Once in the Ming Dynasty, Zhu Yuanzhang defeated Chen Youliang and the Yuan government step by step in his Yingtian (now Nanjing) and replaced the Yuan Dynasty, which was the only regime that unified China from the south.

But this seems to be the only time in history, because since the economic center of gravity moved south, except for the Southern Song Dynasty, the political center of the whole Greater China is in the south.

North China and South China refer to two general areas of China. China's geography is bounded by the Qinling-Huaihe line, which divides China into two parts: the south and the north.

The geographical scope of the South includes East China, South China and Southwest China. The geographical scope of the north roughly includes North China, Northeast China and Northwest China.