History 664 World War, 1939-1945 549 Holocaust, Jewish (1939-1945) 255 Jews 166 World War, 1914-1918 119 Vietnam War, 1961-1975 114 Campaigns 87 more ... Ethnic relations 72 Soldiers 65 Persecutions 62 Politics and government 54 Holocaust survivors 48 Women 45 Underground movements 38 Prisoners and prisons, German 36 Social conditions 36 Social life and customs 35 Description and travel 34 Biography 32 Childhood and youth 31 Womyn 30 Atrocities 29 Manners and customs 29 Regimental histories 29 History and criticism 26 Medical care 26 Children 24 Prisoners of war 24 Jewish children in the Holocaust 23 Refugees 22 less ...