Demographics of Chile helps explain this relative lack of differentiation, which was maintained by the national reach of radio, and now television, which also helps to diffuse and homogenize colloquial expressions. There are several indigenous languages spoken in Chile: Mapudungun, Quechua, Aymara and Rapa Nui. After the Spanish invasion, Spanish took over as the lingua franca and the indigenous languages have become minority languages, with some now extinct or close to extinction. German is spoken to a great extent in southern Chile, either in small countryside pockets or as a second language among the communities of larger cities. Through initiatives such as the
Official language the country had four official languages—Serbo-Croatian, Slovene, Albanian and Macedonian. Serbo-Croatian was used as a "lingua franca" for mutual understanding and was also the language of the military. When Croatia declared independence (1991) it defined its official language as Croatian, and Serbia likewise defined its official language as Serbian. Bosnia-Herzegovina defined three official languages: Bosnian, Croatian, and Serbian. From the linguistic point of view, the different names refer to national varieties of the same language, which is known under the appellation of Serbo-Croatian. It is said by some that the Bosnian government chose to define three languages to reinforce ethnic