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).
Manhattan Project, the U.S. effort in World War II that developed the atomic bomb. The possibility of developing an atomic bomb became evident late in 1938 when scientists in Germany successfully split a uranium atom by bombarding it with neutrons.eginning in June 1942 during World War II, the United States' Manhattan Project brought together scientists and military experts to create the world's first atomic bomb.