But tribes of the Hyborians were drifting south, and as the population increased this movement became extensive. The following age was an epoch of wandering and conquest. Across the history of the world tribes and drifts of tribes move and shift in an everchanging panorama.
Look at the world five hundred years later. Tribes of tawny-haired Hyborians have moved southward and westward, conquering and destroying many of the small unclassified clans.
Absorbing the blood of conquered races, already the descendants of the older drifts have begun to show modified racial traits, and these mixed races are attacked fiercely by new, purer-blooded drifts, and swept before them, as a broom sweeps debris impartially, to become even more mixed and mingled in the tangled debris of races and tag-ends of races.
As yet the conquerors have not come in contact with the older races. To the southeast the descendants of the Zhemri, given impetus by new blood resulting from admixture with some unclassified tribe, are beginning to seek to revive some faint shadow of their ancient culture. To the west the apish Atlanteans are beginning the long climb upward. They have completed the cycle of existence; they have long forgotten their former existence as men; unaware of any other former state, they are starting the climb unhelped and unhindered by human memories. To the south of them the Picts remain savages, apparently defying the laws of Nature by neither progressing nor retrogressing. Far to the south dreams the ancient mysterious kingdom of Stygia. On its eastern borders wander clans of nomadic savages, already known as the Sons of Shem.
Next to the Picts, in the broad valley of Zingg, protected by great mountains, a nameless band of primitives, tentatively classified as akin to the Shemites, has evolved an advanced agricultural system and existence.
Another factor has added to the impetus of Hyborian drift. A tribe of that race has discovered the use of stone in building, and the first Hyborian kingdom has come into being — the rude and barbaric kingdom of Hyperborea, which had its beginning in a crude fortress of boulders heaped to repel tribal attack. The people of this tribe soon abandoned their horse-hide tents for stone houses, crudely but mightily built, and thus protected, they grew strong. There are few more dramatic events in history than the rise of the rude, fierce kingdom of Hyperborea, whose people turned abruptly from their nomadic life to rear dwellings of naked stone, surrounded by cyclopean walls — a race scarcely emerged from the polished stone age, who had by a freak of chance, learned the first rude principles of architecture.
The rise of this kingdom drove forth many other tribes, for, defeated in the war, or refusing to become tributary to their castle-dwelling kinsmen, many clans set forth on long treks that took them half-way around the world. And already the more northern tribes are beginning to be harried by gigantic blond savages, not much more advanced than ape-men.
The tale of the next thousand years is the tale of the rise of the Hyborians, whose warlike tribes dominate the western world. Rude kingdoms are taking shape. The tawny-haired invaders have encountered the Picts, driving them into the barren lands of the west. To the northwest, the descendants of the Atlanteans, climbing unaided from apedom into primitive savagery, have not yet met the conquerors. Far to the east the Lemurians are evolving a strange semi-civilization of their own. To the south the Hyborians have founded the kingdom of Koth, on the borders of those pastoral countries known as the Lands of Shem, and the savages of those lands, partly through contact with the Hyborians, partly through contact with the Stygians who have ravaged them for centuries, are emerging from barbarism. The blond savages of the far north have grown in power and numbers so that the northern Hyborian tribes move southward, driving their kindred clans before them. The ancient kingdom of Hyperborea is overthrown by one of these northern tribes, which, however, retains the old name. Southeast of Hyperborea a kingdom of the Zhemri has come into being, under the name of Zamora. To the southwest, a tribe of Picts have invaded the fertile valley of Zingg, conquered the agricultural people there, and settled among them. This mixed race was in turn conquered later by a roving tribe of Hybori, and from these mingled elements came the kingdom of Zingara.
Five hundred years later the kingdoms of the world are clearly defined. The kingdoms of the Hyborians — Aquilonia, Nemedia, Brythunia, Hyperborea, Koth, Ophir, Argos, Corinthia, and one known as the Border Kingdom — dominate the western world. Zamora lies to the east, and Zingara to the southwest of these kingdoms — people alike in darkness of complexion and exotic habits, but otherwise unrelated. Far to the south sleeps Stygia, untouched by foreign invasion, but the peoples of Shem have exchanged the Stygian yoke for the less galling one of Koth.
