1942-1953

  • Manhattan Project

    The Manhattan Project was a U.S. government-run effort to research, build, and then use an atomic bomb.
  • Jefferson memorial is built

  • The G.I. Bill of Rights

    The GI Bill was a federal effort to provide financial and social benefits to World War II veterans.
  • Franklin D. Roosevelt become president

  • Use of the atomic bomb

  • United States enters the United Nations

  • The hydrogen bomb is used for the first time

  • The 22nd Amendment is passed

    No person shall be elected to the office of the President more than twice.
  • Dwight D. Eisenhower is elected president

  • The Nuclear Test

    The testing of atomic bombs by exploding them either above the ground.