Ngazidja

Ngazidja, or Grande Comore, is the largest of the Comorian islands, dominated by the volcanic heights of Karthala. Its communities developed amid maritime connections linking the East African coast, Madagascar and Arabia. The island was divided among several sultanates, each with its own rulers and settlements. Fresh water was scarce in places, so islanders stored rainwater and dug wells near the shore where seawater was filtered through sand.

The later city of Moroni lies here.