of Reformers by Friends, Disciples and Foes (Aldershot: Ashgate, 2008) Calvin and his influence, 1509-2009, edited by Irena Backus and Philip Benedict (Oxford: Oxford University Press, 2011) L'argument hérésiologique : l'Église ancienne et les Réformes, XVIe-XVIIe siècles : actes du colloque de Tours, 10-11 septembre 2010, edited by Irena Backus, Philippe Büttgen and Bernard Pouderon (Paris: Beauchesne, 2012) "'Semipelagianism': The Origins of the Term and its Passage into the History of Heresy", Journal of Ecclesiastical History, 65:1 (2014), pp. 25–46 Leibniz: Protestant Theologian (Oxford: Oxford University Press, 2016) References External links https://www.unige.ch/ihr/fr/equipe/professeurs-honoraires/backus/ 1950 births 2019 deaths Alumni of Somerville College, Oxford Academic staff of the University of Geneva