Please give an example to explain why ethnic integration had become a trend at that time.

Great ethnic integration in the North:

The ethnic minorities of Xiongnu, Xianbei, Jiedi and Qiang who moved to the Central Plains continuously after the end of the Eastern Han Dynasty, after living together with the Han nationality for about 4 years, learned from each other and complemented each other in production, by the end of the Northern Dynasty, the differences between Hu and Han gradually disappeared, realizing the great ethnic integration. At that time, the study of Han culture by ethnic minorities essentially promoted their feudalism. Feudalization is conducive to the integration of ethnic groups. The realization of national integration prepared conditions for the unification and prosperity of the Sui and Tang Dynasties.

The essence of the great integration of northern nationalities:

The essence of ethnic minorities and Han people's intermarriage and living together, complementary production and learning Chinese culture is to promote their feudalism.

ethnic integration and assimilation:

ethnic integration refers to the mutual influence of several ethnic groups on the same economic and ideological basis, which is the result of close contact and communication between many ethnic groups in economy, politics, culture and living habits.

national assimilation refers to the phenomenon that a nation (or part of it) loses its own national characteristics and becomes another nation. There are two forms of national assimilation in history, one is forced assimilation and the other is natural assimilation.

In ancient China, the process of ethnic integration generally refers to the process of feudalization of ethnic minorities, or the process of ethnic minorities living in the countryside to settle in agriculture. Therefore, ethnic integration is a historical progress, an important condition for multi-ethnic countries to move towards reunification due to division, and a process of the gradual formation of the Chinese nation.

The Three Kingdoms, the Jin Dynasty, the Southern and Northern Dynasties is a climax of ethnic integration, which is a major feature of this historical period, which is manifested in the following aspects:

1. Ethnic migration in two directions: the five lakes moved inward and the northern people moved south.

2. Ethnic integration in three stages: from the end of the Eastern Han Dynasty to the beginning of the Western Jin Dynasty, ethnic integration appeared along the Great Wall after the five lakes moved inward; During the Sixteen Countries Period of the Eastern Jin Dynasty, the pace of integration accelerated. During the Northern Wei Dynasty, ethnic integration reached a climax.

3. Four ways of integration: ethnic migration, friendly exchanges, joint struggle and minority regime reform.

The development achievements of ethnic integration in the Northern and Southern Dynasties:

By the end of the Northern and Southern Dynasties, people of all ethnic groups had been basically the same as the Han nationality in economic life, cultural language, customs and habits. Gao Huan, a powerful minister of the Eastern Wei Dynasty, was subordinate to Xianbei people, Han people and other people of all ethnic groups. He spoke to the sergeant in Xianbei and Chinese, explaining that people of all ethnic groups understood these two languages at that time. At that time, there were no characters in Xianbei, and imperial edicts were written in Chinese characters. Therefore, officials at all levels had to be able to write Chinese characters, especially the upper-class aristocrats in Xianbei. When Emperor Xiaowen reformed, he changed his surname Tuoba to Yuan and married the upper-class landlords of the Han nationality. During this period, the influence of the Han nationality on ethnic minorities was the mainstream, but when people of all ethnic groups merged with the Han nationality, they also brought their excellent ideology and culture, such as Hu Le, Hu Dance, Hu Chuang and Hu Bing, respecting women's consciousness, and weakening the concept of Yi Han. Injecting fresh blood into Han culture also promoted the awakening of feminist consciousness and enlightened national policy in Sui and Tang Dynasties.