 In the later Middle Ages both Meister Eckhart of Hochheim (c.1260–c.1328) and Nicholas of Cusa (1401–64) were sympathetic to Eriugena and familiar with his Periphyseon. Cusanus owned a copy of the Periphyseon. Interest in Eriugena was revived by Thomas Gale’s first printed edition of 1687. However, soon afterwards, Thomas Gale’s first printed edition, the Periphyseon, was listed in the first edition of the Index Librorum Prohibitorum, and remained on it, until the Index itself was abolished in the 1960s. In the nineteenth century, Hegel and his followers, interested in the history of philosophy from a systematic point of view, read Eriugena rather uncritically as an absolute idealist and as the father of German idealism. The first critical editions of his major works were not produced until the twentieth century (Lutz, Jeauneau, Barbet). A conference organized by John O’Meara and Ludwig Bieler in the Royal Irish Academy, Dublin, in 1970 led to the founding of the Society for the Promotion of Eriugenian Studies (SPES) which has been active in developing Eriugena studies at a high scholarly level by hosting international colloquia and publishing the proceedings. The most recent meeting of SPES, “Eriugena and Creation” took place at the University of Chicago in 2011 (Otten &amp;Allen 2014).