Although the most obvious features of the half-century following the great British triumph of 1763 were the revolt of the American colonies and the apparently universal collapse of the imperialist ambitions of the European nations, a more deeply impressive feature of the period was that, in spite of the tragedy and humiliation of the great disruption, the imperial impetus continued to work potently in Britain, alone among the European nations; and to such effect that at the end of the period she found herself in control of a new empire more extensive than that which she had lost, and far more various in its character. Having failed to solve one great imperial problem, she promptly addressed herself to a whole series of others even more difficult, and for these she was to find more hopeful solutions.
When the American revolt began, the Canadian colonies to the north were in an insecure and unorganised state. On the coast, in Nova Scotia and Newfoundland, there was a small British population; but the riverine colony of Canada proper, with its centre at Quebec, was still purely French, and was ruled by martial law. Accustomed to a despotic system, and not yet reconciled to the British supremacy, the French settlers were obviously unready for self-government. But the Quebec Act of 1774, by securing the maintenance of the Roman Catholic religion and of French civil law, ensured the loyalty of the French; and this Act is also noteworthy as the first formal expression of willingness to admit or even welcome the existence, within the hospitable limits of the Empire, of a variety of types of civilisation. In the new British Empire there was to be no uniformity of Kultur.