The generally accepted identification of the Qipčaqs, Comans, Cuns and Polovcians can be questioned in light of the evidence provided by the most informed Muslim authors of the 11th–12th centuries. Passages from the works of al-Marwazī, al-Bīrūnī and Mahmūd al-Kāshgharī allow us to suggest that the Qipčaq invasion of the 11th century was the result of a Transeurasian migration of three Turkish-speaking tribal groups: the Syr-Qipčaqs, the Basmyl-Šary-Polovcians, and the Cun-Comans. Their unification under the general name of Qipčaq comes from a historical tradition determined by the confederations themselves.