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Irish Immigration to the US Begins, as well as Anti-Irish Sentiments
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The US Acquires Texas, Colorado, New Mexico, Arizona, California, and Parts of Utah and Nevada as a Result of the Treaty of Guadalupe-Hidalgo with Mexico
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Irish and Chinese Immigrants Hired for the Construction of the Trans-Continental Railroad
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Henderson v. Mayor of New York Declares State Control Over Immigration Laws Unconstitutional; puts Control of Immigration Legislation in Federal Control
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Chinese Exclusion Act Prohibits the Mentally ill, Poor, or Criminals from Entering the Country
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All US-Born are Citizens, According to 14th Amendment
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Mexican Revolution Increases Immigration to United States
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Congress Authorizes Police Presence on US-Mexico Border
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Labor Appropriation Act Establishes US Border Patrol
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Repatriation Act Forces Mexican Immigrants Back to Mexico
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Tens of Thousands of Japanese Ordered to be Sent to Internment Camps
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Census Shows an Estimated 2 Million Illegal Immigrants from Mexico Living in the United States
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Terrorist Attacks Spark Increased Military Presence Along Borders
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SB1070 Signed, Allowing States More Freedom to Combat Illegal Immigration
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President Obama Takes Executive Action to Prevent Some Illegal Immigrants from Deportation