Oral traditions of the ruling Abrade (Aduana) clan relate that Akans originated from ancient Ghana. They migrated from the north, they went through Egypt and settled in Nubia (Sudan). Around 500 AD (5th century), due to the pressure exerted on Nubia by the Axumite kingdom of Ethiopia, Nubia was shattered, and the Akan people moved west and established small trading kingdoms. These kingdoms grew, and around 750 AD the Ghana Empire was formed. The Empire lasted from 750 AD to 1200 AD and collapsed as a result of the introduction of Islam in the Western Sudan, and the zeal of the Muslims to impose their religion, their ancestors eventually left for Kong (i.e. present day Ivory Coast). From Kong they moved to Wam and then to Dormaa (both located in present-day Brong-Ahafo region). The movement from Kong was necessitated by the desire of the people to find suitable savannah conditions since they were not used to forest life. Around the 14th century, they moved from Dormaa South Eastwards to Twifo-Hemang, North West Cape Coast. This move was commercially motivated. The kingdom of Bonoman (or Brong-Ahafo) was established as early as the 12th century. Between the 12th and 13th centuries a gold boom in the area brought wealth to numerous Akans.