Latin America is the subregion of the Americas comprising those countries where Romance languages are spoken, primarily Spanish and Portuguese. It consists of twenty sovereign states which cover an area that stretches from the southern border of the United States to the southern tip of South America, including the Caribbean. Latin America has an area of approximately 19,197,000 km (7,412,000 sq mi), almost 13% of the earth’s land surface area. As of 2013, its population was estimated at more than 604 million and in 2014, Latin America has a combined nominal GDP of 5,573,397 million USD and a GDP PPP of 7,531,585 million USD. The term “Latin America” was first used in 1861 in La revue des races Latines, a magazine “dedicated to the cause of Pan-Latinism”.