Although the amount of arable land which could be made available with the most careful terracing was not large enough to support a very great population, Machu Picchu offered an impregnable citadel Page 332to the chiefs and priests and their handful of followers who were obliged to flee from the rich plains near Cuzco and the broad, pleasant valley of Yucay. Only dire necessity and terror could have forced a people which had reached such a stage in engineering, architecture, and agriculture, to leave hospitable valleys and tablelands for rugged canyons. Certainly there is no part of the Andes less fitted by nature to meet the requirements of an agricultural folk, unless their chief need was a safe refuge and retreat.

Here the wise remnant of the Amautas ultimately developed great ability. In the face of tremendous natural obstacles they utilized their ancient craft to wrest a living from the soil. Hemmed in between the savages of the Amazon jungles below and their enemies on the plateau above, they must have carried on border warfare for generations. Aided by the temperate climate in which they lived, and the ability to secure a wide variety of food within a few hours' climb up or down from their towns and cities, they became a hardy, vigorous tribe which in the course of time burst its boundaries, fought its way back to the rich Cuzco Valley, overthrew the descendants of the ancient invaders and established, with Cuzco as a capital, the Empire of the Incas.

After the first Inca, Manco Ccapac, had established himself in Cuzco, what more natural than that he should have built a fine temple in honor of his ancestors. Ancestor worship was common to the Incas, and nothing would have been more reasonable than the construction of the Temple of the Page 333Three Windows. As the Incas grew in power and extended their rule over the ancient empire of the Cuzco Amautas from whom they traced their descent, superstitious regard would have led them to establish their chief temples and palaces in the city of Cuzco itself. There was no longer any necessity to maintain the citadel of Tampu-tocco. It was probably deserted, while Cuzco grew and the Inca Empire flourished.

As the Incas increased in power they invented various myths to account for their origin. One of these traced their ancestry to the islands of Lake Titicaca. Finally the very location of Manco Ccapac's birthplace was forgotten by the common people—although undoubtedly known to the priests and those who preserved the most sacred secrets of the Incas.

Then came Pizarro and the bigoted conquistadores. The native chiefs faced the necessity of saving whatever was possible of the ancient religion. The Spaniards coveted gold and silver. The most precious possessions of the Incas, however, were not images and utensils, but the sacred Virgins of the Sun, who, like the Vestal Virgins of Rome, were from their earliest childhood trained to the service of the great Sun God. Looked at from the standpoint of an agricultural people who needed the sun to bring their food crops to fruition and keep them from hunger, it was of the utmost importance to placate him with sacrifices and secure the good effects of his smiling face. If he delayed his coming or kept himself hidden behind the clouds, the maize Page 334would mildew and the ears would not properly ripen. If he did not shine with his accustomed brightness after the harvest, the ears of corn could not be properly dried and kept over to the next year. In short, any unusual behavior on the part of the sun meant hunger and famine. Consequently their most beautiful daughters were consecrated to his service, as “Virgins” who lived in the temple and ministered to the wants of priests and rulers. Human sacrifice had long since been given up in Peru and its place taken by the consecration of these damsels. Some of the Virgins of the Sun in Cuzco were captured. Others escaped and accompanied Manco into the inaccessible canyons of Uilcapampa.

It will be remembered that Father Calancha relates the trials of the first two missionaries in this region, who at the peril of their lives urged the Inca to let them visit the “University of Idolatry,” at “Vilcabamba Viejo,” “the largest city” in the province. Machu Picchu admirably answers its requirements. Here it would have been very easy for the Inca Titu Cusi to have kept the monks in the vicinity of the Sacred City for three weeks without their catching a single glimpse of its unique temples and remarkable palaces. It would have been possible for Titu Cusi to bring Friar Marcos and Friar Diego to the village of Intihuatana near San Miguel, at the foot of the Machu Picchu cliffs. The sugar planters of the lower Urubamba Valley crossed the bridge of San Miguel annually for twenty years in blissful ignorance of what lay on top of the ridge above them. So the friars might easily have been Page 335lodged in huts at the foot of the mountain without their being aware of the extent and importance of the Inca “university.” Apparently they returned to Puquiura with so little knowledge of the architectural character of “Vilcabamba Viejo” that no description of it could be given their friends, eventually to be reported by Calancha. Furthermore, the difficult journey across country from Puquiura might easily have taken “three days.”

Finally, it appears from Dr. Eaton's studies that the last residents of Machu Picchu itself were mostly women. In the burial caves which we have found in the region roundabout Machu Picchu the proportion of skulls belonging to men is very large. There are many so-called “trepanned” skulls. Some of them seem to belong to soldiers injured in war by having their skulls crushed in, either with clubs or the favorite sling-stones of the Incas. In no case have we found more than twenty-five skulls without encountering some “trepanned” specimens among them. In striking contrast is the result of the excavations at Machu Picchu, where one hundred sixty-four skulls were found in the burial caves, yet not one had been “trepanned.” Of the one hundred thirty-five skeletons whose sex could be accurately determined by Dr. Eaton, one hundred nine were females. Furthermore, it was in the graves of the females that the finest artifacts were found, showing that they were persons of no little importance. Not a single representative of the robust male of the warrior type was found in the burial caves of Machu Picchu. Page 336

Another striking fact brought out by Dr. Eaton is that some of the female skeletons represent individuals from the seacoast. This fits in with Calancha's statement that Titu Cusi tempted the monks not only with beautiful women of the highlands, but also with those who came from the tribes of the Yungas, or “warm valleys.” The “warm valleys” may be those of the rubber country, but Sir Clements Markham thought the oases of the coast were meant.

Furthermore, as Mr. Safford has pointed out, among the artifacts discovered at Machu Picchu was a “snuffing tube” intended for use with the narcotic snuff which was employed by the priests and necromancers to induce a hypnotic state. This powder was made from the seeds of the tree which the Incas called huilca or uilca, which, as has been pointed out in [Chapter XI], grows near these ruins. This seems to me to furnish additional evidence of the identity of Machu Picchu with Calancha's “Vilcabamba.”

It cannot be denied that the ruins of Machu Picchu satisfy the requirements of “the largest city, in which was the University of Idolatry.” Until some one can find the ruins of another important place within three days' journey of Pucyura which was an important religious center and whose skeletal remains are chiefly those of women, I am inclined to believe that this was the “Vilcabamba Viejo” of Calancha, just as Espiritu Pampa was the “Vilcabamba Viejo” of Ocampo.