Oak Ridge in WW2 History | World War II Database

23 Sep 1942

United States

Leslie Groves was promoted to the rank of brigadier general. On the same day, he toured the future Oak Ridge site of the Manhattan Project in Tennessee, United States and expressed his satisfaction for this site being used for a future production site. ww2dbase [Clinton Engineer Works | Leslie Groves | Oak Ridge, Tennessee | CPC]

24 Sep 1942

United States

Leslie Groves purchased 210 square kilometers (52,000 acres) of land in Tennessee, United States. Also known as Site X, it would soon become the Oak Ridge site of the Manhattan Project. ww2dbase [Operation Trinity and Manhattan Project | Clinton Engineer Works | Oak Ridge, Tennessee | CPC]

18 Feb 1943

United States

The construction for a large electromagnetic separation plant for enriching uranium, codenamed Y-12, began construction at Manhattan Project's Oak Ridge site in Tennessee, United States. ww2dbase [Clinton Engineer Works | Operation Trinity and Manhattan Project | Oak Ridge, Tennessee | CPC]

1 Apr 1943

United States

Access to the Clinton Engineer Works facilities in Tennessee, United States became strictly controlled. ww2dbase [Operation Trinity and Manhattan Project | Clinton Engineer Works | Oak Ridge, Tennessee | CPC]

17 Oct 1943

United States

The civilian Roane-Anderson Company, a subsidiary of the Turner Construction Company, took over the responsibility of administering the community in Tennessee, United States in which the workers at Site X of the Manhattan Project resided. ww2dbase [Clinton Engineer Works | Oak Ridge, Tennessee | CPC]

1 Jul 1945

United States

The civilian Monsanto company took over the operation of the Clinton Laboratories at Site X of the Manhattan Project in Tennessee, United States. ww2dbase [Operation Trinity and Manhattan Project | Clinton Engineer Works | Oak Ridge, Tennessee | CPC]

25 Jul 1945

United States

The final wartime shipment of uranium-235 left the Clinton Engineer Works in Tennessee, United States, reaching Tinian, Mariana Islands by C-54 transport aircraft 3 and 4 days later. This specific shipment of uranium-235 was used for the Little Boy bomb destined for Hiroshima, Japan. ww2dbase [Clinton Engineer Works | Atomic Bombing of Hiroshima and Nagasaki | Oak Ridge, Tennessee | CPC]

1 Mar 1946

United States

Private medical practices were allowed at Site X of the Manhattan Project in Tennessee, United States. ww2dbase [Operation Trinity and Manhattan Project | Clinton Engineer Works | Oak Ridge, Tennessee | CPC]

10 Sep 1946

United States

Union Carbide, the civilian firm charged with the running of plants K-25, Y-12, and X-10 at Site X of the Manhattan Project in Tennessee, United States, signed a contract with the union United Chemical Workers. ww2dbase [Operation Trinity and Manhattan Project | Clinton Engineer Works | Oak Ridge, Tennessee | CPC]

18 Dec 1946

United States

Monsanto, the civilian firm charged with the running of the Clinton Laboratories at Site X of the Manhattan Project in Tennessee, United States, signed a contract with the union Atomic Trades and Labor Council. ww2dbase [Operation Trinity and Manhattan Project | Clinton Engineer Works | Oak Ridge, Tennessee | CPC]

1 Mar 1949

United States

The military hospital at the Oak Ridge site of the Manhattan Project in Tennessee, United States was transferred to civilian control by the Roanne-Anderson Company, a subsidiary of the Turner Construction Company. ww2dbase [Operation Trinity and Manhattan Project | Clinton Engineer Works | Oak Ridge, Tennessee | CPC]

19 Mar 1949

United States

The residential and commercial sections of Oak Ridge, Tennessee, United States were opened to public access for the first time. ww2dbase [Operation Trinity and Manhattan Project | Clinton Engineer Works | Oak Ridge, Tennessee | CPC]

27 Jul 2011

Photo(s) dated 27 Jul 2011