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Subject
- Causes32
- War32
- History31
- American Civil War (1861-1865)16
- Slavery13
- Politics and government11
- Antislavery movements10
- African Americans4
- Moral and ethical aspects4
- National interest4
- Nationalism4
- Oregon question4
- Political aspects4
- Secession4
- Economic aspects3
- Influence3
- Lincoln, Abraham, 1809-18653
- Autonomy and independence movements2
- BIOGRAPHY & AUTOBIOGRAPHY / Presidents & Heads of State2
- Economic development2