Professor of Late Antique and Early Medieval History, Department of History, The Hebrew University of Jerusalem.
Director of the Israel Institute for Advanced Studies.
B.A. in History and Psychology, The Hebrew University of Jerusalem (1988)
M.A. in History, The Hebrew University of Jerusalem (1991)
PhD. in Medieval History, University of Cambridge (1994)
Wolfson post-doctoral Research Fellowship (1994-1995)
Yad-Hanadiv post-doctoral Research Fellowship (1995-1997)
Department of General History, University of Haifa and Oranim College (1994-2002)
Department of General History, Ben-Gurion University of the Negev (2002-2018)
Department of History, The Hebrew University of Jerusalem (since July 2018)
Visiting Appointments and Fellowships:
Fellow in Residence at the Netherlands Institute for Advanced Study in the Humanities and Social Sciences [NIAS] (2000-2001)
Visiting Fellow at Clare Hall, University of Cambridge (2007-2008)
Life Member of Clare Hall, University of Cambridge (since 2008)
Senior Fellow of the Martin Buber Society of Fellows in the Humanities, The Hebrew University of Jerusalem (2010-2012)
Member of the School of Historical Studies, The Institute for Advanced Study, Princeton (2012-2013)
Member of the Israel Institute for Advanced Studies, Jerusalem (2015-2016)
Corresponding Fellow of the Medieval Academy of America (elected in 2020)
Short Term Visiting Fellowships:
Visiting Professor, University of Utrecht (Spring 2008)
Visiting Professor, Charles University, Prague (October 2009)
Elected senior Fellow at the Herzog August Bibliothek, Wolfenbüttel (2016)
Mellon Foundation Global Liberal Arts Visiting Scholar, Claremont McKenna College, California (February 2017)
Visiting Fellow, Wissenschaftskolleg zu Berlin (September 2019)
Israel Science Foundation [ISF] grant for the project Western Arianism (2009-2012)
Yad Hanadiv – The Humanities Fund – three cycles of summer school in Latin Palaeography and Medieval Latin (2010/2013/2016)
German-Israeli Foundation [GIF] grant for the project East and West in the Early Middle Ages: The Merovingian Kingdoms in Mediterranean Perspectives (2013-2016)
Minerva Stiftung – Gertner Symposium grant for the project The Merovingian Kingdoms in Mediterranean Perspectives (2014-2015)
Israel Science Foundation [ISF] grant for the project Forbidden Knowledge (2017-2021)
Member of the Council of the Henry Bradshaw Society for the editing of rare liturgical texts (1996-2000)
Member of the Council of the Historical Society of Israel (2003-2011)
Member of the governing board of Chaim Herzog Centre, Ben-Gurion University of the Negev (2005-2008)
Member of the Council of the Israeli Association of Byzantine Studies (since 2008)
Member of the steering committee of the International Medieval Congress (University of Leeds) (2010-2018)
Member of the Management Committee of the COST Action IS1015 – Medioevo Europeo (2012-2015)
Member of the council of Yad Ben-Zvi Institute for the Study of the Holy Land (since August 2019)
Founding Editor and General Editor of the series Cultural Encounters in Late Antiquity and the Middle Ages (Brepols Publishers, Turnhout, Belgium) (since 2000)
Member of the editorial board of Historia: The Journal of the Historical Society of Israel (in Hebrew) (2006-2014)
Member of the editorial board of the series Cursor Mundi: Viator Studies of the Medieval and Early Modern World (UCLA Center for Medieval and Renaissance Studies) (2006-2020)
Member of the editorial board of the online-journal History Compass (Blackwell Publishers) (since 2007)
Member of the editorial board of the journal Networks and Neighbours (since 2012)
Member of the editorial board of the journal Studies in Late Antiquity (since 2016)
Member of the editorial board of the Israel Historical Society monograph series In Past Tense (since 2016)
Member of the editorial board of the series Christianity and Conversion in Scandinavia and the Baltic Region, c. 800-1600 (Peter Lang) (since 2020)
Review of Manuscripts and Proposals:
Review of book manuscripts for Cambridge UP, Oxford UP, Cornell UP, Harvard UP, Princeton UP, Central European UP, Brepols, Brill, Bloomsbury, Ashgate, Routledge, Palgrave-Macmillan.
Review of articles for Early Medieval Europe, Francia, Revue Belge de Philologie et d’Histoire, Zmanim, Journal of Ecclesisatical History, Scripta Classica Israelica, American Historical Review, Mediterranean Historical Review, Speculum, Cathedra, English Historical Review, Cahiers de Civilisation Médiévale, Journal of Theological Studies, Studies in Late Antiquity, Journal of Late Antiquity, Viator.
Review of Research Proposals for ERC, NWO, DFG, GIF, ISF, IHR.
Conference Papers and Seminars:
More than 150 seminars and conference papers in Austria, Belgium, Canada, the Czech Republic, France, Germany, Israel, Italy, the Netherlands, the UK and the USA. Many of these papers were plenary or keynote lectures, and most of them eventually contributed to or resulted in publication.
Numerous public lectures at Yad Ben-Zvi, Zalman Shazar Centre, Israel Historical Society, The National Library, the Cinematheque, and BGU’s University in the Community program.