History 222 Description and travel 111 Travel 62 Chinese 57 Social conditions 57 Politics and government 56 Japanese Americans 53 more ... Gold discoveries 50 Chinese Americans 43 Ethnic groups 43 Emigration and immigration 41 Biography 39 Japanese 37 Social life and customs 36 Indians of North America 35 Societies, etc 32 Gold mines and mining 30 Periodicals 30 Economic conditions 28 Italian Americans 28 Mexican Americans 27 Slavery 27 African Americans 25 Germans 24 Religious life 24 Churches 22 History, Local 21 Italians 20 Race relations 20 Extension to the territories 19 Armenian Americans 18 Education 18 Jews 18 Compromise of 1850 17 Russians 17 French 16 Histoire 16 Minorities 16 Asian Americans 15 Descriptions et voyages 15 less ...