Original sentence: After a visit home, and feeling more than a little exiled, Sullivan returned to Rome to teach Ecclesiology at the Gregorian University, an academic ministry in which he would serve for the next 37 years, until his own mandatory retirement at the age of 70 in 1992
Edited sentence: After a visit home, and feeling more than a little exiled, Sullivan returned to Rome to teach Ecclesiology at the Gregorian University, an academic ministry in which he would serve for the next 36 years, until his own mandatory retirement at the age of 70 in 1992.Discovering that professors at either the Biblical Institute or the Oriental Institute could direct dissertations at the Gregorian, Sullivan wrote under the direction of Fr.Ignacio Ortiz de Urbina at the Oriental Institute, who had written on Theodore