Christianity in Ireland in the context of "Presbyterian Church in Ireland"

Christianity is the predominant religion in Europe. Christianity has been practiced in Europe since the first century, and a number of the Pauline Epistles were addressed to Christians living in Greece, as well as other parts of the Roman Empire.

According to a 2010 study by the Pew Research Center, 76.2% of the European population identified themselves as Christians.

Christianity in Albania began when Christians arrived in Illyria soon after the time of Jesus, with a bishop being appointed in Dyrrhachium (Epidamnus) in 58 AD.

When the Roman Empire was divided in 395 AD, modern Albania became part of the Byzantine Empire, but was under the jurisdiction of the Pope until 732, when Emperor Leo III placed the church under the Patriarch of Constantinople. When the Christian church split in 1054, the north followed Rome while the south of the country stayed with Constantinople.

Christianity in Kosovo has a long-standing tradition dating to the Roman Empire. The entire Balkan region had been Christianized by the Roman, Byzantine, First Bulgarian Empire, Serbian Kingdom, Second Bulgarian Empire, and Serbian Empire till 13th century. After the Battle of Kosovo in 1389 until 1912, Kosovo was part of the Muslim Ottoman Empire, and a high level of Islamization occurred. During the time period after World War II, Kosovo was ruled by secular socialist authorities in the Socialist Federal Republic of Yugoslavia (SFRY). During that period, Kosovars became increasingly secularized. Today, 87% of Kosovo's population are from Muslim family backgrounds, most of whom are ethnic Albanians, but also including Slavic speakers (who mostly identify themselves as Gorani or Bosniaks) and Turks.

The predominant religion in the Republic of Ireland is Christianity, with the largest denomination being the Catholic Church. The Constitution of Ireland says that the state may not endorse any particular religion and guarantees freedom of religion.

The Church of Ireland (Irish: Eaglais na hÉireann, pronounced [ˈaɡlˠəʃ n̪ˠə ˈheːɾʲən̪ˠ]; Ulster-Scots: Kirk o Airlann, [kɪrk ə ˈerlən(d)]) is a Christian church in Ireland, and an autonomous member church of the Anglican Communion. It is organised on an all-Ireland basis and is the second-largest Christian church on the island after the Roman Catholic Church. Like other Anglican churches, it has retained elements of pre-Reformation practice, notably its episcopal polity, while rejecting the primacy of the pope.

In theological and liturgical matters, it incorporates many principles of the Reformation, particularly those of the English Reformation, but self-identifies as being both Reformed and Catholic, in that it sees itself as the inheritor of a continuous tradition going back to the founding of Christianity in Ireland. As with other members of the global Anglican Communion, individual parishes accommodate differing approaches to the level of ritual and formality, variously referred to as High and Low Church.

The Catholic Church in Ireland, or Irish Catholic Church, is part of the worldwide Catholic Church in communion with the Holy See. With approximately 4.3 million members, it is the largest Christian church in Ireland. In the Republic of Ireland's 2022 census, 69% of the population identified as Roman Catholic, and in Northern Ireland's 2021 census, 42.3% identified as Roman Catholic.

The Archbishop of Armagh, as the Primate of All Ireland, has ceremonial precedence in the church. The church is administered on an all-Ireland basis. The Irish Catholic Bishops' Conference is a consultative body for ordinaries in Ireland.Christianity has existed in Ireland since the 5th century and arrived from Roman Britain (most famously associated with Saint Patrick), forming what is today known as Gaelic Christianity. It gradually gained ground and replaced the old pagan traditions. The Catholic Church in Ireland cites its origin to this period and considers Palladius as the first bishop sent to the Gaels by Pope Celestine I. However, during the 12th century a stricter uniformity in the Western Church was enforced, with the diocesan structure introduced with the Synod of Ráth Breasail in 1111 and culminating with the Gregorian Reform which coincided with the Anglo-Norman invasion of Ireland.