The eighth largest state by population, residents of Jigawa State are predominantly of Hausa or Fulani background. The vast majority of residents of Jigawa State are Muslim, and is one of the twelve states in the country to be governed by Sharia law. Jigawa State is famous for the "Dutsen Habude" cave paintings in the town of Birnin Kudu, which have been dated back to the Neolithic period. The town of Hadejia (formerly "Biram") is notable as being one of the traditional "seven true Hausa states".