July 16, 1945: The Trinity Test | Today in History, in Six Minutes

Before dawn on July 16, 1945, the Manhattan Project tested the first nuclear device at Trinity in New Mexico. This episode follows the plutonium design, the delayed shot, what observers saw, and the people living nearby and downwind who had not been warned. This episode was produced with AI narration and scripting, with human editorial review. This episode includes AI-generated content.