When did the Central Plains people start to migrate to the south of the Yangtze River? The background of the three migrations to the south is as follows

Residents of the ancient Yellow River valley moved south to the Yangtze River valley for a long time. According to the analysis of Neolithic settlement sites unearthed in modern times, the population of the ancient Yellow River basin moved southward for at least 6000 years.

At present, the recorded southward migration occurred in the Western Zhou Dynasty. At that time, the Zhou regime practiced the feudal system of slave-owner territory, and the fenced territory of some slave-owner nobles extended to the Yangtze River valley, such as Chu, Sui and Wu. This period was also the beginning of organized large-scale southward migration.

Since then, the most famous large-scale migration of northern population to the south has been from the Three Kingdoms to the Jin Dynasty. At the end of the Eastern Han Dynasty, social unrest, warlords scuffled and the social economy in the north was destroyed. The Western Jin Dynasty was briefly unified, but the social order was not stable, and warlords were constantly fighting. In addition, a large number of immigrants from northern minorities increased the economic pressure of northern society, which led to a large number of people from the Central Plains moving south to the Yangtze River basin. At first, it was a feudal clan, and later ordinary people joined the ranks of moving south.

In the middle of the Tang Dynasty, the Anshi Rebellion broke out, and this large-scale warlord war once again caused a large number of people in the north to move south. Since then, there has been a war in the north. After the Huang Chao Uprising War, the northern immigrants in the south of the Yangtze River have exceeded the number of residents in the Yellow River basin, and the economic center at that time began to shift to the Yangtze River basin.

The last migration of the northern population to the south occurred in the Jin and Yuan Dynasties. 1 127 the northern song dynasty was destroyed by the Jin dynasty, and then there was a distance war between the southern song dynasty and the Jin dynasty for more than 20 years. The battlefield was mainly in Huanghuai area, which caused a large number of residents in Huanghuai area to move south to escape the war. 1234, the Yuan Dynasty of Mongolia perished the Jin Dynasty, and the main battlefield was almost in the middle and lower reaches of the Yellow River. Later, the Yuan Dynasty and the Southern Song Dynasty launched a 20-year-long distance war in Jianghan area, which once again caused the population of the Yellow River basin to move southward.