Timeline of the Manhattan Project: References & Edit History
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Michael Ray
Michael Ray is an assistant managing editor who has worked at Britannica since 2003. In addition to leading the Geography and History team, he oversees coverage of European history and military affairs. He earned a B.A. in history from Michigan State University in 1995.
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Patrick Riley
Patrick Riley is the Senior Illustrator for Encyclopædia Britannica. He has worked at Britannica since 2007.
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| Type | Description | Contributor | Date |
|---|---|---|---|
| Media updated. | Jul 10, 2025 |
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