Rulers and Dynasties of Persia (Iran)

The following is a timetable of rulers and dynasties that ruled over Iran. It has been tried to name all rulers of Iran from the period of the Medesto the present. The dates mentioned are the period that the person inquestion ruled over (some part of ) Iran. Therefore you will also find different persons during the same time period. They probably ruled over different parts or were rival pretenders to the throne.