A complex group of people which has urban development, organization of people by the elites, a communication style unique to them, and domination of the local natural environment.
Civilizations are located in one place, non-centralized nomadic tribes are not considered as a civilization.
Civilizations generally have a social hierarchical structure with the elite at the top and the workers at the bottom.
The mosque is located in the city of Djenne, Mali, on the flood plain of the Bani River. The first mosque on the site was built around the 13th century, but the current structure dates from 1907
