According to the 16th-century explorer, Leo Africanus indicates that the native inhabitants of the Mogadishu polity were of the same origins as the denizens of the northern people of Zeila the capital of Adal Sultanate. They were generally tall with an olive skin complexion, with some being darker. They would wear traditional rich white silk wrapped around their bodies and have Islamic turbans and coastal people would only wear sarongs, and wrote Arabic as a lingua franca. Their weaponry consisted of traditional Somali weapons such as swords, daggers, spears, battle axe, and bows, although they received assistance from its close ally the Ottoman Empire and with the import of firearms such as muskets and cannons. Most were Muslims, although a few adhered to heathen bedouin tradition; there were also a number of Abyssinian Christians further inland. Mogadishu itself was a wealthy, and well-built city-state, which maintained commercial trade with kingdoms across the world. The metropolis city was surrounded by walled stone fortifications.