Read this: In the classical era, several ancient city-states such as Opone, Essina, Sarapion, Nikon, Malao, Damo and Mosylon near Cape Guardafui, which competed with the Sabaeans, Parthians and Axumites for the wealthy Indo-Greco-Roman trade, also flourished in Somalia.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): What trade did the ancient Somalis and others compete for?
Indo-Greco-Roman