We must describe one more piece of aboriginal work. This is the celebrated Fortress of Cuzco. As we have stated, the ancient pueblo, or city@, was built on the slopes of three hills. One of these, easily defended, was strongly fortified, and thus converted into a citadel. Though called a hill, it is in reality a projecting headland. Back of it rise still higher hills. The portion overhanging the city is very precipitous, in fact, almost incapable of ascent. There is, however, a pathway up this front, ascending in places by stone steps. On this front it did not need very strong fortifications, yet sections of stone wall, serving for this purpose, are to be seen. They have been mostly thrown down, and the stones rolled or tumbled down the hill to be utilized in building. The main defensive works are where the headland commences, from which point the city is not visible.
In this illustration we have a view of the three massive walls which defended the citadel. They are really wonderful works. In order to understand the construction, we will present an imaginary section of the walls. The walls support terraces, but they rose above the terraces so as to form a parapet. To prevent the accumulation of water behind the parapet, channels were cut through the walls at regular intervals to drain them. The height of the outer wall is at present twenty-seven feet; the width of the terrace thirty-five feet. The second wall is eighteen feet high; the width of its terrace is also eighteen feet. The height of the third wall is fourteen feet.
The Incas divided the year into twelve months, but we do not learn how they kept track of the years. In this respect they were behind the Mexicans. Neither do we know of any hieroglyphics for days, or months, or years. In the matter of keeping records, they must have been far below the Mexicans. Our next illustration is that of one of their knot records, or quippos. It is a very rude attempt to assist the memory. To the base cord are attached other threads of various colors, and tied in various ways. We, of course, know but very little about them. It is claimed, however, that a red thread signified a soldier, or war; a yellow one signified gold; a white one silver, or peace; a green one wheat, or maize. A single knot is said to have stood for ten; two knots, twenty; a knot doubly intertwined, one hundred, etc. Also the position of the knots on the threads was to be considered, their distance apart, the way the threads were twisted, and many other details.46 It is manifest, however, that this system of records is of very little value, and is way below the picture-writing of the Mexicans.
Take it all in all, the Incas are indeed an interesting people. We believe, however, their culture has been greatly overrated. Our object in this chapter has been to give an outline of the Incas and the tribes subject to them. It is impossible in these few pages to give more than an outline. Should the reader, by the perusal of these pages, acquire an interest in the culture of the Andean people just before the Spanish invasion, and be thereby induced to continue his investigations, the writer will consider such a result reward enough, even though the conclusions reached should be totally opposed to those set forth in this chapter on Ancient Peru.
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