The article deals with changes in demographic situation at the Arabia peninsula that occurred in the course of a millenium and a half. Initially the peninsula had a dense Hebrew population. Displacement of Hebrew people began after their defeat in the war with the Ethiopian Axum state. The author relates the beginning of the massive persecution of Jews with the emergence of new religion, Islam. By mid-19th century Jews were exterminated in the peninsula, after rise of Wahhabism. This religious current accepts jihad as the only way for resolution of contradictions and applies this methods even to other Moslems, Shiites and Sunnities.