History of the Incas
Author: first_name: Pedro
last_name: Sarmiento de Gamboa
Language: English
Year: 2006

The author was commissioned by the Viceroy of Peru to write this History of the Incas for King Philip II, as justification for the violent conquest of the Inca Empire. Sarmiento collected first-hand accounts and submitted this work along with four cloths with figures of the Incas and their wives, on medallions, their Ayllus (family clan), a genealogical tree, depicted historical events, and a map of the Inca Empire. His work has been deemed "the most authentic and reliable that has yet appeared.