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
Bicentennial of Chile were submitted in 2009, and were created by Andrea Barreda (Basic Education), Javiera Monreal (High School), Joshua Arevalo (Higher Education), and Patricio Díaz (Visual Artist). The Bicentennial stamp series was officially launched on October 15, 2009. On April 20, 2009, Correos de Chile launched a special issue of 15 stamps that were used for the centenary celebrations of Chile. The stamps, dating from 1910, bore the official logo of the Bicentennial, and were sold for 310 Chilean pesos (US$0.62). 30,000 copies were printed. A stamp with the official logo of the Bicentennial was also released. The Chilean Mint (Casa de