India, July 8 -- Its been over seven decades when the United States of America dropped the first atomic bomb on Hiroshima on August 6, 1945. It killed around 1,40,000 people by the end of the year, out of the 3,50,000 who lived in the city.

Three days later, a second atomic bomb was dropped on Nagasaki, which had the same devastating effect on the lives of people. The world has not forgotten this event even after more than 70 years, for the blast had not only killed thousands of people but marked a watershed in the human history. It had launched the world into the era of nuclear weapons.

For the first time, the world had weapons which has the capacity to annihilate the human species. Heads of some nations, therefore, marked this occasio...