Why Does Easter Move?

Happy Easter! 

Easter, despite it originally being the festival of the ressurection of Jesus, I would say is now more about Bunnies, Chicks, Chocolates and Egg hunts! And for weeks before the Easter period you can often see masses upon masses of sweet treats upon many aisles of supermarkets, and of course, what most of the world go mad for, and I personally cannot stand, Cadbury's Cream Eggs. You know the ones that I mean, those sickly eggs with the even more sickly gooey centre! Yuck!

Anyway, back on subject, I have often wondered why unlike any other Christian celebrated holidays does Easter move? So me being me, and liking to know everything having a thirst for knowledge, decided to read up on why this is a moveable holiday.

Long Story Short, it appears that the Easter holidays follow the phases of the moon, or rather to be exact  is usually celebrated on the first Sunday after the full moon on or after 21 March. Easter generally falls between 22 March and 25th April.

Based on the paschal full moon (for those interested The name "paschal" is derived from "Pascha", a transliteration of the Greek word, which is itself a transliteration of the Hebrew pesach, both words meaning Passover), it was decided by the bishops that Easter Day would fall on the next full moon after the spring equinox. 

This is mainly as Easter must fall on a Sunday as this was the apparent day that Jesus was resurrected.
But since the full moon can be on different days depending on the different time zones, it was decided that the full moon is always determined to be the 14th day of the lunar month.
Even though the spring equinox can occur on March 20 the Church fixes the spring equinox as March 21.
So there we have it!

Happy Easter Folks!