To the southern plantations were lured those to whom land-owning offered not only a means of livelihood but social distinction. As word was brought back of the prosperity of the great estates and of the limitless areas awaiting cultivation, it tempted in substantial numbers those who were dissatisfied with their lot: the yeoman who saw no escape from the limitations of his class, either for himself or for his children; the younger son who disdained trade but was too poor to keep up family pretensions; professional men, lawyers, and doctors, even clergymen, who were ambitious to become landed gentlemen; all these felt the irresistible call of the New World. The northern colonies were, on the other hand, settled by townfolk, by that sturdy middle class which had wedged its way socially between the aristocracy and the peasantry, which asserted itself politically in the Cromwellian Commonwealth and later became the industrial master of trade and manufacture. These hard-headed dissenters founded New England. They built towns and almost immediately developed a profitable trade and manufacture. With a goodly sprinkling of university men among them, they soon had a college of their own. Indeed, Harvard graduated its first class as early as 1642. Supplementing these pioneers, came mechanics and artisans eager to better their condition. Of the serving class, only a few came willingly. These were the "free-willers" or "redemptioners," who sold their services usually for a term of five years to pay for their passage money. But the great mass of unskilled labor necessary to clear the forests and do the other hard work so plentiful in a pioneer land came to America under duress. Kidnaping or "spiriting" achieved the perfection of a fine art under the second Charles. Boys and girls of the poorer classes, those wretched waifs who thronged the streets of London and other towns, were hustled on board ships and virtually sold into slavery for a term of years. It is said that in 1670 alone ten thousand persons were thus kidnaped; and one kidnaper testified in 1671 that he had sent five hundred persons a year to the colonies for twelve years and another that he had sent 840 in one year.