the coast. Most of the trans-Saharan trade was now diverted east to Bornu. Expensive equipment purchased with gold had to be sent across the Sahara, an unsustainable scenario. The Moroccans who remained married into the population and were referred to as Arma or Ruma. They established themselves at Timbuktu as a military caste with various fiefs, independent from Morocco. Amid the chaos, other groups began to assert themselves, including the Fulani of Futa Tooro who encroached from the West. The Bambara Empire, one of the states that broke from Songhai, sacked Gao. In 1737, the Tuareg massacred the Arma. Sokoto Caliphate The Fulani were migratory people. They moved from Mauritania and settled in Futa Tooro, Futa Djallon, and subsequently throughout the rest of West Africa. By the 14th century CE, they had converted to Islam. During the 16th century, they established themselves at Macina in southern Mali. During the 1670s, they declared jihads on non-Muslims. Several states were formed from these jihadist wars, including Bundu, the Imamate of Futa Toro, the Imamate of Futa Jallon, and the Massina Empire. The most important of these states was the Sokoto Caliphate or Fulani Empire. In the city of Gobir, Usman dan Fodio (1754–1817) accused the Hausa leadership of practising an impure version of Islam and of being morally corrupt. In 1804, he launched the Fulani War as a jihad among a population that was restless about high taxes and discontented with its leaders. Jihad fever swept northern Nigeria, with strong support among both the Fulani and the Hausa. Usman created an empire that included parts of northern Nigeria, Benin, and Cameroon, with Sokoto as its capital. He retired to teach and write and handed the empire to his son Muhammed Bello. The Sokoto Caliphate lasted until 1903 when the British conquered northern Nigeria. Forest empires and states Akan Kingdoms and emergence of Asante Empire The Akan speak a Kwa Language. The speakers of Kwa languages are believed to have come from East/Central Africa, before settling in the Sahel. By the 11th century, the Akan Kingdom of Bonoman (Bono State) was established. Bonoman was a trading state created by the Bono people. Bonoman was a medieval Akan kingdom in what is now the Brong-Ahafo Region of Ghana and eastern Ivory Coast. It is generally accepted as the origin of the subgroups of the Akan people who migrated out of the state at various