Exile
In the history of China, the vagaries and peasants, the natural disasters, , Land annexation, war, etc. may lead to the emergence of the problem of migrants. The first in the "poetry Taia Man" said: "I am hungry, people in exile." Guan Zhong in Qi put forward "ban migration, only the flow of people" policy to control the population flow. Han Dynasty migrant problem has been quite serious, Yuan hunting four years, Shandong flood, there are more than 70 million people; Yuan Feng four years, Kanto displaced two million; emperor when the emperor "to thousands of", Huaxin accommodation , "Quartet Magi doctor to avoid Jiangnan who is very public, are out of its next, everyone look at the wind." Song also has a large number of displaced people, Zhang Qixian "Luoyang old remembrance Qi Wang Zhang Ling public rumor": "so that recruit farmers, so that farming, migrants gradually." ...