The Great Depression (1929)
Yangtze River Floods (1931)
Kursk Submarine Disaster (2000)
Alberta Wildfires (2016)
2014 FIFA World Cup Violence
Port Arthur Massacre (1996)
Bhopal Gas Tragedy (1984)
Economic Crisis and Unemployment (2001)
Aral Sea Environmental Disaster
1988 October Riots and Crackdown