AP United States History

An intensive chronological study of the cultural, economic, political, and social developments that have shaped the United States from pre-Columbian times to the present.

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The Korean War never officially ended with a peace treaty; the fighting stopped in 1953 with an armistice that created the heavily fortified Demilitarized Zone (DMZ) that still exists today.
Though one emphasized reason and the other faith, the Enlightenment and the Great Awakening both encouraged colonists to question authority, paving the way for the American Revolution.
The political cartoonist Thomas Nast was so influential that his drawings helped bring down New York's corrupt "Boss" Tweed by exposing his crimes to a massive audience, including those who couldn't read.
The American victory at the Battle of Saratoga was the crucial turning point of the Revolutionary War, as it convinced France to enter the war as an American ally, providing vital naval and military support.
The invention of the steamboat was revolutionary because, for the first time, it allowed goods to be moved quickly and cheaply upstream against a river's current.
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