0
The Manhattan Project (or the creation of the first atomic bomb) began in 1942, although it had been discussed as early as 1939. The bombs were esentially part of an arms race against the Nazi scientists. It ended in 1946 a little after we bombed Japan because it wasn't perfect when we used it on Hiroshima and Nagasaki.
Still curious? Ask our experts.
Chat with our AI personalities
ReneChange my mind. I dare you.
Chat with Rene
FranI've made my fair share of mistakes, and if I can help you avoid a few, I'd sure like to try.
Chat with Fran
RossEvery question is just a happy little opportunity.
Chat with Ross
Add your answer:
Earn +20 ptsQ: How long did the Manhattan Project take till it was finished?
Write your answer...
Submit
Still have questions?
Continue Learning about Military History
What did nativists fear the Chinese workers would do after the railroads were finished?
Take jobs from whites.
How long did it take to take to get d day?
30 days
How long did it take to make the first nuclear weapon?
Actual work was begun in the US in 1942 and it was finished in 1945, therefor about 3 years. To assemble the early bombs from a kit in the field took about 3 days with an assembly crew of 40 to 50 men working around the clock.
How long did it take the Germans prepare for D-Day?
.
How long did it take MacArthur to get back to the Philippines?
2 years
Trending Questions
Who commanded German Army in World War 1?
What was the arms race and why did it happen?
What Churchill used the term Iron Curtain to describe?
What roles did Lenin play in the Russian Revolution?
How is containment important?
When did Kazan War happen?
Why did the industrial output of the US during the war astound the rest of the world?
What action should the US have taken when the communist coup d'etat happened in Czechoslovakia in Feb 1948 according to the Truman Doctrine?
Where was the news announced from world war 11?
Where did D-Day take place?
Explain the reason why the Philippines was easily pacified by the Spaniards?
What was the reason that the E-1101 antiserum against motaba virus was kept secret?
Who would win a spartan or a gladiator?
When did Saddam Hussein take rule of Iraq?
What did the G.I bill help ex-soldiers to do?
What does each color mean in the military?
Who were the states involved in the Cold War?
Which is the most power full army in the world?
Who slaughtered these people at wounded knee?
How old were most of the U.S. soldiers in the Vietnam War?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.