sentences:  It is believed to be the product of an ancestral nation that branched to create the Hausa, the people of Gwandara language, Biram, Kanuri, Nupe peoples, the Kwatarkwashi Culture of Tsafe or Chafe in present-day Zamfara State located to the North west of Nok is thought to be the same as or an earlier ancestor of the Nok.Nok's social system is thought to have been highly advanced.The Nok culture is considered to be the earliest sub-Saharan producer of life-sized Terracotta.