Bede Is the Only Witness

Nearly everything anyone knows about this synod comes from a single chapter of Bede's Ecclesiastical History, written some sixty years afterwards by a monk of Wearmouth and Jarrow who was firmly committed to the Roman side. There are no acts, no letters from participants and no independent account. The speeches Bede gives to Colman and Wilfrid are compositions in the manner of ancient historians, and the exchange about the keys of the kingdom is the kind of decisive closing line that historians of every period have supplied to their heroes.

This does not make the synod fictional. That a meeting took place, that Oswiu decided for the Roman Easter and that Colman withdrew are supported by the general course of events. What is uncertain is the drama: how the arguments actually ran, how close the decision was, and whether the participants understood it as the epochal choice between two Christian worlds that Bede presents.

Later writing made it more epochal still. The synod has often been described as the moment a Celtic church was absorbed by a Roman one, a framing that assumes two organised bodies where there were differences of custom within one communion. Historians of early medieval Britain have been dismantling that picture for decades. The atlas records the synod as a real decision about Easter and the tonsure, and flags the larger story built on top of it as the work of later interpreters.