Final answer:
The Manhattan Project was a top-secret research project during WWII with the goal of developing the atomic bomb. Albert Einstein played a supporting role, and many scientists who had fled Nazi Germany were involved.
Step-by-step explanation:
The subject of this question is History.
The Manhattan Project was a top-secret research project during World War II that aimed to develop an atomic bomb. It was led by J. Robert Oppenheimer, not Albert Einstein, who played a supporting role by writing a letter to President Roosevelt expressing the potential of atomic weapons.
Around 200,000 people worked on the project, including many scientists who had fled Nazi Germany, but not defected from Germany. The United States wanted to create an atomic bomb first in order to gain a strategic advantage over Germany and Japan.
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