History 18,063 Politics and government 4,781 Description and travel 4,466 Histoire 3,021 Social life and customs 3,011 Social conditions 2,708 Race relations 1,446 more ... Antiquities 1,437 Frontier and pioneer life 1,414 Travel 1,303 African Americans 1,294 Civilization 1,258 Economic conditions 1,253 Foreign relations 1,248 Politique et gouvernement 970 Indians of North America 962 Descriptions et voyages 865 Indians of South America 790 Ethnic relations 725 Indians of Mexico 717 Manners and customs 679 Discovery and exploration 632 Mayas 609 Relations 590 Social aspects 515 Jews 474 Mœurs et coutumes 451 Religion 435 Colonies 431 Sources 430 less ...