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.
Christianity in Ireland
In modern Irish nationalism, anti-Protestantism is usually more nationalist than religious in tone. The main reason for this is the identification of Protestants with unionism – i.e. the support for the maintenance of the union with the United Kingdom, and opposition to Home Rule or Irish independence. In Northern Ireland, since the foundation of the Free State in 1921, Catholics, who are mainly nationalists, allege systematic discrimination against them by the Protestant unionist community. The mixture of religious and national identities on both sides reinforces both anti-Catholic and anti-Protestant sectarian prejudice in the province.