Christianisation of Anglo-Saxon England in the context of "Anglo-Saxon paganism"

Gaelic Ireland (Irish: Éire Ghaelach) was the Gaelic political and social order, and associated culture, that existed in Ireland from the late prehistoric era until the 17th century. It comprised the whole island before Anglo-Normans conquered parts of Ireland in the 1170s. Thereafter, it comprised that part of the country not under foreign dominion at a given time (i.e. the part beyond The Pale). For most of its history, Gaelic Ireland was a "patchwork" hierarchy of territories ruled by a hierarchy of kings or chiefs, who were chosen or elected through tanistry. Warfare between these territories was common. Traditionally, a powerful ruler was acknowledged as High King of Ireland. Society was made up of clans and, like the rest of Europe, was structured hierarchically according to class. Throughout this period, the economy was mainly pastoral and money was generally not used. A Gaelic Irish style of dress, music, dance, sport and art can be identified, with Irish art later merging with Anglo-Saxon styles to create Insular art.

Gaelic Ireland was initially pagan and had an oral culture maintained by traditional Gaelic storytellers/historians, the seanchaidhthe. Writing, in the form of inscription in the ogham alphabet, began in the protohistoric period, perhaps as early as the 1st century. The conversion to Christianity, beginning in the 5th century, accompanied the introduction of literature. In the Middle Ages, Irish mythology and Brehon law were recorded by Irish monks, albeit partly Christianized. Gaelic Irish monasteries were important centres of learning. Irish missionaries and scholars were influential in western Europe and helped to spread Christianity to much of Britain and parts of mainland Europe.

The Gregorian mission or Augustinian mission was a Christian mission sent by Pope Gregory the Great to England in 596 to convert the Anglo-Saxons. The mission was headed by Augustine of Canterbury. By the time of the death of the last missionary in 653, the mission had established Christianity among the southern Anglo-Saxons. Along with the Irish and Frankish missions it converted Anglo-Saxons in other parts of Britain as well and influenced the Hiberno-Scottish missions to continental Europe.

When the Roman Empire recalled its legions from the province of Britannia in 410, parts of the island had already been settled by pagan Germanic tribes who, later in the century, appear to have taken control of Kent and other coastal regions no longer defended by the Roman Empire. In the late 6th century Pope Gregory sent a group of missionaries to Kent to convert Æthelberht, King of Kent, whose wife, Bertha of Kent, was a Frankish princess and practising Christian. Augustine had been the prior of Gregory's own monastery in Rome and Gregory prepared the way for the mission by soliciting aid from the Frankish rulers along Augustine's route. In 597, the forty missionaries arrived in Kent and were permitted by Æthelberht to preach freely in his capital of Canterbury.

Hilda of Whitby (or Hild; c. 614 – 680) was a saint of the early Church in Britain. She was the founder and first abbess of the monastery at Whitby which was chosen as the venue for the Synod of Whitby in 664. An important figure in the Christianisation of Anglo-Saxon England, she was abbess in several convents and recognised for the wisdom that drew kings to her for advice.

The source of information about Hilda is the Ecclesiastical History of the English People by Bede in 731, who was born approximately eight years before her death. He documented much of the Christian conversion of the English.

Æthelberht (/ˈæθəlbərt/; also Æthelbert, Aethelberht, Aethelbert or Ethelbert; Old English: Æðelberht [ˈæðelberˠxt]; c. 550 – 24 February 616) was King of Kent from about 589 until his death. The eighth-century monk Bede, in his Ecclesiastical History of the English People, lists him as the third king to hold imperium over other Anglo-Saxon kingdoms. In the late ninth century Anglo-Saxon Chronicle, he is referred to as a bretwalda, or "Britain-ruler". He was the first Anglo-Saxon king to convert to Christianity.

Æthelberht was the son of Eormenric, succeeding him as king, according to the Chronicle. He married Bertha, the Christian daughter of Charibert I, king of the Franks, thus building an alliance with the most powerful state in contemporary Western Europe; the marriage probably took place before he came to the throne. Bertha's influence may have led to Pope Gregory I's decision to send Augustine as a missionary from Rome. Augustine landed on the Isle of Thanet in east Kent in 597. Shortly thereafter, Æthelberht converted to Christianity, churches were established, and wider-scale conversion to Christianity began in the kingdom. He provided the new church with land in Canterbury, thus helping to establish one of the foundation stones of English Christianity.