department of History
roinn na staire

School of History,
National University of Ireland, Galway

Roinn na Staire,
Ollscoil na hÉireann, Gaillimh

M.Phil. (Medieval Studies), University College, Dublin, 1977.

Pre-Doc. (Medieval History, Medieval Latin), Ludwig-Maximilians-Universität, München, 1977-79.

Scholar, School of Celtic Studies, Dublin Institute for Advanced Studies, 1979-80.

Ph.D., University College, Galway, 1985.

Ph.D Thesis Title: De ratione conputandi: a seventh- century Hiberno-Latin computistical tract. De ratione conputandi: a seventh- century Hiberno-Latin computistical tract. De ratione conputandi: a seventh- century Hiberno-Latin computistical tract. An editio princeps, with introduction and technical commentary, of a seventh-century text which I discovered and which forms an important witness to the state of scientific knowledge in Early Ireland. The edition was accepted for publication by the Pontifical Institute of Mediaeval Studies, Toronto. [See Publications, below]

Deutscher Akademischer Austauschdienst ( DAAD) Scholarship for post-graduate research at the Albert- Ludwigs-Universität, Freiburg im Breisgau, and the Ludwig-Maximilians-Universität, München, 1977-79.

Research Scholarship at the School of Celtic Studies, Dublin Institute for Advanced Studies, 1979-80.

Research Fellowship from the Alexander von Humboldt-Stiftung, Bonn, for research in Germany, Jan.-Aug.,1985.

Grant from the Royal Irish Academy National Committee for Archaeology, to undertake manuscript research in Germany, Sept. 1987.

Grant from the Royal Irish Academy Bicentennial Research Trust, for manuscript research in Paris, July-Aug., 1988.

Grant from the Alexander von Humboldt- Stiftung , , for conference in Aachen, April 1992.

Grant from the Alexander von Humboldt- Stiftung , , for manuscript research in Berlin and Munich, July-Aug., 1993.

Grant from the Alexander von Humboldt- Stiftung, for manuscript research in Freiburg, Sankt Gallen and Schaffhausen, Switzerland, June- July 1996.

Research Fellowship from the Alexander von Humboldt-Stiftung, Bonn, for research in Germany, Sept. 1999 - Aug. 2000.

Member of the Board of the Irish Manuscripts Commission, 2010-

Elected Fellow of the Society of Antiquaries of London 2008

Elected Member of the Royal Irish Academy, March 1996.

External Examiner for Cambridge University ASNAC Tripos, 2010

Member (Mitglied) of the Internationales Mittellateinerkomitee in Heidelberg.

Chairman of the Editorial Committee of the Royal Irish Academy Dictionary of Medieval Latin from Insular Celtic Sources and the Royal Irish Academy/Irish Biblical Association Brepols Committee.

Founder-Member of the Medieval Academy of Ireland (Co-Editor of the Academy Journal, Peritia).

Vice-President, Societas Internationalis Pro Vivario.

Referee for the Alexander von Humboldt-Stiftung Research Prize.

Referee for Scholarship at Christ's College, Cambridge.

Occasional Reader for Speculum, Journal of the History of Astronomy, Cambrian Medieval Celtic Studies, and the Proceedings of the Royal Irish Academy.

University College Galway/ NUI Galway: Since 1980 I have been lecturing (in both Irish and English) on Early Irish and Early Medieval European History. Special courses have included 'Early Irish Law', ' Seventh-century Irish documents', ' Women in Early Irish Society', 'The development of Irish Script', etc.

In 1982 I gave a series of seminars on the seventh- century Old Irish Cambrai Homily to the staff and graduate students of the Dept of Old Irish, UCG.

University of Toronto: Visiting Professor in the Celtic Studies Programme, St Michael's College, during the Fall semester 1982, and again in the Fall of 1988.

Visiting Lecturer, Albert-Ludwigs-Universität, Freiburg im Breisgau, July 1996.

