Patrick Geary

Patrick J. Geary, who first came to the Institute as a Member in the School of Historical Studies in 1990–91, joined the School as a Professor in January 2012. He is a leading historian of the Middle Ages whose research has opened new ways to understand, interpret, and define the medieval past. His work extends over a vast range of topics in medieval history, both chronologically and conceptually―from religiosity to language, ethnicity, social structure, and political organization.

We are probably all familiar with the AncestryDNA advertisement for its genetic testing service in which a man states that he and his family had...

Historians have debated for centuries the magnitude, nature, and impact of population movements from the borders of the Roman Empire into its heart between the fourth and seventh centuries. In recent years, geneticists have begun to attempt to...

Few historical questions have so fascinated historians as the fall of the Roman Empire or, in the more fashionable modern parlance, its “transformation” into something altogether different, namely independent kingdoms ruled by successors of...