In the famous Rohan Book of Hours is this procedure exploited to the extreme. The alternating colors are not always entirely consequent because the first name of a new column or page can be written in the same color as the last preceding name, causing a shift in the rhythm of the following days, when the month is divided after the 15th. The procedure becomes obvious when two calendars are listed alongside each other, as here. In normal books of hours is the month divided over two pages, 1.-15. on recto, and the remaining days on the verso, as in Les Belles Heures de Jean de Berry. When it is written out in full is it alone a question of aesthetics, to make lines look of equal lenght.
Long names has an initial, short names the full title.
S. Berthelemy followed by Saint loys. Copying a calendar Comparative entries from two other calendars are quoted to illustrate the transitional development from the 14th to the 15th century. The date 1409 is therefore misleading - the calendar was at that time antiquated and obsolete. It was also understood when Les Grandes Heures was written, and a few corrections were therefore made, to give it a more modern appearance, either on demand of Jean de Berry, or by intervention of his scribe. Before going into comparative studies is it important to keep in mind that medieval scribes were improvising during the act of copying.