History 290 Social life and customs 64 Manners and customs 56 Politics and government 50 African Americans 42 Race relations 27 Social conditions 26 更多 ... Slavery 22 Frontier and pioneer life 20 Mountain life 19 Enslaved persons 17 Intellectual life 15 Authors, American 13 Pioneers 13 Economic conditions 12 Families 12 Social aspects 12 Women 12 History and criticism 11 Antislavery movements 10 History, Military 10 In literature 10 Law 10 Campaigns 9 Generals 9 Governors 9 Soldiers 9 Abolitionists 8 Biography 8 Country life 8 少 ...