Celtic Christianity in the context of "Christian world"

In the seventh century the pagan Anglo-Saxons were converted to Christianity (Old English: Crīstendōm) mainly by missionaries sent from Rome. Irish missionaries from Iona, who were proponents of Celtic Christianity, were influential in the conversion of Northumbria, but after the Synod of Whitby in 664, the Anglo-Saxon church gave its allegiance to the Pope.

The Gaels (/ɡeɪlz/ GAYLZ; Irish: Na Gaeil [n̪ˠə ˈɡeːlʲ]; Scottish Gaelic: Na Gàidheil [nə ˈkɛː.al]; Manx: Ny Gaeil [nə ˈɡeːl]) are an Insular Celtic ethnic group native to Ireland, Scotland, and the Isle of Man, and historically, Iceland and the Faroe Islands. They are associated with the Gaelic languages: a branch of the Celtic languages comprising Irish, Manx, and Scottish Gaelic.

Gaelic language and culture originated in Ireland, extending to Dál Riata in western Scotland. In antiquity, the Gaels traded with the Roman Empire and also raided Roman Britain. In the Middle Ages, Gaelic culture became dominant throughout the rest of Scotland and the Isle of Man. There was also some Gaelic settlement in Wales, as well as cultural influence through Celtic Christianity. In the Viking Age, small numbers of Vikings raided and settled in Gaelic lands, becoming the Norse-Gaels. In the 9th century, Dál Riata and Pictland merged to form the Gaelic Kingdom of Alba (Scotland). Meanwhile, Gaelic Ireland was made up of several kingdoms, with a High King often claiming lordship over them.

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.

Dál Riata or Dál Riada (also Dalriada) (/dælˈriːədə/) was a Gaelic kingdom that encompassed the western seaboard of Scotland and north-eastern Ireland, on each side of the North Channel. At its height in the 6th and 7th centuries, it covered what is now Argyll ("Coast of the Gaels") in Scotland and part of County Antrim in Northern Ireland. After a period of expansion, Dál Riata eventually became associated with the Gaelic Kingdom of Alba.

In Argyll, it consisted of four main kindreds or tribes, each with their own chief: the Cenél nGabráin (based in Kintyre), the Cenél nÓengusa (based on Islay), the Cenél Loairn (who gave their name to the district of Lorn) and the Cenél Comgaill (who gave their name to Cowal). The hillfort of Dunadd is believed to have been its capital. Other royal forts included Dunollie, Dunaverty and Dunseverick. Within Dál Riata was the important monastery of Iona, which played a key role in the spread of Celtic Christianity throughout northern Britain, and in the development of insular art. Iona was a centre of learning and produced many important manuscripts. Dál Riata had a strong seafaring culture and a large naval fleet.

The first evidence of human presence in Ireland dates to around 34,000 years ago, with further findings dating the presence of Homo sapiens to 7,000 BC. The receding of the ice the Younger Dryas cold phase of the Quaternary, around 9700 BC, heralds the beginning of Prehistoric Ireland, which includes the archaeological periods known as the Mesolithic, the Neolithic from about 4000 BC, and the Copper Age beginning around 2500 BC with the arrival of the Beaker Culture. The Irish Bronze Age proper begins around 2000 BC and ends with the arrival of the Iron Age of the Celtic Hallstatt culture, beginning about 600 BC. The subsequent La Tène culture brought new styles and practices by 300 BC.

Greek and Roman writers give some information about Ireland during the Classical period (see "protohistoric" period), by which time the island may be termed "Gaelic Ireland". By the late 4th century CE Christianity had begun to gradually subsume or replace the earlier Celtic polytheism. By the end of the 6th century, it had introduced writing along with a predominantly monastic Celtic Christian church, profoundly altering Irish society. Seafaring raiders and pirates from Scandinavia (later referred to as Vikings), settled from the late 8th century AD which resulted in extensive cultural interchange, as well as innovation in military and transport technology. Many of Ireland's towns were founded at this time as Scandinavian trading posts and coinage made its first appearance. Scandinavian penetration was limited and concentrated along coasts and rivers, and ceased to be a major threat to Gaelic culture after the Battle of Clontarf in 1014. The Norman invasion in 1169 resulted again in a partial conquest of the island and marked the beginning of more than 800 years of English political and military involvement in Ireland. Initially successful, Norman gains were rolled back over succeeding centuries as a Gaelic resurgence reestablished Gaelic cultural preeminence over most of the country, apart from the walled towns and the area around Dublin known as The Pale.

