Spanish or Castilian (Spanish: español or castellano) is an Iberian Romance language, and the fourth most widely spoken language in the world according to some sources, while other sources list it as the 2nd or 3rd most spoken language. It is spoken as a first language by about 352 million people, or by 417 million including non-native speakers (according to 1999 estimates). Some assert that, after English, Spanish can now be considered the second most important language in the world (probably replacing even French), due to its increased usage in the United States, the high birth rate in most of the countries where it is official, the growing economies of the Spanish-speaking world, its enormous influence on the global music market, and simply due to the broad number of areas on the Earth's surface that the language is spoken in.
