News of foreign authors are one of the most important sources in the study of the history of any people. Of particular importance are the testimonies of foreign writers for those periods of the history of the people when they did not yet have their own writing and, therefore, their own written historical sources. Adygs, Balkars, Karachais and other highlanders of the North Caucasus belong to those peoples who have been unwritten for a long period of their history, and therefore the news of foreign writers sometimes serve as the only source for the restoration of their ancient and medieval history.