Religion in the Republic of Ireland
Christianity is the largest religion in the Republic of Ireland based on baptisms. Irish Christianity is dominated by the Catholic Church, and Christianity as a whole accounts for 82.3% of the Irish population. Most churches are organized on an all-Ireland basis which includes both Northern Ireland and the Republic of Ireland.
Irish travellers have traditionally adopted a very particular attitude to the Catholic Church, with a focus on figures such as "healing priests". More generally a tradition of visions continues, often outside of Church sanction.
History of Christianity in Ireland
The established church in Ireland underwent a period of more radical Calvinist doctrine than occurred in England. James Ussher (later Archbishop of Armagh) authored the Irish Articles, adopted in 1615. In 1634, the Irish Convocation adopted the English Thirty-Nine Articles alongside the Irish Articles. After the Restoration of 1660, it seems that the Thirty-Nine Articles took precedence; they remain the official doctrine of the Church of Ireland even after disestablishment.