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HISTORY 1,041 POLITICS AND GOVERNMENT 634 FOREIGN RELATIONS 545 ECONOMIC CONDITIONS 292 HISTORIA 221 SOCIAL CONDITIONS 193 PRESIDENTS 169 FEATURE FILMS 167 ECONOMIC POLICY 160 STATE, THE 148 EDUCATION 137 SOCIAL ASPECTS 129 ECONOMIC ASPECTS 123 POLITICAL ASPECTS 115 EDUCATION AND STATE 113 Física 111 LAW AND LEGISLATION 110 MANAGEMENT 110 DEMOCRACY 103 SOLID STATE PHYSICS 100 CONSTITUTIONAL LAW 98 WORLD POLITICS 98 POLITICAL SCIENCE 92 RELATIONS 91 MILITARY POLICY 87 PHILOSOPHY 86 GOVERNMENT POLICY 83 FINANCE 81 CIVILIZATION 76 CIVIL RIGHTS 69