The growth of the great slave crops shows the increasing economic value of Negro labor. In 1619, 20,000 pounds of tobacco went from Virginia to England. Just before the Revolutionary War, 100 million pounds a year were being sent, and at the beginning of the twentieth century, 800 millions were raised in the United States alone. Sugar was a luxury for the rich and physicians until the eighteenth century, when it began to pour out of the West Indies. By the middle of the nineteenth century a million tons of cane sugar were raised each year and this had increased to nearly 3 millions in 1900. The cotton crop rose correspondingly. England, the chief customer at first, consumed 13,000 bales in 1781, 572,000 in 1820, 871,000 in 1830 and 3,366,000 in 1860. The United States raised 6 million bales in 1880, and at the beginning of the twentieth century raised 11 million bales annually. This tremendous increase in crops which formed a large part of modern commerce was due primarily to black labor. At first most of this labor was brute toil of the lowest sort. Our estimate of the value of this work and what it has done for America depends largely upon our estimate of the value of such toil. It must be confessed that, measured in wages and in public esteem, such work stands low in America and in the civilized world. On the other hand the fact that it does stand so low constitutes one of the greatest problems of social advance. Hard manual labor, and much of it of a disagreeable sort, must for a long time lie at the basis of civilized life. We are continually transmitting some of it to machines, but the residuum remains large. In an ideal society it would be highly-paid work because of its unpleasantness and necessity; and even today, no matter what we may say of the individual worker or of the laboring class, we know that the foundation of America is built on the backs of the manual laborer. This was particularly true in the earlier centuries. The problem of America in the fifteenth and sixteenth centuries was the problem of manual labor. It was settled by importing white bond servants from Europe, and black servants from Africa, and compelling the American Indians to work. Indian slavery failed to play any great part because the comparatively small number of Indians in the West Indies were rapidly killed off by the unaccustomed toil or mingled their blood and pooled their destinies with the Negroes. On the continent, on the other hand, the Indians were too powerful, both in numbers and organization, to be successfully enslaved. The white bond servants and the Negroes therefore became the main laboring force of the new world and with their toil the economic development of the continent began.