Due partly to its multilingualism and its colonial past, a substantial proportion of the world's creole languages are to be found in Africa. Some are based on Indo-European languages (e.g. Krio from English in Sierra Leone and the very similar Pidgin in Nigeria and parts of Cameroon, Cape Verdean Creole in Cape Verde and Guinea-Bissau Creole in Guinea-Bissau and Senegal both from Portuguese, Seychellois Creole from French in the Seychelles, or Mauritian Creole in Mauritius); some are based on Arabic (e.g., Juba Arabic in the southern Sudan, or Nubi in parts of Uganda and Kenya); some are based on local languages (e.g., Sango, the main language of the Central African Republic); while in Cameroon a creole based on French, English and local African languages known as Camfranglais has started to become popular.