In Old Persian inscriptions, Rhages appears as a province (Bistun 2, 10–18). From Rhages, Darius I sent reinforcements to his father Hystaspes, who was putting down the rebellion in Parthia (Bistun 3, 1–10).In some Middle Persian texts, Rhages is given as the birthplace of Zoroaster,although modern historians generally place the birth of Zoroaster in Khorasan. Rhages's modern-day inheritor, Ray, is a city located towards the southern end of Tehran, which has been absorbed into the metropolitan area of Greater Tehran.
