French language sole official language in the province of Quebec, being the mother tongue for some 7 million people, or almost 80% (2006 Census) of the province. About 95% of the people of Quebec speak French as either their first or second language, and for some as their third language. Quebec is also home to the city of Montreal, which is the world's 4th-largest French-speaking city, by number of first language speakers. New Brunswick and Manitoba are the only officially bilingual provinces, though full bilingualism is enacted only in New Brunswick, where about one third of the population is Francophone. French is
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,