Between 1550 and 1555 the future navigator fought in the armies of Emperor Charles V. In 1555 he began his exploring career, sailing across the Atlantic Ocean.
[2] In order to take credit of the discoveries for himself Mendaña threw the journals and maps made by Pedro Sarmiento de Gamboa overboard and abandoned him in Mexico.
Sarmiento travelled widely and interviewed numerous local leaders and lords, members of the royal Incan families, and the few remaining Spanish conquistadors who still resided in Cuzco.
He was to take the manuscript to Spain and deliver it to King Philip II, along with four painted cloths showing the history of the Incas and a number of other artefacts and objects that Toledo had collected.
He did not find Drake, who had gone westward through the Pacific Ocean, but he explored the southern Pacific Coast of South America, passed the Magellan Strait from west to east for the second time, drawing precious maps of many points of the Strait, and, after an impressive sailing of the Atlantic Ocean from southwest to northeast, he reached Spain in late 1580.
With only four vessels, Sarmiento de Gamboa continued the voyage, arriving in January 1583 at a favorable point, where he established a fort and colony garrisoned by 300 men which he called Rey Don Felipe.
The settlement failed shortly after he left, and when Thomas Cavendish visited the ruins in 1587 he renamed the place Port Famine.
They had a conversation in Latin,[3] which was their only common language, and despite Spain's official policy of keeping all navigational information secret, he shared his maps with British cartographers.
Pedro Sarmiento de Gamboa spent the rest of his life dedicating himself to his writings and worked as an editor of poetry.