Askia the Great and Songhay
Many people do not hear much of black rulership in Africa or around the world because in the west it can be a bit of a threat.
It can and does give confidence to blacks who once upon a time thought themselves only to be slaves.
However, allow me to introduce you to Muhammad Ture/Toure, who became more known as Askia Muhammad. He was known as a great Emperor of Songhai and his empire stretched from Lake Chad all the way to the Atlantic Ocean.
His rulership was said to be more expansive than Western Europe. His capital was Timbuctoo, where he formed many libraries, universities, and educational systems.