History 252 African Americans 73 Politics and government 71 Race relations 54 Social conditions 31 Civil rights 18 Slavery 17 更多 ... Enslaved persons 16 Reconstruction (U.S. history, 1865-1877) 16 Social aspects 16 Racism 15 Social life and customs 14 Economic conditions 13 Political aspects 12 African American women 11 Legislators 11 Description and travel 9 Indians of North America 9 Manners and customs 9 Soldiers 9 Political activity 8 Political culture 8 Biography 7 Plantation life 7 Women 7 Campaigns 6 Civil rights movements 6 Civil rights workers 6 Governors 6 History, Military 6 少 ...