Ethel Rosenberg

Ethel Greenglass Rosenberg was a central figure in one of the most controversial espionage cases in United States history. Alongside her husband Julius Rosenberg, she was accused of participating in a network that transmitted secrets about the development of the atomic bomb to the Soviet Union during and after World War II. The couple were tried in 1951 and convicted of conspiracy; both were executed in 1953 — the first civilians executed for espionage in the country — a decision that remains the subject of intense debate.

Before her involvement in the case, Ethel worked as a secretary and took part in labor movements and the Young Communist League, where she met Julius. In the trial, the key witness was her brother, David Greenglass, whose testimony implicated Ethel in typing notes related to nuclear projects. Decoded Soviet cables and reports later corroborated Julius’s espionage activities, but the precise extent of Ethel’s participation remains disputed.

The episode took place against a backdrop of growing tension between the United States and the Soviet Union after the war, when safeguarding nuclear secrets became a priority. The Rosenberg trial and execution shaped debates about justice, national security, and the excesses of anti-communism, leaving a lasting impact on discussions of civil rights and judicial procedure.