Insular art, also known as Hiberno-Saxon art, was produced in the post-Roman era of Great Britain and Ireland. The term derives from insula, the Latin term for "island"; in this period Britain and Ireland shared a largely common style different from that of the rest of Europe. Art historians usually group Insular art as part of the Migration Period art movement as well as Early Medieval Western art, and it is the combination of these two traditions that gives the style its special character.

Most Insular art originates from the Irish monastic movement of Celtic Christianity, or metalwork for the secular elite, and the period begins around 600 with the combining of Celtic and Anglo-Saxon styles. One major distinctive feature is interlace decoration, in particular the interlace decoration as found at Sutton Hoo, in East Anglia. This is now applied to decorating new types of objects mostly copied from the Mediterranean world, above all the codex or book.

Monastic settlements are areas built up in and around the development of monasteries with the spread of Christianity. To understand Christian monastic settlements, we must understand a brief history of Christian monasticism. Monasticism was a movement especially associated with Early Christianity that began in the late 3rd century to the 4th century in Egypt when early Christians realizing that martyrdom wasn’t much of an option when the Roman empire relaxed Christian persecutions. It was begun by key monks who were known then as “The Desert Fathers” and later, there were female monasteries run by women who later came to be known as “The Desert Mothers”. The most famous Desert Father was Abba Anthony and the most famous Desert Mother was Amma Syncletica.ost of the Christians took to the deserts and arid areas to deny themselves of the social environments and people in order to focus on God and prayer. They denied themselves of a comfortable life often resorting to eating what grew in the deserts as well as living frugally and in poverty. With time, monasticism came to impact the church and even the papacy and there came about two variants of monasticism: The Eastern Monastic movement and the Western Monastic movement. Inspired by the Eastern monastic movements, new monastic movements sprung up in western Europe after the Roman empire fell apart and newer kingdoms like the Franks, Britannia and Germanic tribes sprung up. The papacy was at its infancy and places like the Isles of Britannia had monks that established monasteries along its coastlines. One of the forerunners was St. Augustine whose Rule became encoded in the future doctrine of the Roman clergy of the church.

These settlements are of historic interest as the development of a monastery typically spurred other settlement developments over many hundreds of years which may be rich in historical artifacts enabling understanding of social orders and the spread of culture and technologies. For instance, there were monastic settlements (e.g. Wadi al-Natrun), which developed a kind of council, which adopted the responsibility of communication between the monastery and the world. There are also settlements that performed specialized tasks such as the preservation of religious texts as demonstrated by a distinctive literature called apophthegmata (sayings) recorded and preserved by men and women living in the community around Nitria. Celtic Christianity also had the so-called "double-monasteries", where men and women could live within the same monastic settlement, spawning a community settled by supporters, which was governed by unique rules and intentions, particularly concerning gender relations and spiritual equality.

Irish mythology is the body of myths indigenous to the island of Ireland. It was originally passed down orally in the prehistoric era. In the early medieval era, myths were written down by Christian scribes, who Christianized them to some extent. Irish mythology is the best-preserved branch of Celtic mythology.

The myths are conventionally grouped into 'cycles'. The Mythological Cycle consists of tales and poems about the god-like Tuatha Dé Danann, who are based on Ireland's pagan deities, and other mythical races like the Fomorians. Important works in the cycle are the Lebor Gabála Érenn ("Book of Invasions"), a legendary history of Ireland, the Cath Maige Tuired ("Battle of Moytura"), and the Aided Chlainne Lir ("Children of Lir"). The Ulster Cycle consists of heroic legends relating to the Ulaid, the most important of which is the epic Táin Bó Cúailnge ("Cattle Raid of Cooley"). The Fenian Cycle focuses on the exploits of the mythical hero Finn and his warrior band the Fianna, including the lengthy Acallam na Senórach ("Tales of the Elders"). The Cycles of the Kings comprises legends about historical and semi-historical kings of Ireland (such as Buile Shuibhne, "The Madness of King Sweeny"), and tales about the origins of dynasties and peoples.

Gwened, Bro-Gwened (Breton: Bro-Wened) or Vannetais (French: Pays Vannetais) is a historic realm and county of Brittany in France. It is considered part of Lower Brittany.

Bro-Gwened was an early medieval principality or kingdom around Vannes in Armorica (Brittany), lasting from around AD 490 to around 635. It was peopled by Christianized Britons fleeing the Saxon invasions of Britain, who displaced or assimilated the remaining pagan Veneti Gauls. Its bishop and (usually) court was at Gwened, the site of the former Roman settlement of Darioritum and the present French city of Vannes.