1854, J. Cumming, "Signs of the Times: The Moslem and His End, the Christian and His Hope", "The Ottoman Empire", The Church of England Quarterly Review..., Vol. XXXVI (New Ser. Vol. II), p. 189:
Seljouk was the prime minister of SultânBighoû, sovereign of Kipjak; he established himself, with his tribe, in the countries of Samarcand and Bokhara, where they became converted to the religion of Islâm.