History 47,218 Politics and government 20,250 Foreign relations 14,663 Histoire 14,316 African Americans 9,140 Presidents 7,863 Race relations 7,360 more ... Politique et gouvernement 6,892 Social conditions 6,480 Diplomatic relations 6,198 Civilization 5,024 International relations 4,641 Relations extérieures 3,842 Slavery 3,580 Campaigns 3,516 Social life and customs 3,481 Description and travel 3,205 Civil rights 3,052 Indians of North America 2,946 Relations raciales 2,743 Noirs américains 2,668 Regimental histories 2,491 Relations 2,311 Generals 2,258 Legislators 2,196 Biography 2,171 Conditions sociales 2,106 Social aspects 2,041 Political aspects 1,981 Racism 1,912 less ...