1943=00,001 dating Nuclear Fission at Oak Ridge, Meitner & Hahn Burke's Connections 2:2

James Burke's Connections 2 :2 , Oak Ridge  fission plant ? #2 after Fermi's at Chicago? Making plutonium?

Compton's schedule called for determining the feasibility of a nuclear chain reaction by July 1942, achieving the first self-sustaining chain reaction by January 1943, extracting the first plutonium from irradiated uranium-238 by January 1944, and producing the first atomic bomb by January 1945. In the end, all these deadlines were met except the last, which occurred six months later than planned.