Most Britons still lived and died without encountering anyone whose skin colour was different from their own. Slaves, in short, did not threaten, at least as far as the British at home were concerned. Bestowing freedom upon them seemed therefore purely an act of humanity and will, an achievement that would be to Great Britain's economic detriment, perhaps, but would have few other domestic consequences.

These developments - a massive transfer of land by way of inheritance and purchase, an unprecedented rise in the profitability of land and increasing intermarriage between Celtic and English dynasties - helped to consolidate a new unitary ruling class in place of the more separate and specific landed establishments that had characterised England, Scotland, Wales and Ireland in the Tudor and Stuart eras.

Recognising that an ostentatious cult of heroism and state service served an important propaganda function for the British elite does not mean, of course, that we should dismiss it as artificial or insincere. All aristocracies have a strong military tradition, and for many British patricians the protracted warfare of the period was a godsend. It gave them a job, and, more important, a purpose, an opportunity to carry out what they had been trained to do since childhood: ride horses, fire guns, exercise their undoubted physical courage and tell other people what to do.

For women to be supplying the soldiery with banners, flannel shirts and other material comforts was, superficially, all of a piece with their ministrations to their menfolk at home. Such contributions to the war effort were socially acceptable because they could be seen as an extension into the military sphere of the traditional female virtues of charity, nurture and needlework. Yet in reality what the women were doing represented the thin end of a far more radical wedge. Consciously or not, these female patriots were staking out a civic role for themselves. And many of them relished it.

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.

In Great Britain, woman was subordinate and confined. But at least she was also safe.

At one level Great Britain at the beginning of the 18th century was like the Christian doctrine of the Trinity, both three and one, and altogether something of a mystery.