Fuerteventura is an island in the Canary Islands located in the Atlantic Ocean 97 km off the northwest coast of Africa. On May 26, 2009, it was declared a Unesco biosphere nature reserve. The island's capital is Puerto del Rosario (Puerto Cabras until 1956). The island's indigenous name before its conquest in the 15th century was "Erbani" with its two regions "Jandia" and "Maxorata," from which the term majorero (originally majo or maxo) is derived. Fuerteventura is the largest island in the province, and the second largest in the Canary Islands and is geologically, the oldest in the entire archipelago.