-
World War 2 begins
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. -
Warning from Albert Einstein
A letter was sent from Albert Einstein to President Franklin D. Roosevelt warning of the possible construction of a nuclear bomb. -
Talk of the Manhattan Project
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. -
Pearl Harbor
Japan bombed Pearl Harbor and the U.S. entered World War 2. -
The Germans
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! -
The Manhattan Project Begins
Physicist J. Robert Oppenheimer became director of the Manhattan Project. The project originally began to counter Nazi, Germany. -
Franklin D. Roosevelt Passes Away
The newly dubbed Vice President, Harry S. Truman, now becomes the 33rd President of the United States. -
End of War in Europe
Germany agrees to unconditional surrender, ending the war in Europe. -
Trinity Test
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. -
The A-Bomb Approved
Truman approves order for Atomic bomb to be used. -
The 1st Atomic Bomb
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 -
Soviet Union
The Soviet Union declares war on Japan. -
Bombing of Nagasaki
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. -
President Truman's Announcement
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. -
Japan Surrenders
On September 2nd, Japan formally surrendered, ending World War 2.
