The Proclamation of 1763 was issue October 7, 1763 by King George III following Great Britain's acquisition of French territory in North America after the end of the French and Indian War/Seven Years' War. The purpose of the proclamation was to establish Britain's vast new North American empire, and to stabilize relations with Native Americans through regulation of trade, settlement, and land purchases on the western frontier. The Proclamation in essence forbade colonists of the thirteen colonies from settling or buying land west of the Appalachian Mountains. The colonists were angry because many already had land in that area. Additionally, the Proclamation gave the Crown a monopoly in land bought from Native Americans.