It was the ancient Persian empire my good sir <span />
Pretty sure Taxes helped out a lot
The Manhattan Project was the secret government initiative that lead to the creation of the first atomic bomb in US history. This program was a result of hundreds of millions of dollars worth of money and the collaboration of individuals all over the country.
Over the course of the Manhattan Project, 120,000 people were involved in the creation of this atomic bomb. This include scientists and engineers who worked together on the specifics of the bomb and the impact it would have. This success can also be contributed to the business owners and workers who helped build the technology and equipment needed to make this bomb/test it during the 1940's.
Lastly, the military worked with all of these different groups, especially the universities (like including Columbia and University of California at Berkley) who were conducting research for the government.
Water shortage would be the main limiting factor
