The 1st century AD Greek travelogue the "Periplus of the Erythraean Sea" first describes Azania based on its author's intimate knowledge of the area. Chapter 15 of the "Periplus" suggests that Azania could be the littoral area south of present-day Somalia (the "Lesser and Greater Bluffs", the "Lesser and Greater Strands", and the "Seven Courses"). Chapter sixteen describes the emporium of Rhapta, located south of the Puralean Islands at the end of the Seven Courses of Azania, as the "southernmost market of Azania". The "Periplus" does not mention any dark-skinned "Ethiopians" among the area's inhabitants. They only later appear in Ptolemy's "Geographia", but in a region far south, around the "Bantu nucleus" of northern Mozambique. According to John Donnelly Fage, these early Greek documents altogether suggest that the original inhabitants of the Azania coast, the "Azanians", were of the same ancestral stock as the Afro-Asiatic populations to the north of them along the Red Sea. Subsequently, by the 10th century AD, these original "Azanians" had been replaced by early waves of Bantu settlers.