In which period did the historical phenomenon of the southward migration of northerners occur?

During the period of the Three Kingdoms, from the Northern and Southern Dynasties to the Song Dynasty, wars were frequent in the north and relative peace and tranquility in the south. The population of the Central Plains moved southward in large numbers.

In the last years of the Western Jin Dynasty, the "Yongjia South Teasing Limb Crossing" was the earliest large-scale southward migration event in the history of the feudal dynasty, and there were two northerners moving southward in history, namely the Anshi Rebellion of the Tang Dynasty and the "Jingkang Rebellion" of the Song Dynasty

1. To develop a large area of land in the south and to develop agriculture in the south;

2. A large number of handicraftsmen migrated, bringing advanced technology from the Central Plains to the south;

3. Compared with the Central Plains, the relatively stable environment and the rapid development of agriculture, industry and commerce have gradually shifted China's economic center of gravity from the Central Plains to the southern region.

The "Yongjia Nandu" in the last years of the Western Jin Dynasty is the earliest large-scale southward migration event in the history of the feudal dynasty, and there are two northerners moving southward in history, namely the Anshi Rebellion of the Tang Dynasty and the "Jingkang Rebellion" period of the Song Dynasty

1. The large area of land in the south can be developed, so that the agriculture in the south can develop rapidly;

2. The migration of a large number of handicraftsmen brought advanced technology from the Central Plains to the southern Weibuku;

3. Compared with the Central Plains, the relatively stable environment and the rapid development of agriculture, industry and commerce have gradually shifted China's economic center of gravity from the Central Plains to the southern region.

1. Before the Wei, Jin, Southern and Northern Dynasties, China's economic, political and cultural centers have always been in the Yellow River Valley and the Central Plains. Since ancient times, the reason for the continuous migration of surrounding ethnic groups is the relatively good natural living environment and advanced economic development level of the Central Plains.

2. During the Wei and Jin dynasties, the Tuoba Department of the Xianbei people originally lived in the north of the Great Xing'an Mountains and the area of the Erguna River, and the historical data of their life described as "the north of the secluded capital, the wilderness of the vast desert, the migration of animal husbandry, and the hunting industry", when Emperor Shengwu criticized Nanfen, they gradually moved to today's Yinshan and Hetao areas after their previous migration experience, and the natural geographical conditions here are more suitable for their animal husbandry production and life.

3. During the Wei, Jin, Southern and Northern Dynasties, wars continued, especially after the fall of the Western Jin Dynasty, there were other ethnic minorities other than the Han nationality who also established political power here, and these regimes often in order to expand their territory and enhance the strength of the whole country, so the means adopted were through the abduction of labor, wealth and land. Regimes often wage wars against each other, so frequent wars must be a cause of national migration.

4. In the cruel war, the number of people who became slaves was tens of thousands, and the fate of these slaves was that they could only be brought to the area controlled by the victors.

5. It is not uncommon for rulers to force population migration to concentrate in capitals or military towns for their own political and military needs.

6. After the end of the Eastern Han Dynasty, many people who moved to Liaodong were Han people in the Central Plains to escape the war, until after the Yongjia Rebellion, "the exiles and followers were one after another", and the population who moved to Liaodong was equal to "more than ten times the old land". In the period of the Sixteen Kingdoms, after the Zhang father and son controlled the Hexi region, the social order was relatively stable, so there was "the sun and the moon succession of Zhongzhou refuge". Such a phenomenon.

The main reason was the war, but it also promoted the great integration of the peoples of the North and the South.

1. The active integration of minority regimes.

Emperor Xuan of the Western Han Dynasty inherited the great ancestor Emperor Wu Emperor Yu Lie Jianwei Xiongnu, and when the strength of the Xiongnu five Dan was further weakened in the fight against each other, the evil department of Hu Han took the initiative to attach, and the Han Dynasty did not refuse, so that they migrated to the corner of the Great Wall, exchanged friendship, and finally achieved a win-win situation. Therefore, for the Central Plains Dynasty, the annexation of the leaders of minority regimes was a major event for the dynasty to achieve a sense of achievement.

2. Climatic factors: At that time, the northern climate became cold and became very harsh.

Mr. Zhu Kezhen once studied that from the beginning of the first century to 600 A.D. was a cold period, so the nomadic tribes in the north had to migrate south in order to find a warm area. 3. During the Eastern Han Dynasty, the Longyou zone was frequent. Flipping through the Fan to read the "Book of the Later Han Dynasty" Emperor Benji, you can often see that there is such an account in it "a great earthquake in such and such a place", and it is easy to understand why Zhang Heng would make a geodynamic instrument.

Therefore, the Qiang people and Di people of Longyou are all scrambling to be the first to attach. Fourth, the need for military force.

Since the Yellow Turbans in the Central Plains, wars have broken out frequently, and warlords have been fighting endlessly, whether the Central Plains Dynasty or local ambitious warlords such as Dong Zhuo and others, they are willing to control and mobilize the nomadic aristocratic army for their own use, and the other side is also willing to take this opportunity to get more rewards or opportunities to fight, and the two sides hit it off. Fifth, the need for population taxes.

During the Three Kingdoms period, the population plummeted, and each government needed to expand its population in order to pay taxes.

Since the end of the Eastern Han Dynasty, wars have been frequent in the north, while the south has been relatively stable, and residents in the north have moved south. The southward migration of the northerners brought advanced production technology from the Central Plains to the south, greatly promoted the development of the south of the Yangtze River, and laid the foundation for the southward migration of the social and economic center of ancient China.

In the late Tang Dynasty, the economic center of gravity began to gradually shift southward. During the Southern Song Dynasty, the economic center completed the transfer from the Yellow River basin to the Yangtze River basin.

Since the end of the Han Dynasty, there have been many wars in the north, and a large number of people have moved south to the south, mainly concentrated in Yizhou and Jingzhou in the middle reaches of the Yangtze River and Yangzhou in the lower reaches of the Yangtze River, followed by the Minjiang River basin and Lingnan region. Nearly 1 million people have migrated south, accounting for about 1.6 percent of the population of the south

First, the geographical location of the Central Plains has always been a place of contention for foreigners or soldiers, and it is convenient to manage and restrict the migration of their own people.

Second, the climate in the south is better, which is suitable for cultivation and habitation.

The third reason is the historical war, the war in the south is continuous, the population has dropped sharply, and other places need to be filled.

Fourth, for cultural reasons, there are many ancient capitals in the south, and it is a national policy that every king will implement to embrace cultural cities.