THE British empire is one of the front lines in the culture war. Few things make Establishment academics and pundits angrier than the critical scrutiny British imperialism is increasingly subjected to, particularly by scholars that aren’t white, male and privileged, the characteristics hitherto regarded as essential for holding an opinion on the subject.

Historians like Niall Ferguson and Robert Tombs argue that the empire wasn’t such a bad thing overall, a few undeniable excesses notwithstanding, or, as a fallback, too complex to pass judgement on. They are keener on emphasising Britain’s role in abolishing slavery than its prior record of promoting and profiting from it, and its foundational part in the development of capitalism.

They also disdain the intrusion of new scholars onto their terrain. In one especially unpleasant article, Tombs singled out three for the sin of exploiting “the fashionable theme of ‘anti-colonialism’,” as if hostility to colonialism was a priori a historical disability.