I have so far in this monograph, based upon and having to do as it has with the Maya glyphs, their interpretation and their place in the linguistic field, limited myself to an analysis and consideration of the facts presented to us by those linguistic and cultural data we have actually before us. But there is one further problem which is suggested by it all. It is this: Where, in point of time and place, is the change in the world’s linguistic and cultural life from ideographic to literal to be sought for, and what is its rationale? Separated from us by such an enormous period of time as it is, I still cannot believe that some view of it cannot be had. There are various facts of Old World history and language, partly of prehistoric Europe, partly of Asia, an analysis of which would extend this paper too far into other fields; but apart entirely from the question of myths or traditions, there are various actual observed phenomena both of language and writing, especially in Central Asia, which do not fit into any of the ordinary theories, and which do suggest this, as a simple linguistic conclusion. In point of locality, at least, the conclusion agrees with the usual “Aryan home” theory; but as far as concerns this latter it must be remembered that however fully it demonstrates the unity of the Aryan race, beyond that fact all questions of dates and even of the state of civilization at the time, are not matters of history as yet for us, but only of theory--as to which our present “perspective” may be once more as faulty as it has often been heretofore.[62-*]