The region came under the domination of the Khanate of Kazan in the 15th century. The khanate was conquered by Ivan the Terrible in 1552 and abolished in 1708. This period was marked by settlement of the area by Russians and attempts at conversion to Orthodox Christianity, provoking a number of rebellions among the Tatars and neighbouring groups. In the late 18th and 19th centuries industry developed, economic conditions improved and Tatars achieved more equal status with Russians. However, Tatar national consciousness was growing, and upon the October Revolution of 1917, national institutions were established and independence declared as the Idel-Ural State. After several years of civil war the Soviet government suppressed independence and established the Tatar Autonomous Soviet Socialist Republic within the Soviet Union.