records and Song Shu and Jiangnan in the Southern Dynasties?

Jiangnan in the Han Dynasty was sparsely populated, with backward farming methods, underdeveloped commodity exchange, and the degree of exchange between the rich and the poor was also very low.

Jiangnan described in Song Shu in the Southern Dynasty was very rich. In the harvest year, the grain harvested in one year could meet the needs of several counties, and the silks and silks produced could be used by people all over the world. Since Wei and Jin Dynasties, it has been gradually developed.

It reflects a process in which the economic center moved southward.

(2) The southward movement of the economic center of gravity caused the southward movement of the cultural center. In the Han Dynasty, the northern economy was developed and the northern culture was very prosperous. After the Southern Dynasties, the southern culture also developed due to the development of the southern economy. Thus, material civilization and spiritual civilization are interdependent, and spiritual civilization is the foundation of material civilization.