The so-called Kingdom of the Congo or Congo Empire was an African region located in southwestern Africa in the territory that today corresponds to the north-west of Angola including Cabinda, the Republic of Congo, the western part of the Democratic Republic of Congo and the south-central part of the Gabon.
Many got attracted to Kongo because of the mines. There were quite a few rich gold mines at Sofala. They were also quite skilled at agriculture, carving, weaving, pottery and many other things.