The conditions under which this shall constitute itself are many and various. For a long while they will greatly depend upon the original circumstances which accompanied and regulated the settlement. When a great manufacturing and commercial system has been founded, embracing states and not petty localities only, it is clear that petty local interests will cease to be the guiding principles: but this state of things transcends the limits of a rude and early society. The liberties of the first cities must often have been mere favours on the part of the lords who owned the soil, and protected the dwellers upon it. Later these liberties were the result of bargains between separate powers, grown capable of measuring one another. Lastly, they are necessities imposed by an advanced condition of human associations, in which the wishes, objects and desires of the individual man are hurried resistlessly away by a great movement of civilization, in which the vast attraction of the mass neutralizes and defeats all minor forces. It would indeed be but slight philosophy to suppose that any one set of circumstances could account for the infinite variety which the history of towns presents: though there are features of resemblance common to them all, yet each has its peculiar story, its peculiar conditions of progress and decay; even as the children of one family, which bear a near likeness to each other, yet each has its own tale of joy and sorrow, of smiles and tears, of triumph and failure. Yet there is probably no single element of urban prosperity more potent than situation, or which more pervasively modifies all other and concurrent conditions of success. Let the most careless observer only compare London, Liverpool and Bristol, I will not say with Munich or Madrid, but even with Warwick, Stafford or Winchester. If royal favour and court gaieties could have made cities great, the latter should have flourished; for they were the residences of the rulers of Mercia and Wessex, the scenes of witena gemóts, of Christmas festivals and Easters when the king solemnly wore his crown; while the _ceorls_ or _mangeras_ of Brigstow and Lundenwíc were only cheapening hides with the Esterlings, warehousing the foreign wines which were to supply the royal table, or bargaining with the adventurer from the East for the incense which was to accompany the high mass in the Cathedral. But Commerce, the child of opportunity, brought wealth; wealth, power; and power led independence in its train.