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Emigration is the act of leaving one's country or region with the intent to settle permanently in another. It is the same as immigration but from the perspective of the country of origin. Human movement in general is termed migration. There are many reasons why people might choose to emigrate; these reasons can be divided into "pull" factors and "push" factors. Better economic opportunity is an example of a "pull" factor, as is a quest for a better climate. Fears of poverty or of religious or political discrimination are "push" factors. Seeking refuge from conditions not directly of one's making is interim to possible emigration. Emigration has had a profound influence on the world in the 18th, 19th, 20th and 21st centuries. Some noted examples include the millions of people who left Europe in the 18th and 19th centuries or the recent emigration of Mexicans into the United States. The term "emigrate" usually suggests voluntary movement. However, involuntary migration refers to groups that are forced by their enemies to leave through population transfer or ethnic cleansing. (via Freebase)