Pedzisa mutsara unotevera: Iran Islamic Republic Day () iri Farvardin 12, inozivikanwa se "Ruz e Jomhuri ye Eslāmi". Zuva iri izororo renyika uye rehurumende muIran. Inoratidza zuva iro migumisiro ye
Kurume 1979 Iran Islamic Republic referendamu yakaziviswa. Mhedzisiro yakaziviswa yaive 98.2% yevhoti yekumisikidzwa kwedunhu reIslam mudunhu.