Portuguese language in Africa more recent migrations of refugees (some of whom speak Portuguese) to neighbouring countries such as Democratic Republic of Congo, Namibia, Zambia and South Africa. Other migrations involved returning Afro-Brazilian ex-slaves to places such as Nigeria, Benin, Togo, Angola and Mozambique. There are also some returning white Portuguese African refugees and their descendants from Brazil, Portugal, and South Africa to their former African controlled territories, mostly to Angola (up to 500,000) and Mozambique (350,000), and most importantly, there is the arrival of Portuguese post-colonial expatriates in Angola in the recent years, because of Portugal's economic interests and the Angolan economic boom.
History of West Africa in this ancient volume clearly show the "Gum Coast", "Grain Coast", "Ivory Coast", and "Gold Coast". Malachy Postlethwayt writes "It is melancholy to observe that a country, which has near ten thousand miles sea-coast, and noble, large, deep rivers, should yet have no navigation; streams penetrating into the very center of the country, but of no benefit to it, innumerable people, without knowledge of each other, correspondence, or commerce." In the Scramble for Africa in the 1880s the Europeans started to colonise the inland of West Africa, they had previously mostly controlled trading ports along the coasts and rivers. Samory