Atomic bomb

The Manhattan Project

By Murf
  • Glenn Seaborg discovers plutonium

    Glenn Seaborg discovers plutonium
    Gleen Seaburg first discovered plutonium on Febuary 23, 1941, a crucial element in the atomic bombs used on Hiroshima and Nagasaki.
  • Period: to

    Atomic Bomb

    Two atomic bombs, Fat man and Little Boy, were dropped on Hiroshima and Nagasaki to end WWII
  • FDR gives the Go-Ahead

    FDR gives the Go-Ahead
    FDR gives the okay to start the production of an atomic bomb, this becomes known as the Manhattan Project.
  • Bombing of Pearl Harbor

    Bombing of Pearl Harbor
    Pearl Harbor BombingJapan bombs Pearl Harbor crippling Americas navy and throwing them into WWII.
  • J. Robert Oppenheimer takes over Manhattan Project

    J. Robert Oppenheimer takes over Manhattan Project
    Physist Robert Oppenheimer was appointed to director of the Manhattan Project which was a secret US government program that build and tested the nuclear bomb.
  • First controlled nuclear fission reaction

    First controlled nuclear fission reaction
    First controlled nuclear fission reaction is produced by Enrico Fermi at the University of Chicago.
  • FDR dies

    FDR dies
    Franklin Roosevelt dies. Harry Truman is named the 33rd President of the US.
  • The war in Europe ends.

    The war in Europe ends.
    Allied forces take over Western Germany and the Axis begins to collapse after Mussolini's death.
  • The only option

    The only option
    American intelligence discovers the only obstacle to peace with Japan is 'unconditional surrender'.
  • First atomic detonation

    First atomic detonation
    The world's first atomic detonation takes place in the 'Trinity Test' at Alamogordo, New Mexico.
  • Bombs to be dropped

    President Truman ordered the bombs to be used on Japan.
  • USA drops warning leaflets on Nagasaki

    On August 1st 1945 America dropped 5 million leaflets on Nagasaki warning of what was to come.
  • Hiroshima bombing

    Hiroshima bombing
    Hiroshima BombingThe atomic bomb, little boy, was dropped on Hiroshima.
  • Nagasaki bombing

    Nagasaki bombing
    The atomic bomb, Fat Man, the more powerful of the two, was dropped on Nagasaki.
  • Surrender

    Jpan formally surrendered after Hiroshima and Nagasaki were destroyed.