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,
Official languages of Puducherry recognized by The Pondicherry Official Language Act, 1965 (Act No. 3 of 1965) which makes no mention of French (but also not officially denying it ) establishes that ""the Tamil language shall [...] be the language to be used for all or any of the official purposes of the Union Territory". It states that "Provided that the Administrator may by like Notification, direct that in the case of Mahe area, the Malayalam language, and in the case of Yanam area, the Telugu language may be used for such official purposes and subject to such conditions as may be specified in