Example image of eyePlorer eyePlorer map for 'Computus': Calculation Computation Gregorian calendar Latin Middle Ages Easter Equinox Full moon Lunar month Julian calendar Orthodox Church Paschal Full Moon Ecclesiastical full moon Easter controversy Polycarp Pope Pope Anicetus Smyrna Asia (Roman province) Church History (Eusebius) Leavening agent Polycrates of Ephesus Anatolius of Laodicea Pope Dionysius of Alexandria First Council of Nicaea Epact Metonic cycle Cyril of Alexandria Pope Theophilus of Alexandria Coptic calendar Dionysius Exiguus Anno Domini Hippolytus of Rome Victorius of Aquitaine Gaul Synod of Whitby Bede Alcuin Charlemagne Aloysius Lilius January 1 New moon Intercalation February 29 Month Tropical year Modulo operation Common Era Golden number (time) Christopher Clavius