In the beginning of the nineteenth century the majority of mankind still lived upon the countryside, as their way of life had been for countless generations. All over the world they dwelt in little towns and villages then, and engaged either directly in agriculture, or in occupations that were of service to the agriculturist. They travelled rarely, and dwelt close to their work, because swift means of transit had not yet come. The few who travelled went either on foot, or in slow sailing-ships, or by means of jogging horses incapable of more than sixty miles a day. Think of it!--sixty miles a day. Here and there, in those sluggish times, a town grew a little larger than its neighbours, as a port or as a centre of government; but all the towns in the world with more than a hundred thousand inhabitants could be counted on a man's fingers. So it was in the beginning of the nineteenth century. By the end, the invention of railways, telegraphs, steamships, and complex agricultural machinery, had changed all these things: changed them beyond all hope of return. The vast shops, the varied pleasures, the countless conveniences of the larger towns were suddenly possible, and no sooner existed than they were brought into competition with the homely resources of the rural centres. Mankind were drawn to the cities by an overwhelming attraction. The demand for labour fell with the increase of machinery, the local markets were entirely superseded, and there was a rapid growth of the larger centres at the expense of the open country. The flow of population townward was the constant preoccupation of Victorian writers. In Great Britain and New England, in India and China, the same thing was remarked: everywhere a few swollen towns were visibly replacing the ancient order. That this was an inevitable result of improved means of travel and transport--that, given swift means of transit, these things must be--was realised by few; and the most puerile schemes were devised to overcome the mysterious magnetism of the urban centres, and keep the people on the land. Yet the developments of the nineteenth century were only the dawning of the new order. The first great cities of the new time were horribly inconvenient, darkened by smoky fogs, insanitary and noisy; but the discovery of new methods of building, new methods of heating, changed all this. Between 1900 and 2000 the march of change was still more rapid; and between 2000 and 2100 the continually accelerated progress of human invention made the reign of Victoria the Good seem at last an almost incredible vision of idyllic tranquil days.