Chronology of World War II
Atomic bomb test proves successful
Monday, July 16, 1945 www.onwar.com
In the United Sates... The world's first atomic bomb is exploded at Alamagordo in New Mexico (the Trinity test) at 1730 hours. The steel tower, on which the Plutonium fueled device was mounted, is vaporized by the heat of the explosion (which is greater than the temperature of the inside the of sun). The detonation is visible and audible up to 180 miles away. It is estimated that the blast generated by the explosion is equal to that yielded by between 15,000-20,000 tons of TNT.

In Occupied Germany... The American and British delegations to the Potsdam Conference arrive in Berlin, led by President Truman and Prime Minister Churchill, respectively.

Over Japan... A force of 500 B-29 Superfortress bombers strike targets on Honshu and Kyushu. In total, over 1500 American planes attack raid various objectives on the Japanese home islands during the day.

In China... Japanese units begin pulling out of Amoy, in the south.


This chronological study of the Second World War provides a comprehensive day-by-day account of WWII. While focused on the military history of the war, with an emphasis on the battles and campaigns fought, the timeline includes social and political history as well. Some Holocaust related events are already recorded and additional updates are pending. In so far as possible, the images included in this presentation are pictures from the given days. Additional information and images are welcome through the feedback form found on the index.