History 26 Politics and government 5 Civilization 4 Description and travel 4 Presidents 4 World history 4 Asiatisch-pazifischer Raum 3 Economic aspects 3 History, Military 3 Prime ministers 3 World War, 1939-1945 3 Biography 2 Campaigns 2 Choice (Psychology) 2 City planning 2 Civil rights 2 Discovery and exploration 2 Fugitives from justice 2 HISTORY / Civilization 2 HISTORY / World 2 Health and hygiene 2 Imperialism 2 Indians of North America 2 Industrie 2 Race relations 2 Social conditions 2 Social life and customs 2 Study and teaching 2 Transportation 2 War criminals 2