Evidence for trade within the Sahara only appears in the Middle Ages. It was onto this regional trade system within the Sahara that long-distance trade across the Sahara was grafted, but the former remained more important than the latter.
www.africanhistoryextra.com/p/the-camel-...
www.africanhistoryextra.com
The Camel has an almost mythical place in the lore of the desert.