One of the most historic buildings at Hanford is the B Reactor, code named 105-B during World War II. The B Reactor was the world's first, full-scale nuclear reactor and produced the plutonium used in the Fat Man bomb dropped over Nagasaki, Japan, in August of 1945. Five days after that bomb was deployed, World War II ended. - US Dept of Energy
| Y/M/D | Person | Association | Description | Composition | Food | Event |
|---|---|---|---|---|---|---|
| Y/M/D | Person | Association | Description | Composition | Food | Event |
| E I DuPont de Nemours and Co | Architect | |||||
| 1945/00/00 |
| Particulars for Hanford B Reactor: | |
|---|---|
| Historic Use | Energy facility |
| Area of Significance | Engineering |
| Owner | Federal |
| Criteria | Historic Event |
| Area of Significance | Military |
| Level of Significance | National |
| Area of Significance | Politics-government |
| Area of Significance | Science |
| Sight Category | Structure |
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