Manhattan Project (aug 13, 1942 – jan 1, 1945)
Description:
The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and CanadaAdded to timeline:
Date:
aug 13, 1942
jan 1, 1945
~ 2 years and 4 months