History 67.723 Politics and government 19.165 Foreign relations 13.801 Histoire 12.649 Social conditions 9.298 Law and legislation 9.184 History and criticism 7.041 mehr ... Social aspects 7.008 African Americans 6.885 World War, 1939-1945 5.907 Presidents 5.880 Publications by Graduates 5.775 Education 5.716 Race relations 5.348 Economic conditions 5.183 Women 4.745 Politique et gouvernement 4.474 Government policy 4.140 Political aspects 4.140 Social life and customs 4.076 Campaigns 4.030 Publications about Graduates 3.767 Civilization 3.698 Civil rights 3.350 Diplomatic relations 3.281 Regimental histories 3.218 Relations extérieures 3.082 Economic aspects 3.039 Armed Forces 3.007 Biography 2.984 weniger ...