Spanish language
In Spain and in some other parts of the Spanish-speaking world, Spanish is called not only (Spanish) but also (Castilian), the language from the kingdom of Castile, contrasting it with other languages spoken in Spain such as Galician, Basque, Asturian, Catalan, Aragonese and Occitan.
Spanish language in the United States
The United States has forty-one million people aged five or older that speak Spanish at home, making Spanish the second most spoken language of the United States by far. Spanish is the most studied foreign language in United States, with about six million students. With over 50 million native speakers, heritage language speakers and second language speakers, the United States now has the second largest Spanish-speaking population in the world after Mexico, although it is not an official language of the country. About half of all American Spanish speakers also assessed themselves as speaking English "very well" in the 2000 U.S. Census. This percentage increased to 57% in the 2013-2017 American Community Survey. The United States is among the Spanish-speaking countries that has its own Academy of the Spanish Language.