^The notation Old Style or (OS) is sometimes used to indicate a date in the Julian Calendar (which is used by churches on the "Old Calendar"). The notation New Style or (NS), indicates a date in the Revised Julian calendar (which is used by churches on the "New Calendar").
^"At Comana in Pontus during the reign of Emperor Antoninus, St. Hermias, a soldier. Being miraculously delivered from many horrible torments, he converted his executioner to Christ, and made him partaker of the crown which he was first to receive by being beheaded."[4]
^His name is absent in the Synaxaristes and the Menaia, but it is recorded in the Byzantine Calendar.
^"At Rome, St. Petronilla, virgin, disciple of the blessed apostle Peter. She refused to marry Flaccus, a nobleman, and was granted three days for deliberation. She spent these days in fasting and in prayer, and on the third day, after having received the Sacrament of the Body of Christ, she yielded up her soul.[4]
^"At Aquileia, the holy martyrs Cantius, Cantian, and Cantianilla, members of one family, which belonged to the illustrious line of the Anicii. For their attachment to the Christian faith, they were condemned to capital punishment with their tutor, Protus, in the time of Emperors Diocletian and Maximian."[4]
^On June 18th, 1700, Tsar Peter the Great published an Ukase (imperial edict) that made a resounding appeal for the propagation of the Orthodox faith in Siberia and China. In response to the Ukase of 1700, Philothei (Leschinsky) of Kiev was chosen as the Metropolitan of Tobolsk and All Siberia (1702-1711), long since a center of missionary operations, in order to "lead the natives in China and Siberia to the service of the true and living God." He built 37 churches and personally accounted for the baptism of 40,000 Siberian tribesmen by 1721.
(in Greek) Συναξαριστής. 31 Μαΐου. ECCLESIA.GR. (H ΕΚΚΛΗΣΙΑ ΤΗΣ ΕΛΛΑΔΟΣ).
Russian Sources
(in Russian)13 июня (31 мая). Православная Энциклопедия под редакцией Патриарха Московского и всея Руси Кирилла (электронная версия). (Orthodox Encyclopedia - Pravenc.ru).