In Egypt and in Assyria, we see the remains of ancient and formerly populous cities, where now the nomadic Arab pitches his tent or wanders with his flocks, thus showing that relapses of civilization must have occurred in those particular localities where such phenomena are observed. But we know also from history that the civilization which once flourished in those countries did not expire there, but was transferred thence to other places; that the culture of Assyria and of Egypt passed into Greece and developed there; that from Greece it extended to Rome, and in the hands of a new people passed through fresh phases; that after the destruction of the Roman Empire it lay dormant for many ages, only to rise again on its original basis, extended and fertilized by the introduction of fresh blood; that we ourselves are the inheritors of the same arts, customs, and institutions, modified and improved; and finally, that civilization, expanding in all directions, as it continues to move westward, is now in process of being received back by those ancient countries in which it originated, in a condition far more varied and diversified than it could ever have become, had it been confined to a single people or country.
Passing now from the known to the unknown, we come to the study of prehistoric times, prepared to find that every fresh discovery helps us to trace backwards the arts of mankind in unbroken continuity towards their source.
Commencing with the Saxon and the Celt, and passing from these to the lake dwellers, and on to the inhabitants of caves, races whose successive periods of existence are determined chiefly by the animals with which their remains are associated, we find that, according to their antiquity, they appear to have lived in a lower and lower condition of culture, until in the drift period, coeval with the extinct mammoth and the woolly haired rhinoceros, we find the earliest traces of man, scanty and unsatisfactory though they be, yet sufficient to show that he must have existed in a state so rude, as to have devised no better implements than flints pointed at one end, and held in the hand.
These successive prehistoric stages of civilization have been divided into the stone, the bronze, and the iron ages of mankind. The evidence upon which this classification is based, has been so ably set forth in the works of Sir John Lubbock and others, that I need not refer to it further than to state that, in my treatment of the origin and development of the weapons of war, I shall in a great measure follow the same arrangement. But I shall endeavour to trace the development of _form_ rather than the _material_ of weapons, and to show by examples taken from various distinct periods, and especially by illustrations taken from existing savages, the various agencies which appear to have operated in causing progression during the earliest ages of mankind.