
Institute for Studies of Illuminated Manuscripts in Denmark:
The Cisiojanus is a medieval composition of 24 hexametrical verses with a syllable for each day in the year. Its purpose is to memorize the most important feasts. The name is taken from the incipit Cisio Janus Epy... (Circumsision, January, Epiphany...). It originated probably in Northern Germany (Cologne or Aachen) in the 12th century, and spread to Eastern Europe and Scandinavia... After a Cisiojanus in the Speculum Humane Salvationis I have demonstrated how it is possible in some cases to reconstruct a calendar on basis of the Cisiojanus alone. In France was it not commonly known before the end of the 15th century, when vernacular versions began to circulate, mainly spread with the calendars in printed books of hours.Cisiojanus attributed to the Venerable Bede:
Cisio Janus Epiphaniis die dona magorum
Vincit ovans Agne nova Paulum lumina vertunt.
Februarius
Et purgata parens ad templum ducit Jesum
Sede doces sacra cum Petro Matthia gentes.
Martius
Evocat ad studium puerile Gregorius agmen
Eterni Patris gratum Marie tenet alvus.
Aprilis
Presulis Ambrosii laudes imitare sacerdos.
Et pellant equites Georgi more tyrannos.
Maius
Leta Crucis Helene reperit pia cura trophea
Vinea quam floret plebs Urbanum celebrabit.
Junius
Ardua solis equos trahis ad fastigia Vite
Agni monstrat onus sed Baptistes tibi Petre.
Julius
Jam Marie sobolem Baptista salutat in alvo
Afacit Herodes nece Jacobum Zebedeum.
Augustus
Vincula post Petri patitur Laurentius ignes
Impie meche dabas meretrici colla Joanni.
September
Egidius celebrat Marie virginis ortum
Quo combusta die Solymorum menia narrant.
October
Christe tuas leges Celtis Dionysius affert
Scriptis Luca tuis fruimur docuit Simo Persas.
November
Pannonius docuit Gallorum Martius oras
Fertilis Elisabeth cantat Turingia laudes.
December
Post casti sacra Nicolei longissima nox est
Fausta dies celebrat tibi Christum virgine natum.







