Islam was introduced during the 8th century, but unlike in the north it never really took hold outside of the major cities, and Hinduism remains the majority religion to this day. Deccan remained relatively immune to invasions by Greeks, Persians, Scythians, Turks, Mongols and other foreign peoples over the centuries, but in the late 18th century the region was conquered by the Kasi dynasty, which was of Bactrian origin.