Naumowicz, Józef (Wydawnictwo Archidiecezji Warszawskiej, 2010)
The article explains why the Church in Jerusalem long preserved a separate liturgical tradition, celebrating the birth and baptism of Christ together as Epiphany on January 6th, and Hypapante on February 14th. It also sets out the arguments used by Justinian in his work Defestis (562) in which he ordered the introduction to Palestine of the feast of the Nativity on December 25th and Hypapante February 2nd. Finally it shows why Jerusalem initially resisted to introduce the feast-day reform of Justinian.
