The Chuvash people may be a remnant of the Volga Bulgars .
Another group went up the Volga to near Kazan and founded Volga Bulgaria which adopted Islam in 922 and lasted until the Mongol conquest .
The Chuvash people may be a remnant of the Volga Bulgaria   .
Another group went up the Volga to near Kazan and founded Volga Bulgaria which adopted Islam in 922 and lasted until the Mongol conquest .