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SUBJECT
ERA
- Africa, Colonization, and the Slave Trade: Beginnings – 1819
- Compromise and Conflict over Slavery: 1820–1860
- The Civil War and Reconstruction: 1861–1876
- Segregation, Migration and the Beginnings of Protest: 1877–1928
- The Great Depression and the New Deal: 1929–1940
- World War II and the Start of Desegregation: 1941–1954
- Civil Rights Protest and Progress: 1955–1971
- Expansion of Opportunities: 1972–Present