History 122 Description and travel 29 Germans 26 Mexican Americans 21 Social life and customs 19 Travel 19 Annexation to the United States 18 more ... History, Local 17 Slavery 17 German Americans 16 Politics and government 16 African Americans 13 Biography 13 Emigration and immigration 12 Indians of North America 12 Mexicans 12 Frontier and pioneer life 9 Histoire 9 Annexation 8 Social conditions 8 Economic conditions 7 Ethnic relations 7 Extension to the territories 7 Genealogy 7 Ethnic groups 6 Manners and customs 6 Race relations 6 Comanche Indians 5 Education 5 Employment 5 Family 5 Immigrants 5 Agriculture 4 Church history 4 Cooking 4 Enslaved persons 4 Folklore 4 Fraternal organizations 4 French 4 Indian captivities 4 less ...