Pope Julius I dies in Rome. It is believed that Pope Julius I is the one who originally set the celebration of Jesus' birthday on December 25, coinciding with the Roman feast of Saturnalia. Pope Julius I was also very important in promoting the orthodox doctrines established in the Council of Nicea.
At this early date, not everyone accepts all of the Nicene teachings. Julius was able to help those bishops who did agree with the Nicene teachings, such as aiding Athanasius of Alexandria in dealing with adherents of the Arian heresy.