Periods - Browse By Category - United States

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Colonial North America
1492 to 1776
United States, North America
Formation (U.S.)
1776 to 1789
United States, North America
Early Nation (U.S.)
1789 to 1849
United States, North America
Civil War Era (U.S.)
1849 to 1865
United States, North America
Reconstruction & Rise in Power (U.S.)
1865 to 1914
United States, North America
World War I Era (U.S.)
1914 to 1919
United States, North America
Roaring Twenties & Great Depression
1920 to 1939
United States, North America
World War II Era (U.S.)
1939 to 1945
United States, North America
Cold War (U.S.) & Counterculture
1945 to 1991
United States, North America
World Superpower (U.S.)
1991 to 2020
United States, North America