Religion in the Republic of Ireland
The predominant religion in the Republic of Ireland is Christianity, with the largest church being the Roman Catholic Church. The Irish constitution says that the state may not endorse any particular religion and guarantees freedom of religion.
Quiet Revolution (Republic of Ireland)
The laws governing the Republic of Ireland, as well as Ireland's socio-cultural principles, had until the late 20th century been heavily influenced and dictated by the Roman Catholic Church. Long before and throughout pre-modern and modern history, the majority of Irish citizens were devout Catholics.