6th International Congress of Celtic Studies (Galway, July 1979)

Joint meeting of the Pontifical Institute of Mediaeval Studies and the University of Toronto Centre for Medieval Studies (Toronto, Oct. 1982)

Medieval & Renaissance Guild of the Universities of Winnipeg & Manitoba (Winnipeg, Nov. 1982)

7th International Congress of Celtic Studies (Oxford, July 1983)

Lecture on 'Douglas Hyde and Irish Ireland' at the AGM, Canadian Association of Irish Studies (CAIS), Ryerson Polytechnical Institute (Toronto, Feb. 1984)

Royal Irish Academy conference, 'Ireland & Insular Art, AD 500-1200' (Cork, Nov. 1985)

Conference on 'The knowledge of Greek in the West in the Early Middle Ages' (York University, Toronto, Nov. 1986)

Bede Centenary Conference (Durham, July 1987)

Guest Lecturer, Dept of English, University of Michigan, Ann Arbor, (Sept. 1988).

Guest Lecturer, Dept of Classics, University of Ottawa (Oct. 1988).

Conference on 'Science in Western & Eastern Civilization in Carolingian Times' (Aachen, Sept. 1991)

Lecture on 'Eoin Mac Néill',  Éigse na nGlinntí, (Glenarm, Co. Antrim, May 1993).

I gave the prestigious Carroll Lecture at Oxford University in Apr. 1994.

Lecture at the VI. Colloquium der Freiburger Sonderforschungsbereich 321 Projekt A 5 – Neue Methoden der Epenforschung (Freiburg i. Br., July 1996).

Lecture on 'The earliest Old Irish Glosses', University of Zürich, 8 June 2000.

'The Irish Computus in the 6th and 7th Centuries, Sources and Influences', Leeds International Medieval Congress (July, 2002)

'A Tale of Two Rules: Benedict and Columbanus',  Glenstal History Conference (Glenstal Abbey, Co. Limerick, Ireland, September 2002)

The Binchy Memorial Lecture: 'Wish you were here: Political Asylum Seekers, Refugees and Scholars in Early Ireland',  The Burren Law School (Ballyvaughan, Co. Clare, Ireland, May 2003)

'Ireland of the Welcomes - a Medieval Perspective', Integrating Ireland Annual General Meeting (Dublin, June, 2003)

O'Donnell Lecture: 'The First Century of Anglo-Irish Relations (AD 600 - AD 700), NUI, Galway, 2004

'Saving Civilisation: The Irish Contribution', Dublin University Early Irish Scoiety (Dublin, April, 2004)

'The Irish Wandering Scholars/ Gli Eruditi Irlandesi Erranti', organised by Il Semestre Irlandese (Angera, Italy, June, 2004

Co-Editor of Peritia, Journal of the Medieval Academy of Ireland. Sixteen volumes of the Journal have appeared to date.

General Editor of the Echternach Series in Codices Illuminati Medii Aevi, published by Edition Helga Lengenfelder, München. These are colour microfiche facsimiles, with introductions and commentary, of important Insular decorated manuscripts. Vol. 1 (CIMA 9) appeared in 1988, and Vol. 30 appeared in 1994 [See Publications].

Sole Editor of the Royal Irish Academy's New History of Ireland, Vol. 1. In this first volume of the Royal Irish Academy's multi-volume A New History of Ireland a wide range of scholars have produced studies of Ireland's archaeology, art, culture, geography, geology, history, language, law, literature, music, and related topics. Initial chapters examine geography and the physical environment, neolithic, bronze-age, and iron-age Ireland, and Ireland up to 800. Society, laws, church, and politics are all analysed separately as are architecture, literature, manuscripts, language, coins, and music. The volume is brought up to the twelfth century with chapters, amongst others, on the Vikings, Ireland and its neighbours, and opposition to the High-Kings. This is the first truly comprehensive and authoritative account of Irish history from the dawn of time down to the coming of the Normans in 1169.

Chair of the Editorial Board of the Royal Irish Academy Dictionary of Medieval Latin from Insular Celtic Sources .

Co-Editor (with T.C. Barnard & K. Simms) of 'A Miracle of Learning': Studies in manuscripts and Irish learning. Essays in honour of William O'Sullivan. Ashgate (Aldershot 1998).

