Julius and Ethel Rosenberg

Julius and Ethel Rosenberg were an American married couple convicted of conspiring to commit espionage for the Soviet Union and executed in 1953. Their case became a major Cold War controversy over evidence, justice, and political loyalty.

Rosenberg espionage trial: The 1951 federal trial that convicted Julius and Ethel Rosenberg of conspiracy to commit espionage. Its testimony and verdict established the criminal case against the couple.
Ruth Greenglass: David Greenglass’s wife, whose testimony implicated Ethel Rosenberg in the alleged espionage conspiracy. Her testimony supplied a disputed account of Ethel’s participation.
Manhattan Project: The U.S.-led wartime program that developed the first atomic bombs. Information from its laboratories was among the secrets at issue in the prosecution.
Julius Rosenberg's Soviet espionage: Julius Rosenberg’s work as a Soviet intelligence agent, documented in declassified records and testimony. Evidence of Julius’s recruitment and activity is substantially stronger than evidence against Ethel.
David Greenglass: A machinist at Los Alamos who testified that he passed atomic information to the Soviet Union through Julius Rosenberg. His testimony implicated both Rosenbergs and became central to the trial.
Morton Sobell: An American engineer convicted in 1951 of conspiring with Julius Rosenberg to commit espionage. His conviction linked the Rosenbergs’ case to a broader alleged spy network.
Soviet atomic bomb project: The Soviet Union’s program to develop and test its first nuclear weapons. Espionage accelerated the program, forming the case’s geopolitical backdrop.
Ethel Rosenberg's role in espionage: The disputed extent of Ethel Rosenberg’s participation in her husband’s espionage activities. Later evidence and changed testimony cast doubt on the prosecution’s portrayal of her role.
Harry Gold: An American chemist who couriered scientific and military information to Soviet intelligence. His testimony connected the Rosenbergs’ network to Soviet espionage.
Roy Cohn: An American prosecutor who helped secure the Rosenbergs’ convictions and later became a political lawyer. He was a prominent member of the prosecution team.

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