What did Albert Einstein have to do with WW2?

Answer 1

Albert Einstein played a significant role in World War II primarily through his letter to President Franklin D. Roosevelt in 1939, warning about the potential for Nazi Germany to develop atomic weapons. This letter prompted the U.S. government to initiate research into nuclear fission, leading to the Manhattan Project. Although Einstein did not directly work on the project, his theoretical insights on relativity and energy contributed to the scientific foundation of nuclear physics. Additionally, he was an outspoken advocate for peace and disarmament following the war.