History of Iran

The ancient nation of Iran, historically known to the West as Persia and once a major empire in its own right, has been overrun frequently and has had its territory altered throughout the centuries. Invaded by Arabs, Seljuk Turks, Mongols, and others--and often caught up in the affairs of larger powers--Iran has always reasserted its national identity and has developed as a distinct political and cultural entity. Archeological findings have placed knowledge of Iranian prehistory at middle paleolithic times (100,000 years ago). The earliest sedentary cultures date from 18,000-14,000 years ago. The sixth millennium B.C. saw a fairly sophisticated agricultural society and proto-urban population centers. Many dynasties have ruled Iran, the first of which was under the Achaemenians (559-330 B.C.), a dynasty founded by Cyrus the Great. After the Hellenistic period (300-250 B.C.) came the Parthian (250 B.C.-226 A.D.) and the Sassanian (226-651) dynasties.

The seventh century Arab-Muslim conquest of Iran was followed by conquests by the Seljuk Turks, the Mongols, and Tamerlane. Iran underwent a revival under the Safavid dynasty (1502-1736), the most prominent figure of which was Shah Abbas. The conqueror Nadir Shah and his successors were followed by the Zand dynasty, founded by Karim Kahn, and later the Qajar (1795-1925) and the Pahlavi dynasties (1925-1979). Modern Iranian history began with a nationalist uprising against the Shah (who remained in power) in 1905, the granting of a limited constitution in 1906, and the discovery of oil in 1908.