Nevertheless, the general opinion has been that the Scyths were Iranian.
The inhabitants of the Kura valley consist principally of Iranian Tates and Talyshes, of Armenians and Lesghians, with Russians, Jews and Arabs.
The Caucasian races (except the Gregorians), together with the Turks and Tatars, are Mussulmans of the Sunnite sect (2,021,300), and the Iranian races mostly Mussulmans of the Shiite sect (884, too).
It was inhabited by an Iranian tribe, the Parthava of the inscriptions of Darius; the correct Greek form is HapOvaioc. Parthia became a province of the Achaemenian and then of the Macedonian Empire.
When about 255 B.C. Diodotus had made himself king of Bactria and tried to expand his dominions, the chieftain of a tribe of Iranian nomads (Dahan Scyths) east of the Caspian, the Parni or Aparni, who bore the Persian name Arsaces, fled before him into Parthia.