1920 in Yugoslavia

1920 treaty between Italy and Kingdom of Serbs, Croats and Slovenes

1920 plebiscite in the southern portion of Carinthia

thumb|Copy of Obznana The Obznana (; Serbo-Croatian for "Proclamation") was a government decree that was issued on 29 December 1920 in the Kingdom of Serbs, Croats and Slovenes (Yugoslavia), which mandated closure of all organizations, trade unions and newspapers associated with the Communist Party of Yugoslavia (CPY). It also banned any kind of communist propaganda, stipulating that any person accused of "bolshevik propaganda" should be fired from a public job.