RT Article T1 Duking it Out in the Arena of Time: Chronology and the Christian–Jewish Encounter (1100–1600) JF Medieval encounters VO 22 IS 1/3 SP 213 OP 235 A1 Nothaft, C. Philipp E. LA English PB Brill YR 2016 UL https://www.ixtheo.de/Record/1562064452 AB This article surveys the historical points of intersection between the study of chronology and the polemical encounter with Judaism in medieval Latin Christendom. Particular attention will be paid to the work of Roger Bacon, who viewed chronology as a tool that could furnish proof for Christianity, e.g., by supporting a Christological interpretation of the prophecies in the book of Daniel. A second focus will be on the reception and study of the Jewish calendar among Christian scholars and how it both influenced exegetical thought about the chronology of the Last Supper and informed efforts to improve the ecclesiastical calendar. With regard to the latter, it will be argued that the competition with Judaism and the Jewish calendar was an important motivating factor in the debates that led to the Gregorian calendar reform of 1582. K1 Chronology : Roger Bacon : Gregorian calendar : Jewish calendar DO 10.1163/15700674-12342222