Human beings are many-layered creatures, and do not succumb to the hegemony of others as easily as historians and politicians sometimes imply. Those Welsh, Scottish and Anglo-Irish individuals who became part of the British Establishment in this period did not in the main sell out in the sense of becoming Anglicised look-alikes. Instead, they became British in a new and intensely profitable fashion, while remaining in their own minds and behavior Welsh, or Scottish, or Irish aswell.

In the past, the British had signally failed to build an effective structure of royal authority and administration in their American colonies. As a result, no possibility existed of soothing and winning over influential and talented Americans, in the way that influential and talented Scotsmen were increasingly being won over, by giving them increased access to state employment.

Jacobitism involved much more than a debate about the merits of a particular dynasty. Men and women were well aware that its success was almost certain to involved them in civil war. And the more politically educated knew that the Stuart Pretender was a pawn in a worldwide struggle for commercial and imperial primacy between Britain and France.

Contrary to received wisdom, the British are not an insular people in the conventional sense - far from it. For most of their early modern and modern history, they have had more contact with more parts of the world than almost any other nation - it is just that this contact has regularly taken the form of aggressive military and commercial enterprise.

Can it be entirely accidental that the most famous fictional spy of them all, James Bond, Number 007, deadly marksman, intriguer, the ultimate man behind the curtain, sexual athlete and ruthless patriot, is also a Scot, as was the author, whose wish-fulfilment he was?

In virtually every Continental state at this time, aristocracies had to live with the risk that their property might be pillaged or confiscated. Only in Great Britain did it prove possible to float the idea that aristocratic property was in some magical and strictly intangible way the people's property also. The fact that hundreds of thousands of men and women today are willing to accept that privately owned country houses and their contents are part of Britain's national heritage is one more proof of how successfully the British elite reconstructed its cultural image in an age of revolution.

In the last quarter of the 20th century, Britons have been understandably obsessed with the problem of having too little power in the world. In the third quarter of the 18th century, by contrast, their forebears were perplexed by the problem of having acquired too much power too quickly over too many people.