Trade across the Sahara linked people at considerable distances. Commercial exchanges also created meetings, journeys and relationships through which religious practices and ideas could travel. Muslim traders were among those who helped Islam spread into parts of West Africa.
Shared language, practices and social connections could support trust between traders. Conversion, however, was not one uniform event following a single route. Local rulers, communities and families shaped how beliefs were adopted and practised. A map of routes is a starting point for understanding those interactions.