The Union of Soviet Writers (Soiuz Sovetskikh pisatelei) was established in April 1932. All other exisiting writers’ groups were thereupon banned (including the arch-loyalist Russian Association of Proletarian Writers, or “RAPP”). This step was brought in by a Communist Party Central Committee resolution for the “reconstruction of literary and artistic organisations”. Socialist Realism was promulgated as the one essential artistic method. Branches of the Union were established in all Soviet republics, provinces and main towns. Parallel unions in the other branches of artistic activity were set up soon afterwards.
The first president of the Soviet Writers’ Union was Maxim Gorky. …
Cornwell, Neil. "The Union Of Soviet Writers (1932-1991)". The Literary Encyclopedia. First published 06 September 2005
[https://www.litencyc.com/php/stopics.php?rec=true&UID=1583, accessed 21 March 2019.]