How did Islam spread among Sudanic peoples such as the Malinke, Hausa, Songhai, and Bornu?

Islam spread across the Sudanic region primarily through established trade and pilgrimage routes, facilitated by learned teaching-trading families such as the Kunta.1

Mechanisms of Spread

• Elite Conversion: Ruling elites typically adopted Islam first to leverage the Arabic language and Sharīʿah for political and commercial advantage, often without displacing indigenous religious practices.1
• Merchant Influence: Initially, Islam was spread by merchants who integrated themselves into existing urban and social frameworks.2
• Religious Orders: The arrival of Sufi brotherhoods, or tariqas (such as the Qādiriyyah), introduced organized groups of devout Muslims committed to creating a true Islamic society.2
• Militant Reform: When peaceful methods failed, reformist scholars encouraged jihad against rulers who were perceived as pagans or inadequate Muslims. This was notably employed by leaders like Muhammad I Askia in Songhai and Usman dan Fodio among the Fulani in Hausaland.13

In Kanem-Bornu, the state became Islamic following the conversion of the mai (king) Umme in the late 11th century. Over time, these regions developed distinctive local Islamic traditions while maintaining contact with broader Muslim centers in the Maghrib and Egypt.41