What is the positive significance of immigration to history?

"Going to the East" is one of the largest migration movements in China's history, which has exerted a wide and far-reaching influence on the society in North China and Northeast China. It is of great academic value in the study of Chinese immigration history to study "Crossing the Kanto", and to explore the reasons, processes, forms, routes, sources and distribution of immigrants, as well as the historical role and influence of "Crossing the Kanto". In addition, the discussion on "de-orientalization" is also of academic significance to the study of social changes, the shaping of regional culture and the evolution of population and geographical pattern in North China and Northeast China.

"Going to the East" has greatly eased the population pressure in North China (especially in Shandong), reduced social unrest and contributed to social stability. Immigrants from North China fought bloody battles in Northeast China, and they returned their hard-earned income to their hometown of Sang Zi, which provided valuable funds for the regional economic development in North China, thus promoting the local economic development to a certain extent. "Going East" has accumulated into a social custom in North China, which has become the natural reaction of ordinary people when natural and man-made disasters occur there. Of course, because most people who travel to the east are strong laborers from one household to another, this has also caused a series of problems such as the imbalance of rural population structure, the sharp decline of rural labor force and the barren farmland in North China. Therefore, The Journey to the West has also had a negative impact on the social development in North China. In addition, as far as China as a whole is concerned, the migration from narrow townships to wide townships has also made the geographical distribution pattern of population in the vast areas of northern China more reasonable.