History 510 Politics and government 396 Slavery 119 African Americans 65 Histoire 59 Politique et gouvernement 58 Foreign relations 56 more ... Sermons, American 54 Republican 49 Revolution 49 Causes 48 Bibliography 47 Colonies 45 American 37 Indians of North America 37 Commerce 34 Railroads 34 Finance 32 Description and travel 30 Genealogy 30 Jews 29 Sermons 28 Diplomatic relations 27 Yellow fever 27 Relations extérieures 24 Campaign literature 23 Economic conditions 23 Education 23 Emigration and immigration 22 Sermons américains 22 Sources 22 Communism 21 Presidents 21 Slave trade 21 World War, 1939-1945 21 Controversial literature 20 Tariff 20 American literature 19 Religious aspects 19 Societies, etc 19 less ...