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,
Church of Central Africa Presbyterian – Synod of Zambia formed in 1899. This was composed of all of the mission stations and congregations established in northern Zambia. When the Synod was constituted in 1984, it was composed of 2 Presbyteries, 16 congregations and 4 ordained ministers. This group spread rapidly. According to the church's statistics as of August, 2010, the Zambia Synod had 67 congregations in 11 presbyteries and more than 65,000 members served by 58 ordained ministers and 8 evangelists. That means 1250 member per pastor, who serve the growing number of congregations. The Synod relocated in 2010 from Eastern Zambia to Lusaka. The official confessions are the