"Dimly your nineteenth-century philosophers seem to have perceived that the general diffusion of intelligence was a new and large fact, and that it introduced a very important force into the social evolution, but they were wall-eyed in their failure to see the certainty with which it foreshadowed a complete revolution of the economic basis of society in the interest of the whole body of the people as opposed to class interest or partial interest of every sort. Its first effect was the democratic movement by which personal and class rule in political matters was overthrown in the name of the supreme interest and authority of the people. It is astonishing that there should have been any intelligent persons among you who did not perceive that political democracy was but the pioneer corps and advance guard of economic democracy, clearing the way and providing the instrumentality for the substantial part of the programme--namely, the equalization of the distribution of work and wealth. So much for the main, general, and necessary cause and explanation of the great Revolution--namely, the progressive diffusion of intelligence among the masses from the sixteenth to the end of the nineteenth centuries. Given this force in operation, and the revolution of the economic basis of society must sooner or later have been its outcome everywhere: whether a little sooner or later and in just what way and with just what circumstances, the differing conditions of different countries determined. "In the case of America, the period of revolutionary agitation which resulted in the establishment of the present order began almost at once upon the close of the civil war. Some historians date the beginning of the Revolution from 1873." "Eighteen seventy-three!" I exclaimed; "why, that was more than a dozen years before I fell asleep! It seems, then, that I was a contemporary and witness of at least a part of the Revolution, and yet I saw no Revolution. It is true that we recognized the highly serious condition of industrial confusion and popular discontent, but we did not realize that a Revolution was on." "It was to have been expected that you would not," replied the doctor. "It is very rarely that the contemporaries of great revolutionary movements have understood their nature until they have nearly run their course. Following generations always think that they would have been wiser in reading the signs of the times, but that is not likely." "But what was there," I said, "about 1873 which has led historians to take it as the date from which to reckon the beginning of the Revolution?"