It started WWII and a start to a deadly war revolution.
President Truman.
1945
See atomic bombings of Hiroshima and Nagasaki
The mayor event was the dropping of the atomic bomb over Hiroshima.
It ended the war.
Hiroshima then Nagasaki .
See: Atomic bombings of Hiroshima and Nagasaki
The atomic bomb was dropped on Hiroshima and Nagasaki in World War 2.
See website: Atomic bombings of Hiroshima and Nagasaki
It ended the war with less possible servicemembers lives lost.
Dropping of the atomic bombs on Hiroshima and Nagasaki.
The dropping of two atomic bombs on Hiroshima and Nagasaki.