According to Wikipedia: "The Spanish conquest of the Inca Empire was one of the most important campaigns in the Spanish colonization of the Americas. After years of preliminary exploration and military skirmishes, 168 Spanish soldiers under Francisco Pizarro and their native allies captured the Sapa Inca Atahualpa in the 1532 Battle of Cajamarca. It was the first step in a long campaign that took decades of fighting but ended in Spanish victory and colonization of the region as the Viceroyalty of Peru. The conquest of the Inca Empire led to spin-off campaigns into present-day Chile and Colombia as well as expeditions towards the Amazon Basin.... William Hickling Prescott (May 4, 1796 – January 29, 1859) was an American historian, known for his books The History of the Reign of Ferdinand and Isabella the Catholic and The History of the Conquest of Mexico… After ten years of study, he published in 1837 his History of Ferdinand and Isabella, which at once gained for him a high place among historians. It was followed in 1843 by the History of the Conquest of Mexico, and in 1847 by the Conquest of Peru. His last work was the History of Philip II, of which the third volume appeared in 1858, and which was left unfinished. In that year he had an apoplectic shock, and another in 1859 was the cause of his death. In all his works he displayed great research, impartiality, and an admirable narrative power. The great disadvantage at which, owing to his very imperfect vision, he worked, makes the first of these qualities specially remarkable, for his authorities in a foreign tongue were read to him, while he had to write on a frame for the blind. Prescott was a man of amiable and benevolent character, and enjoyed the friendship of many of the most distinguished men in Europe as well as in America. Much of Prescott's work was based on his researches with unpublished documents in archives in Spain."