The correct answer is the Manhattan Project.
Enrico Fermi’s work changed the outcome of World War II and also marked the beginning of a new age of technology in the world.
Enrico Fermi (1901-1954) was a renown Italian scientist that worked on the Manhattan Project that created the atomic bomb. He was an expert in nuclear physics and quantum mechanics. After accepting the Noble Prize in 1939 for his work with fission, Fermi traveled to New York to work in the Columbia University to work as a Professor of Physics and participated in the first fission experiment in the United States. With the support of the National Defense Research Committee, Fermi researched nuclear chain reaction. Then he moved to the University of Chicago and in 1944 Robert Oppenheimer hired him to the Manhattan Project in Los Alamos.