Changed Mass to Latin
He ordered that the Mass of the church be changed from Greek to Latin, his native tongue. He was well-liked by Marcia, the mistress of Emperor Commodus, who would release imprisoned Christians at his request.Baptism
He decreed that any water can be used in emergency baptisms. He forbade the Laity from baptising except in emergency.Easter
Up to this time, the western churches observed the Last Supper on the Roman Easter day, while the eastern churches continued to observe it on the Jewish Passover day. Victor was known to be intolerant of this difference.All of these kept the 14th day of the month as the beginning of the Paschal [Passover] festival, in accordance with the Gospel, not deviating in the least but following the rule of the faith. (Eusebius, The History of the Church from Christ to Constantine)He ends with:
"So I, my friends, after spending 65 years in the Lord's service and conversing with Christians from all parts of the world, and going carefully through all Holy Scripture, I am not scared of threats. Better people than I have said: 'We must obey God rather than men'" (Ibid.)This letter made Pope Victor furious, who reacted by ordering the excommunication of all the bishops of Asia, all the churches of Asia, and any others who refused to adopt the Easter day. He later recanted his excommunications upon the persuasion of Iranaeus.
180-192: Roman Emperor, Commodus
193: Roman Emperor, Pertinax
Roman Emperor, Didius Julianus
193-211: Roman Emperor, Septimius Severus