The Christianization of Europe

Overview

Post-Roman Europe did not begin as one uniformly pagan territory. Christian communities survived in former Roman provinces, while some Germanic rulers followed non-Nicene forms of Christianity. The baptism of Clovis became an important symbol of Frankish Nicene identity, but its exact date is disputed. Royal conversion created alliances and opportunities for bishops without documenting the immediate beliefs of all subjects.

The Roman mission to Kent in 597 joined an environment already shaped by British Christianity, Irish missions, trade, and royal marriage. Bede’s later narrative highlights ecclesiastical unity and providence. Irish and Anglo-Saxon missionaries, including Columbanus and Boniface, connected monasteries, bishops, and rulers across the continent. Disputes over calendars, discipline, and episcopal authority show that conversion also involved negotiation among existing Christian traditions.

Charlemagne’s Saxon campaigns reveal a coercive dimension, with conquest and penalties for resisting baptism. Other conversions relied more on preaching, kinship, commerce, or royal persuasion. Cyril and Methodius’s ninth-century mission used a Slavic written and liturgical language, challenging assumptions that worship needed to be exclusively Latin or Greek. Their legacy developed through later disciples and changing political settings.

The adoption of Christianity in Rus’ around 988 linked the Kyiv polity to Byzantine worship and culture; later chronicles give memorable narratives that are not contemporary transcripts. Scandinavian monuments, graves, churches, and laws show layered change. Christianization therefore means more than baptism: it includes new burial practices, calendars, marriage rules, sacred spaces, and habits that could take generations to become established.

Missionary narratives often frame a ruler’s decision as the turning point of a people’s religious history. Burial archaeology, local law, and pastoral complaints may show much slower change. Continued older practices are not necessarily evidence of complete refusal of Christianity; people could combine new affiliations with habits that clergy were still attempting to reshape.