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historicalmarkerproject/markers/HM9S5_mcdonald-ranch-house-trinity-site_Rome-NM.html

Restored byUS Army White Sands Missile RangeUS Department of EnergyNational Park Service1984In the front room of this humble ranch house the world's first nuclear device was assembled on 13 July 1945. The device was then taken to Trinity Site, two…

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