Chaldæan chronology therefore leads to almost exactly the same results as that of Egypt. In each case we have a standard or measuring-rod of authentic historical record, of certainly not less than 6000, and more probably 7000 years from the present time; and in each case we find ourselves at this remote date, in presence, not of rude beginnings, but of a civilization already ancient and far advanced. We have populous cities, celebrated temples, an organized priesthood, an advanced state of agriculture and of the industrial and fine arts; writing and books so long known that their origin is lost in myth; religions in which advanced philosophical and moral ideas are already developed; astronomical systems which imply a long course of accurate observations. How long this prehistoric age may have lasted, and how many centuries it may have taken to develop such a civilization, from the primitive beginnings of neolithic and palæolithic origins, is a matter of conjecture. Bunsen thinks it may have taken 10,000 years, but there are no dates from which we can infer the time that may be required for civilization to grow up by spontaneous evolution, among nations where it is not aided by contact with more advanced civilizations from without. All we can infer is, that it must have required an immense time, probably much longer than that embraced by the subsequent period of historical record. And we can say with certainty that during the whole of this historical period of 6000 or 7000 years there has been no change in the established order of Nature. The earth has revolved round its axis and round the sun, the moon and planets have pursued their courses, the duration of human life has not varied, and there have been no destructions and renovations of life or other traces of miraculous interference. And more than this, we can affirm with absolute certainty that 6000 years have not been enough to alter in any perceptible degree the existing physical types of the different races of men and animals, or the primary linguistic types of their forms of speech. The Negro, the Turanian, the Semite, and the Aryan, all stand out as clearly distinguished in the paintings on Egyptian monuments as they do at the present day; and the agglutinative languages are as distinct from the inflectional, and the Semite from the Aryan forms of inflections, in the old Chaldæan cylinders as they are in the nineteenth century. CHAPTER III. OTHER HISTORICAL RECORDS. _China_--Oldest existing Civilization--but Records much later than those of Egypt and Chaldæa--Language and Traditions Accadian--Communication how effected. _Elam_--Very Early Civilization--Susa, an old City in First Chaldæan Records--Conquered Chaldæa in 2280 B.C.--Conquered by Assyrians 645 B.C.--Statue of Nana--Cyrus an Elamite King--His Cylinder--Teaches Untrustworthiness of Legendary History.