Orthodox calendar: October 25 is the day of remembrance of St. Cosmas, Bishop of Maium, creator of the canonstranslated

21st Sunday after Pentecost.

Today, October 25, 2026, the Orthodox Church honors the memory of the martyr. Prova, Tarakha and Andronika (304); St. Cosmas, ep. Mayumsky, creator of the canons (c. 787); mts. Domniki (286); St. Martin the Merciful, bishop. Tursky (about 400); St. Amfilochiya, abbot of Glushitsky (1452); transfer from Malta to Gatchina of a part of the tree of the Life-giving Cross of the Lord, the Philermos Icon of the Mother of God and the gum of the hand of St. John the Baptist (1799); St. Joanna isp (1930); prmch. Lawrence (1937); sschmch. Alexander the Presbyter (1940); St. Nicholas in Spanish Metropolitan Alma-Ata (1955); Jerusalem (48), Yaroslavl-Smolensk (1642), Rudny (1687), and Kaluga (1748) icons of the Mother of God.

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The Monk Cosmas, Bishop of Maium, creator of the canons, originally from Jerusalem, was raised by the parents of the Monk John of Damascus, and together with their son received an excellent education.

When he reached adulthood, he entered one of the Palestinian monasteries, where he became famous for his monastic exploits. During the persecution of holy icons, the Monk Cosmas, together with the Monk John, came out in defense of Orthodoxy. They wrote many works against the iconoclasts.

In 743 Cosmas was installed...