President Truman - Handwritten Notes on Atom Bomb "Experiment"

On the 7th of June, 1954, President Harry Truman penned his thoughts regarding the meeting he'd had with his military advisors on the 18th of June, 1945.  His recollected startegy, during the early days of that summer, was as follows:

We were approaching an experiment with the atom explosion.  I was informed that event would take place within a possible thirty days.

I then suggested that after that experimental test of the fission of the atom, that we give Japan a chance to stop the war by a surrender.  That plan was followed.  Japan refused to surrender and the bomb was dropped on two targets after which event the surrender took place.

Credits

Image of Truman's notes, from Harry S. Truman Library and Museum - "Notes Regarding June 18, 1945 Meeting, June 7, 1954.  President's Secretary's File,  Truman Papers."