History of the USA | How Did America Become a Superpower | USA History

History of the USA | How Did America Become a Superpower | USA History
Explore the complete history of the USA, from the Revolutionary War and Founding Fathers to the Civil War, World Wars, and its rise as a global superpower. Timeline included.

19th Century: Expansion & Civil War
Keywords: Westward Expansion, Manifest Destiny, Civil War, Abraham Lincoln, Slavery, Emancipation Proclamation.
The U.S. expanded westward (Louisiana Purchase, Manifest Destiny). Debates over slavery caused the American Civil War (1861-1865). President Abraham Lincoln issued the Emancipation Proclamation. The Union victory ended slavery.

20th Century to Present
Keywords: World War I, Great Depression, World War II, Cold War, Civil Rights Movement, 9/11.
The U.S. entered World War I and, after the Great Depression, World War II. The Cold War rivalry with the USSR defined decades. The Civil Rights Movement fought for equality. Events like 9/11 and advancements in technology shaped the modern era.
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