When US dropped atomic bomb on Hiroshima 75 years ago

On this day 75 years ago, the US had dropped the first of its two atomic bombs on Japanese cities — the first, in Hiroshima, killed more than 70,000 people instantly. A second bomb, which was dropped three days later over Nagasaki, killed 40,000 more. The nuclear warfare put paid to the World War II and a devastating chapter in world history. Watch video to know more