The Holy 20,000 Martyrs of Nicomedia: At the beginning of the fourth century the emperor Maximian (284-305) gave orders to destroy Christian churches, to burn service books, and to deprive all Christians of rights and privileges of citizenship. At this time the bishop of the city of Nicomedia was St Cyril, who by his preaching and life contributed to the spread of Christianity, so that many members of the emperor’s court were also secret Christians.
Dorotheus, Mardonius, Migdonius the deacon and others were thrown into prison. Bishop Anthimus encouraged them by sending letters to them. One of the messengers, the Deacon Theophilus, was captured. They subjected him to torture, trying to learn where the bishop was hiding. The holy martyr endured everything, while revealing nothing. Then they executed him and also those whom the bishop had addressed in his letter. Though they were executed in different ways, they all showed the same courage and received their crowns from God.