Khan Academy
Khan Academy: Us History: 1890 1945: The Manhattan Project and the Atomic Bomb
In 1945, the United States dropped two atomic bombs on Japan, ending World War II.
Independence Hall Association
U.s. History: The Decision to Drop the Bomb
Was it necessary to drop the atomic bomb on Japan in order to save lives? Were the consequences worse than the waiting for a surrender of Japan? Read this discussion of the decision to drop the bomb, find out about the possible motives...
Harry S. Truman Library and Museum
Little Boy Dropped on Hiroshima
This site has information about the atomic bomb which was dropped on Hiroshima. Pictures of Hiroshima after the bomb and the mushroom cloud are included.
Other
Nuclearfiles.org: Chronology on Decision to Bomb
This detailed chronology of the events and communication of 1945-1946 shows Truman's role in the process of the decision to drop the world's first atomic bomb used in warfare upon Hiroshima and then the second upon Nagasaki. Also...
University of California
University of California, Los Angeles: Children of the Atomic Bomb
In his own words, an American physician describes the devastating effects of the atomic bomb dropped in Nagasaki during World War II. Included is an online collection of images of the aftermath, videos, lesson plans, oral history...
Ducksters
Ducksters: World War Ii History for Kids: The Atomic Bomb
Kids learn about the history of the Atomic Bomb during World War II. Dropped on Hiroshima and Nagasaki of Japan to end WW2.
Harry S. Truman Library and Museum
Tpml: Truman and the Bomb, a Documentary History
This site offers a comprehensive list of primary source documents from Harry S. Truman regarding the Potsdam Conference and decision to use atomic weapons.
Digital History
Digital History: The Decision to Drop the Bomb [Pdf]
The day before the bombing of Pearl Harbor, President Franklin Roosevelt gave the go-ahead to scientists to develop an atomic bomb. This site gives a good overview of the war in the Pacific against Japan, the increasing successes of the...
Rice University
Rice University: Wwii: Bombs and Peace
Students explore the final events and end of World War II, such as the community impact of events like the dropping of atomic bombs and President Roosevelt's death.
Harry S. Truman Library and Museum
University of Missouri Columbia: Truman and the Bomb
This site from the University of Missouri-Columbia offers a comprehensive list of primary source documents from Truman regarding the Potsdam Conference and decision to use atomic weapons.
Annenberg Foundation
Annenberg Learner: You Decide: The Atom Bomb
In the final days of World War II, the US dropped atomic bombs on Hiroshima and Nagasaki. Was President Truman correct in his decision? Compare your response to others.
Other
Atom Central: The Bombing of Hiroshima and Nagasaki
Read this detailed account of the decision and action to drop two atomic bombs on Japan after the attacks on Pearl Harbor.
Digital History
Digital History: The Aftermath of the Decision [Pdf]
A touching and horrifying description of the devastation caused by the dropping of atomic bombs on Hiroshima and Nagasaki, which brought about the surrender of Japan in World War II. Suggested student exercises accompany the information....
Other
Kids' Peace Station: From Hiroshima
The atomic bomb dropped on Hiroshima had lasting and far reaching effects on all mankind! Learn about a young girl, Sadako, and her paper cranes as well as the Kids Peace Movement and building of the Hiroshima Peace Memorial Museum for...
Smithsonian Institution
National Air and Space Museum: Exhibition of the Enola Gay
Here you will find a video and photo gallery of the plane that dropped the first atomic bomb. This is the online version of the former exhibition of the plane.
Atomic Archive
Atomic Archive: Example Scenario: New York Example
From the Atomic Archive - the online companion to the award-winning CD-ROM. This page (and the several that follow from it) paint a picture of the events which would occur if an H-bomb was dropped pon New York City. The effect of the...
Atomic Archive
Atomicarchive.com: The Manhattan Project
A collection of primary source documents on the Manhatten project and the decision to drop the Atomic Bomb on Japan in 1945. Content includes letters to and from J. Robert Oppenheimer, written deals and agreements, internal memorandums,...
Annenberg Foundation
Annenberg Learner: A Biography of America: The Fifties 1945 1960
World War II ends with the legacy of its final moment: the atomic bomb. After reading comprehensive background material, interactive feature lets you decide if President Truman was correct in his decision to drop atomic bombs on...
The Best Notes
The Best Notes: Hiroshima by John Hersey
This is an online study guide/notes for the non-fiction book Hiroshima by John Hersey including author information, literary elements, chapter-by-chapter summaries/notes, study questions, and analysis. The book tells the stories of six...
Curated OER
Dr Harold Agnew, Here With the Plutonium Core of the Nagasaki Bomb
Published on 8/04/05, the BBC interviewed three of the men involved in the mission to drop the atomic bomb on the city of Hiroshima. We get their viewpoints and an understanding of what their duties were on that day.
Curated OER
Bbc: The Men Who Bombed Hiroshima
Published on 8/04/05, the BBC interviewed three of the men involved in the mission to drop the atomic bomb on the city of Hiroshima. We get their viewpoints and an understanding of what their duties were on that day.
PBS
Pbs News Hour Extra: Controlling Nuclear Weapons
For this lesson, students examine the impact of weapons of mass destruction, e.g., the atomic bombs dropped on Japan in World War II. They look at nuclear proliferation and treaties, and debate the pros and cons of nuclear weapons.
Other
Mr. Dowling's Passport: Harry Truman's Decision
Read about Harry Truman and his decision to drop atomic bombs on Japan which ultimately ended World War II.
PBS
Pbs: People & Discoveries Niels Bohr
A wonderful PBS biography of a great man. This contains many personal touches, yet does a fine job of describing Bohr's scientific work. But it's best at Bohr the man. Nice quotes, one in the middle, one at the end.