World War, 1939-1945 History 29 Politics and government 17 Social life and customs 12 Public opinion 9 Social conditions 9 Causes 8 Economic aspects 8 Foreign relations 7 Mass society 7 Social history 7 Social surveys 7 Working class 7 Diplomatic history 6 Economic conditions 6 World War, 1914-1918 4 Economic policy 3 English diaries 3 Holocaust, Jewish (1939-1945) 3 Social aspects 3 Atrocities 2 Catholic Church 2 Conscript labor 2 Industrial productivity 2 Influence 2 National socialism 2 Politics 2 Religious aspects 2 Underground movements 2 War work 2