- Professor of Classics and History, University of California at Berkeley (from 1978 to 1986)
- Professor of History, Royal Holloway College, University of London (from 1975 to 1978)
- Reader, University of Oxford (from 1973 to 1975)
- Lecturer in Medieval History, Merton College, Oxford (from 1970 to 1975)
- Special Lecturer in Late Roman and Early Byzantine History (from 1970 to 1973)
- Senior Research Fellow, All Souls College (from 1970 to 1975)
- Junior Research Fellow, All Souls College (from 1963 to 1969)
- Prize Fellow, All Souls College (from 1956 to 1963)
- Undergraduate, New College, Oxford (from 1953 to 1956)
- Rise of Christianity and the transition from the ancient to the early medieval world
- Currently working on the problems of wealth, poverty and the shift from an ancient to a medieval view of society in the late antique and early medieval periods
- Body and Society (New York, 1988: reprint with Introduction 2008)
- The Rise of Western Christendom: 200-1000 A.D. (Oxford 1996; 2nd revd edn, 2003)
- Poverty and Leadership in the Later Roman Empire (Hanover, New Hampshire, 2002)
Augustine of Hippo (London 1967, new edn. With epilogue, 2000)
- Augustine of Hippo (London 1967, new edn. With epilogue, 2000)
- Authority and the Sacred (Cambridge, 1995)
- Power and Persuasion (Madison, Wisc. 1992)
- Religion and Society in the Age of Saint Augustine (London, 1972, 2nd edn., New York, 1989)
- Society and the Holy in Late Antiquity (Berkeley, 1982)
- The Cult of the Saints (Chicago, 1981)
- The Making of Late Antiquity (Harvard, 1978)
- The World of Late Antiquity (London, 1972)
- Link to Publications
- Fellow, American Academy of Arts and Sciences
- History of late antiquity, Byzantium, and the Early Middle Ages, such as ‘Understanding the Dark Ages’ and ‘Saints and Sinners in Early Byzantium’
- Kluge Prize (2008).
- President’s Award for Distinguished Teaching (2006).
