Dear Fabio, I think the Spencer-Jones algorithm is now widely accepted as defining when Easter will be observed (by both the Roman Catholic Church and the Anglican Church for the foreseeable future).
What is interesting is just how often it produces the same date as the naive rule of 'the first Sunday after the first full moon after the equinox'. This year is clearly an exception because the algorithm and the naive rule give different answers. Do you know how often the algorithm and the naive rule differ? You are allowed to choose your own defintion of 'Sunday'! Ciao Frank --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
