Contains the sections (called pericopes) of the Gospels assigned on a daily basis, as they are intended to be read on the respective day in the Mass. The background to this is that the assignment of the individual scriptural sections, which is now taken for granted, to individual days and festivals in the church year ("reading order") developed at the earliest from the 5th century onwards, beginning in Gaul. The distribution of the texts was first recorded in lists (see Capitulare) for reference before evangeliaries appeared from the 8th century onwards and offered the text of the individual pericopes. A truly comprehensize standardization of the reading order first emerged at the Council of Trent (1545-1563).