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 In 1845 the Potato Famine started in Ireland and caused many Irish people to migrate to America to prevent starvation and death.
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  This event is when immigrants started to flow from China due to the discovery of gold in California at the American River.
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  At this time the Mexican-American war ends, and citizenship is given for all Mexican residing in the southwest territory of America.
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  Source The Navajos where forced to walk from Arizona to New Mexico.
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  That is when citizens were granted rights to vote without discrimination.
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  This law was signed to restrict immigration from China resulted after the Gold rush immigration flow, and continuously renewed for decades after.
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  The law restricted "aliens ineligible for citizenship" from agricultural rights in California.
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  Picture Source In 1924, the border patrol of the United States was first established.
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 Filipinos reclassified as U.S. citizens in 1942 and were allowed to register in the military.
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  A law signed to legalize undocumented immigrants present since the year of 1982.
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 The United States law of Immigration Act increases the number of immigrants to 700,000 each year.
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  Bill that provides a pathway to citizenship for undocumented youth who immigrated as children with their families to the United States. Bill has passes House in 2010 but not the senate.
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  picture source Proposition 300 was passed in Arizona denying state benefits and financial assistance to illegal residents.
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 A law signed to punish anyone who "harbor, employ, or transport" undocummented immigrants.
