Question: What years was this campaign of political repression in the Soviet Union occurring, during which Yakov Ganetsky was executed?
Sentence (from "Yakov Ganetsky"): Yakov Stanislavovich Ganetsky (also transliterated as Hanecki), also known as Jakub Fürstenberg (Fuerstenberg) (15 March 1879 — 26 November 1937) was a prominent Old Bolshevik and close associate of Vladimir Lenin, famous as one of the financial wizards who arranged, through his close working relationship with Alexander Parvus, the secret German funding that saved the Bolsheviks.
Relevant evidence: Yes