Consultant-Editor for Brian Lalor, Encyclopaedia of Ireland (Gill & Mcmillan, 2003)

Books 

FORTHCOMING: Whitley Stokes (1830-1909): the lost Celtic notebooks rediscovered, (Four Courts Press, winter 2010)
Whitley Stokes was described as 'the greatest of living Celtic philologists'.  the discovery, by Professor Dáibhí Ó Cróinín, NUI Galway, of all Stokes's 150 working Celtic notebooks, unnoticed since 1919 in the Universirty Library, Leipzig, has only now revealed the extent of Stokes's astonishing industry in his later years, and makes available the manuscript notebooks that Stokes used during a lifetime of research in Celtic studies. Four Courts Press 

Computus and its Cultural Context in the Latin West, AD 300 - 1200, Immo Warntjes & Dáibhí Ó Cróinín (eds), in the series Studia Traditionis Theologiae - Explorations in Early and Medieval Theology (Brepols 2010) 
This publication is the proceedings of the 1st International Conference on the Science of Computus in Ireland and Europe, Galway, 14 -16 July 2006. The conference was organised by the Foundations of Irish Culture project, directed by Dáibhí Ó Cróinín, and drew together international scholars interested in computus, astronomy and related subjects in the period AD 400-850. 

Royal Irish Academy New History of Ireland, Vol. 1, Prehistoric & Early Medieval Ireland, (Editor and Contributor), OUP, Oxford 2005. 1219 pp + 140 plates

Early Irish History and Chronology. Four Courts Press. Dublin 2003. Xi 228 pp. ISBN 1-85182-635-1 Four Courts Press 

Eachtra Phinocchio, translated by Pádraig Ó Buachalla (Dublin 1933); rev. and corrected ed., with illustrations by Roberto Innocenti, Coiste Litríochta Mhúscraí: Baile Mhic Íre (Co. Cork 2003). 142 pp. ISBN 0-95445-54-01..

The Songs of Elizabeth Cronin, Irish Traditional Singer. Four Courts Press (Dublin 2000). The first complete collection of songs, in Irish and English, by a traditional singer, with 2-CD set of original field recordings.

Early Medieval Ireland, 400-1200. Longman History of Ireland, Vol. 1 xvi 379 pp. This is the first volume in a new 6-volume series on Irish history to be published by Longman (London/New York 1995).

Psalterium Salabergae. Staatsbibliothek zu Berlin – Preußischer Kulturbesitz – MS. Hamilt. 553. Codices Illuminati Mediii Aevi 30. 23 pp colour microfiche (München 1994).

Latin Paleography, Antiquity and the Middle Ages = English translation [with David Ganz] of Bernhard Bischoff, Paläographie des römischen Altertums und des lateinischen Mittelalters. xi 291 pp. Cambridge University Press (Cambridge 1990).

Evangeliarium Epternacense (Universitätsbibl. Augsburg, Cod. I.2.4o2) Evangelistarium (Erzbischöfliches Priesterseminar St. Peter, Cod. MS. 25). Codices Illuminati Medii Aevi 9. 45 pp. colour microfiche (München 1988).

Cummian's Letter 'De controuersia Paschali', together with a related Irish computistical tract 'De ratione conputandi' [part 1 jointly with Maura Walsh]. xi 243 pp. Pontifical Institute of Mediaeval Studies, Texts & Studies 86 (Toronto 1988).

The Irish Sex Aetates Mundi. Edition, with introduction, translation, notes & commentary, of an important Middle Irish biblical-historical tract. xii 180 pp. Dublin Institute for Advanced Studies (Dublin 1983).

Articles Book Chapters & Reviews

1.  'Myles na gCopaleen agus an Ghaeilge', Nua Aois 5 (1975) 43-47 [A discussion of the Irish writings of Flann O'Brien aka Myles na gCopaleen]

2.  'A poem to Toirdhealbhach Luinneach Ó Néill', Éigse 16 (1975-6) 50-66 [An edition, with historical introd., translation, and commentary, of a poem in Classical Modern Irish]

3.  Review-article of M. McNamara, The Apocrypha in the Irish Church (Dublin 1975), in Éigse 16 (1975-6) 348-365.

4.  Review of Basil Iske, The Green Cockatrice (Dublin 1978), in Éigse 17 (1978-9) 577-578.

5. Review of Joan Radner (ed), Fragmentary Annals of Ireland (Dublin 1978), in Éigse 18 (1980) 143-145.

6. 'An Old Irish gloss in the Munich Computus', Éigse 18 (1981) 289-290.

7. 'The oldest Irish names for the days of the week?', Ériu 32 (1981) 95-114.

8. 'Mo-Sinu maccu Min and the computus at Bangor', Peritia 1 (1982) 281-295. 'Pride and Prejudice' [Review-article of T.J. Brown et al. (eds), The Durham Gospels, Early English Manuscripts in Facsimile 20 (Copenhagen 1981)], in Peritia 1 (1982) 352-362.

