Original sentence: Several international organizations sposored by Comintern:.The Comintern was officially dissolved on May 15 1943
Edited sentence: It was made official by the First Congress of the Comintern.Several international front organizations were set up by Comintern:.The Comintern was officially dissolved on May 15 1943, by Stalin, because it became dominated by revisionists.The split was initiated by the Russian Bolsheviks, who adopted the name "Communists"