The first Christians didn't celebrate the birthday of Jesus; birthdays weren't considered a big deal in Jewish or early Christian culture. It was over one hundred years after the birth of Jesus that the church first suggested a solemn, respectful feast should be observed in honour of Jesus' birthday, and not until Julius 1st -who was pope from 337 to 352AD- that the date of 25th December was set for this "Feast of the Nativity".

richmondparkchurch.org.uk an evangelical pentecostal church in Boscombe, Bournemouth, Dorset, UK