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U.S. Constitution Signed
On September 17, 1787, The U.S. Constitution was signed by representatives of the thirteen colonies of the United States.
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The Naturalization Act of 1790
This act allowed freedom of citizenship to white males who had lived in the United States for two years or more. Read more -
Importation of Slaves Banned
Read moreThe importing of slaves to the United States was officially banned on January 1, 1808. -
The Treaty of Guadalupe Hidalgo
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 -
1850 First US Census
The first US census surveying whether people were born inside or outside of the United States was created. Read more -
Civil War Begins
The American Civil War broke out, pinning the North and the South against each other. [' >Read more](<a href='http://www.civilwar.com/) -
The Immigration Act of 1882
This act enabled the taxing of fifty cents on all immigrants coming into US ports. Read more -
Statue of Liberty
The French gift the United States with the Statue of Liberty to welcome new immigrants into the country. Read more -
The Mexican Revolution
The Mexican Revolution led to thousands of Mexicans fleeing to the United States for safety. Read more -
World War I declared
The start of World War I in the United States is declared by the United States Congress. Read more -
Immigration Act of 1924
The Immigration Act of 1924 limited the amount of people entering the country. Read more -
Immigration Reform and Control Act
The Immigration Reform and Control Act made it illegal to hire illegal immigrants. Read more -
Immigration Act of 1990
The Immigration Act of 1990 put new limitations of people entering the United States. Read more -
The Patriot Act
After the attacks by terrorists on September 11, 2001 the Patriot Act was created to counter terrorism. Read more -
Senate Bill 2611
Senate Bill 2611 was passed, enabling 370 miles of fencing between the United States and Mexico. Read more.