Corduene (; ; ) was an ancient historical region, located south of Lake Van, present-day eastern Turkey. Many believe that the Kardouchoi—mentioned in Xenophon’s Anabasis as having given his 10,000 troops a mauling as they retreated from Persia in 401 BCE—were the ancestors of the Kurds. According to the 1911 Encyclopædia Britannica, Gordyene is the ancient name of the region of Bohtan (now Şırnak Province). It is mentioned as Beth Qardu in Syriac sources and is described as a small vassal state between Armenia and Parthian Empire in the mountainous area south of Lake Van in modern Turkey Corduene must also be sought on the left bank of the Tigris. Corduene is documented as a fertile mountainous district, rich in pasturage. The Kingdom of Gordyene emerged from the declining Seleucid Empire and for most of its history, it was a province of the Roman Empire and acknowledged the sovereignty of Rome. From 189 to 90 BC, it enjoyed a period of independence. The people of Gordyene were known to have worshiped the Hurrian sky god Teshub. Origins According to Arshak Safrastian, the Medes and Scythians mentioned in classical Greek literature existed only as preconceived notions. Equating the Carduchi with the Gutians, he adds that the moment the Ten Thousand began to skirt the lower slopes of the Hamrin Mountains, they were in contact with the tribes of Gutium which are presented here as Medes or Scythians. A direct Gutian connection, however, is unlikely, as the Gutians were not Indo-Iranians and only known to have lived in southern Mesopotamia. Carduchoi in Xenophon A people called the Carduchoi () are mentioned in Xenophon's Anabasis. They inhabited the mountains north of the Tigris in 401 BC, living in well-provisioned villages. They were enemies to the king of Persia, as were the Greek mercenaries with Xenophon, but their response to thousands of armed and desperate strangers was hostile. They had no heavy troops who could face the battle-hardened hoplites, but they used longbows and slings effectively, and for the Greeks the "seven days spent in traversing the country of the Carduchians had been one long continuous battle, which had cost them more suffering than the whole of their troubles at the hands of the king [of Persia] and Tissaphernes put together." They have been also mentioned as Gordi by Hecataeus of Miletus c. 520 BC. Korduk' in Armenian sources The region of Corduene was