Boston Marathon Bombing (2013)
Great Chinese Famine (1959-1961)
Great Patriotic War Losses (WWII)
Great Depression Effects in Canada
Vargas Tragedy Landslide (1955)
Port Arthur Massacre (1996)
Bhopal Gas Tragedy (1984)
Plaza de Mayo Massacre (1955)
Semipalatinsk Nuclear Testing Impact
Algerian War of Independence Casualties