South America is a subcontinent or the southern part of America's point of view. The continent is located entirely within the Western Hemisphere and mostly in the southern hemisphere. It is bordered to the west by the Pacific Ocean and north and east by the Atlantic Ocean. Central America and the Caribbean are located in the northeast. South America was named in 1507 by cartographers Martin Waldseemüller and Mathias Ringmann after Amerigo Vespucci, who was the first European to suggest that America was not the East Indies, but a New World unknown to Europeans. South America has an area of 17840000 km2, representing 3.5% of the Earth's surface. In 2005, its population was estimated at more than 371 million inhabitants. The citizens of its inhabitants is South American (e) s. South America is ranked fourth in area (after Asia, Africa and North America) and fifth in population (after Asia, Africa, Europe, and the North America). South America has a vast linguistic diversity: there are around 600 languages belonging to 118 families of languages. For example, the 32 languages of Bolivia are 15 different families, including 6 isolates. The 68 languages of Colombia belong to 13 different families, including 10 isolates. However, the contrast is marked between "major" languages (andenne and Guarani) and small Amazonian languages. Finally, the five languages of colonial South America are Spanish, Portuguese, French (French Guiana), English and Dutch