Which songhai king greatly expanded its empire?

The Songhai king who greatly expanded the empire was Sunni Ali. He ruled from 1464 to 1492 and is known for his military conquests, which significantly enlarged the empire, particularly through campaigns that captured key trade cities like Timbuktu and Djenne. Sunni Ali's leadership established Songhai as one of the largest empires in West Africa, thriving on trade and cultural exchange. His legacy set the foundation for the empire's influence in the region.