Imperial Tragedy Author:Thomas M. Coffey December 7, 1941, Pearl Harbor, to August 6, 1945, Hiroshima. A brillaintly detailed report - hour by hour and person to person - of those cataclysmic days whe Japanese forces attacked Pearl Harbor, and four years later, when American planse dropped the atomic bomb on Hiroshima. Note from the Poster: this really is an excellent history.