11. Brexit

Episode Summary

Executive Summary: Dominic Sandbrook and Tom Holland use Brexit as a lens to survey British history, comparing it to a series of earlier “Brexits” from Doggerland’s submergence to Roman withdrawal, King John’s break with Rome, the Reformation, Cromwell’s republic, imperial “splendid isolation,” Irish independence, and Dunkirk. They argue that Britain’s recurring tension between continental entanglement and separateness is deeply rooted in geography, religion, empire, and wartime memory.

Main Topics: Doggerland and Britain’s island identity (Priority: 5/5): The hosts begin with the prehistoric drowning of Doggerland, arguing that Britain’s physical separation from Europe is the deepest historical parallel to Brexit and underpins later ideas of British distinctiveness. Roman Britain and the collapse of imperial order (Priority: 5/5): They discuss the end of Roman rule in Britain as a kind of early Brexit: Britons casting off Roman authority, losing monetary economy, and becoming isolated from the continental system. King John and the break with papal authority (Priority: 4/5): John’s loss of continental lands and conflict with Innocent III are framed as a failed Brexit, showing the dangers of leaving a larger supranational order and then seeking readmission on humiliating terms. The Reformation and English exceptionalism (Priority: 5/5): The Henrician Reformation is presented as the strongest historical analogy: rejection of foreign religious authority, assertion of national sovereignty, and the growth of English exceptionalism tied to monarchy and Protestant identity. Empire, global Britain, and the Seven Years’ War (Priority: 3/5): The Seven Years’ War is used to explain Britain’s shift toward a maritime, global outlook, though the hosts note that the empire argument is often overstated in modern Brexit debates. Napoleonic Wars, splendid isolation, and anti-European sentiment (Priority: 4/5): Britain’s resistance to Napoleonic domination and the late-Victorian ideal of splendid isolation are treated as important sources of modern British self-image and suspicion of continental integration. Ireland and Dunkirk as modern political analogies (Priority: 5/5): Irish independence is compared to Brexit as a union exit that becomes hard to reverse, while Dunkirk is described as a literal and mythic Brexit that shaped wartime and postwar national memory.

Key Arguments: Brexit debates are fundamentally historical debates; both Leavers and Remainers rely on competing narratives about Britain’s past. Britain’s island geography is the most durable explanation for recurring impulses toward separation from Europe. The end of Roman Britain shows how leaving a larger system can destroy economic and political structures, including coinage and tax-based administration. King John’s conflict with the papacy illustrates the risks of leaving a supranational order and then being forced back under worse terms. The Reformation is the closest analogy to Brexit because it combined rejection of foreign authority with a powerful claim to national sovereignty and exceptional destiny. The Seven Years’ War and later imperial thinking helped shift Britain’s imagination toward the seas and global power, though this is not the same as Brexit’s actual motivations. Splendid isolation and Dunkirk show how wartime and Victorian myths reinforced the idea that Britain stands apart from Europe. Irish independence demonstrates that once a union is left, return becomes politically and psychologically difficult, even if economic ties remain. The hosts stress that all these analogies are imperfect, but they reveal how Brexit is filtered through long-standing myths of British identity.

Data Points: Doggerland submergence: 8,200 years ago - The first “Brexit” is described as the drowning of Doggerland after the Ice Age. Roman withdrawal from Britain: c. 409–410 CE - The hosts cite the traditional date for Britons defecting from Roman rule. Synod of Whitby: 664 - Used as a marker of Britain aligning with the Roman rather than Celtic Christian tradition. Loss of Normandy: 1204 - King John loses the Duchy of Normandy, beginning his continental retreat. Papal interdict on England: 1208 - Innocent III imposes an interdict after John refuses Stephen Langton. Excommunication of King John: 1209 - John is formally excommunicated during the conflict with the papacy. Threat of French invasion and John’s submission: 1213 - John sues for terms and effectively makes England a papal fiefdom. Seven Years’ War: 1756–1763 - Presented as the moment Britain’s strategic focus shifts toward global and maritime theaters. Napoleonic Wars: 1803–1815 - Used as an example of Britain resisting continental domination and exclusion from Europe. Franco-Prussian War: 1870–1871 - Mentioned as a conflict Britain did not join during the era of splendid isolation.

Pivotal Quotes: "the very first Brexit is the drowning of Doggerland beneath the tsunami" — Tom Holland: Opening historical analogy for Britain’s separation from Europe. "the Britons defected from Roman rule and lived their own lives independent from Roman laws" — Dominic Sandbrook: Discussion of Roman Britain as an early exit from a larger political order. "the Reformation is, to the degree that, you know, there is a parallel. I think it's... probably the least tendentious parallel of the lot" — Tom Holland: Assessment of the strongest historical comparison to Brexit.

Implications: The episode suggests Brexit is best understood as the latest expression of a long British habit of defining itself against Europe. For listeners, it reframes current politics as a struggle over inherited myths, not just policy.