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The Naturalization Law of 1802
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The Monroe Doctrine
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U.S.-Mexican War starts
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U.S.-Mexico War ends
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Naturalization Act of 1855
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Naturalization Act of 1870
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Page Act
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Puerto Rico invaded by the U.S.
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Roosevelt Corollary to the Monroe Doctrine
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Occupation of Haiti begins
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The Immigration Act of 1917
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Period: to
'Gays' and 'lesbians' barred entry
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The Good Neighbor Policy starts
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Period: to
The Bracero Program
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The Bay of Pigs Invasion in Cuba
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Immigration and Nationality Act of 1965
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Chilean coup d'état
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Supplemental Appropriations Act/Helms amendment
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Period: to
Peple with HIV denied entry
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Matter of Toboso-Alfonso
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Immigration Reform Act of 1990
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Immigration Act of 1990
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Period: to
Defence of Marriage Act
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U.S. Congress approves Plan Colombia
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Venezuelan coup d'état attempt
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HIV removed from a list of diseases that ban people from entering the U.S.