Donagh Davis is a PhD candidate at the Department of Political and Social Sciences (SPS) at the European University Institute, Florence. His interests include historical sociology, the sociology of revolutions, and contentious politics. His doctoral research is a case study of the early twentieth-century Irish independence struggle. The dissertation considers the episode in relation to different levels of causation, and their interaction – from long-term structural factors, to medium-term conjunctural circumstance, and short-term contingency and volition. His most recent publication is ‘Revolution’ which appeared in Gregory Claeys (ed.) Encyclopedia of Modern Political Thought Vol. II (2013), Thousand Oaks, CA: CQ Press, pp. 694–700.