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,
Livingstone, Zambia non-black property, especially those of whites. Consequently, most of the remaining Northern Rhodesians left after an official policy of nationalisation in Zambia was announced. Some colonial civic buildings were destroyed and replaced with an African architecture, although Livingstone was used as a location for a 1950s Rhodesian town in the 1981 movie "The Grass is Singing" (based on the Doris Lessing novel of that name). . At the same time, a large infusion of cash from the British government to Zambia at independence was partially used in Livingstone. Livingstone suffered economic decline in the 1970s due in part to renationalisation