Demographics
A large part of the region's population included Turkic groups such as Suars, Barsil, Bilars, Baranjars and part of Burtas (by ibn Rustah). Modern Chuvashes descend from Suars and Kazan Tatars descend from the Volga Bulgars. Another part comprised Finnic and Magyar (Asagel and Pascatir) tribes, from which Bisermäns probably descend. Ibn Fadlan refers to Volga Bulgaria as Sakaliba which is a general Arabic term for the people of Volga Bulgaria and it is probably related to ethnic name Scythian (or Saka in Persian).
Read more about this topic: Volga Bulgaria