9. Review of M. Herren (ed), Insular Latin Studies: Papers on Latin texts and manuscripts of the British Isles: 550-1066 (Toronto 1979), in Peritia 1 (1982) 404-409.

10.  'Hiberno-Latin calcenterus', Peritia 1 (1982) 296-297.

11. 'Na mainistreacha agus an léann', in M. McNamara (eag.), An léann eaglasta in Éirinn a.d. 1000-1200 (Baile Átha Cliath 1982) 19-30.

12. Early Ireland. Sussex Educational Tapes (Sussex 1982) [with Charles Doherty, UCD].

13. 'A seventh-century Irish computus from the circle of Cummianus', Proceedings of the Royal Irish Academy 82 C 11 (1982) 405-430.

14. 'Early Irish annals from Easter tables: a case re-stated', Peritia 2 (1983) 74-86.

15. 'The Irish provenance of Bede's computus', Peritia 2 (1983) 229-247.

16. 'Sticks and stones', Peritia 2 (1983) 257-260.

17. 'Donatus. Finit Amen', [Review of Louis Holtz, Donat et la tradition de l'enseignement grammatical (Paris 1982)], in Peritia 2 (1983) 307-311.

18. 'A fragment of Irish annals', Peritia 2 (1983) 58.

19. Review of S. Keynes & M. Lapidge, Alfred the Great (Harmondsworth 1983), in Cambridge Medieval Celtic Studies 7 (1984) 121-122.

20. 'Rath Melsigi, Willibrord, and the earliest Echternach manuscripts', Peritia 3 (1984) 17-49.

21. Review [with G. Ó Tuathaigh] of P. de Brún et al. (eds), Folia Gadelica: Essays for R.A. Breatnach (Cork 1983), in Peritia 3 (1984) 585-589.

22. Léirmheas ar P. de Brún et al. (eag.), Folia Gadelica, in Irisleabhar Chumann Staire is Ársaíochta Chorcaí 90 Uimh. 249 (1985) 201-202.

23. Review of Vivien Law, The Insular Latin grammarians (Woodbridge 1982), in Studia Hibernica 22/23 (1982-3) 149-156.

24. 'A poet in penitential mood', Celtica 16 (1984) 169-174. [An edition of two 16th-c. Irish and Latin autograph poems, with facsimile of the manuscript].

25. Review of P.K. Ford (ed), Celtic folklore and christianity: Essays for W.W. Heist (Santa Barbara 1983), in Irish Historical Studies 24 No. 95 (May 1985) 396-399.

26. Review of R.P.C. Hanson, The life and writings of the historical St Patrick (New York 1983), in Irish Hist. Stud. 24 No. 95 (May 1985) 398-399.

27. '"New heresy for old" – Pelagianism in Ireland and the papal letter of 640', Speculum 60/3 (1985) 505-516.

28. Review of A.P. Smyth, Warlords and holy men: Scotland AD 80-1000 (London 1984), in Irish Hist. Stud. 24 No. 96 (Nov.1985) 357-359.

29. Review of M. Curran, The Antiphonary of Bangor (Dublin 1984), in Irish Hist. Stud. 24 No.96 (Nov.1985) 530-531.

30. Section on computistical texts in the Royal Irish Academy Bibliography of Celtic Latin Literature 400-1200 (Dublin 1985).

31. Review of P. Ó Riain (ed), Corpus genealogiarum sanctorum Hiberniae (Dublin 1985), in Jnl Cork Hist. & Arch. Soc. 91 (1986) 127-129.

32. 'New light on Palladius', Peritia 5 (1986) 276-283.

33. Review of Heinz Löwe (ed), Die Iren und Europa im früheren Mittelalter, 2 vols (Stuttgart 1982), in Peritia 5 (1986) 445-452.

34. Review of E.A. Thompson, Who was Saint Patrick? (Woodbridge 1985), in Britannia 18 (1987) 379-381.

35. 'Merovingian politics and Insular calligraphy: the historical background to the Book of Durrow and related manuscripts', in M. Ryan (ed), Ireland and Insular art A.D. 500-1200 (Dublin 1987) 40-43.

36. 'Is the Augsburg Gospel codex a Northumbrian manuscript?', in G. Bonner et al. (eds), Saint Cuthbert, his cult and his community to AD 1200 (Woodbridge 1989) 189-201.

