Final answer:
Mali's transformation into a central Islamic kingdom is attributed to the conversions of Sundiata Keita's successors, including his grandnephew Mansa Musa, who is noted for his devout faith and pilgrimage to Mecca.
Step-by-step explanation:
We know that Mansa Uli, the son of Sundiata Keita, converted to Islam because the historical records relate the conversion of Sundiata's successors to Islam, which ultimately made Mali the largest Islamic kingdom in West Africa. The recorded conduct of Mansa Musa, who is Sundiata Keita's grandnephew and arguably referred to when mentioning Sundiata's 'son', given his role in succession and prominence in the empire's history, illustrates the deepening Islamic influence. Mansa Musa's famous pilgrimage to Mecca, which was accompanied by extravagant displays of wealth and generosity, was documented by scribes such as al-Omari and reflected a devout Muslim faith. Mali's wealth and Islamic influence attracted scholars and jurists from across the Islamic world, who contributed to the empire's reputation as a hub of Islamic scholarship and learning.
It is important to note that while Mansa Uli is not a widely recognized historical figure compared to Mansa Musa, the inquiry about Sundiata Keita's son converting to Islam can be understood within the context of the generational shift toward Islam among the rulers of the Mali Empire.