The medieval ecclesiastical calendar rested on the foundation of two interlocking calendrical cycles, which were represented by the Julian calendar, with its 28-year cycle of weekdays, and by a 19-year cycle of ‘epacts’ for tracking the phases of the Moon. Monks and clerics who sought to learn more about the scientific background of these cycles,Continue reading “On the new edition of Grosseteste’s Compotus”
Tag Archives: Alfred Lohr
Compotus, Correction and Regulation
Fresh from the recent conference at Georgetown University, on the dynamic coupling of aspectus and affectus, the next Ordered Universe colloquium takes another theme close to Grosseteste’s heart: calendrical reform and its related subjects, time, astronomy, medicine, as well as the dating of Easter. The colloquium takes place next week on the 19th and 20thContinue reading “Compotus, Correction and Regulation”