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  a United States federal law stating that no new slaves were permitted to be imported into the United States
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  Irish immigrated to the United States due to a lack of food in Ireland.
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  An act that banned the transport of Chinese immigrants into the United States
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  Laws that gave an applicant ownership of land. Brought a large group of immigrants into the country
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  While the railroad was being built, a large amount of railroad workers were Chinese or Irish
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  This was an act that limited immigration to 3% of what it was at the time.
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  Restriction on immigration from Mexico
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  Stated that non citizens do not receive benefits.
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  Restrictions added on immigration. The Department of Homeland Security was created and border control was increased. Allowed Federal agents to observe you or search personal records.
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  Criminalized being an illegal alien in Arizona.