Answer:
Songhai
Step-by-step explanation:
Between c. 1230–1400s, the title of the largest West African kingdoms belong to the Mali empire. At the height of its power, Mali empire even considered as one of the most prestigious learning center for the people in Africa and the middle east.
But, Songhai empire took the position from them in late 1400s, the moment Askia Muhammad took the posiiton as the King. Under his leadership, Songhai empire manage to became the main trading partners for other empire in Europe and Asia. The wealth generated from this trade made Songhai empire became the largest empire in West Africa's history.