This file is from a shared repository and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionKanem-Bornu 1650.svg
English: Map of the Kanem-Bornu Empire in the Sahel zone around Lake Chad in the 17th and 18th century.
Sources: "Eine Studie über Entstehung und Wandel eisenzeitlich-historischer Fürstentümer im
südlichen Tschadbecken (7./ 8. Jahrhundert n. Chr. bis ca. 1925)" by Detlef Gronenborn, "Al-Qasaba et d'autres villes de la route centrale du Sahara" by Dierk Lange and Silvio Berthoud, "Origin and Meaning of Damagaram" by Babagana Abubakar and other documents.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.