Claim: The League of Communists of Yugoslavia, formed in 1919, is occupied mostly by Serbs occupying 51.77%, followed by Hungarians with 18.13%.
Evidence: The League of Communists of Yugoslavia (Serbo-Croatian: Savez komunista Jugoslavije / Савез комуниста Југославије), known until 1952 as the Communist Party of Yugoslavia, was the founding and ruling party of SFR Yugoslavia. 1919
Vukovar Congress in 1920 Serb 51.77 Croat 18.13 Hungarian 1.21