The third volume of The Oxford History of British and Irish Catholicism examines the period from the defeat of the Jacobite army at the battle of Culloden in 1746 to the enactment of Catholic emancipation in 1829. The first part of the volume offers a chronological overview tracing the decline of Jacobitism, the easing of penal legislation which targeted Catholics, the complex impact of the French Revolution, the debates about the place of Catholics in the post-Union state, and - following the mass mobilisation of Irish Catholics - the passage of emancipation. The second part of the volume shows that this political history can only be properly understood with reference to the broader transformations that occurred in the later eighteenth and early nineteenth centuries. The period witnessed the expansion of Catholic infrastructure (pastoral structures, chapel building, elementary education and finances) and changes in Catholic practice, for example in liturgy and devotion. The growing infrastructure and more public profession of Catholicism occurred in a society where anti-Catholicism remained a force, but the volume also addresses the accommodations and interactions with non-Catholics that attended daily life. Crucially, the transformations of this period were international, as well as national. The volume examines the British and Irish convents, colleges, friaries and monasteries on the continent, especially during the events of the 1790s when many institutions closed and successor or new ones emerged at home. The international dimensions of British and Irish Catholicism extended beyond Europe too as the British Empire expanded globally, and attention is given to the involvement of British and Irish Catholics in imperial expansion. This volume addresses the literary, intellectual and cultural expressions of Catholicism in Britain and Ireland. Catholics produced a rich literature in English, Irish, Scots Gaelic and Welsh, although the volume shows the disparities in provision. They also engaged with and participated in the Catholic Enlightenment, particularly as they grappled with the challenges of accommodation to a Protestant constitution. This also had consequences for the public expression of Catholicism and the volume concludes by exploring the shifting expression of belief through music and material culture.

After 1830 Catholicism in Britain and Ireland was practised and experienced within an increasingly secure Church that was able to build a national presence and public identity. With the passage of the Catholic Relief Act (Catholic Emancipation) in 1829 came civil rights for the United Kingdom's Catholics, which in turn gave Catholic organisations the opportunity to carve out a place in civil society within Britain and its empire. This Catholic revival saw both a strengthening of central authority structures in Rome, (creating a more unified transnational spiritual empire with the person of the Pope as its centre), and a reinvigoration at the local and popular level through intensified sacramental, devotional, and communal practices. After the 1840s, Catholics in Britain and Ireland not only had much in common as a consequence of the Church's global drive for renewal, but the development of a shared Catholic culture across the two islands was deepened by the large-scale migration from Ireland to many parts of Britain following the Great Famine of 1845. Yet at the same time as this push towards a degree of unity and uniformity occurred, there were forces which powerfully differentiated Catholicism on either side of the Irish Sea. Four very different religious configurations of religious majorities and minorities had evolved since the sixteenth-century Reformation in England, Ireland, Scotland, and Wales. Each had its own dynamic of faith and national identity and Catholicism had played a vital role in all of them, either as 'other' or, (in the case of Ireland), as the majority's 'self'. Identities of religion, nation, and empire, and the intersection between them, lie at the heart of this volume. They are unpacked in detail in thematic chapters which explore the shared Catholic identity that was built between 1830 and 1913 and the ways in which that identity was differentiated by social class, gender and, above all, nation. Taken together, these chapters show how Catholicism was integral to the history of the United Kingdom in this period.