Social conditions 190 Politics and government 155 African Americans 128 History 113 Race relations 102 Economic conditions 96 Economic policy 35 更多 ... Foreign relations 32 Racism 31 Social aspects 27 Political aspects 23 Race identity 22 Vietnam War, 1961-1975 22 Civil rights 21 Intellectual life 20 International relations 20 Ethnic relations 14 Economic history 13 Social life and customs 13 Influence 12 Political activity 12 Government policy 11 Middle class 11 Nationalism 11 Political prisoners 11 African American women 10 Race discrimination 10 African American families 9 Social change 9 Social classes 9 少 ...