6 March 1967
On this day in 1967 Stalin’s daughter Svetlana Alliluyeva defects to the united States of America on the 14th anniversary of Stalin’s successor Georgy Malenkov taking over from Stalin as premier of the Soviet Union and First Secretary of the Communist Party.
Stalin’s daughter’s defection to the US served as a massive publicity coup for the US in the midst of the cold war. It was still more pointed as it occurred on the anniversary of her father being succeeded as Premier of the USSR by Georgy Malenkov. It also occurred, coincidentally, on the anniversary of the commencement of the Rosenberg espionage trial which commenced on 6 March 1951. The Rosenbergs were ultimately convicted and executed for selling atomic weapons secrets to the USSR.