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Misc. computistics

Results (16)
Associated data

Bobbio computus

prose

Latin language

Calculatio Albini magistri

prose

Alcuin

Alcuin

(d. 804)

English clergyman, scholar and poet.

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Computistical didactic text of 776, based on an earlier, Irish version of 675. A reworking of the Pseudo-Dionysian Argumentum XIIII, the text offers easy methods by which one can determine the months and weekdays of the Easter full moon. In one manuscript, it is attributed to Alcuin.

Latin language

Cologne prologue

prose

Latin prologue to an 84-year cycle, probably written in the late 4th century and preserved in manuscripts (ultimately) of Irish provenance or Irish affiliations. Cummian, in his Paschal letter, may be drawing on this text when he discusses the lunar limits for the Passion, Burial and Resurrection of Christ. It has been suggested that the prologue may be the ‘heretical’ computistical treatise to which Bede refers in his letter to Plegwin.

Latin language

Computus Graecorum sive Latinorum

prose

A compilation of computistical and astronomical material, which survives in a number of recensions produced between the 8th/9th and 12th centuries.

Latin language

De bissexto (Pseudo-Alcuin)

prose

Alcuin

Alcuin

(d. 804)

English clergyman, scholar and poet.

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Short computistical treatise on the bissextus, formerly attributed to Alcuin but now considered to be an anonymous work. In the manuscripts, it is closely associated with another short tract known as De saltu lunae. It consists of two parts, usually headed De bissexto and Aliud argumentum de bissexto.

Latin language

De concordia mensium atque elementorum (Byrhtferth's diagram)

diagram

prose

Byrhtferth of Ramsey

Byrhtferth of Ramsey

(c. 970–c. 1020)

English monk and scholar

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Elaborate diagram of the ‘harmony of the months and elements’, which once occupied a single page in a largely computistical manuscript compiled by Byrhtferth of Ramsey (c. 970–c. 1020). The original of this compilation is lost, but two independent ‘copies’ made in the early 12th century remain. The diagram aligns different aspects of time (solstice, equinox, months, seasons, ages of man), the zodiac and the four elements, and in this way, introduces a number of key concepts relevant to computus. In the Oxford manuscript, the diagram comes right at the end of a section (ff. 3r-7v) which contains a miscellaneous variety of short texts and visual designs related to computus, and directly precedes another section (ff. 8r-15v) containing tables and texts on computus.

Latin languagediagrams

De ratione conputandi

prose

Latin language

De ratione temporum uel de compoto annali

prose

A collection of computistical material compiled, according to Dáibhí Ó Cróinín, in southern Ireland before 658. Its textual boundaries are not always explicitly defined in scholarly discussions. It is here regarded as at least encompassing the material corresponding to three items of the Sirmond computus (items 3-5 as numbered by Jones) and versions attested elsewhere. This includes the tract known as De divisionibus temporum.

Latin language

De saltu lunae

prose

Latin computistical treatise on the saltus lunae, a lunar ‘leap’ day which is omitted in calculations to bring the solar and lunar calendars back into alignment. In manuscripts, it is attributed to Columbanus, but his authorship seems unlikely as the text favours a Roman Easter reckoning, being based on the 19-year cycle of Dionysius Exiguus.

Latin language

De saltu lunae (Pseudo-Alcuin)

prose

Alcuin

Alcuin

(d. 804)

English clergyman, scholar and poet.

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Computistical treatise formerly attributed to Alcuin but now considered to be an anonymous work. In the manuscripts it is usually found together with De bissexto.

Latin language

De sollemnitatibus et sabbatis et neomeniis

prose

Jerome

Jerome

(c.340s–420 (Prosper))

Church father, born in Dalmatia, and biblical scholar who translated the greater part of the Bible into Latin and whose labours led to the Vulgate version.

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A short Latin treatise on the Jewish observance of festivals and its relevance for the Paschal question. It comes in the form of an epistle or disputatio addressed by a certain peregrinus to an unspecified venerabilis papa, but lacks a subscription. In some manuscripts, it is ascribed to Jerome. There is evidence to suggest that it is, in fact, a Hiberno-Latin or Irish-influenced text of seventh-century date.

Latin language

De temporibus (Bede)

prose

Bede

Bede

(d. 735)

English monk at Monkwearmouth-Jarrow; author of the Historia ecclesiastica gentis Anglorum and works on various religious and theological subjects.

Short, influential and widely disseminated Latin tract on the topic of time-reckoning, written c.703 by the Northumbrian monk Bede. Bede came to revisit this topic at greater length when in c.725 he wrote De tempore rationum.

Latin languagetime-reckoning

De temporum ratione (Bede)

prose

Bede

Bede

(d. 735)

English monk at Monkwearmouth-Jarrow; author of the Historia ecclesiastica gentis Anglorum and works on various religious and theological subjects.

Influential Latin treatise by the Northumbrian monk Bede on the methods of calculating time and the construction of a Christian calendar (computus). The work was preceded by Bede's briefer treatment of the same subject known as De temporibus.

Latin language

Munich computus

form undefined

Anonymous [Munich computist]Anonymous ... Munich computist

Entry reserved for but not yet available from the subject index.

Latin language

Seven-book computus

prose

Extensive Frankish collection of computistical and astronomical matter that arose from a meeting of clerical scholars at Aachen in 809 and further work possibly supervised by Adalhard of Corbie. It was completed by 810 or 812. The work is arranged in seven books.

Latin languageastronomycomputuschronology

Three-book computus

prose

Extensive Frankish collection of computistical and astronomical matter, which builds on the Seven-book computus of 809-812, was created under the supervision of bishop Arno of Salzburg and was completed in 818.

Latin languageastronomycomputuschronology

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