The longest and largest population movement peak in ancient history of China.

The Southern and Northern Dynasties and the Northern and Southern Dynasties were all great immigrants for hundreds of years. The five lakes moved inward and the Han people moved south.

Please see:

During the Three Kingdoms period (3rd century A.D.), the political situation was unstable, wars continued, and the people in the Central Plains were in dire straits, prompting the population in the north to move southward. During the Jin Dynasty (4th century), the northern minority regimes took turns to occupy the Central Plains, and ethnic conflicts intensified, which once again pushed northerners to move south. After Sui and Tang Dynasties (7th and 8th centuries), the south was still the first choice for northerners to migrate. After so many times of population migration from north to south, the population distribution pattern was finally formed after the Anshi Rebellion in 754 AD. In the early years of the Northern Song Dynasty (980-989 AD), the ratio of registered permanent residence between the north and the south was about 6 to 4. In the early years of the Ming Dynasty (65438+the late 4th century), the ratio of registered permanent residence between north and south was about 7 to 3.

Since Qin and Han Dynasties, the population of our country has been changing and developing. At the same time, the flow of population, that is, immigration, has always existed. According to statistics, there are three important immigration activities in China.

(1) The population moved southward after the Yongjia Rebellion in the late Western Jin Dynasty. Its time is as long as 100 years, and there are four migration climaxes, with about 2 million people.

(2) The second large-scale population migration to the south after the Anshi Rebellion. An Shi Rebellion is an important event in the history of our country. Since then, China's politics, economy and culture have undergone a major turning point.

(3) After the Jingkang Rebellion, the population moved south. This figure is about 5 million. 1 126, nomadic people went south, and wars spread all over the middle and lower reaches of the Yellow River. The following year, the Northern Song Dynasty perished, and Zhao established the Southern Song Dynasty, with its capital in Lin 'an. Subsequently, the population also moved south under the call of the Southern Song Dynasty.

Of course, there are also many immigration incidents in history. Going to the east, moving westward, moving to Taiwan Province, Jiangxi filling Huguang, Huguang filling Sichuan, moving inward during the Anti-Japanese War, third-line construction, intellectuals going to the countryside, Three Gorges immigrants and so on.