Atomic Heritage Foundation

1943 Nov

1943 Nov

The world's first sample of plutonium in metal form is produced by reducing PuF4 with Ba at the Chicago Met Lab.

Date Range:

1943CE Nov

Era:

1942 to 1943: Early Manhattan Project

Hear the stories of the Manhattan Project

Browse our collection of oral histories with workers, families, service members, and more about their experiences in the Manhattan Project.

Tour the Sites of the Manhattan Project

Tour some of the key locations of the Manhattan Project with an audio guide.

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Albert Einstein receiving his his certificate of U.S. citizenship in 1940 from Judge Philip Forman. Photo courtesy Al Aumuller/Library of Congress.

Scientist Refugees and the Manhattan Project

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