Secession 72 History 47 Politics and government 29 Slavery 15 Campaigns 10 Causes 9 Autonomy and independence movements 8 more ... Self-determination, National 6 Separatist movements 6 Federal government 5 Nationalism 5 Political aspects 5 Art, Austrian 4 Political activity 3 Political culture 3 Political parties 3 Race relations 3 Sovereignty 3 Cotton trade 2 Economic conditions 2 Election 2 English-French relations 2 Foreign economic relations 2 Gettysburg, Battle of, Gettysburg, Pa., 1863 2 Government, Resistance to 2 Intellectual life 2 Journalists 2 Presidents 2 Reconstruction (U.S. history, 1865-1877) 2 Soldiers 2 less ...