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

1. The Hebrew calendar was lunisolar.
2. Easter has roots in a pre-Christian fertility festival, the goddess of which lent the namesake–hence the eggs and rabbit imagery. So while people celebrate a specific (Christian) event, the festival is not tied to said event 1:1, nor the day it happened on. — Relatedly, Christmas has roots in the winter solstice, and borrows a lot of elements from it rather than just Jesus’ birth, but is similarly a celebration of that event among Christians. There is some material pointing to his actual birth being elsewhere in the year (early fall, if I remember right).