Did northerners immigrate to the south during the Song Dynasty? Don't copy the party.

The aborigines in the Yangtze River valley are Vietnamese, right? Our teacher said that Thais originally moved from the Yangtze River valley. In fact, the Chinese nation has been developing eastward and southward, and the aborigines in the newly expanded areas have either been assimilated or driven to other places. Southern Song immigrants are one of the three largest immigrants in China history. Yongjia South Crossing, Anshi Rebellion, Song Dynasty moved south, a large number of northern immigrants moved south, the Han people who moved south merged with the southern minorities, and the Han people who stayed in the north gradually merged with the northern minorities. The whole history of the Han nationality is a history of ethnic integration.

As for the difference between the Southern Song Dynasty and the Northern Song Dynasty, Hui Zong, the emperor of Qin Dynasty in the Northern Song Dynasty, was captured by the Jin people, and a large area of northern territory was lost. Zhao Gou, Emperor Gaozong, proclaimed himself emperor in Yingtianfu, and later established the Southern Song Dynasty with Lin 'an as his behavior. The border of the Southern Song Dynasty was generally bounded by Huaihe River and Dasanguan, and the land in the northern part of the Northern Song Dynasty was completely lost.