History 20 Politics and government 16 Jews 8 Social conditions 7 Economic conditions 6 Communism 5 Ethnic relations 5 more ... Foreign relations 4 Social change 4 Hasidism 3 Histoire 3 Judaism 3 Mysticism 3 Post-communism 3 Social ethics 3 World War, 1939-1945 3 Communisme 2 Economic history 2 Economic policy 2 Intellectual life 2 International relations 2 Jewish scholars 2 Land tenure 2 Nationalism 2 Polish question 2 Rabbis 2 Real property 2 Research 2 Right of property 2 89.86 military espionage, military intelligence 1 less ...