History 253 Social conditions 64 Motion picture industry 62 Social aspects 53 Motion pictures 50 Race relations 42 Law and legislation 40 more ... Politics and government 40 Emigration and immigration 34 Government policy 31 Immigrants 27 Political aspects 25 African Americans 21 Japanese Americans 20 Legal status, laws, etc 20 Social life and customs 19 Ethnic identity 18 Civil rights 17 Economic conditions 17 Ethnic relations 17 Noncitizens 17 Chinese Americans 14 History and criticism 14 Manners and customs 14 Mexican Americans 14 Economic aspects 13 Indians of North America 13 Trials, litigation, etc 13 Civil rights movements 12 Environmental policy 12 less ...