Did Han people communicate during the Eastern Jin, Southern and Northern Dynasties? Do Han people in the north run away from time to time?

Sixteen countries in the northern part of the Eastern Jin Dynasty, domestic chaos, the northern Han people moved south. As for the Northern and Southern Dynasties, it has been 100 years, and the southward migration has basically ended. Coupled with a large number of sinicization in the northern dynasties, there will be population migration to the south. The reason why the Eastern Jin Dynasty moved south was that the northern regime changed frequently and the management was unfavorable. During the Northern and Southern Dynasties, the confrontation between the North and the South stopped moving southward, and China basically took shape!