Challenger Space Shuttle Disaster (1986)
Tiananmen Square Massacre (1989)
Vladimir Lenin's Death and Aftermath (1924)
The Halifax Explosion (1917)
Carandiru Prison Massacre (1992)
Port Arthur Massacre (1996)
Coal Mine Explosions and Accidents
San Juan Earthquake (1944)
Aral Sea Environmental Disaster
Algerian Civil War Casualties (1991-2002)