Answer:
the Manhattan Project
Explanation:
https://constitutioncenter.org/blog/on-this-day-fdr-approves-funding-the-manhattan-project#:~:text=On%20this%20day%20in%201941,the%20world's%20first%20atomic%20bombs.
The swampy location had a lot of disease
What do you mean. Do you want the definition of the name? or do you want the story of Christooher Columbus