Social conditions History 10,934 Economic conditions 5,350 Politics and government 4,613 Women 4,046 Social aspects 3,049 Race relations 2,101 更多 ... Social life and customs 1,890 African Americans 1,864 Ethnic relations 1,295 Social change 981 Emigration and immigration 863 Civilization 837 Immigrants 781 Sex role 732 Condiciones sociales 723 Feminism 687 Political aspects 686 Slavery 685 Political activity 635 Jews 585 Ethnic identity 580 Racism 537 Social classes 535 Education 525 Condiciones economicas 514 Government policy 506 Civil rights 504 Intellectual life 502 Employment 490 少 ...