Example image of eyePlorer eyePlorer map for 'Byzantine calendar': Orthodox Church Ecumenical Patriarchate of Constantinople Russian Orthodox Church Bible Incarnation (Christianity) Septuagint August 31 September 1 Monk Presbyter 6th century Indiction Metonic cycle Solar cycle (calendar) Computus Easter Crucifixion of Jesus Nativity of Jesus 7th century Great Britain Western Europe 10th century Jesus 14th century Anno Domini Dionysius Exiguus Eastern Orthodox liturgical calendar Julian calendar Calends February 24 February 29 Leap year Middle Ages 1597 1626 1728 Patriarch Cyril of Constantinople 1453 1492 1700 Peter I of Russia 2000 Church Fathers Masoretic Text Clement of Alexandria Hippolytus of Rome March 25 Panodorus of Alexandria August 29 Egyptian calendar