The habit of consulting the same oracles in order to ascertain the will of the gods was another bond of union. It was the universal practice of the Greeks to undertake no matter of importance without first asking the advice of the gods; and there were many sacred spots in which the gods were always ready to give an answer to pious worshippers. The oracle of Apollo at Delphi surpassed all the rest in importance, and was regarded with veneration in every part of the Grecian world. In the centre of the temple of Delphi there was a small opening in the ground, from which it was said that a certain gas or vapour ascended. Whenever the oracle was to be consulted, a virgin priestess called PYTHIA took her seat upon a tripod which was placed over the chasm. The ascending vapour affected her brain, and the words which she uttered in this excited condition were believed to be the answer of Apollo to his worshippers. They were always in hexameter verse, and were reverently taken down by the attendant priests. Most of the answers were equivocal or obscure; but the credit of the oracle continued unimpaired long after the downfall of Grecian independence. A further element of union among the Greeks was the similarity of manners and character. It is true the difference in this respect between the polished inhabitants of Athens and the rude mountaineers of Acarnania was marked and striking; but if we compare the two with foreign contemporaries, the contrast between them and the latter is still more striking. Absolute despotism human sacrifices, polygamy, deliberate mutilation of the person as a punishment, and selling of children into slavery, existed in some part or other of the barbarian world, but are not found in any city of Greece in the historical times. The elements of union of which we have been speaking only bound the Greeks together in common feelings and sentiments: they never produced any political union. The independent sovereignty of each city was a fundamental notion in the Greek mind. This strongly rooted feeling deserves particular notice. Careless readers of history are tempted to suppose that the territory of Greece was divided among comparatively small number of independent states, such as Attica, Arcadia, Boeotia, Phocis, Locris, and the like; but this is a most serious mistake, and leads to a total misapprehension of Greek history. Every separate city was usually an independent state, and consequently each of the territories described under the general names of Arcadia, Boeotia, Phocis, and Locris, contained numerous political communities independent of one another. Attica, it is true, formed a single state, and its different towns recognised Athens as their capital and the source of supreme power; but this is an exception to the general rule. CHAPTER IV. EARLY HISTORY OF PELOPONNESUS AND SPARTA, DOWN TO THE END OF THE MESSENIAN WARS, B.C. 668.