Feast of the Holy Protection of the Theotokos as kept in Greece on the anniversary of the OXI of 1940.
The Church of Greece in 1952 transferred the feast of the Protection of the Theotokos from October 1 to October 28, joining it to the national anniversary of the refusal of the Italian ultimatum in 1940, in thanksgiving for the protection of the Mother of God during the war.
The feast recalls the vision of Saint Andrew the Fool at Blachernae, who saw the Theotokos spreading her veil over the praying people.
Feast day
On the New Calendar, Protection of the Theotokos (Greek Observance) is commemorated on October 28. Churches on the Old (Julian) Calendar keep the feast on November 10 of the civil calendar.
Also commemorated on October 28

Stephen the Sabbaite
Venerable, Στέφανος ο Σαββαΐτης
Venerable Stephen the Sabbaite, hymnographer of the Lavra of Saint Sabbas.
Athanasios I of Constantinople
Hierarch, Αθανάσιος Α' Πατριάρχης
Saint Athanasios I, Patriarch of Constantinople, ascetic and reformer.
Kyriakos of Jerusalem
Hierarch, Κυριακός ο Ιερομάρτυς
Holy Hieromartyr Kyriakos, Patriarch of Jerusalem, who showed Saint Helen the place of the Cross, and his mother Anna.
New Martyrs of Melambes
Martyr, Αγγελής, Μανουήλ, Γεώργιος και Νικόλαος
Holy New Martyrs Angelis, Manuel, George and Nicholas of Melambes in Crete, beheaded at Rethymno in 1824.
Arsenios of Serbia
Hierarch, Αρσένιος Αρχιεπίσκοπος Σερβίας
Saint Arsenios, Archbishop of Serbia, successor of Saint Sava.