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September 1st is presumed to be the start of World War 2 when Germany invaded Poland. A few days later Britain and France declared war on Germany.
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A letter was sent from Albert Einstein to President Franklin D. Roosevelt warning of the possible construction of a nuclear bomb.
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Britain was exposed to constant air attack and was still threatened with the possibility of invasion. Prime Minister Churchill and President Roosevelt agreed to carry on the Manhattan Project in the U.S.
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Japan bombed Pearl Harbor and the U.S. entered World War 2.
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We knew the Germans were working to find a way to add atomic energy to the other engines of war which they hoped to enslave the world. But they failed!
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Physicist J. Robert Oppenheimer became director of the Manhattan Project. The project originally began to counter Nazi, Germany.
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The newly dubbed Vice President, Harry S. Truman, now becomes the 33rd President of the United States.
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Germany agrees to unconditional surrender, ending the war in Europe.
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The U.S. sucessfully detonates the world's first atomic bomb at the Trinity Test site in the desert of New Mexico. The Trinity Test occured at 5;29n a.m. with the power equivalent to 19,000 tons of TNT.
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Truman approves order for Atomic bomb to be used.
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The 1st Atomic Bomb to be used as a weapon is dropped on Hiroshima, Japan. At approximately 8;15 a.m. and nicknamed Little Boy. The bomb was released from a B-29 bomber plane Enola Gay, and piloted by Brigadier General Paul Tibbets. It exploded 2,000 ft above ground, killing 80,000 people instantly
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The Soviet Union declares war on Japan.
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Three days after the 1st atomic bomb detonated over Hiroshima, the U.S. dropped another atomic bomb over Nagasaki, Japan. Forcing an end to World War 2. It was estimated that 75,000 people were killed immediately.
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President Truman speaks to the nation in his radio address. "The world will mote that the 1st atomic bomb was dropped on Hiroshima, a military base." By this time the U.S. had already dropped the 2nd bomb on Nagasaki.
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On September 2nd, Japan formally surrendered, ending World War 2.