37. 'The date, provenance, and earliest use of the writings of Virgilius Maro Grammaticus', in G. Bernt et al. (eds), Tradition und Wertung. Festschrift für Franz Brunhölzl (Sigmaringen 1989) 13-22.

38. 'Cummianus Longus and the iconography of Christ and the Apostles in early Irish literature', in D. Ó Corráin et al. (eds), Sages, saints and storytellers. Celtic studies in honour of James Carney (Maynooth 1989) 268-79.

39. 'Zur Frühzeit der irischen Mission in Europa', in J. Erichsen (ed), Kilian, Mönch aus Irland, aller Franken Patron. Exhibition Catalogue (München 1989) 49-56.

40. 'Early Echternach fragments with Old Irish glosses', in G. Kiesel & J. Schroeder (eds), Willibrord, Apostel der Niederlande, Gründer der Abtei Echternach (Echternach 1989) 135-43.

41. 'Würzburg Universitätsbibl., M.p.th.f. 61 and Hiberno-Latin exegesis in the VIIIth century', in A. Lehner & W. Berschin (eds), Lateinische Kultur im VIII. Jahrhundert . Traube Gedenkschrift (St Ottilien 1989) 209-16.

42. Historical introduction to S. Youngs (ed), The Work of Angels. Treasures of Insular Metalwork c. AD 600 to c. AD 900. British Museum Exhibition Catalogue (London 1990).

43. 'Cead pleanála á lorg ag file', Celtica 24 (1990) [= Festschrift Brian Ó Cuív] 456-60.

44. The "lost" Irish 84-year Easter table rediscovered', Peritia 6-7 (1987-8) [1990] 227-42 [with D. McCarthy].

45. Review of E.A. Thompson, Who was Saint Patrick?, in Peritia 6-7 (1987-8) [1990] 336-37.

46. 'The Irish missions', in Fabbri Bompani (ed), The Celts. Exhibition Catalogue for Palazzo Grassi Venice (Milan 1990) 659-62.

47. 'The Irish as mediators of antique culture on the continent', in P. Butzer & D. Lohrmann (eds), Science in Western and Eastern civilization in Carolingian times (Basel 1993) 41-52.

48. 'A monster in the Indian Ocean', Nederlands Theologisch Tijdschrift 49/1 (1995) 1-11 (with Jacqueline Borsje).

49. 'The Salaberga Psalter', in Cormac Bourke (ed), From the Isles of the North: Early Medieval Art in Ireland and Britain. Proceedings of the 3rd International Conference on Insular Art ... Belfast 1994 (Belfast 1996) 127-35.

50. 'Bernhard Bischoff (1906-91): a memoir', Peritia 10 (1996) 123-35.

51. 'Columbanus, the computistical writings', in Michael Lapidge (ed), Columbanus: the Latin writings. Studies in Celtic History (Woodbridge 1997) 264-70.

52. Reviews of the following books in the Belfast Linen Hall Review : J.R. Walsh & T. Bradley, A history of the Irish Church, 400-700 AD (Dublin 1991); – Seán Ó Lúing, Kuno Meyer, 1858-1919 (Dublin 1991); – Risteárd Ó Glaisne, Dúbhglas de hÍde (1860-1949) (Baile Átha Cliath 1991); – Janet & Gareth Dunleavy, Douglas Hyde: a maker of modern Ireland (Berkeley 1991); – Harold Mytum, The origins of Early Christian Ireland (London 1992); – Louis Gougaud, Christianity in Celtic lands (repr. Dublin 1992); – John Ryan, Irish monasticism (repr. Dublin 1992); – Liam de Paor, Saint Patrick's world (Dublin 1993); – Hugh Shields, Narrative singing in Ireland (Dublin 1993).

53. Review of J. Bately et al. (eds), A palaeographer's view: Selected papers of Julian Brown (London 1993), Early Medieval Europe 3/1 (1994) 73-75.

54. Review of Nancy Netzer, Cultural interplay in the eighth century: the Trier Gospels and the making of a scriptorium at Echternach (Cambridge 1994), in Peritia 9 (1995) 421-24.

55. Review of Otto Prinz, Die Kosmographie des Aethicus, Monumenta Germaniae Historica (München 1993), in Francia 23/1 (1996) 263-65.

56. 134 articles in the Artemis Verlag's Lexikon des Mittelalters (München 1977-99).

