Acts 17:26, 27; Tatars are a Turkic people in Russia , the main population of Tatarstan . Number in Russia 5522 thousand people, including Tatarstan: 1765.4 thousand people , Bashkiria: 1120.7 thousand people, Udmurtia :110.5 thousand people, 47.3 thousand people in Mordovia , Mari Republic: 43.8 thousand people; Chuvashia: 35.7 thousand people, as well as areas of the Volga- Ural region , Western and Eastern Siberia and the Far East .