Complex sentence: After the events of August 19--21,1991, Viktor became one of the initiators of the convocation of Congress communists of Russia and established him as a Russian communist of a working party (РКРП) in Ekaterinburg (November 1991).
Split into simpler sentences: After the events of August 19--21,1991, Tyulkin became an initiator of the convocation of Russian communists. This established him as supporter of a working party (РКРП) in Ekaterinburg (November 1991).