HISTORY History 7,181 Histoire 6,534 General 4,927 State & Local 2,984 Politics and government 2,214 Politique et gouvernement 2,052 Military 1,938 POLITICAL SCIENCE 1,545 BIOGRAPHY & AUTOBIOGRAPHY 1,431 Foreign relations 1,341 Diplomatic relations 1,305 SOCIAL SCIENCE 1,116 Relations extérieures 1,073 Historical 1,026 Social aspects 963 TECHNOLOGY & ENGINEERING 927 Social conditions 908 Aspect social 860 Military Science 829 Civil War Period (1850-1877) 814 Conditions sociales 777 Other 766 Political aspects 674 Armed Forces 672 Presidents 593 World War, 1939-1945 551 Campaigns 526 Race relations 520 Military campaigns 519