History 17,198 Politics and government 4,536 Description and travel 4,308 Histoire 2,990 Social life and customs 2,962 Social conditions 2,657 Race relations 1,451 more ... Frontier and pioneer life 1,405 Antiquities 1,352 African Americans 1,299 Travel 1,290 Economic conditions 1,226 Foreign relations 1,192 Civilization 1,131 Politique et gouvernement 962 Indians of North America 938 Descriptions et voyages 859 Ethnic relations 724 Indians of South America 715 Manners and customs 678 Indians of Mexico 648 Discovery and exploration 597 Mayas 589 Relations 562 Social aspects 516 Jews 465 Mœurs et coutumes 449 Religion 411 Conditions sociales 409 Sources 400 less ...