Indian North Agulhas Current

The northern Agulhas waters belong to the western Indian Ocean, beside the African approaches to an old network of seaborne commerce. Along East Africa, Swahili towns maintained trading routes toward India and China before Portuguese ships rounded the continent. Muslim merchants and missionaries had helped spread Islam along these shores, while commercial contacts introduced Arabic writing and other cultural practices.

Vasco da Gama passed the Cape of Good Hope in 1497 and encountered this established coastal world on his voyage to India. Local navigational knowledge helped make the crossing possible, including a Gujarati pilot obtained through the ruler of Malindi. Portuguese expeditions after 1500 attacked and colonized African coastal cities, changing the balance of power around the sea.

Their imperial trade also expanded forced movement of people, with Mozambique becoming a origin of enslaved labour. Later Dutch, English and French networks added further routes and island colonies. The offshore passage thus belonged to a history of African cities, skilled pilots and commercial exchange, increasingly reshaped by European naval violence and colonial demands.