Manhattan Project

The Manhattan Project was a top-secret operation during World War II to develop a nuclear (atomic) weapon. The project was conducted jointly by the United States, Canada, and the United Kingdom.

Key Dates

  1. 1934: Enrico Fermi discovers artificial radioactivity through firing neutrons at uranium atoms
  2. February, 1941: Glenn Seaborg discovers plutonium
  3. 1942: Oppenheimer holds a conference on nuclear weapon design
  4. July 15, 1946: Trinity Test
  5. August 6, 1946: "Little Boy"
  6. August 9, 1946: "Fat Man"

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