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On September 17, 1787, The U.S. Constitution was signed by representatives of the thirteen colonies of the United States.
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This act allowed freedom of citizenship to white males who had lived in the United States for two years or more. Read more
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Read moreThe importing of slaves to the United States was officially banned on January 1, 1808.
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The Treaty of Guadalupe Hidalgo was a peace treaty signed after the Mexican-American war which allowed 80,000 Mexicans to become citizens. Read more
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The first US census surveying whether people were born inside or outside of the United States was created. Read more
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The American Civil War broke out, pinning the North and the South against each other. [' >Read more](<a href='http://www.civilwar.com/)
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This act enabled the taxing of fifty cents on all immigrants coming into US ports. Read more
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The French gift the United States with the Statue of Liberty to welcome new immigrants into the country. Read more
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The Mexican Revolution led to thousands of Mexicans fleeing to the United States for safety. Read more
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The start of World War I in the United States is declared by the United States Congress. Read more
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The Immigration Act of 1924 limited the amount of people entering the country. Read more
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The Immigration Reform and Control Act made it illegal to hire illegal immigrants. Read more
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The Immigration Act of 1990 put new limitations of people entering the United States. Read more
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After the attacks by terrorists on September 11, 2001 the Patriot Act was created to counter terrorism. Read more
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Senate Bill 2611 was passed, enabling 370 miles of fencing between the United States and Mexico. Read more.
