History of The Atomic Bomb

By JHunter2248

  • Pearl Harbor

    Pearl Harbor
    The Japanese attack the U.S navy base at Pearl Harbor, Hawaii, destroying 188 aircraft and causing over 4,000 U.S casualties

  • Declaration of war on the Empire of Japan

    Declaration of war on the Empire of Japan
    The United States declares war on Japan
  • Period: to

    Manhattan Project

    Started in 1939, active from 1942-1945, and disbanded in 1947, the Manhattan Project produced and tested the world's first atomic bombs.

  • Yalta Conference

    Yalta Conference
    Stalin, Churchill, and Truman attend this conference to discuss the rebuilding and reorganization of Europe.

  • Franklin D. Roosevelt's Death

    Franklin D. Roosevelt's Death
    Franklin D. Rooselevelt passes away and Vice President, Harry S. Truman becomes the 33rd President of the United States.

  • Trinity

    Trinity
    The United States tests the first atomic bomb in New Mexico (operation codename: Trinity)

  • Potsdam Declaration

    Potsdam Declaration
    The Potsdam Declaration called for the unconditional surrender of the Japanese and stated that if they did not surrender, it was subject to "utter destruction".

  • Atomic bombing of Hiroshima

    Atomic bombing of Hiroshima
    Atomic bomb, codename; Little Boy, was dropped on Hiroshima, causing roughly 66,000 deaths and 69,000 injuries.

  • Atomic Bombing of Nagasaki

    Atomic Bombing of Nagasaki
    The atomic bomb, codename; Fat Man, was dropped on Nagasaki causing roughly 44,000 deaths.

  • Start of the Cold War

    Start of the Cold War
    It is agreed by many scientists that the cold war started rouhgly in 1947 and ended in 1989