History 514 Description and travel 254 Indians of North America 119 Slavery 100 Church records and registers 90 Genealogy 88 Frontier and pioneer life 87 more ... Travel 71 Sources 64 Slave trade 49 Deeds 47 Commerce 38 Descriptions et voyages 38 Registers of births, etc 38 Colonies 36 Social life and customs 36 African Americans 34 Enslaved persons 34 Histoire 34 Periodicals 33 Gravestone inscriptions 32 Discovery and exploration 31 Emancipation 31 Lutheran 31 Politics and government 31 Missions 28 Biography 27 Episcopal 26 Jews 26 Emigration and immigration 25 Railroads 25 Social conditions 25 Wars 24 Economic conditions 23 Archives 22 Overland journeys to the Pacific 22 Reformed Church 21 Vital records 21 Antislavery movements 20 Bibliography 20 less ...