Although the Castilian (Spanish) language is a mainly American, are spoken on six continents, but in some form of residual almost. In America, it is official in Argentina, Bolivia, Chile, Colombia, Costa Rica, Cuba, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Puerto Rico, Dominican Republic, Uruguay and Venezuela, but their presence is also important in Belize and USA. In Africa, it is official in the Canary Islands, Ceuta, Melilla, Equatorial Guinea. On July 11, 2001, the Spanish (Castilian) was declared an official language of the Organization of African Unity (OAU), along with Arabic, English, French, Portuguese and Kiswahili. In Europe, it is official in Spain and is also talked in Andorra and Gibraltar. Clusters of immigrants in Germany, France, Italy, the Czech Republic and Switzerland. It is one of the official languages of the European Union. In Oceania, is officially on Easter Island (Chile). Clusters of immigrants in Australia. Along with the English is the western language that has more speakers. Would you like to learn Spanish? Visit http://www.iterario.com and that can help you to learning the language.