History Politics and government 5,523 Histoire 3,978 Social conditions 2,210 Social life and customs 1,853 Race relations 1,221 Indians of South America 1,102 more ... Civilization 1,015 Description and travel 992 Economic conditions 980 Manners and customs 781 African Americans 780 Foreign relations 768 Immigrants 730 Ethnic relations 718 Emigration and immigration 714 Antiquities 694 Frontier and pioneer life 630 Politique et gouvernement 629 Historiography 600 Relations 568 Colonies 563 Indians of Mexico 541 Social aspects 526 Government relations 495 Political activity 492 Intellectual life 483 Guerrillas 473 Revolutionaries 437 Sources 437 less ...