History 17,180 Politics and government 4,529 Description and travel 4,301 Histoire 2,991 Social life and customs 2,957 Social conditions 2,652 Race relations 1,450 more ... Frontier and pioneer life 1,404 Antiquities 1,351 African Americans 1,298 Travel 1,291 Economic conditions 1,224 Foreign relations 1,192 Civilization 1,131 Politique et gouvernement 963 Indians of North America 937 Descriptions et voyages 860 Ethnic relations 721 Indians of South America 715 Manners and customs 678 Indians of Mexico 649 Discovery and exploration 596 Mayas 588 Relations 560 Social aspects 512 Jews 463 Mœurs et coutumes 449 Conditions sociales 409 Religion 409 Sources 401 less ...