Why did the ethnic minorities of the Jin Dynasty go south?

1. The mistakes of immigration policy in Wei and Jin Dynasties and the Eight Kings Rebellion.

2. The mistakes of immigration policy in Wei and Jin Dynasties. As early as the reign of Cao Wei, due to years of war at the end of the Eastern Han Dynasty, the population dropped sharply, the central and local finances plummeted, and agriculture was abandoned. Therefore, the imperial court issued the policy of "emigrating to the real frontier", and moved the conference semifinals outside the northern frontier fortress to the mainland. . . The Hu people who moved in in the early days were mostly used for rich households and laborers, and most of them belonged to Han landlords. In addition to Cao Wei, Shu Han also recruited a large number of Qiang and Bian soldiers in the Northern Expedition. During the suppression of Shanyue, Wu Dong also plundered a large number of Shanyue people as laborers. The Western Jin Dynasty fundamentally changed the political structure of the three countries in the Eastern Han Dynasty. The Eastern Han Dynasty had a tradition of attaching importance to the outside and neglecting the inside, and the dignitaries who ruled the frontier all attached importance to the model policy. After Cao Cao levied Wu Huan, he really established the absolute power of the north; Gongsun Zan, Dong Zhuo, Marten, etc. Only by suppressing border troubles directly can we get rich, and only by governing the border areas can we have the strength and prestige to win the Central Plains. Militarily, although many frontier generals used Hu Bing, Hu and Han lived together, and there was no such thing as organizing armed conference semifinals in the Western Jin Dynasty and even inviting them to participate in the war. Before the Five Rebellions in China, Jiang Tong, a man of insight, and others put forward "On Migration and Dijon", demanding that the Western Jin Dynasty expel barbarians quickly. However, Jia Nanfeng, the Empress of Jinhui and the rulers of the Eight Kings Rebellion were short-sighted, which caused the country and the nation to be in deep disaster.

The Eight Kings Rebellion broke out in the Western Jin Dynasty. All the princes are preparing horses and constantly recruiting. Some vassals in the frontier began to attract the attention of these conference semifinals, and many conference semifinals who were originally farmers also armed themselves to participate in the battle. For example, Schleswig, who later established the post-Zhao Dynasty, belongs to this kind of person. He first joined the team of Chengdu Wang Sima Ying. . Other vassals directly contacted the strongmen of the conference semifinals beyond the Great Wall and let them enter the customs with high officials and generous salaries. Liu Yuan, for example, was a southern Xiongnu Khan, and later established the Han State. He was knighted by Sima Yan in his early years, and was invited by Sima Ying to fight in the south during the Eight Kings Rebellion, and finally became a champion general. The end result is to lure the wolf into the room. These barbarians who moved in were oppressed or wanted to seek hegemony. They expelled Han officials by force and established their own country. The first was the Han State established by Liu Yuan (later changed to former Zhao). Hu people generally don't know how to govern the country, and some great Hu countries soon fell apart in struggles of all sizes, forming a situation of "five Hu and sixteen countries". In other words, the conference semifinals directly created a rebellion in the mainland. Many people misunderstand that Wu Luanhua is rashly defined as a simple foreign invasion, but it is not. They call it anti-customer-oriented: many of the founding monarchs of the sixteen countries lived in Han as early as their parents' time.