History Biography 21 Chinese Americans 18 History, Local 17 Histoire 13 Chinese 12 Description and travel 12 more ... Emigration and immigration 12 Ethnic groups 11 Japanese Americans 10 Extension to the territories 9 French 9 Russians 9 Slavery 9 Sources 9 Gold discoveries 8 Race relations 8 Social conditions 8 Social life and customs 8 Japanese 7 Politics and government 7 African Americans 6 Jews 6 Missions 6 Bibliography 5 Frontier and pioneer life 5 Germans 5 Gold mines and mining 5 Italian Americans 5 Labor and laboring classes 5 Travel 5 Economic conditions 4 Indians of North America 4 Italians 4 Labor unions 4 Law and legislation 4 Mexican Americans 4 Minorities 4 Personal narratives 4 Swiss 4 less ...