Historical Context
The martyrdom is set during the reign of the emperor Maximian (284-305), in the period of the great persecutions associated with Diocletian and Maximian, dated by the calendars to approximately 286-305. Christian soldiers serving in the Roman army were a recurring target of these persecutions, since military service brought a direct demand to participate in the imperial and pagan cult.
The three soldiers belonged to the regiment of the tribune Campanus, who, according to the synaxarion, was sent with his troops to the city of Chalcedon on the Asian shore of the Bosphorus opposite Byzantium. There the soldiers were required to make pagan sacrifice, and the refusal of Solochon, Pamphamer, and Pamphalon set them apart for trial.