Rare chart of Algoa Bay in South Africa, near Port Elizabeth.
The map shows the location of the factories of the Dutch East India Company and the Portuguese.
The Portuguese Crown had as one of its main goals in the Indian Ocean taking over the lucrative trade of Arab and Afro-Arabian merchants who plied routes between the East African coast and India. As they took over that trade in Africa, the Portuguese strengthened trading with Goa, their main trading point in India. The name Algoa means "to Goa", just as the port further north in present-day Mozambique, Delagoa means "from Goa" in Portuguese.