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Subject
- American Civil War (1861-1865)3
- Causes3
- History3
- War3
- Politics and government2
- BIOGRAPHY & AUTOBIOGRAPHY / Presidents & Heads of State1
- Clay, Henry, 1777-18521
- Compromise of 18501
- Douglas, Stephen A. (Stephen Arnold), 1813-18611
- Economic aspects1
- Economic development1
- Economics1
- Equality1
- HISTORY / General1
- Lincoln, Abraham, 1809-18651
- Political and social views1
- Slavery1
- Social aspects1
- Social mobility1