The subject of this episode is ‘Historical Constitutions’. Discussants are Jill Harries (Professor Emerita of Ancient History, University of St Andrews), Colin Kidd (Professor of Modern History, University of St Andrews) and Harshan Kumarasingham (Senior Lecturer in British Politics,  University of Edinburgh and co-convenor of Arthur Berriedale Keith Forum on Commonwealth Constitutionalism). The episode is chaired by John Hudson (Professor of Legal History, University of St Andrews).