What is immigration?

What is immigration?
Immigration is migration (move to live abroad), immigration cover a wide range, such as the colonial Americas, Europe and other places immigrants. Immigrants to those from a country or region, and move to permanent residence in another country or region, the livelihood of the settlers engaged in economic activities, and are lessons to local social obligations of individuals or groups.

Immigration movement is essentially different from the military invasion of armed conquest caused extensive migration of people, it is the human population in the development process of the expansion of activities is a form of economic expansion. Into the modern, because of advances in transport (objective conditions), and the level of economic development between different countries, widening the gap (subjective incentives), international migration is becoming frequent, countries are beginning to come regulate immigration legislation. For example, Canadian immigration categories to include: economic migrants, Skilled Independent class immigrants and family reunification. Which economic migrants are divided into investment immigration, immigration and self-employed entrepreneurs, three.

Migration is the phenomenon of mass migration, primarily because of the war, famine or political instability, such as the 1840s European agricultural failures coupled with the economic crisis lead to a large number of immigrants the United States (see the Irish famine); the late 20th century, 1997 years ago, the Hong Kong immigration, mainly due to "political fear."