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 at the 2016 Summer Olympics Zambia at the 2016 Summer Olympics Zambia competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's thirteenth appearance at the Summer Olympics, although it marked its official debut in 1964 under the name "Northern Rhodesia". Zambia missed the 1976 Summer Olympics in Montreal, because of its partial support to the African boycott. The National Olympic Committee of Zambia (NOCZ) sent a team of seven athletes, five men and two women, to compete in four different sports at the Games, matching its roster size with London 2012. The Zambian