Originally Posted by
Enkidoh
And because of the religious aspects of baptism (that person isn't known by a deity until they're officially given the rites) it's easy to see how a nameday gained more prominience than the actual birth, because socially at least, that person did not exist in the eyes of God (or gods, for non Juedo-Christian cultures which practiced similar religious rites) until they were baptised into the church and given a baptised name, literally, their 'naming day', and thus, did not exist socially either.