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
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.
Building 9731 was the first building completed at Y-12.