Hiroshima: August 6 1945
(http://www.city.hiroshima.jp/kikaku/joho/toukei/History-E/05.html)
Nagasaki: August 9 1945
(http://www.csi.ad.jp/suzuhari-es/1000cranes/nagasaki/index.html)
As far as I have been able to find, there was no prior warning.
----
Some extracts from an interview with Leo Szilard, one of the developers of
the A-Bomb.
From: http://www.peak.org/~danneng/decision/usnews.html
Q Would a demonstration have been feasible?
A It is easy to see, at least in retrospect, how an effective demonstration
could have been staged. We could have communicated with Japan through
regular diplomatic channels - say, through Switzerland - and explained to
the Japanese that we didn't want to kill anybody, and therefore proposed
that one city - say, Hiroshima - be evacuated. Then one single bomber would
come and drop one single bomb.
-- Dr. Leo Szilard, 62, is a Hungarian-born physicist who helped persuade
President Roosevelt to launch the A-bomb project and who had a major share
in it. In 1945, however, he was a key figure among the scientists opposing
use of the bomb. Later he turned to biophysics, and this year was awarded
the Einstein medal for "outstanding achievement in natural sciences." --
----
The Truman Speech, August 9, 1945
From: http://www.dannen.com/decision/hst-ag09.html
In a radio speech to the nation on August 9, 1945, President Truman called
Hiroshima "a military base." It seems likely, considering his July 25 diary
entry, that he was not aware that Hiroshima was a city. Otherwise, he was
being untruthful about the nature of the target.
"The world will note that the first atomic bomb was dropped on Hiroshima, a
military base. That was because we wished in this first attack to avoid,
insofar as possible, the killing of civilians. But that attack is only a
warning of things to come. If Japan does not surrender, bombs will have to
be dropped on her war industries and, unfortunately, thousands of civilian
lives will be lost. I urge Japanese civilians to leave industrial cities
immediately, and save themselves from destruction."
Truman delivered his speech from the White House at 10 P.M. Washington time
on August 9, 1945. By this time, a second atomic bomb already had destroyed
the city of Nagasaki. Because of the great length of the speech, most of
which dealt with Germany, only the relevant paragraph is quoted here.
----
I found the above and some other interesting information here:
http://www.dannen.com/decision/
- Robert
> I am almost positive I remember that we detonated a much smaller device on
> some island and somehow tried to tell the Japanese that we would do this.
I
> will have to read up on that....
> > > Ah, no. I think we cheered when they surrendered. And also, the
> bombing
> > of
> > > Hiroshima and Nagasaki saved a ton of lives on both sides if we had to
> > > invade Japan. Don't forget, the US showed Japan on a remote island
the
> > Nuke
> > > before this happened, and they would not surrender.
> > That's news to me. As far as I know, we only detonated a test bomb in
New
> > Mexico. I was unaware that the Japanese ever had any kind of first hand
> > demonstration, before Hiroshima. Of course after Hiroshima they didn't
> > surrender. After Nagasaki, there was an attempted palace coup by those
> who
> > did not want to surrender. So I don't agree with your details, but it's
> > clear the Japanese didn't want to surrender.
> > > This is a whole different thing, apples and oranges.
> > It's about as unprovoked an attack as you're going to get when a
> superpower
> > regularly interferes in the affairs of other nations. In world affairs
we
> > don't sit around peacefully harvesting flowers, but we also don't
inflict
> > (likely) 10,000 civilian deaths in an urban center. I don't remember
even
> > the Kosovo bombings, which I was opposed to, having anywhere near that
> kind
> > of body count.
> > --
> > Cheers, www.3DProgrammer.com
> > Brandon Van Every Seattle, WA
> > People who make personal attacks are useless.
> > I killfile them no matter who they are insulting.