The first atomic bomb was dropped in Hiroshima, but there are just way more things about the bomb other than it's location. First, the bomb was dropped by USA to Japan in order to stop the WWII. The WWII first started as the ruler of Germany Hitler invaded Poland and France and Britain declared war with Germany. When later Germany surrendered, Japan still stands and keep fighting with the Allies. When the time comes when USA made their atomic bomb, the new president gave Japan last chance to surrender, otherwise they will drop the bomb, but Japan want to fight to the end, they even planned to call for every citizen of their country to fight to their death. But when two bombs hit, Japan surrenders and many survivors claim that the experience is terrible, and no one want a nuclear war ever again.