History 20 Jews 6 Politics and government 6 Coal miners 4 Government, Resistance to 4 Libraries 4 Martial law 4 more ... Political activity 4 Strikes and lockouts 4 Ethnic relations 3 Holocaust survivors 3 Holocaust, Jewish (1939-1945) 3 World War, 1939-1945 3 Biography 2 Courts 2 Intellectual life 2 Jewish children in the Holocaust 2 Jewish orphans 2 Jews, Polish 2 Social conditions 2 Academic libraries 1 Anti-communist movements 1 Atrocities 1 Buildings, structures, etc 1 Coal mining 1 Communism and science 1 Cours militaires 1 Courts of special jurisdiction 1 Criminal justice, Administration of 1 Department stores 1 less ...