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 a rebellion in Parthia (Bistun 3, 1–10).[20] Some Middle Persian texts give Rhages as the birthplace of Zoroaster, although modern historians generally place the birth of Zoroaster in Khorasan Province.