Manhattanproject

Manhattan Project

  • Heavy Hydrogen

    Heavy Hydrogen
    Heavy Hydrogen or deuterium is discovered by Harold C. Urey.
  • Atom Splitting

    Atom Splitting
    The atom is split by John Crockcroft and E.T.S. Walton of Great Britain thereby proving Einstein's Theory of Relativity.
  • Fission

    Fission
    Robert Oppenheimer realizes the military possibilities of nuclear fission.
  • It Begins

    It Begins
    World War II Begins.
  • Go Ahead

    Go Ahead
    FDR gives the go-ahead for the development of an atomic weapon.
  • In Charge

    In Charge
    Colonel Leslie Groves is placed in charge of the Manhattan Project. J. Robert Oppenheimer becomes the Project's Scientific Director.
  • Primary Target

    Primary Target
    Japan becomes the primary target for any future atomic bomb according to the Military Policy Committee of the Manhattan Project.
  • New President

    New President
    Franklin Roosevelt dies. Harry Truman is named the 33rd President of the US.
  • Testing

    Testing
    The world's first atomic detonation takes place in the 'Trinity Test' at Alamogordo, New Mexico.
  • Use It

    Use It
    President Truman orders atomic bombs to be used.
  • 1st Bomb

    1st Bomb
    Little Boy, a uranium bomb, is detonated over Hiroshima, Japan. It kills between 90,000 and 100,000 people immediately.
  • 2nd Bomb

    2nd Bomb
    Fat Man, a plutonium implosion-type bomb, was dropped on the city of Nagasaki
  • Surrender

    Surrender
    Japan announces its formal surrender.