Hiroshima 1945

I didn't see this in the news anywhere today but, this is the day in 1945 the U.S. dropped the first atomic bomb on the city of Hiroshima, Japan. Nazi Germany and Japan both had their own atomic programs under way but the U.S was the first to use it. Called "Little Boy" it was an approx. 13 to 18 kt explosion vaporizing 50,000 people instantly and killing over 130,000.
Robert Oppenheimer who designed it was horrified by the results and became a life long pacifist.