History 251 Historical geography 179 Maps 125 Cartography 74 Description and travel 73 Economic conditions 67 Geology 50 Geography 38 Social conditions 35 Discovery and exploration 24 Population 23 Early maps 22 Discoveries in geography 21 Antiquities 20 Administrative and political divisions 17 Geography, Ancient 17 Civilization 15 Geography, Medieval 15 World War, 1939-1945 15 Geographical distribution 14 Church history 13 Cities and towns 13 Ecclesiastical geography 13 Physical geography 13 Atlases 12 Classical geography 12 Facsimiles 12 Politics and government 12 Jews 11 Economic geography 10 World politics 10 Ethnology 9 Human geography 9 Campaigns 8 Indians of North America 8 Travel 8 Climatic changes 7 Dialects 7 Early works to 1800 7 History, Ancient 7 Names, Geographical 7 Agriculture 6 Boundaries 6 City planning 6 Economic history 6 Election districts 6 Galaxies 6 Geology, Stratigraphic 6 Natural resources 6 Phytogeography 6 Women 6 Womyn 6 Atlases, British 5 Coasts 5 Effect of human beings on 5 English language 5 Geology, Structural 5 Groundwater 5 Human beings 5 Languages 5 Nature 5 Nautical charts 5 Political aspects 5 Research 5 Roads 5 Social life and customs 5 Surveying 5 Voyages and travels 5 Water-supply 5 World War, 1914-1918 5 AIDS (Disease) 4 Aerial photography 4 Arab-Israeli conflict 4 Archaeology 4 Bibliography 4 Birds 4 Botany 4 Buildings, structures, etc 4 Climate 4 Climatology 4 Colonies 4 Dicotyledons 4 Ecology 4 Emigration and immigration 4 Explorers 4 Human ecology 4 Islamic civilization 4 Land use 4 Linguistic geography 4 Manuscripts, Nahuatl 4 Medical geography 4 Mines and mineral resources 4 Poverty 4 Real property 4 Religions 4 Social aspects 4 Sources 4 Antiquities, Roman 3 Arabic language 3 Art 3