Monday 19 June 2023 – Neil Lecture Theatre, Trinity Long Room Hub

09:15: Welcome

09:30-11:00: Late Antiquity

Dan Mc Carthy (Dublin) – The date and provenance of the prologue attributed to Cyril by the headings to Prologus Sancti Cyrilli

Leofranc Holford-Strevens (Oxford) – Not St Martin on Easter

Carlo Cedro (Dublin) – The question of Easter lunar limits in Gennadius of Marseille’s Liber Ecclesiasticorum Dogmatum

11:30-13:00: Pre-Carolingian insular world

David Howlett (Oxford) – Quadrivium to trivium: computus in the modal composition of literary texts

Tobit Loevenich (Munich) – Introducing the Computus Einsidlensis

Eoghan Ahern (Liverpool) – The physical world and its operation in early insular thought

14:00-15:00: Post-Carolingian insular world

Anthony Harris (Cambridge) – The missing computi in Wormald’s Kalendars

Marilina Cesario (Belfast) – Terraemotus magni erunt: physical and metaphorical earthquakes in the British Isles

15:30-16:30: Databases

Thom Snijders (Utrecht) & Judith ter Horst (Dublin) – Database of computistical manuscripts and object oriented cataloguing (computus.lat; computus.tchpc.tcd.ie)

Tuesday 20 June 2023 – Neil Lecture Theatre, Trinity Long Room Hub

09:30-11:00: Visigothica

Ines Warburg (Buenos Aires) – An Argument on finding Hebraeorum et Christianorum Pascha attached to Book X of the Etymologiae

Immo Warntjes (Dublin) – Theodulf of Orléans and the Libellus annalis of 793

Patrick Marschner (Vienna) – A ‘Famous Question’ and a newly discovered manuscript. Vatican, BAV, Reg. lat. 1530 and its relation to other known witnesses of Claudius of Turin’s De sex aetatibus mundi

11:30-13:00: Carolingian world

Christian Schweizer (Dublin) – Dicuil’s advanced computistics

Paula Harrison (Galway) – An indivisible moment: temporal taxonomy in the De divisionibus temporum of Laon, Bibliothèque Municipale, MS 422

Francesco Stella (Siena) – Editions of computistic poems in the Corpus Rhythmorum Musicum

15:00-16:30: Chronology

Máirín MacCarron (Cork) – How did Bede know how old he was?

Mathew Clear (Dublin) – The development of the ‘Dionysiac’ Easter Table in eighth and ninth century Carolingian manuscripts

Philipp Nothaft (Princeton) – Computus naturalis and historical chronology in twelfth-century Lotharingia: a new source