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–Turkey relations and Smyrna in western Anatolia. Igdir Province in what is Eastern Anatolia formed in fact part of Qajar Iran up to the outcome of the Russo-Persian War (1826-1828) and the ratified Treaty of Turkmenchay. Various empires based in what is now Turkey made inroads into what is now Iran, such as by the Byzantine Empire, and the Ottoman Empire. Iran's second major ethnic group is Azerbaijani which is a Turkic people, there also other Turkic peoples in Iran such as Turkmens and Qashqai people. Turks and Iranians share a common cultural heritage, known as the Turko-Persian tradition, which was a