History 379 Social conditions 126 Gold mines and mining 63 Description and travel 62 Politics and government 62 Indians of North America 59 Motion picture industry 57 more ... Social life and customs 57 Gold discoveries 55 Race relations 50 Social aspects 46 Motion pictures 43 Ethnic relations 39 Mexican Americans 39 Manners and customs 38 Chinese Americans 36 Japanese Americans 35 Economic conditions 34 African Americans 32 Immigrants 32 Ethnic identity 27 History and criticism 26 Emigration and immigration 25 Ethnicity 22 Families 21 Frontier and pioneer life 21 Law and legislation 19 Women 19 American literature 18 Chinese 18 less ...