Government of the Islamic Republic of Iran world. The Islamic Republic of Iran created shortly after the Islamic Revolution. The first major demonstrations with the intent to overthrow the Shah Mohammad Reza Pahlavi began in January 1978, with a new, Islam-based, theocratic Constitution being approved in December 1979, ending the monarchy. The Shah fled Iran in January 1979 after large strikes and demonstrations against him and his regime paralyzed the country. Ayatollah Khomeini would return in February of the same year after a long period of exile, greeted in the capital of Tehran by several million Iranians. The final collapse of the Pahlavi dynasty occurred shortly after
Iran of the Iranians, surrounding themselves with a culture that was distinctively Iranian. By the 1500s, Ismail I of Ardabil established the Safavid Empire, with his capital at Tabriz. Beginning with Azerbaijan, he subsequently extended his authority over all of the Iranian territories, and established an intermittent Iranian hegemony over the vast relative regions, reasserting the Iranian identity within large parts of Greater Iran. Iran was predominantly Sunni, but Ismail instigated a forced conversion to the Shia branch of Islam, spreading throughout the Safavid territories in the Caucasus, Iran, Anatolia, and Mesopotamia. As a result, thereof, modern-day Iran is the only