Which dynasty was the "Yongjia Rebellion"?

During the Western Jin Dynasty, during the reign of Emperor Huaidi and Chen Nian, large-scale wars continued in the Central Plains, and neighboring tribes who migrated one after another established imperial power, which was powerful and threatened the Western Jin regime, and eventually led to the disaster of Yongjia, and the central court was threatened.

During the period of Jin Jianwu, a large number of gentry, literati and civilians went south, which is known in history as "Yongjia Rebellion, which was the first large-scale southward migration of Han people in the Central Plains". After crossing the river in the Western Jin Dynasty, its capital was Jiankang (now Nanjing), which was called the Eastern Jin Dynasty in history.

Extended data:

After the Han Dynasty, many chaos and foreign invasions led to a large number of northerners migrating to the south of the Yangtze River. After Yongjia Rebellion, the scale of Central Plains immigrants increased.

The first route is to move south, cross the Huaihe River to the middle and lower reaches of the Yangtze River, move the political and economic center of gravity south, and move cultural expansion south. The second road is Liaodong area, and it reaches Wang Jun, Pingzhou Secretariat, Xianbei section in western Liaoning and Murong section, which occupied Youzhou at that time.

Mu Rongchui has successively set up Jiyang County, Chengzhou County, Yingqiu County and Tang Guo County to resettle refugees from Jizhou, Yuzhou, Qingzhou and Bingzhou respectively. In addition, there are areas from the Central Plains to Bingzhou in the north and Jingxiang in the south.

These spontaneous immigrants, together with large-scale and frequent government forced immigrants caused by wars, not only promoted ethnic integration, but also expanded China's cultural frontier.

Baidu Encyclopedia-Yiguan Du Nan