The tract of land thus assigned for the first establishment of Hinduism in India is of very circumscribed extent, and could not have been the site of any numerous tribe or nation. The traditions that evidence the early settlement of the Hindus in this quarter, ascribe to the settlers more of a philosophical and religious, than of a secular character, and combine with the very narrow bounds of the holy land to render it possible that the earliest emigrants were the members, not of a political, so much as of a religious community; that they were a colony of priests, not in the restricted sense in which we use the term, but in that in which it still applies in India, to an Agrahára, a village or hamlet of Brahmans, who, although married, and having families, and engaging in tillage, in domestic duties, and in the conduct of secular interests affecting the
community, are still supposed to devote their principal attention to sacred study and religious offices. A society of this description, with its artificers and servants, and perhaps with a body of martial followers, might have found a home in the Brahmá-vartta of Manu, the land which thence was entitled 'the holy,' or more literally 'the Brahman, region;' and may have communicated to the rude, uncivilized, unlettered aborigines the rudiments of social organization, literature, and religion; partly, in all probability, brought along with them, and partly devised and fashioned by degrees for the growing necessities of new conditions of society. Those with whom this civilization commenced would have had ample inducements to prosecute their successful work, and in the course of time the improvement which germinated on the banks of the Saraswatí was extended beyond the borders of the Jumna and the Ganges.
We have no satisfactory intimation of the stages by which the political organization of the people of Upper India traversed the space between the Saraswatí and the more easterly region, where it seems to have taken a concentrated form, and whence it diverged in various directions, throughout Hindustan. The Manu of the present period, Vaivaswata, the son of the sun, is regarded as the founder of Ayodhyá; and that city continued to be the capital of the most celebrated branch of his descendants, the posterity of Ikshwáku. The Vishńu Puráńa evidently intends to describe the radiation of conquest or colonization from this spot, in the accounts it gives of the dispersion of Vaivaswata's posterity: and although it is difficult to understand what could have led early settlers in India to such a site, it is not inconveniently situated as a commanding position, whence emigrations might proceed to the east, the west, and the south. This seems to have happened: a branch from the house of Ikshwáku spread into Tirhut, constituting the Maithilá kings; and the posterity of another of Vaivaswata's sons reigned at Vaisáli in southern Tirhut or Saran.