Historical Context
Nicomedia was an imperial residence under Diocletian, and its Christian community stood at the center of the persecution that intensified in the early fourth century. The synaxarion remembers a great number of Christians of the city who suffered in these years, including the multitude burned within a church and a series of named martyrs put to death by varied means. Zeno, Chariton, and Archontius are numbered among these Nicomedian martyrs, distinguished in the commemoration by the manner of their deaths.