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Human migration is the movement of people from one place to another, [1] with intentions of settling, permanently or temporarily, at a new location (geographic region). The movement often occurs over long distances and from one country to another (external migration), but internal migration (within a single country) is the dominant form of human migration globally.
An excess of people entering a country is referred to as net immigration (e.g., 3.56 migrants/1,000 population). An excess of people leaving a country is referred to as net emigration (e.g., -9.26 migrants/1,000 population). The net migration rate indicates the contribution of migration to the overall level of population change.
There are a few countries in the Caribbean which had very high migration rates to the United States in the 1980s and 1990s but recorded higher population totals in recent years, indicating significant return migration from the U.S., such as Trinidad and Tobago between its 2000 and 2011 censuses.
The civil rights movement led to the replacement [7] of these ethnic quotas with per-country limits for family-sponsored and employment-based preference visas. [8] Between 1970 and 2007, the number of first-generation immigrants living in the United States quadrupled from 9.6 million to 38.1 million residents.
Net overseas migration increased from 30,000 in 1993 [123] to 118,000 in 2003–04. [124] The largest components of immigration are the skilled migration and family re-union programs. The mandatory detention of unauthorised arrivals by boat has generated great levels of controversy. During 2004–05, a total of 123,424 people immigrated to ...
The top ten birth countries of the foreign born population since 1830, according to the U.S. census, are shown below. Blank entries mean that the country did not make it into the top ten for that census, not that there are no data from that census. The 1830 numbers are from immigration statistics listed in the 2004 Year Book of Immigration ...
Net migration rates per 1,000 people in 2023. On net people travel from redder countries to bluer countries. Legal status of persons Birthright Birthplace Aboard aircraft and ships Jus sanguinis Jus soli Birth tourism Nationality Citizenship missing multiple transnational Naturalization Ius Doni Oath Test Law Lost citizenship denaturalized renounced Immigration Alien Enemy Criminalization ...
Using 130 years of data on historical migrations to the United States, one study found "that a doubling of the number of residents with ancestry from a given foreign country relative to the mean increases by 4.2 percentage points the probability that at least one local firm invests in that country, and increases by 31% the number of employees ...