Portuguese language in Africa as a second language, in countries like Angola and Mozambique, where Portuguese is an official language, but also in countries like South Africa and Senegal, thanks to migrants coming from Portuguese speaking countries. Some statistics claim that there are over 30 million Portuguese speakers in the continent. Like French and English, Portuguese has become a post-colonial language in Africa and one of the working languages of the African Union (AU) and the Southern African Development Community (SADC). Portuguese co-exists in Guinea-Bissau, Cape Verde, and São Tomé and Principe with Portuguese-based creoles (Upper Guinea and Gulf of Guinea Creoles), and in
German South West Africa territory was administered as South West Africa under a League of Nations mandate. It became independent as Namibia in 1990. Initial European contact with the areas which would become German South West Africa came from traders and sailors, starting in January 1486 when Portuguese explorer Diogo Cão, possibly accompanied by Martin Behaim, landed at Cape Cross. However, for several centuries, European settlement would remain limited and temporary. In February 1805 the London Missionary Society established a small mission in Blydeverwacht, but the efforts of this group met with little success. In 1840 the London Missionary Society transferred all of its