In different sections of this vast region there were different degrees of debasement, influenced by causes no longer known. A tribe called Drevliens, Nestor states, lived in the most gloomy forests with the beasts and like the beasts. They ate any food which a pig would devour, and had as little idea of marriage as have sheep or goats. Among the Sclavonians generally there appears to have been no aristocracy. Each family was an independent republic. Different tribes occasionally met to consult upon questions of common interest, when the men of age, and who had acquired reputation for wisdom, guided in counsel. Gradually during the progress of their wars an aristocracy arose. Warriors of renown became chiefs, and created for themselves posts of authority and honor. By prowess and plunder they acquired wealth. In their incursions into the empire, they saw the architecture of Greece and Rome, and thus incited, they began to rear castles and fortresses. He who was recognized as the leading warrior in time of battle, retained his authority in the days of peace, which were very few. The castle became necessary for the defense of the tribe or clan, and the chieftain became the feudal noble, invested with unlimited power. At one time every man who was rich enough to own a horse was deemed a noble. The first power recognized was only military authority. But the progress of civilization developed the absolute necessity of other powers to protect the weak, to repress crime, and to guide in the essential steps of nations emerging from darkness into light. With all nations advancing from barbarism, the process has ever been slow by which the civil authority has been separated from the military. It is impossible to educe from the chaos of those times any established principles. Often the duke or leader was chosen with imposing ceremonies. Some men of commanding abilities would gather into their hands the reins of almost unlimited power, and would transmit that power to their sons. Others were chiefs but in name. We have but dim glimpses of the early religion of this people. In the sixth century they are represented as regarding with awe the deity whom they designated as the creator of thunder. The spectacle of the majestic storms which swept their plains and the lightning bolts hurled from an invisible hand, deeply impressed these untutored people. They endeavored to appease the anger of the supreme being by the sacrifice of bulls and other animals. They also peopled the groves, the fountains, the rivers with deities; statues were rudely chiseled, into which they supposed the spirits of their gods entered, and which they worshiped. They deemed the supreme being himself too elevated for direct human adoration, and only ventured to approach him through gods of a secondary order. They believed in a fallen spirit, a god of evil, who was the author of all the calamities which afflict the human race.