During the third century, an oppressive Roman Emperor called Emperor Claudius II had made it a capital punishment (death) to worship and serve Christ.
He had decreed the Romans to serve and worship his gods, and deprived the young Roman soldiers of getting married.
But an elderly Christian had stood his ground for his faith and had insisted on serving Jesus Christ and preaching the love of God to the young soldiers. This was considered treason against the government.
He was arrested, sentenced to death and jailed. In the last weeks of his life in the prison, the jailer (prison commander) who observed that he was very learned and possessed very good Christian character, brought his blind daughter to him to be giving her lessons.