Purim
There is a tale in the Hasidic Chabad movement that supposedly Joseph Stalin died as a result of some metaphysical intervention of the seventh Chabad leader, Rabbi Menachem Mendel Schneerson, during the recitation of a discourse at a public Purim Farbrengen. Stalin was suddenly paralyzed on 1 March 1953, which corresponds to Purim 1953, and died 4 days later. Due to Stalin's death, nationwide pogroms against Jews throughout the Soviet Union were averted, as Stalin's infamous doctors' plot was halted.
Stalin and antisemitism
Nonetheless, Stalin began a new purge with repressing his wartime allies, the Jewish Anti-Fascist Committee. In January 1948, Solomon Mikhoels was assassinated on Stalin's personal orders in Minsk. His murder was disguised as a hit-and-run car accident. Mikhoels was taken to MGB dacha and killed, along with his non-Jewish colleague Golubov-Potapov, under supervision of Stalin's Deputy Minister of State Security Sergei Ogoltsov. Their bodies were then dumped on a road-side in Minsk.