be home to a number of Hanafis, but no research has been conducted as to how large the Hanafi population was in premodern Zeila. Through extensive trade with Abyssinia and Arabia, Adal attained its height of prosperity during the 14th century. It sold incense, myrrh, slaves, gold, silver and camels, among many other commodities. Zeila had by then started to grow into a huge multicultural metropolis, with Somalis (Predominantly), Afar, Harari, and even Arabs and Persian inhabitants. The city was also instrumental in bringing Islam to the Oromo and other Ethiopian ethnic groups. In 1332, the Zeila-based King of Adal was slain in a military campaign aimed at halting the Abyssinian Emperor Amda Seyon's march toward the city. When the last Sultan of Ifat, Sa'ad ad-Din II, was also killed by Dawit I of Ethiopia in Zeila in 1410, his children escaped to Yemen, before later returning in 1415. In the early 15th century, Adal's capital was moved further inland to the town of Dakkar, where Sabr ad-Din II, the eldest son of Sa'ad ad-Din II, established a new base after his return from Yemen. Adal's headquarters were again relocated the following century, this time to Harar. From this new capital, Adal organised an effective army led by Imam Ahmad ibn Ibrahim al-Ghazi (Ahmad "Gurey" or "Gran") that invaded the Abyssinian empire. This campaign is historically known as the Conquest of Abyssinia (Futuh al Habash). During the war, Imam Ahmad pioneered the use of cannons supplied by the Ottoman Empire, which he imported through Zeila and deployed against Abyssinian forces and their Portuguese allies led by Cristóvão da Gama. Some scholars argue that this conflict proved, through their use on both sides, the value of firearms like the matchlock musket, cannons and the arquebus over traditional weapons. I. M. Lewis gives an invaluable reference to an Arabic manuscript on the history of the Gadabuursi Somali. ‘This Chronicle opens’, Lewis tells us, ‘with an account of the wars of Imam ‘Ali Si’id (d. 1392) from whom the Gadabuursi today trace their descent, and who is described as the only Muslim leader fighting on the western flank in the armies of Se’ad ad-Din, ruler of Zeila. I. M. Lewis (1959) states: "Further light on the Dir advance and Galla withdrawal seems to be afforded by an Arabic manuscript describing the history of the Gadabursi clan. This chronicle opens with an account of