Iran: Polity Style: 1979-2023 before 11 Feb 1979 Mamālik-i Maḥrūsa-i Īrān | (God-)Protected Realms of Iran [1] 5 Feb 1979 - 1 Apr 1979 Īrān 1 Apr 1979 Iran is proclaimed an Islamic republic in accordance with a declaration made by the Leader of the Revolution in Qom on 1 Apr 1979 (Book of Light, 6:452-454) 1 Apr 1979 - Jumhūr-i Islāmī-i Īrān (جمهوری اسلامی ایران) | Islamic Republic of Iran [1] Later also in official use: Kishwar-i Shāhanshāh-i Īrān | Empire of Iran (literally: King-of-King's Country of Iran) Last updated on: 08 Sep 2021 00:36:00