If Easter, like Christmas, is based on a specific event, why is the date not fixed and is instead based on the moon?

Question

If Easter, like Christmas, is based on a specific event, why is the date not fixed and is instead based on the moon?

In: Other

Answer 1

It is based on an older calendar. The current calendar system we use that is based on the Suns movement in the sky is relatively new and was introduced during the height of the Roman Empire. Before this we used calendars that were based on the Moons movement instead. There were a few different variants but in general the year started with a new moon around spring equinox. Easter is based on the Jewish holiday Pesach which uses this older calendar type. But Christmas is a more modern holiday that is based on the modern calendar.