Bretha Déin Chécht

One such commentator deemed the text the anaicne diancecht ("exotic law of Dian Cécht").

[6]: 381 [3]: 5 The tract is attributed to Dian Cécht, a figure of Irish mythology who appears as the physician to the Tuatha Dé Danann, a band of euhemerized pre-Christian deities.

[6]: 381 [7] The Senchas Már carries a late and pseudo-historical preface, which details the codification and Christianization of the compilation by Saint Patrick and his commissioners.

Dian Cécht is explicitly listed as among the pre-Christian authors whose judgements were accepted because they did not contradict Christian teaching.

[8]: 234  For example, the six classes of tooth-injury (each with different fines) delineated in the Bretha Déin Chécht tell us something about the knowledge of dentistry in early medieval Ireland.