What was the name of the last great state to occupy the Niger River region in Africa prior to European arrival in the region?

Question

Quizplus · Accepted Answer

The Songhai Empire, also known as the Songhay Empire, was the last great state to occupy the Niger River region in Africa prior to European arrival in the region. The empire reached the height of its power in the late 15th and early 16th centuries, controlling a large part of West Africa, including parts of modern-day Mali, Niger, Nigeria, and Senegal.

What Was the Name of the Last Great State to Occupy