ASNC doctoral student Tony Harris writes:
On Monday 28th October ASNaC was treated to a visit by Immo Warntjes, Lecturer in Irish Medieval History at Queen’s University, Belfast. Immo originally worked as a postgraduate researcher in the Foundations of Irish Culture Project at the National University of Ireland, Galway, where he also completed his Ph.D. under Professor Dáibhí Ó Cróinín in 2007. Immo’s primary field of interest is early medieval scientific thought but he is probably best known for his work in the field of computus (medieval time-reckoning). His PhD thesis later became his monograph and is published as The Munich Computus: Text & Translation. Irish computistics between Isidore of Seville and the Venerable Bede and its reception in Carolingian times (Stuttgart: Steiner 2010). In addition to this work, Immo has also been extensively involved with the International Conference on the Science of Computus which happens every two years in Galway (next one in 2014)
Immo kindly spent last Monday in the department where he met with members of staff and graduate students and his day culminated in a paper for the ASNC graduate seminar entitled 'Willibrord the computist: harbinger of the Carolingian renaissance?'. The paper provided significant food for thought and argued quite convincingly that the 7th century missionary saint Willibrord had a much more far reaching influence on the study and application of medieval European computistics than had previously been thought.
There are a number of ASNC post-graduate students who are either working directly in the field of medieval computus or in fields that are allied to it. Computus is an area that is under-researched and there is a general dearth of workshops, courses and scholarly material outside of original manuscript sources. It was therefore very kind of Immo to run a two hour computus workshop on the Monday morning (thoughtfully arranged by Dr Rosalind Love) and this was well attended by some twenty students from the faculty. During the workshop Immo discussed the ‘Easter Controversy’ which had occupied the thoughts and minds of the early church fathers and is something that, even today, gives rise to disagreement. Immo also discussed the basis for the calculation of the date of Easter and the differences between Roman and Celtic computistical methods. Latin terminology and manuscript evidence was presented along with relevant historical background. The workshop was extremely enjoyable and highly interactive with lots of opportunities for students to participate. Immo introduced the various types of Easter tables (Celtic and Roman) focusing on differences with interpretation and calculation in a session which was highly informative and provided a significant amount of useful information. Immo came to medieval studies with a background in mathematics and he has an impressive amount of experience in the area of computistics. His delivery and content was both clear and concise as well as engaging, incisive, and directly relevant to graduate study.