摘要：This article deals with the boundaries of Borno as perceived by nineteenth century travellers. Indeed, numerous European travellers such as Denham, Barth or Nachtigal tried to reach the central African kingdom for three main reasons: commerce, diplomacy and science. In addition, the Bornuese perception of the boundaries is also studied through the testimony of Aden Mahamma, a pilgrim from Borno. Using published narratives, reports, articles and maps, this article argues that conceptions of boundaries existed in the travellers. narratives as well as in the Bornuese mentalities. Admittedly, the different travellers had a Eurocentric perception of Bornu and conceived Bornuese boundaries as a mixture between lines and undefined zones; however, the Bornuese seem to have conceived their own territory clearly and had a sense of belonging to a specific territory demarcated by boundaries
