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The United States detonated two nuclear weapons over the Japanese cities of Hiroshima and Nagasaki on August 6 and 9, 1945, respectively, with the consent of the United Kingdom, as required by the Quebec Agreement. The two bombings killed between 129,000 and 226,000 people, most of whom were civilians, and remain the only uses of nuclear weapons in armed conflict.
In the final year of World War II, the Allies prepared for a very costly invasion of the Japanese mainland. This undertaking was preceded by a conventional and firebombing campaign which devastated 67 Japanese cities. The war in Europe had concluded when Germany signed its instrument of surrender on May 8, 1945, and the Allies turned their full attention to the Pacific theater. The Allies called for the unconditional surrender of the Imperial Japanese armed forces in the Potsdam Declaration on July 26, 1945, the alternative being "prompt and utter destruction." Japan ignored the ultimatum and the war continued.
By August 1945, the Allies' Manhattan Project had produced two types of atomic bombs, and the 509th Composite Group of the United States Army Air Forces (USAAF) was equipped with the specialized Silverplate version of the Boeing B-29 Superfortress that could deliver them from Tinian in the Mariana Islands. The Allies issued orders for atomic bombs to be used on four Japanese cities on July 25. On August 6, one of the modified B-29s dropped a uranium gun-type bomb ("Little Boy") on Hiroshima. Another B-29 dropped a plutonium implosion bomb ("Fat Man") on Nagasaki three days later. The bombs immediately devastated their targets. Over the next two to four months, the acute effects of the atomic bombings killed between 90,000 and 146,000 people in Hiroshima and 39,000 and 80,000 people in Nagasaki; roughly half of the deaths in each city occurred on the first day. Large numbers of people continued to die for months afterward from the effects of burns, radiation sickness, and other injuries, compounded by illness and malnutrition. In both cities, most of the dead were civilians, although Hiroshima had a sizable military garrison.
Japan surrendered to the Allies on August 15, six days after the Soviet Union's declaration of war and the bombing of Nagasaki. The Japanese government signed the instrument of surrender on September 2 in Tokyo Bay, which effectively ended World War II. Scholars have extensively studied the effects of the bombings on the social and political character of subsequent world history and popular culture, and there is still much debate concerning the ethical and legal justification for the bombings....
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The United States detonated two nuclear weapons over the Japanese cities of Hiroshima and Nagasaki on August 6 and 9, 1945, respectively, with the consent of the United Kingdom, as required by the Quebec Agreement. The two bombings killed between 129,000 and 226,000 people, most of whom were civilians, and remain the only uses of nuclear weapons in armed conflict.
In the final year of World War II, the Allies prepared for a very costly invasion of the Japanese mainland. This undertaking was preceded by a conventional and firebombing campaign which devastated 67 Japanese cities. The war in Europe had concluded when Germany signed its instrument of surrender on May 8, 1945, and the Allies turned their full attention to the Pacific theater. The Allies called for the unconditional surrender of the Imperial Japanese armed forces in the Potsdam Declaration on July 26, 1945, the alternative being "prompt and utter destruction." Japan ignored the ultimatum and the war continued.
By August 1945, the Allies' Manhattan Project had produced two types of atomic bombs, and the 509th Composite Group of the United States Army Air Forces (USAAF) was equipped with the specialized Silverplate version of the Boeing B-29 Superfortress that could deliver them from Tinian in the Mariana Islands. The Allies issued orders for atomic bombs to be used on four Japanese cities on July 25. On August 6, one of the modified B-29s dropped a uranium gun-type bomb ("Little Boy") on Hiroshima. Another B-29 dropped a plutonium implosion bomb ("Fat Man") on Nagasaki three days later. The bombs immediately devastated their targets. Over the next two to four months, the acute effects of the atomic bombings killed between 90,000 and 146,000 people in Hiroshima and 39,000 and 80,000 people in Nagasaki; roughly half of the deaths in each city occurred on the first day. Large numbers of people continued to die for months afterward from the effects of burns, radiation sickness, and other injuries, compounded by illness and malnutrition. In both cities, most of the dead were civilians, although Hiroshima had a sizable military garrison.
Japan surrendered to the Allies on August 15, six days after the Soviet Union's declaration of war and the bombing of Nagasaki. The Japanese government signed the instrument of surrender on September 2 in Tokyo Bay, which effectively ended World War II. Scholars have extensively studied the effects of the bombings on the social and political character of subsequent world history and popular culture, and there is still much debate concerning the ethical and legal justification for the bombings....
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Democritus, 1st Atomic Theory
Democritus ("chosen of the people") was an Ancient Greek philosopher born in Abdera, Thrace, Greece. He was an influential pre-Socratic philosopher who formulated an atomic theory for the cosmos. His exact contributions are difficult to disentangle f... |
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Nostradamus, The Prophecies
Nostradamus was a French apothecary and reputed seer who published collections of prophecies that have since become famous worldwide. He is best known for his book Les Propheties, the first edition of which appeared in 1555. Since the publication of... |
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Harry Truman, 33rd US President, 1945-1952
Harry Truman was president of America (1945-1952) after the death of F.D. Roosevelt in April 1945. Harry Truman gave the order for the atomic bombs to be dropped on Hiroshima and Nagasaki and he represented the United States at Potsdam, the last of t... |
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Hirohito, 124th Emperor of Japan
Hirohito, the Showa Emperor, reigned over Japan from 1926 to 1989. He was known in the West by his given name Hirohito (he had no surname). He was the 124th Emperor of Japan. His reign was the longest of all Japanese emperors, and oversaw the greates... |
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Enrico Fermi, 1st Nuclear Reactor
Enrico Fermi was an Italian-born, naturalized American physicist particularly known for his work on the development of the first nuclear reactor, Chicago Pile-1, and for his contributions to the development of quantum theory, nuclear and particle phy... |
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Oppenheimer, Father of the Atomic Bomb
Julius Robert Oppenheimer was an American theoretical physicist and professor of physics at the University of California, Berkeley. He is among the persons who are often called the "father of the atomic bomb" for their role in the Manhattan Project,... |
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World War 2, WW2
World War II was a global war that lasted from 1939 to 1945. The vast majority of the world's countries - including all the great powers - eventually formed two opposing military alliances: the Allies and the Axis. A state of total war emerged, direc... |
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Manhattan Project, Development Atomic Bomb
The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and Canada. From 1942 to 1946, the project was under... |
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