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atomic bombings of Hiroshima and Nagasaki: Quick Facts

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The Information Architects of Encyclopaedia Britannica

The Information Architects maintain a master list of the topics included in the corpus of  Encyclopædia Britannica, and create and manage the relationships between them.
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Facts

Date August 6, 1945 - August 9, 1945
Location Hiroshima • Japan • Nagasaki
Context World War II

Photos and Videos

Atomic bombing of Hiroshima
Infographic titled The First Atomic Bombs, showing key facts about the first atomic bomb test in New Mexico and the bombings of Hiroshima and Nagasaki in Japan during World War II. Includes diagrams of bomb mechanisms, a map of Japan with target cities, and illustrations of the Little Boy and Fat Man bombs, along with details on deployment, explosive yield, and estimated casualties.
A diagram illustrating nuclear fission: a neutron strikes a uranium-235 nucleus, splitting it into barium and krypton nuclei, releasing energy and additional neutrons.
Otto Hahn
Lise Meitner and Otto Hahn
Neils Bohr
James Bryant Conant, wearing glasses and a suit, sits at a desk with his hands resting on the surface, looking slightly to the side.
Vannevar Bush with Differential Analyzer, c. 1935
Leslie Groves
First self-sustaining nuclear chain reaction
Fission of a uranium nucleus by a neutron
Split image showing Dr. J. Robert Oppenheimer at a chalkboard on the left and actor Cillian Murphy portraying Oppenheimer with a cigarette and hat on the right.
The impact of the atomic bomb on Hiroshima
Watch U.S. B-29 Superfortress Enola Gay decimate Hiroshima with a nuclear bomb in the Pacific War
The impact and aftermath of Nagasaki's bombing
See All Videos, Images, Audio and Interactives →

Related Topics and References

Topics

Timeline

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1933 - 1945
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Battle of the Atlantic
September 3, 1939 - May 8, 1945
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Battle of France
May 10, 1940 - June 25, 1940
Dunkirk evacuation
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May 26, 1940 - June 4, 1940
Map showing the British and Axis military campaigns in North Africa during World War II, with labeled troop movements, key battles, and shifting front lines from Egypt across Libya to Tunisia along the Mediterranean coast. The map includes arrows and dates marking advances and retreats by both sides, and highlights major turning points and defensive lines.
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June 1940 - May 13, 1943
the Blitz
Battle of Britain
July 1940 - September 1940
German bombing of London during the Blitz
the Blitz
September 7, 1940 - May 11, 1941
Operation Barbarossa
Operation Barbarossa
June 22, 1941
Pearl Harbor attack
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December 7, 1941
Wake Island
Battle of Wake Island
December 8, 1941 - December 23, 1941
U.S. troops advancing on Tarawa, Gilbert Islands, in 1943
Pacific War
December 8, 1941 - September 2, 1945
Bataan Death March
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April 9, 1942
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April 18, 1942
Battle of Midway
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June 3, 1942 - June 6, 1942
eastern New Guinea, from the 10th edition of Encyclopædia Britannica, c. 1902
Kokoda Track Campaign
July 1942 - January 1943
U.S. Marines in combat gear wade ashore from a landing craft onto a sandy beach during the Guadalcanal landing in August 1942.
Battle of Guadalcanal
August 1942 - February 1943
Battle of Stalingrad
Battle of Stalingrad
August 22, 1942 - February 2, 1943
Operation Mincemeat documents
Operation Mincemeat
1943
Warsaw Ghetto Uprising
Warsaw Ghetto Uprising
April 19, 1943 - May 16, 1943
The Allied invasion of Sicily
Allied invasion of Sicily
July 9, 1943 - August 17, 1943
Italian Campaign, World War II
Italian Campaign
July 9, 1943 - May 2, 1945
Battle of Anzio
Battle of Anzio
January 22, 1944 - June 5, 1944
American soldiers in helmets crouch inside a landing craft approaching a smoke-covered beach during the D-Day invasion of Normandy, June 6, 1944.
Normandy Invasion
June 6, 1944 - July 9, 1944
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Cowra breakout
August 5, 1944
Battle of Leyte Gulf
Battle of Leyte Gulf
October 23, 1944 - October 26, 1944
Battle of the Bulge
Battle of the Bulge
December 16, 1944 - January 16, 1945
Battle of Iwo Jima
Battle of Iwo Jima
February 19, 1945 - March 26, 1945
U.S. Marines on Okinawa
Battle of Okinawa
April 1, 1945 - June 21, 1945
Atomic bombing of Hiroshima
atomic bombings of Hiroshima and Nagasaki
August 6, 1945 - August 9, 1945

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