Politics and government -- 12 History -- 6 Constitutional law 5 Socialism -- 5 Economic conditions -- 4 Foreign relations -- 4 History 4 more ... Politics and government 4 Social conditions -- 4 Economic conditions 3 Foreign economic relations 3 Agriculture -- 2 Associations, institutions, etc -- 2 Biography -- 2 Cultural policy 2 Economic policy 2 Economic policy -- 2 Europe, Eastern 2 Labor unions -- 2 Non-governmental organizations -- 2 Businessmen -- 1 Caste -- 1 Central planning -- 1 Commercial policy 1 Communism -- 1 Communism and international relations 1 Communism and society 1 Communist countries -- 1 Conflict -- 1 Congresses 1 less ...