The Sokoto Caliphate was by far the largest and most successful legacy of Fulani power in Western Africa. It was the largest, as well as the most well-organized, of the Fulani Jihad states. Throughout the 19th century, Sokoto was one of the largest and most powerful empires in West Africa until 1903, when defeated by European colonial forces. The Sokoto Caliphate included several emirates, the largest of which was Adamawa, although the Kano Emirate was the most populated. Others included, but are not limited to: Gombe Emirate, Gwandu Emirate, Bauchi Emirate, Katsina Emirate, Zazzau Emirate, Hadejia Emirate, and Muri Emirate.