The Secret Letter from Albert Einstein That Sparked the Manhattan Project

In the late summer of 1939, as Europe edged toward catastrophe, a letter quietly crossed the desk of the President of the United States. It was brief, cautious in tone, and written with visible restraint. Yet its implications were enormous. That letter would alter the trajectory of science, warfare, and global power—without a single explosion having yet occurred. The author was . The consequences would culminate in the . Between those two points lay fear, urgency, and a moral burden that history has never fully resolved. A Scientist Far from Power By 1939, Einstein was one of the most famous minds on the planet, but he was not a man embedded in government machinery. Having fled Nazi Germany, he lived…