What was the biggest migration in history? What was the mode of immigration at that time?

The largest migration in China's history.

At the end of the Yuan Dynasty, the imperial court used troops abroad for years and exercised national oppression at home. Class contradictions and ethnic contradictions are increasingly intensified. In addition, floods and famines occur frequently in the Huanghuai River Basin, and the people are in dire straits. At the end of the Yuan Dynasty, besides the mutiny, floods, drought locusts and epidemics broke out one after another. The Yellow River and Huaihe River have repeatedly burst, making the land of the Central Plains? Countless people died, and many villages and cities became waste markets. According to the records of Yuan Dynasty, there were 19 droughts in Shandong, 17 in Henan, 15 in Hebei and 8 in Huaibei. Why? No one drifts with the dead? ,? Crops don't go into the ground, and people eat people? Especially in Henan, there are serious floods almost every year. The Ministry of Household Affairs of Zhongshu Province once said: "After years of floods and droughts, Tian He will not accept them. At that time, a minister of river management also said, Central Plains? After years of famine, the people lived in dire straits. According to historical records, from the first year of Zheng Zheng to 25 years, there were about 19 locust plagues.

Soldiers' chaos, floods and locust plagues complement each other, which makes the people either die or flee, and also leads to the vast territory of the Central Plains and the barren land. These reasons prompted farmers everywhere to rise up against the tyranny of the Yuan Dynasty. The continuous war and various disasters have seriously damaged the social economy. In the early years of Ming Dynasty, many places in China, especially most areas north of Jianghuai, presented a desolate scene.

At this time, Shanxi is relatively stable, with good weather and good harvest every year. Compared with neighboring provinces, Shanxi has a prosperous economy and a rich population. And a large number of refugees from other provinces also flowed into Shanxi, making Shanxi a densely populated area. After the Ming Dynasty overthrew the Yuan Dynasty, in order to consolidate the new regime, develop the economy and enhance the national strength. Zhu Yuanzhang made a major decision according to the actual situation of the country at that time: immigration for land reclamation? .

According to Records of Ming Taizu (Volume 193), people from ancient narrow countries moved to wide countries without losing their land. The people's cause remains unchanged. Now, after the soldiers passed, the fields were deserted and there were few residents. Since Shandong people and westerners entered this country, they have many teeth and eyes. It is wise to make Fending move to a spacious and leisurely place and farm acres. In this way, the national tax revenue increases and people's livelihood develops. After Zhu Yuanzhang ruled the country, most areas in Henan, Hebei and Shandong were uninhabited because of years of war. In order to balance the population and resume production, Zhu Yuanzhang adopted the immigration policy. At that time, more than one million people moved to all parts of the country through locust trees in Hongtong County. This immigration involves more than half of China, and its scope and influence are rare in the world. This migration is called the great migration of Sophora japonica population in Hongdong, Shanxi Province.