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  1. The Manhattan Project was a research and development program undertaken during World War II to produce the first nuclear weapons. It was led by the United States in collaboration with the United Kingdom and Canada.

  2. Jul 26, 2017 · Learn about the American-led effort to develop a nuclear weapon during World War II, from the code name to the atomic bombings of Hiroshima and Nagasaki. Explore the scientific, military and political aspects of the Manhattan Project and its legacy.

  3. Jul 21, 2023 · The Manhattan Project was a top-secret program to make the first atomic bombs during World War II. Its results had profound impacts on history: the subsequent nuclear...

  4. Learn about the US government program that developed and used the first nuclear weapons in World War II. Explore the history, science, and controversies of the Manhattan Project and its impact on the world.

  5. Jun 17, 2024 · The first atomic bomb was detonated on July 16, 1945, in New Mexico as part of the U.S. government program called the Manhattan Project. The United States then used atomic bombs on Hiroshima and Nagasaki in Japan on August 6 and 9, respectively, killing about 210,000 people.

  6. May 12, 2017 · Learn about the Anglo-American effort to develop an atomic bomb during World War II and its legacies today. Explore the preliminary organization, research, production, and results of the Manhattan Project, as well as the sites and people involved.