Now in common use, since 1580 Corpus Iuris Canonici (“collection of canon law”) has been the official designation of a compilation of ecclesiastical legal collections and law codes from circa 1140 to the end of the 15th century. The Corpus Iuris Canonici is the official summary of older canon-law measures (Latin, canones) adapted during the age of “classic canon law” (1140-1350) and of new law created for the Catholic Church by papal replies to legal inquiries (decretals). It consists of five works: the Decretum…