1942-1953

  • First Atomic Bomb

  • Jefferson Memorial created

    The Jefferson Memorial was finished
  • D-day

    The Allied landings on the beaches of Normandy marked the start of a long campaign to liberate Europe from Nazi occupation.
  • Battle of Okinawa

    Troops invade Okinawa, beginning the Battle of Okinawa
  • Roosevelt dies

    Roosevelt dies
  • Period: to

    Harry S. Truman becomes president

    Harry S. Truman becomes president after Roosevelt dies.
  • Germany Surrenders

    On April 30, 1945, Hitler committed suicide and within days, Berlin fell to the Soviets then German armed forces surrendered unconditionally.
  • Truman Doctrine

    The US will grant $400 million in aid to Greece and Turkey to battle Communist terrorism
  • NATO

    The North American Treaty Organization or NATO is formed as a security alliance of 30 countries from North America and Europe
  • Period: to

    Korean War

    A three-year war fought between North and South Korea
  • Transcontinental TV

    Truman made the very first transcontinental tv broadcast appearance
  • First hydrogen bomb

    The first hydrogen bomb is exploded in the Pacific Ocean.