Enrico Fermi, 1942
1942
The first to create the first nuclear chain reaction was Enrico Fermi. Refer to link below for details.
The first chain reaction was achieved in Chicago 1942, under Enrico Fermi
Chicago, 1942
The first chain reaction was demonstrated in the Chicago 'pile', in 1942.
Enrico Fermi, 1942
It's a general term used to apply to the time following the advent of nuclear technology. It could have begun when the first controlled nuclear chain reaction took place, or when the first nuclear bomb was detonated. That was in the 1940's.
the first sustained and controlled nuclear chain reaction by Enrico Fermi in 1942
This was first discovered during the WW2 Manhattan Project to develop the A-bomb. The first reactor chain reaction was produced in 1942 in Chicago.
pokhran..in 1974
United States
CP-1 in Chicago in 1942 was first operating nuclear reactor. no effect except confirmation that chain reaction worked and could be controlled.