History 89.455 Politics and government 31.696 Indians of North America 24.797 African Americans 22.965 Histoire 22.352 Foreign relations 18.097 Social conditions 12.502 mehr ... Race relations 11.920 Slavery 10.628 Presidents 10.489 Antiquities 9.245 Social life and customs 8.979 Politique et gouvernement 8.687 Diplomatic relations 6.745 Civilization 6.543 HISTORY 6.425 Description and travel 6.220 Civil rights 5.921 International relations 5.734 Noirs américains 5.371 Campaigns 5.185 General 5.128 Relations extérieures 4.750 Discovery and exploration 4.299 Government relations 4.179 Regimental histories 3.966 Biography 3.935 Economic conditions 3.925 Relations raciales 3.856 Religion 3.677 weniger ...