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The Great Depression was a worldwide economic depression. There was severe unemployment and acute deflation in almost every country of the world. For immigrants not only was there food shortages and job crises, put many had to face deportation.

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One of the major events that happened during WWll is the Holocaust. Many Jews were being deported to the Auschwitz death camp. So the State Department issued visas to Germans. Many Germans, most of them Jewish, had immigrated to the United States. However, many of the visa went unissued.

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U.S. immigration policy was shaped by the Cold War. In many case special allowances were made for migrants coming from Communist countries. In 1956, 30,000 refugees from the failed anti-Communist Hungarian Revolution where admitted into the country.

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The Cuban Refugee Act permits more than 400,000 people to enter the United States. They fled because of Fidel Castro’s revolution, anti-communist Cubans received preferential immigration conditions because they came from a historically close U.S. neighbor and ally.

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The Immigration Act of 1965 abolishes quota system in favor of quota systems with 20,000 immigrants per country limits. Preference is given to immediate families of immigrants and skilled workers.