It is, of course, not known when the Russians settled in their present territory. In the first half of the ninth century they occupied a large extent of land stretching from the Carpathians to the upper waters of the Don and the Volga, and from the neighborhood of Lake Ladoga to a point about half-way between Kief and the Black Sea. All this population lived in villages which were governed in patriarchal fashion by the heads of families. A number of village communities formed a volost, or district, which was the largest government unit in the country. The size of these volosts varied, according to the convenience or the necessities of the case, but in general they were small. As the Slavs were much attached to their village autonomy, and as there was an inexhaustible supply of land, it was quite impossible for a large community to subdue and absorb a weaker one, for the latter had always the power of removing to some unoccupied district and setting up its little republic in the wilderness. The family system in force among the Slavs greatly favored this process, for a family was not, as in modern times, composed of parents and children only, but of two, three and even four generations. The head of this family was the oldest person in it, and its size was regulated by power of agreement among the members. There were often forty, fifty, or a hundred persons living in one family, all obeying a single head. A few such families formed a village, a few villages a volost, which was sometimes as large as one of our counties. The tendency of a society like this was altogether toward expansion. After reaching a certain size the village community divided, one part remaining in the old place, the other selecting a new field for its industry. It was only at a few points favorable for trade that a large number of people lived together—Novgorod near Lake Ilmen was the most conspicuous example of this kind. It is evident that people living in this manner had little power of combination and could offer but slight resistance to invasion. Novgorod, situated near the confluence of the different rivers, and in direct communication with the Baltic, became a great trading point, and was not only the most populous place in the whole country, but the first in which civil government began. It was a market-place for the goods of Europe and Asia, and soon rose to a position of wealth and importance. Its government was an extension of the communal system of the country, and was in fact a confederation of villages, held together very loosely. Such a place offered an excellent point of attack to the Northmen, the most enterprising and rapacious of mankind, who at that period left no European country in peace.