By the middle of the eighteenth century (1750), the English colonies in America ranged from north to south along the eastern side of the Appalachian Mountains. The French , dividing the loyalties of the native tribes in the region, claimed the lands west of the mountains and stretching on to New Spain (later Mexico ). This forged a clear frontier, and a great deal British military investment was made in defending that frontier from the French, and those Indian tribes who sided with them: Things soon changed though. This was a period in which the British Empire saw an extraordinary level of success and growth. In 1759 Canada came under Britain ’s colonial rule, following the Battle of Quebec. In 1760 the vigorous and hugely popular George III ascended to the throne of England , and in 1763 the Peace of Paris effectively ended the French imperial domain in North America - ceding colonial domination to Britain on the East, and Spain in the South. The new frontier in Amer...