57. Review of Michael Gorman (transl), [Bernhard Bischoff], Manuscripts and libraries in the age of Charlemagne (Cambridge 1994), in Peritia 11 (1997) 416-18.

58. Review of Thomas Owen Clancy & Gilbert Márkus, Iona: the earliest poetry of a Celtic monastery (Edinburgh 1995), in Peritia 11 (1997) 422-25.

59. Review of Marina Smyth, Understanding the universe in seventh-century Ireland, Studies in Celtic History (Woodbridge 1996), in English Historical Review 113, No. 451 (Apr. 1998) 397-98.

60. Review of Charles Thomas, 'And Shall These Mute Stones Speak?' Post-Roman inscriptions in Western Britain (Cardiff 1994), in North Munster Antiquarian Jnl 36 (1995 [1998]) 61-65.

61. 'Lebar Buide Meic Murchada', in T. Barnard, D. Ó Cróinín, K. Simms (eds), 'A Miracle of Learning': Studies in manuscripts and Irish learning. Essays in honour of William O'Sullivan. Ashgate (Aldershot 1998) 40-51.

62. Review of Michele Camillo Ferrari, Sancti Willibrordi venerantes memoriam. Echternacher Schreiber und Schriftsteller von den Angelsachsen bis Johann Bertels. Publications de Cludem (Luxembourg 1994), in Journal of Medieval Latin 8 (1998) 221-23.

63. Review of Vivien Law, Wisdom, authority and grammar in the seventh century. Decoding Virgilius Maro Grammaticus. Cambridge University Press (Cambridge 1995), in Journal of Medieval Latin 8 (1998) 231-34.

64. Review of Richard Sharpe, A handlist of Latin writers of Great Britain and Ireland before 1540. Brepols (Turnhout 1997), in The Medieval Review, 98.01.07 [online review-journal].

65. Review of Michael Cahill, The first Mark commentary. OUP (Oxford 1998), in The Medieval Review 99.21.04.

66. 'The Old Irish and Old English glosses in Echternach manuscripts (with an appendix on Old Breton glosses)', in M.C. Ferrari, Jean Schroeder & Henri Trauffler (eds), Die Abtei Echternach, 698-1998 (Luxembourg 1999) 85-101.

67. Reviews of C.W. Jones, Bede, the schools and the computus (Aldershot 1994) Wesley M. Stevens, Cycles of time and scientific learning in medieval Europe (Aldershot 1995), in Peritia 12 (1998) 420-21, 422; review of Michael Herren, Latin letters in early christian Ireland (Aldershot 1996), in Peritia 12 (1998) 422-24; reviews of Joachim Lerchenmueller, 'Keltischer Sprengstoff': eine wissenschaftsgeschichtliche Studie über die deutsche Keltologie von 1900 bis 1945 (Tübingen 1997) Sabine Heinz (ed.), Die deutsche Keltologie und ihre Berliner Gelehrten bis 1945 (Frankfurt a.M. 1999) Joachim Fischer & John Dillon (eds), The correspondence of Myles Dillon (Dublin 1998) Horst Fuhrmann, 'Sind eben alles Menschen gewesen'. Gelehrtenleben im 19. und 20. Jarhhundert dargestellt am Beispiel der Monumenta Germaniae Historica (München 1996), in Peritia 12 (1998) 424-30.

68. 'Le cois a chéile a doirtear na héigse', Éigse 31 (1999) 36.

69. 77. Review of John J. Silke, Two abbots (Dublin 1997), Éigse 31 (1999) 177-81.

70. 'Bernhard Bischoff (20.XII.1906 - 17.IX.1991)', in Thomas O'Loughlin (ed), The scriptures in early medieval Ireland. Instrumenta Patristica 31 (Turnhout 1999) 205-15.

71. 'Bischoff's "Wendepunkte" fifty years on', Revue Bénédictine 110/3-4 (2000) 204-37.

72. ’Who was Palladius, ’First Bishop of the Irish’?’, Peritia, Journal of the Medieval Academy of Ireland 14 (2000) 205-37.

73. ’The earliest Old Irish glosses’. In Bergmann, R, Glaser, E., Moulin-Frankhänel, C. (eds), Mittelalterliche volkssprachlige Glossen. Heidelberg (2001) 7-31.

74. ’Ireland c. 1000’. In Urbanczyk, P. (ed), Europe around the year 1000. Institute of Archaeology & Ethnology, Polish Academy of Sciences. Warszawa (2001) 289-306.

