Histoire History 20,887 General 6,965 HISTORY 6,534 SOCIAL SCIENCE 3,382 POLITICAL SCIENCE 3,121 Politics and government 2,305 Politique et gouvernement 2,129 History and criticism 2,022 Social aspects 1,904 State & Local 1,816 Histoire et critique 1,778 LITERARY CRITICISM 1,688 Aspect social 1,683 African Americans 1,633 American 1,565 Social conditions 1,503 BIOGRAPHY & AUTOBIOGRAPHY 1,447 Political aspects 1,407 Race relations 1,407 Relations raciales 1,358 Conditions sociales 1,348 BUSINESS & ECONOMICS 1,275 Noirs américains 1,183 Aspect politique 1,096 Reference 1,072 Foreign relations 1,066 Diplomatic relations 1,043 American literature 917 Relations extérieures 861