The original form of this calendar would have determined Easter using precise astronomical calculations based on the meridian of Jerusalem.M. Milankovitch, "Das Ende des julianischen Kalenders und der neue Kalender der orientalischen Kirchen", Astronomische Nachrichten 200, 379–384 (1924).Miriam Nancy Shields, "The new calendar of the Eastern churches ", Popular Astronomy 32 (1924) 407–411 (page 411 ). This is a translation of M. Milankovitch, "The end of the Julian calendar and the new calendar of the Eastern churches", Astronomische Nachrichten No. 5279 (1924). However, all the Eastern Orthodox countries that subsequently adopted the Revised Julian calendar adopted only that part of the revised calendar that applied to festivals falling on fixed dates in the Julian calendar. The revised Easter computation that had been part of the original 1923 agreement was never permanently implemented in any Orthodox diocese.
The original form of this calendar would have determined Easter using precise astronomical calculations based on the meridian of JerusalemM. Milankovitch, "Das Ende des julianischen Kalenders und der neue Kalender der orientalischen Kirchen", Astronomische Nachrichten 200, 379–384 (1924).Miriam Nancy Shields, "The new calendar of the Eastern churches ", Popular Astronomy 32 (1924) 407–411 (page 411 ). This is a translation of M. Milankovitch, "The end of the Julian calendar and the new calendar of the Eastern churches", Astronomische Nachrichten No. 5279 (1924). However, all the Eastern Orthodox countries that subsequently adopted the Revised Julian calendar adopted only that part of the revised calendar that applied to festivals falling on fixed dates in the Julian calendar. The revised Easter computation that had been part of the original 1923 agreement was never permanently implemented in any Orthodox diocese.