The history of nuclear energy is a story of a centuries-old dream becoming a reality. The science of atomic radiation, atomic change, and nuclear fission was developed from 1895 to 1945, much of it in the last six years. Over 1939-45, most development was focused on the atomic bomb. From 1945 attention was given to harnessing this energy in a controlled fashion for naval propulsion and for making electricity. Since 1956 the prime focus has been on the technological evolution of reliable nuclear power plants. Below are several documents on nuclear energy’s development into a globally prominent energy source.