The prime determinative principle of the progressive American civilization of the eighteenth century was the passion for the acquisition of land. The struggle for economic independence developed the germ of American liberty and became the differentiating principle of American character. Here was a vast unappropriated region in the interior of the continent to be had for the seeking, which served as lure and inspiration to the man daring enough to risk his all in its acquisition. It was in accordance with human nature and the principles of political economy that this unknown extent of uninhabited transmontane land, widely renowned for beauty, richness, and fertility, should excite grandiose dreams in the minds of English and Colonials alike. England was said to be "New Land mad and everybody there has his eye fixed on this country." [2] Groups of wealthy or well-to-do individuals organized themselves into land companies for the colonization and exploitation of the West. The pioneer promoter was a powerful creative force in westward expansion; and the activities of the early land companies were decisive factors in the colonization of the wilderness. Whether acting under the authority of a crown grant or proceeding on their own authority, the land companies tended to give stability and permanence to settlements otherwise hazardous and insecure. The second determinative impulse of the pioneer civilization was wanderlust--the passionately inquisitive instinct of the hunter, the traveler, and the explorer. This restless class of nomadic wanderers was responsible in part for the royal proclamation of 1763, a secondary object of which, according to Edmund Burke, was the limitation of the colonies on the West, as "the charters of many of our old colonies give them, with few exceptions, no bounds to the westward but the South Sea." The Long Hunters, taking their lives in their hands, fared boldly forth to a fabled hunter's paradise in the far-away wilderness, because they were driven by the irresistible desire of a Ponce de Leon or a De Soto to find out the truth about the unknown lands beyond.