The Manahattan Project

By awatters

  • Deuterium

    Deuterium is discovered by Harold C. Urey

  • Nuclear Fission in War

    Robert Oppenheimer realizes the first military possibilities of nuclear fission
  • Period: to

    WWII

    The war that caused the use of the atomic bomb

  • Plutonium

    Plutonium is discovered by Glenn Seaborg

  • Beginning

    FDR gives the go-ahead for the development of an atomic weapon

  • Manhattan Project

    FDR authorizes the Manhattan Engineering District

  • Colonel Leslie Groves

    Colonel Groves is placed in charge of the Manhattan Project

  • Target

    Japan becomes the future target for any atomic bomb

  • Harry Truman

    FDR dies. Harry Truman becomes president

  • Warning

    A petition, started by Leo Szilard, attempts to stop the use of the atomic bomb

  • Trinity Test

    The world's first atomic detonation takes place in Alamogrodo, New Mexico

  • Orders

    President Truman orders atomic bombs to be used

  • Little Boy

    Little Boy, a uranium bomb, is detonated over Hiroshima, Japan. It kills between 90,000 and 100,000 people immediately.