[Evangelical]

Dec 25 was chosen as the day to celebrate Christs birth because it happens to be the day pagans celebrated the birthday of the Sun. Now suppose that it was not european but middle eastern paganism that Christianity "replaced". Then the date of Christmas would be 20 November which is Mohammeds birthday.

With Easter an interesting fact is that unlike Christmas the date changes each year. This is because the date coincides with the phases of the moon which comes from paganism.

Little children are taught that Easter Sunday is when Christ died but the date changes each year because of the moon. Instead of fixing a date which can be deduced from scripture as sometime in April the early Christians decided to go with pagan moon cycles.