Beginning with a synopsis of the Trinity Bomb detonation in the New Mexico desert, read how the Atomic age was born.

Read about how the atomic bomb was first developed, starting the nuclear arms race. As nuclear weapons proliferated, so did apprehension. A Non-Proliferation Treaty was released in 1968, and governments began to sign on to it. Green...

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...

This resource provides data about the physical destruction of Nagasaki, the medical aspect, and survivor stories.

Discusses the Manhattan Project of the United States which worked on developing nuclear weapons during World War II. It led to the two atomic bombs that were dropped on Japan in August 1945, ending the war with Japan.

Looks at the nuclear arms race in the 1950s as the United States and the USSR both stockpiled nuclear weapons. Includes 1951 propaganda video showing schoolchildren how to 'Duck and Cover' in the event of a nuclear attack. [9:15]

Oregon State University online exhibit provides information on nuclear weapons testing.

This site offers a comprehensive list of primary source documents from Harry S. Truman regarding the Potsdam Conference and decision to use atomic weapons.

Timeline of key events in the development of nuclear energy and nuclear weapons, including early scientific discoveries related to atomic science.

Describes the design of the first nuclear reactor by Enrico Fermi and his successful development of a self-ustaining nuclear chain reaction. Describes the evolution of the Manhattan Project and their race to develop the first atomic...

Credited with the creation of the atomic bomb, Robert Oppenheimer opposed the development of the hydrogen bomb. Read about Oppenheimer's education and involvement in the atomic explosions, which "changed the world forever."

This site from PBS provides biographical information about J. Robert Oppenheimer, and his involvement with the atomic bomb.

This resource describes the world's first nuclear reactor and the role which it played in the Manhattan Project. Also discussed are topics such as the goal of plutonium development for nuclear weapons, the goals of the top-secret,...

Uses maps and timelines to track nuclear proliferation in several different countries. An in depth discussion about how they got the weapons and where they are located within the countries.

From an information circular from the International Atomic Energy Agency, here is the actual Treaty that was signed in 1968 and become effective in March of 1970.

Students will discuss the role of technology of the atomic bomb and explore the destruction of Nagasaki and Hiroshima during WWII. Students will then outline some of the social and political changes that resulted from the Manhattan Project.

Here is the story of the first ever atomic bomb, beginning with early scientific ideas, leading up to the success of this weapon.

Site explores the history of the first nuclear weapons and the challenges of maintaining these weapons today.

This illustrated document from the AMERICAN EXPERIENCE Web site examines the "zones of destruction" caused by nuclear weapons.

This article from the Seattle Times describes the dawning of the atomic age. Illustrates the events of the detonation of the first atomic bomb in Trinity, New Mexico, just before the Hiroshima bomb.

This informative site discusses various types of nuclear bombs including the atomic bomb,thermonuclear weapons and dirty bombs.

J. Robert Oppenheimer is credited with the creation of the atomic bomb. But, "The country asked him to do something and he did it brilliantly, and they repaid him for the tremendous job he did by breaking him." This documentary traces...

Pictorial essay showcases the story of the atomic bombing and recovery of Hiroshima during World War II.

This site has information about the bombings of Nagasaki and Hiroshima. The information is detailed and in depth. Contains many links to related sites.