The dusky masters have been driven south of the great river Styx, Nilus, or Nile, which, flowing north from the shadowy hinterlands, turns almost at right angles and flows almost due west through the pastoral meadowlands of Shem, to empty into the great sea. North of Aquilonia, the western-most Hyborian kingdom, are the Cimmerians, ferocious savages, untamed by the invaders, but advancing rapidly because of contact with them; they are the descendants of the Atlanteans, now progressing more steadily than their old enemies the Picts, who dwell in the wilderness west of Aquilonia.
Another five centuries and the Hybori peoples are the possessors of a civilization so virile that contact with it virtually snatched out of the wallow of savagery such tribes as it touched. The most powerful kingdom is Aquilonia, but others vie with it in strength and mixed race; the nearest to the ancient root-stock are the Gundermen of Gunderland, a northern province of Aquilonia. But this mixing has not weakened the race. They are supreme in the western world, though the barbarians of the wastelands are growing in strength.
In the north, golden-haired, blue-eyed barbarians, descendants of the blond arctic savages, have driven the remaining Hyborian tribes out of the snow countries, except the ancient kingdom of Hyperborea, which resists their onslaught. Their country is called Nordheim, and they are divided into the red-haired Vanir of Vanaheim, and the yellow-haired Æsir of Asgard.
Now the Lemurians enter history again as Hyrkanians. Through the centuries they have pushed steadily westward, and now a tribe skirts the southern end of the great inland sea — Vilayet — and establishes the kingdom of Turan on the southwestern shore. Between the inland sea and the eastern borders of the native kingdoms lie vast expanses of steppes and in the extreme north and extreme south, deserts. The non-Hyrkanian dwellers of these territories are scattered and pastoral, unclassified in the north, Shemitish in the south, aboriginal, with a thin strain of Hyborian blood from wandering conquerors. Toward the latter part of the period other Hyrkanian clans push westward, around the northern extremity of the inland sea, and clash with the eastern outposts of the Hyperboreans.
Glance briefly at the peoples of that age. The dominant of Hyborians are no longer uniformly tawny-haired and grey-eyed. They have mixed with other races. There is a strong Shemitish, even a Stygian strain among the peoples of Koth, and to a lesser extent, of Argos, while in the case of the latter, admixture with the Zingarans has been more extensive than with the Shemites. The eastern Brythunians have intermarried with the dark-skinned Zamorians, and the people of southern Aquilonia have mixed with the brown Zingarans until black hair and brown eyes are the dominant type in Poitain, the southern-most province. The ancient kingdom of Hyperborea is more aloof than the others, yet there is alien blood in plenty in its veins, from the capture of foreign women — Hyrkanians, Æsir and Zamorians. Only in the province of Gunderland, where the people keep no slaves, is the pure Hyborian stock found unblemished. But the barbarians have kept their bloodstream pure; the Cimmerians are tall and powerful, with dark hair and blue or grey eyes. The people of Nordheim are of similar build, but with white skins, blue eyes and golden or red hair. The Picts are of the same type as they always were — short, very dark, with black eyes and hair. The Hyrkanians are dark and generally tall and slender, though a squat slant-eyed type is more and more common among them, resulting from mixture with a curious race of intelligent, though stunted, aborigines, conquered by them among the mountains east of Vilayet, on their westward drift. The Shemites are generally of medium height, though sometimes when mixed with Stygian blood, gigantic, broadly and strongly built, with hook noses, dark eyes and blue-black hair. The Stygians are tall and well made, dusky, straight-featured — at least the ruling classes are of that type. The lower classes are a down-trodden, mongrel horde, a mixture of negroid, Stygian, Shemitish, even Hyborian bloods. South of Stygia are the vast black kingdoms of the Amazons, the Kushites, the Atlaians and the hybrid empire of Zembabwei.