Challenger Space Shuttle Disaster (1986)
Tangshan Earthquake (1976)
Great Patriotic War Losses (WWII)
Great Depression Effects in Canada
Carandiru Prison Massacre (1992)
Adelaide Hills Bushfires (2015)
Bhopal Gas Tragedy (1984)
Plaza de Mayo Massacre (1955)
Train Derailment Disaster
2003 Boumerdès Earthquake