History 4,890 World War, 1939-1945 1,842 Politics and government 1,397 Jews 703 Foreign relations 686 Polish people 557 Relations 429 more ... Biography 415 Underground movements 413 Description and travel 409 Ethnic relations 376 Holocaust, Jewish (1939-1945) 375 Intellectual life 330 Civilization 321 Personal narratives, Polish 255 Campaigns 226 Social life and customs 214 Sources 182 Atrocities 175 Historiography 166 History, Military 165 World War, 1914-1918 164 Social conditions 157 Statesmen 139 Generals 125 Politicians 120 Regimental histories 107 Polish Primary Sources 103 Prisoners and prisons, German 98 Persecutions 92 less ...