History of Nuclear Energy. By Alexispegues Jan 1, 1934 Nuclear fission is first experimentally achieved. Nuclear fission is first experimentally achieved. Feb 4, 1938 Experiments with neutron bombarded uranium. Experiments with neutron bombarded uranium. Dec 2, 1942 First man made reactors. First man made reactors. Dec 4, 1945 Forced the Japanese to surrender in world war 2, using atomic bombs. Feb 4, 1946 First nuclear-reactor-produced radioisotopes for peacetime civilian use. Feb 4, 1946 The U.S congress passes the Atomic energy Act. Dec 20, 1951 Generation of electricity by nuclear reactor. Aug 1, 1952 A report by paley commission for harry Truman. Jun 27, 1954 worlds first nuclear power plant. Dec 4, 1954 Worlds first nuclear powered submarine is put in the sea. Feb 4, 1955 Enrico Fermi and Leo Szilard share a patent Feb 4, 1957 Launch of the International Atomic Energy Agency Feb 4, 1960 A rise in installed nuclear capacity.