Emigration
Emigration is the action and the phenomenon of leaving one's native country to settle abroad. There are many reasons why people might choose to emigrate. Some for political or economical reasons. Some might have found a spouse in another country while on holiday. Many older people living in countries with cold climates will choose to move to warmer climates when they retire.Many political or economical emigrants move together with their families toward new regions or new countries where they hope to find peace or job opportunities not available to them in their original location. Throughout history a large number of emigrants return to their homelands, often after they have earned sufficient money in the other country. Sometimes these emigrants move to countries with big cultural differences and will always feel as guests in their destinations, and preserve their original culture, traditions and language, sometimes transmitting them to their children. The conflict between the native and the newer culture may easily create social contrasts, generally resulting in an uncomfortable situation for the "foreigners", who have to understand legal and social systems sometimes new and strange to them. Often, communities of emigrants grow up in the destination areas, collecting immigrants of common provenance, also to help for integration.
Emigration was a critic emergency between the 19th and the 20th century, when thousands of poor families left Western Europe for the United States, South America and Australia.
Emigration might also be due to population transfer and/or ethnic cleansing.