History 34,969 Politics and government 5,894 Genealogy 4,701 African Americans 4,476 Description and travel 4,236 Biography 4,072 Church records and registers 3,845 more ... Periodicals 3,271 Sources 3,037 Societies, etc 2,841 Jews 2,683 Census records 2,597 Deeds 2,530 Slavery 2,417 Indians of North America 2,338 Streets 2,215 Social life and customs 2,210 Registers of births, etc 2,048 Social conditions 1,946 Bibliography 1,871 Emigration and immigration 1,794 Education 1,720 Churches 1,659 Probate records 1,586 Almanacs, American 1,529 Church history 1,418 Fiction 1,288 Religious life 1,242 Railroads 1,238 Economic conditions 1,235 Clergy 1,205 Ethnic groups 1,102 Race relations 1,094 Lutheran 1,084 Vital records 1,062 Women 1,058 Germans 1,049 Foreign relations 1,030 Presidents 1,009 Study and teaching 1,008 less ...