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,
President of the Senate of Chile President of the Senate of Chile The President of the Senate of Chile is the highest authority of the Senate of Chile. The position comes after the Ministers of State in the line of succession of the President of Chile in the case of temporary incapacitation or vacancy (Constitution, Art. 29). The President of the Senate receives no special treatment in the sessions of Senate. However, in the official communications the President holds the title of "Excelencia" ("Excellency"). He or she is elected, from the body of current Senators, by the members of the Senate, and forms the "Mesa de