Historical place archive

Hanford in History

Browse historical events and people recorded at Hanford in United States of America. The records below are rendered directly from the World History Database into this page's initial HTML.

3 records3 event labels3 people1943–1944

Historical events in Hanford

1943

4 October 1943
Manhattan Project
Robert Oppenheimer · Physics

Construction begins for the first reactor at the Hanford Site

1944

30 September 1944
Xenon-135 Reactor Poisoning
John Archibald Wheeler · Nuclear Power

The cause of B Reactor's unexpected shutdown is identified as xenon-135, a powerful neutron absorber produced during fission.

17 December 1944
Hanford D Reactor Criticality
Leslie Richard Groves · Nuclear Power

Hanford's D Reactor reaches criticality with sufficient excess reactivity to overcome fission-product poisoning.

Provenance

About these place records

These entries are generated from stored World History Database records whose country and place fields match United States of America and Hanford. Names, dates, event labels and descriptions are reviewed and normalised as the database develops. Historical place names may not match modern administrative boundaries.

This database is a research index. For formal scholarly citation, verify individual claims against appropriate primary, archival, academic or specialist sources.