Welcome to the Archivium Hibernicum website. Archivium Hibernicum is a refereed history sources journal, published annually by the department of modern history, National University of Ireland, Maynooth and St Patrick's College, Maynooth. It is the official organ of the Catholic Record Society, founded in 1911. The first issue of Archivium Hibernicum appeared in 1912, edited by James MacCaffrey (1875-1935), professor of ecclesiastical history in St Patrick's College Maynooth. Since 1973 it has incorporated the proceedings of the Irish Catholic Historical Committee and since 2001 it has published archival material produced by the Irish in Europe project in the department of modern history, NUI Maynooth.