Causes History 104 Politics and government 45 Slavery 40 Antislavery movements 32 Political aspects 27 Influence 15 more ... African Americans 14 Nationalism 13 Secession 12 Public opinion 11 Race relations 10 Social aspects 10 Political activity 9 Social conditions 9 Political and social views 8 Abolitionists 7 Fugitive slaves 7 Political culture 7 Foreign relations 6 Moral and ethical aspects 6 Press and politics 6 World War, 1914-1918 6 Emancipation 5 History, Military 5 Sectionalism (United States) 5 Slaves 5 Civil rights 4 Enslaved persons 4 Government, Resistance to 4 less ...