History 18,420 Politics and government 4,868 Description and travel 4,546 Social life and customs 3,085 Histoire 3,047 Social conditions 2,783 Race relations 1,502 more ... Antiquities 1,456 Frontier and pioneer life 1,428 African Americans 1,343 Travel 1,343 Civilization 1,284 Economic conditions 1,281 Foreign relations 1,264 Indians of North America 977 Politique et gouvernement 971 Descriptions et voyages 876 Indians of South America 812 Ethnic relations 735 Indians of Mexico 728 Manners and customs 713 Discovery and exploration 642 Mayas 629 Relations 595 Social aspects 537 Jews 479 Mœurs et coutumes 454 Religion 443 Sources 443 Colonies 440 less ...