Urbanism is, as a general rule, a defining feature of West African civilizations. This is not to state that
the village was the principal abode of most people. Rather, it is to state that the cities, like those of ancient Greece and pre-imperial Roman Italy, were the central entities around which villages politically, socially and religiously orbited.
Along the Niger river and near its related tributaries,
major cities such as Djenne, Timbuktu, Gao, Kumbi Selah slowly arose, beginning in the third century B.C. to the latter part of the 8th century A.D., using the river and its tributaries as an aquatic highway to transport goods. These cities had their own unique style of Western Sudanic architecture, that of adobe
mud style buildings.
Further eastward, in the area near Lake Chad, the
Hausa city states (Daura, Katsina, Zazzau, Gobir, Kano, Rano, and Biram )arose around the 10th century A.D.
Southward, in what is today southern Nigeria, there arose the
Yoruba city states, the chief of which was Ile Ife (founded circa 600 B.C.)