Answer:
Sunni Ali the Great was the founder of Songhai.
Step-by-step explanation:
Sunni Ali was an African monarch who began the imposing expansion of the Songhai Empire. His first great conquest (1468) was the city of Timbuktu, one of the main sources of hope for the decaying Mali empire. A constant siege of seven years in the city of Yenne, resulted in the taking of it in 1473. Sunni Ali spent most of his reign in rejecting attacks on the empire by the Dendi, the Fulani, the Mossi and the Tuareg. Very little is known about his administration, but some Arab chroniclers defined him as a cruel and capricious tyrant.