I) From the Ancient Times to 650 CE

* Iran Before Iranians
* Iranians Before Iran
* The Empire of the Medes
* The Achaemenid Empire
* The Seleucid and the Arsacid Empires
* The Sassanian Empire

II) From Islam to the Safavids

* The Islamic World Empire
* Independent Iranian Kingdoms
* The Turkic Empires
* The Mongols
* Tiimur and His Successors

III) From Safavids to Modern Iran

* The Safavid Empire
* Afshar and Zand Dynasties
* The Qajars
* The Pahlavis to 1941

source:iranologie.com