1942-1953

  • Beginning of the Manhattan Project

    Beginning of the Manhattan Project
    This year President Roosevelt, along with the Prime Minister of Great Britain and other leaders, sign for the atomic bomb project, the "Manhattan Project," to be worked on.
  • Executive Order 9066

    Executive Order 9066
    President Franklin D. Roosevelt signed Executive Order 9066. Around 110,000 Japanese Americans were sent to confinement in relocation camps on the West Coast during World War II.
  • D-Day

    D-Day
    On this day, the American forces and those of eleven other allied nations stormed the beaches of France, which began the World War II invasion of Europe.
  • Harry Truman Takes Over Presidency

    Harry Truman Takes Over Presidency
    President Roosevelt dies suddenly while in office, and vice president Harry Truman takes over.
  • Bombing of Hiroshima (and Nagasaki)

    Bombing of Hiroshima (and Nagasaki)
    On this day, President Truman ordered the atomic bomb to be dropped on Hiroshima. Three days later, Nagasaki, Japan was also bombed. This led to to the surrender of Emperor Hirohito of Japan on August 15. This puts World War II to an end.
  • First Meeting of the United Nations

    First Meeting of the United Nations
    The first meeting of the United Nations occurred. It was formed with fifty-one nations on October 24, 1945.
  • Period: to

    The Korean War

    President Truman ordered the interference of the American military when North Korea invaded South Korea. This led to the three-year Korean War.
  • Rock and Roll

    Rock and Roll
    Alan Freed introduces Rock and Roll to America, kicking off a whole new era of music associated with teenage rebellion. This is what later created stars such as Elvis Presley.
  • Dwight D. Eisenhower Inaugurated

    Dwight D. Eisenhower Inaugurated
    Dwight Eisenhower is inaugurated to be the president after Harry Truman, later becoming the 34th president.