Christmas Girls

- Feast established
The earliest known reference to the date of the nativity as December 25 is found in the Chronography of 354, an illuminated manuscript compiled in Rome. In the East, early Christians celebrated the birth of Christ as part of Epiphany (January 6), although this festival emphasized celebration of the baptism of Jesus.
Christmas was promoted in the Christian East as part of the revival of Catholicism following the death of the pro-Arian Emperor Valens at the Battle of Adrianople in 378. The feast was introduced to Constantinople in 379, and to Antioch in about 380. The feast disappeared after Gregory of Nazianzus resigned as bishop in 381, although it was reintroduced by John Chrysostom in about 400.