Julius and Ethel Rosenberg executed for espionage, 1953. On this day in 1953, Julius and Ethel Rosenberg, who were convicted of conspiring to pass U.S. atomic secrets to the Soviets, are executed at Sing Sing Prison in Ossining, New York. Both refused to admit any wrongdoing and proclaimed their innocence right up to the time of their deaths, by the electric chair. The Rosenbergs were the first U.S. citizens to be convicted and executed for espionage during peacetime and their case remains controversial to this day. Julius Rosenberg was an engineer for the U.S. Army Signal Corps who was born in New York on May 12, 1918. His wife, born Ethel Greenglass, also in New York, on September 28, 1915, worked as a secretary. The couple met as members of the Young Communist League, married in 1939 and had two sons. Julius Rosenberg was arrested on suspicion of espionage on June 17, 1950, and accused of heading a spy ring that passed top-secret information concerning the atomic bomb to the Soviet ...