Ecuador is officially the (Republic of Ecuador which literally translates as “Republic of the Equator”) is a representative democratic republic in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean to the west. Ecuador also includes the Galápagos Islands in the Pacific, about west of the mainland. Spanning an area of 283,520 km2, what is now Ecuador was home to a variety of indigenous groups that were gradually incorporated into the Inca Empire during the fifteenth century. The territory was colonized by Spain during the sixteenth century, achieving independence in 1820 as part of Gran Colombia, from which it emerged as its own sovereign state in 1830. The legacy of both empires is reflected in Ecuador’s ethnically diverse population, with most of its 15.2 million people comprised mostly mestizos followed by large minorities of European, Amerindian, and African descendants. Spanish is the official language and is spoken by a majority of the population, though thirteen indigenous languages are also recognized, including Quichua and Shuar. The capital city is Quito, while the largest city is Guayaquil. In reflection of the country’s rich cultural heritage, the historical center of Quito was declared a UNESCO World Heritage Site in 1978. Cuenca, the third-largest city, was also declared a World Heritage Site in 1999 as an outstanding example of a planned, inland Spanish-style colonial city in the Americas. Ecuador is also known for its rich ecology, hosting many endemic plants and animals, such as those of the Galápagos Islands. It is one of seventeen megadiverse countries in the world, with the most species diversity per unit area. The new constitution of 2008 is the first in the world to recognize legally enforceable Rights of Nature, or ecosystem rights. Ecuador is a democratic presidential republic. A medium-income country, its developing economy is highly dependent on commodities, namely petroleum and agricultural products.