Boston Marathon Bombing (2013)
Cultural Revolution Turmoil (1966-1976)
Great Patriotic War Losses (WWII)
Toronto Van Attack (2018)
Slum Violence and Shootouts
Sydney Siege (2014)
COVID-19 Second Wave Crisis (2021)
Plaza de Mayo Massacre (1955)
Karachaganak Oil Field Explosion
Oil Rig Explosions and Fires