Official language to the government in their native languages. In countries that do not formally designate an official language, a "de facto" national language usually evolves. English is the most common official language, with recognized status in 51 countries. Arabic, French, and Spanish are also widely recognized. An official language that is also an indigenous language is called "endoglossic", one that is not indigenous is "exoglossic". An instance is Nigeria which has three endoglossic official languages. By this the country aims to protect the indigenous languages although at the same time recognising the English language as its lingua franca. Around 500 BC,
Zambia tribal identities are nested within the main language groups. Immigrants, mostly British or South African, as well as some white Zambian citizens of British descent, live mainly in Lusaka and in the Copperbelt in northern Zambia, where they are either employed in mines, financial and related activities or retired. There were 70,000 Europeans in Zambia in 1964, but many have since left the country. Zambia has a small but economically important Asian population, most of whom are Indians and Chinese. There are 13,000 Indians in Zambia. This minority group has a massive impact on the economy controlling the manufacturing sector.