Argentina (a Spanish adjective meaning "silvery"), is ultimately derived from the Latin argentum "silver" and the feminine of the adjectival suffix -īnus. The Latin "argentum" has its origin from the ancient Greek-Hellenic word "argyro(s)", άργυρο(ς) meaning silver. The first use of the name "Argentina" can be traced back to the first voyages made by the Spanish and Portuguese conquistadors to the Río de la Plata (meaning "River of Silver"), in the first years of the 16th century. Colonization Aleixo Garcia, one of the survivors of the shipwrecked expedition mounted by Juan Díaz de Solís in 1516, heard notices about a powerful White King in a country very rich in silver, at the mountains called "Sierra de la Plata". Garcia then organized an expedition and reached Potosí's area, gaining several silver objects and gifts. He was killed by the Payaguás, returning to Santa Catarina (Brazil), but the Guaraní people who were part of the expedition took the silver objects back and spread the Sierra de Plata legend, and explained that it was possible to reach that fabulous land through the wide river to the south. While the exact origin of the name "Rio de la Plata" is unknown, Italian explorer Sebastian Cabot's exploration between 1526 and 1529 is widely credited to have inspired such name due to his obtaining and collecting a variety of silver objects from the Guaraní tribes along the Paraguay river. The river received other names, such as "Mar Dulce", "Río de Solís", "Río de Santa María", and "Río Jordán", but "Río de La Plata" was the one that prevailed. In Italian and Venetian, Argentina (masculine argentino) means"(made) of silver, silver coloured", derived from the Latin "argentum" for silver. The earliest description of the region by the word Argentina has been found on a Venetian map in 1536. The Portuguese cartographer Lopo Homem made reference to the place as "Terra Argentea" in a 1554 map. The first mention of the name "Argentina" was in Martín del Barco Centenera's poem Argentina y conquista del Río de la Plata, con otros acaecimientos de los reinos del Perú, Tucumán y estado del Brasil, published in Spain in 1602. Ten years later, in 1612, Ruy Díaz de Guzmán published the book Historia del descubrimiento, población, y conquista del Río de la Plata (History of the discovery, population, and conquest of the Río de la Plata), naming the territory discovered by Solís "Tierra