| http://www.w3.org/ns/prov#value | - The main waves of immigrants in the 20th and 21st century were caused by wars and riots in the migrants' home countries: Jews from eastern Europe early in the 20th century, refugees from Hungary in the 1950s, from Chile and Vietnam in the 1970s.[citation needed] In the mid-1980s, there was an increase in the number of asylum seekers from countries such as Iran and Sri Lanka.
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