Romansh language 2000, and 77.4% declaring it as a habitually spoken language. Outside of the traditional Romansh language area, Romansh is spoken by the so-called "Romansh diaspora", meaning people who have moved out of the Romansh-speaking valleys. A significant number are found in the capital of Grisons, Chur, as well as in Swiss cities outside of Grisons. The current situation of Romansh is quite well researched. The number of speakers is known through the Swiss censuses, with the most recent having taken place in 2000, in addition to surveys by the Radio e Televisiun Rumantscha. The quantitative data from these surveys was
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,