Ireland References Bibliography Blaney, Roger; Presbyterians and the Irish Language. Ulster Historical Foundation, 2012. . Connolly, S.J.; Oxford Companion to Irish History. Oxford University Press, 2007. . Duffy, Seán; Medieval Ireland An Encyclopedia. Routledge, 2005. . Duffy, Seán; The Concise History of Ireland. Gill & Macmillan, 2005. . Why the Reformation failed in Ireland by Cambridge University Press Religion and politics English Reformation History of Christianity in Ireland Anti-Catholicism in Ireland Anti-Catholicism in Northern Ireland Anti-Catholicism in England