History 38,370 Politics and government 6,441 Description and travel 4,873 African Americans 4,712 Genealogy 4,090 Church records and registers 3,882 Societies, etc 3,250 more ... Sources 3,061 Biography 2,996 Periodicals 2,950 Jews 2,767 Indians of North America 2,730 Census records 2,579 Social life and customs 2,563 Deeds 2,538 Slavery 2,477 Histoire 2,375 Streets 2,220 Social conditions 2,186 Registers of births, etc 2,180 Emigration and immigration 2,152 Almanacs, American 1,902 Education 1,899 Bibliography 1,680 Churches 1,674 Church history 1,599 Probate records 1,590 Religious life 1,410 Economic conditions 1,373 Germans 1,307 Clergy 1,296 Railroads 1,279 Travel 1,261 German Americans 1,256 Ethnic groups 1,222 Race relations 1,222 Women 1,158 Families 1,154 Foreign relations 1,127 Study and teaching 1,120 less ...