History 50 Politics and government 20 World War, 1939-1945 18 Assassination 12 Death and burial 9 Description and travel 7 Foreign relations 6 International relations 6 Accidents 5 Airplanes 5 Murder 5 Nuclear warfare 5 Social conditions 5 Terrorism 5 Airplanes, Military 4 Atomic bomb 4 Criminal investigation 4 Economic conditions 4 Industrial design 4 Military weapons 4 Space vehicles 4 Strategy 4 War crimes 4 Apartheid 3 Chernobyl Nuclear Accident, Chornobylʹ, Ukraine, 1986 3 Christian pilgrims and pilgrimages 3 Concorde (Jet transports) 3 Cuban Missile Crisis, 1962 3 Disasters 3 Explosions 3