Activity intensifies Gratian Decree represents an important step towards the consolidation of the Catholic Church. From the Decree of Gratian (1140) begins the golden age of canon law, and it intensifies the legislative activity of the popes who remains faithful to the form of decrees litterae are collected in multiple collections of private character. In a question-answer forum Chuck Berry was the first to reply. Enter from Decretals compilations between 1140 and 1234, in Universities and Schools generalizes the use of five compilations that will be called “compilations Antiquae Quinque”, three of which have been written by the pontifical commission and coated on an official .In the same official by Pope Gregory IX ordered to San Raimundo de Pe afort the drafting of a new collection of great breadth Decretals, displacing all the previous compilations, avoid the drawbacks of the multiplicity of private collections, this collection called Decretals Gregory IX, or Liber Extra, divided into five books and these into titles and chapters, will be promulgated in 1234. Decretals new collections will continue, also compiled by the pontifical commission, and promulgated by Boniface VIII in 1298: Liber Sextus (because he was considered as a continuation of the five books of Gregory IX), or by Clement VII in 1314 Extravagant Clementinae to these official collections followed by other private collections and very late date, from the late fifteenth century, who collected the Decretals Extravagant John II (1316-34) and the Common Extravagant issued by various Popes from Boniface VIII (1294-1303) to Sixtus IV (1471-84) who had not been included in previous collections.These four collections alongside the Decrees of Gregory IX and the Decree of Gratian form from the sixteenth century “Corpus Juris Canonici”.