August 6, 1945★★★★★
Atomic bombing of Hiroshima
The United States drops the first atomic bomb used in war on Hiroshima, killing tens of thousands instantly.
WarDisaster· Japan, United States
Timeline
4 events20th century
- 1962 – 1971★★★★★
Operation Ranch Hand
The US Air Force sprays herbicides, including dioxin-contaminated Agent Orange, over large areas of South Vietnam, with lasting health and environmental effects.
WarDisaster· Vietnam, United States
21st century
- September 11, 2001★★★★★
September 11 attacks
Al-Qaeda hijackers attack New York and Washington with four airliners, killing nearly 3,000 people.
DisasterPolitics· United States - August 29, 2005★★★★★
Hurricane Katrina devastates New Orleans
Hurricane Katrina strikes the US Gulf Coast, breaching New Orleans' levees and killing more than 1,300 people.
Disaster· United States