75. ’A new seventh-century Irish commentary on Genesis’, Sacris Erudiri 40 (2001) 231-65.

76. ’Saint Patrick’. In A.J. Hughes & William Nolan (eds), Armagh, history and society. Dublin (2001) 43-62.

77. Review of Colmán Etchingham, Church organisation in Ireland, ad 650-1000 (Maynooth 1999), Peritia 15 (2001) 413-20.

78. Review of Seán Ó Lúing, Celtic Studies in Europe, and other essays (Dublin 2000), Peritia 15 (2001) 454-55.

79. Chapter 6 in Wendy Davies (ed), The Short Oxford History of the British Isles 2 . From the Vikings to the Normans (Oxford 2003) 168-200

80. 'Ireland AD 400-800' [Political narrative],  Royal Irish Academy New History of Ireland, Vol.1 (Oxford University Press, 2005)

81. 'Hiberno-Latin literature to AD 1169', Royal Irish Academy New History of Ireland, Vol.1. (Oxford University Press, 2005)

82. [With Peter Harbison & F.J. Byrne] Bibliography for the Royal Irish Academy New History of Ireland, Vol.1 (Oxford University Press, 2005)

83. Contributor to Dictionary of Irish Biography (Cambridge University Press (printed) and Royal Irish Academy (online), 2009)
    Articles: Tairdelbach Ua Conchobair (O'Connor, Turlough), Virgilius of Echternach, Virgilius Maro Grammaticus, Willibrord of Ráith Melsigi

84. Contributor to James S Donnelly (ed), Encyclopedia of Irish History & Culture , Thomson/Gale (Detroit 2004) 2 vols
    Articles:  Hiberno-Latin culture (pp 296-97), Religion: The coming of Christianity (pp 602-04)

85. Contributor to Seán Duffy (ed), Medieval Ireland, an encyclopaedia , Routledge (NY 2005)
    Articles: Armagh, Book of (pp 30-31), Christianity, conversion to (pp 82-83), Palladius (pp 360-61), Paschal Controversy (pp 367-68)

86.  'A tale of two Rules: Benedict and Columbanus', in Martin Browne & Colmán Ó Clabaigh, OSB (eds), The Irish Benedictines. A History, Columba Press (Dublin 2005) pp 11-24

87. 'The Kings Depart': The prosopography of Anglo-Saxon royal exile in the sixth & seventh centuries', University of Cambridge, ASNAC Quiggin Pamphlets on the Sources of Gaelic History 8, Cambridge 2007

88. 'Dionysius Exiguus in the Classroom', in J.W. Dauben, S. Kirschner, A. Kuehne, P. Kunitzsch & R. Lorch (eds), Mathematics Celestial and Terrestrial. Festschrift fuer Menso Folkerts zum 65. Geburtstag , Acta Historica Leopoldina (Halle, Saale 2008) 253-74

89. 'The Cathach and Domnach Airgid', in Bernadette Cunningham & Siobhán Fitzpatrick (eds), Treasures of the Royal Irish Academy (Dublin 2009) 1-9

90. Contributor to Michael F. Suarez, Sj, and H.R. Woudhuysen (eds), The Oxford Companion to the Book, OUP (Oxford 2010) 2 vols
    Articles: Irish script (p 825); Kells, Book of (p 842)

91. FORTHCOMING: Contributor to The History of the Irish Book, ( Oxford University Press): The Oxford History of the Irish Book is a major new series that charts the development of the book in Ireland from its origins within an early medieval manuscript culture to its current incarnation alongside the rise of digital media in the twenty-first century.
    Articles: Palaeography; scripts and their derivation; abbreviations; notae iuris; Tironian notae; history; the earliest Insular manuscripts; relationship with antiquity; Britain and western mainland European; The Echternach manuscripts; The Computus: Texts and Transmission; The Writings of Cummianus Longus al. Cummiam al. Cuimmíne Fota; Würzburg, Universitäatsb, M.ch.F.206; Boniface Gospels: Fulda, Landesbibl., Cod. Bonif. 3; Codex Sancti Pauli: Unterdrauberg, Carinthia, Kloster S. Pauli, 25.2.31 olim 25.d.86; Epistola Cyrilli; De ratione temporum; Cummian, De controversia paschali; De ratione conputandi