Decretum Magistri Gratiani (Corpus Iuris Canonici, Part 1)
The 'Decretum Gratiani' forms the first part of the Roman Catholic canon law, which was later aggregated in the Corpus Iuris Canonici. It is named after its author, the monk and jurist Gratian, who lived in Bologna in the first half of the 12th century. His main work, the Decretum (or: Concordia discordantium canonum), was probably written around 1140. For that, Gratian collected almost 4,000 texts of canon law content, including conciliar decisions (canones) and papal decisions (decretales), which he provided with his own commentaries (dicta). Gratian, who is regarded as the 'father of canon law', created with this extensive compilation a basic work for the later academic discussion of canon law. One of the most common editions of the Decretum Gratiani is the one by Emil Friedberg from 1879, which was made accessible within the framework of this project.