Later on, more liberal government policies were put into place; daimyo and officials were encouraged to take more ronin into their service as samurai. However, this option only could serve a minority of ronin; in an era of peace, few clans needed the large number of samurai that they would need in times of war.
The atomic bomb was not invented by any country, it was  invented in 1933 by Leo Szilard (he was in London at the time, so  when he patented the invention he sold it to the â¦ British Admiralty  who classified it to keep the idea away from the Nazis).
The United States dropped two atomic bombs, the first on Hiroshima and the second on Nagasaki (August 6 and 9, 1945). The results were horendous. Japanese scientists were at the time working on an atmic bomb.This was of course secret and only a small number of officvials and ciebtisdts were aware of the work.he American Manhattan Program was the largest weapons development program in history. It was initiated by President Roosevelt when work done by German physicists led to concern that the NAZIs might build an atomic bomb.