M. C. Wiest has been on the payroll for 74 years … just one year shy of the plant’s 75 years of existence.
Greeting a dignitary
All photos in our History section are by Ed Westcott, the government’s official photographer for the Manhattan project.
View highlights by decade since Y‑12's initial planning and wartime mission starting in 1942 through its current missions today. Click a decade below to show its highlights. Click again to hide.
The Manhattan Project web pages are designed to disseminate information and documentation on the Manhattan Project to a broad audience including scholars, students, and the general public.
Located within New Hope Center at Y‑12, the History Center houses a fascinating collection of informational materials and historical artifacts that chronicles Y-12's early missions.
On Feb. 18, 1943, in the midst of World War II, work began on the first production building at Y‑12.