Romansh language the Schamserberg. In the Surmiran region, it is the main language in the Surses region, but no longer widely spoken in the Albula Valley. In the Upper Engadine valley, it is a habitually spoken language for 30.8% and the language of best command for 13%. However, most children still acquire Romansh through the school system, which has retained Romansh as the primary language of instruction, even though Swiss German is more widely spoken inside the home. In the Lower Engadine, Romansh speakers form the majority in virtually all municipalities, with 60.4% declaring Romansh as their language of best command in
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,