Challenger Space Shuttle Disaster (1986)
Yangtze River Floods (1931)
Vladimir Lenin's Death and Aftermath (1924)
The Halifax Explosion (1917)
Rio de Janeiro Floods (2010)
Black Saturday Bushfires (2009)
Partition Violence (1947)
Economic Crisis and Unemployment (2001)
Industrial Pollution Incidents
Oil Rig Explosions and Fires