The Seljuks originated from the Kinik branch of the Oghuz Turks,^[1]who in the 8th century lived on the periphery of the Muslim world, north of the Caspian Sea and Aral Sea in their Oghuz Yabgu State,^[2] in the Kazakh Steppe of Turkestan. During the 10th century, Oghuz had come into close contact with Muslim cities.^[3] When Seljuk, the leader of the Seljuk clan, had a falling out with Yabghu, the supreme chieftain of the Oghuz, he split his clan off from the bulk of the Oghuz Turks and set up camp on the west bank of the lower Syr Darya.