History Section

History Menu Screen

The History section chronicles the important discoveries and decisions leading up to the development of the first atomic bomb, up through recent events in today's post Cold War era. Historical and formerly classified documents and footage aid in the understanding of the development of the atomic bomb. Discover the extraordinary science and people behind a pivotal event in world history - the building and testing of the first atomic bomb.

San Francisco Screenshot

This is one of the 400 documentary photographs accompanied by captions which provide the necessary context and related information.

Nuclear Test Photo

This is a screenshot of the film footage of the Trinity Test with its accompanying caption. Films may be paused, rewound and, on appropriate machines, played full screen.


This detailed map shows the damage to Hiroshima, Japan after the dropping of the atomic bomb.

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National Science FoundationNational Science Digital LibraryNuclear Pathways Member SiteThis project is part of the National Science Digital Library and was funded by the Division of Undergraduate Education, National Science Foundation Grant 0434253