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The Declaration of Independence
The Thirteen Colonies declare their independence from Britain on July 4, marking the birth of the United States. -
End of the American Revolutionary War
The Treaty of Paris was signed, officially ending the war and recognizing American independence. -
Constitutional Convention
Delegates meet in Philadelphia to draft the U.S. Constitution, establishing the framework for the federal government. -
Louisiana Purchase
The U.S. acquires a vast territory from France, doubling the size of the nation and expanding westward. -
War of 1812
Conflict between the United States and Britain, often considered a second war for independence. -
Missouri Compromise
An agreement that allowed Missouri to enter as a slave state and Maine as a free state, aiming to maintain the balance of power in Congress. -
Indian Removal Act
Legislation signed by President Andrew Jackson facilitating the relocation of Native American tribes to lands west of the Mississippi River. -
Annexation of Texas
In 1845, Texas became part of the United States after being an independent country. This caused tension with Mexico and led to a war. -
Compromise of 1850
A series of laws aimed at resolving disputes between slave and free states, including the controversial Fugitive Slave Act. -
Election of Abraham Lincoln
Lincoln's election as the first Republican president prompts Southern states to begin secession, setting the stage for the Civil War.