The Manhattan Project was a large-scale, top-secret program of the U.S. federal government created with the specific purpose of developing the world’s first nuclear weapon. Each step of the manufacturing process involved potential exposures to chemical and radiological hazards for those involved. Records documenting Manhattan Project processes, activities, and individual people were not uniform, archived in various locations, and at times destroyed due to both administrative and accidental reasons, resulting in a fragmented historical record of the people and activities.
