Spanish, also called Castilian, is a Romance language that originated in Castile, a region in Spain. There are approximately 407 million people speaking Spanish as a native language, making it the second-most-spoken language by number of native speakers after Mandarin. It also has 60 million speakers as a second language, and 20 million students as a foreign language. Spanish is one of the six official languages of the United Nations, and is used as an official language by the European Union and Mercosur. Wikipedia