January 12 in Eastern Orthodox liturgical calendars is a feast day and a day of commemoration of saints and martyrs. Although some Orthodox churches use the Revised Julian Calendar and others use the
June 16 (Eastern Orthodox liturgics)
…Forty Martyrs of Rome, by fire. Hieromartyr Tigrius, Priest, and Martyr Eutropius, Reader, of Constantinople (404) (see also: January 12) Saint Mnemonios, Bishop of Amathus in Cyprus (4th century…
Martyrdom of St. Tatiana of Rome (Menologion of Basil II, 10th century)