After picture and symbolic writings would follow phonetic characters, or marks for sounds; that is, the alphabet. Even the alphabet, which in civilized countries has now existed for more than three thousand years, was perfected by degrees; for it has been clearly ascertained that the earliest known did not comprise more than one-half or, at most, two-thirds of the letters which eventually formed its complement. Thus, the Pelasgian alphabet, which is derived from the Phoenician, and is the parent of the Greek and Roman, consisted originally of only twelve or thirteen letters. The invention of the alphabet, which, in a small number of elementary characters, is capable of six hundred and twenty sextillions of combinations, and of exhibiting to the sight the countless conceptions of the mind which have no corporeal forms, is so wonderful that great men of all ages have shrunk from accounting for it otherwise than as a boon of divine origin. This feeling is strengthened by the singular circumstance that so many alphabets bear a strong similarity to each other, however widely separated the countries in which they arose. In Egypt the invention of the alphabet is by some ascribed to Syphoas, nearly two thousand years before the Christian era, but more commonly to Athotes, Thoth, or Toth, a deity always figured with the head of the ibis, and very familiar in Egyptian antiquities. Cadmus is accredited with having introduced it from Egypt into Greece about five centuries later. From the alphabet the gradation is natural to compounds of letters and written language, and, though speech is one of the greatest gifts to man, it is writing which distinguishes him from the uncivilized savage. The practice of writing is of such remote antiquity that neither sacred nor profane authors can satisfactorily trace its origin. The philosopher may exclaim with the poet: "Whence did the wondrous mystic art arise. Of painting speech and speaking to the eyes? That we, by tracing magic lines, are taught How both to color and embody thought?" The earliest writing would probably have been with chalk, charcoal, slate, or perhaps sand, as children from time immemorial have been taught to read and write in India. The Romans used white walls for writing inscriptions on, in red chalk--answering the purpose of our posting-bills--of which several instances were found on the walls of Pompeii. Plutarch informs us that tradesmen wrote in some such manner over their doors, and that auction bills ran thus: "Julius Proculus will this day have an auction of his superfluous goods, to pay his debts."