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
History of Iran are further testament to that. The two main Neolithic Iranian settlements were the Zayandeh River Culture and Ganj Dareh. Parts of what is modern-day northwestern Iran was part of the Kura–Araxes culture (circa 3400 BC—ca. 2000 BC), that stretched up into the neighboring regions of the Caucasus and Anatolia. Susa is one of the oldest-known settlements of Iran and the world. Based on C14 dating, the time of foundation of the city is as early as 4395 BC, a time that goes beyond the age of civilization in Mesopotamia. The general perception among archeologists is that Susa was an extension