There is some information on Easter algorithms here, with links to more: http://www.smart.net/~mmontes/ec-cal.html. Specific algorithms are discussed here (linked from above): http://www.smart.net/~mmontes/ortheast.html
Some church history background on arriving at the method of calculating Easter: http://www.oca.org/pages/orth_chri/calendar/paschaarticle.htm And dates of Easter ("Pascha") for the next few years: http://www.oca.org/pages/orth_chri/calendar/feasts.htm. Perhaps that could be used to double check your algorithm. Someone mentioned that Easter would only fall during March or April; it's worth noting that in 2002, Orthodox Easter happened to fall on May 5, and in 2005 it will fall on May 1. Eastern Orthdoxy does comprise the second largest single body of Christians worldwide, after the Roman Catholics. If DateTime::Event ever includes any other "movable feasts" such as Pentecost or Ascension that are a consistent offset from the date of Easter, it would be nice to have some sort of flag to indicate which easter they should be based on. Thanks, Wes Sheldahl Rick Measham <[EMAIL PROTECTED]> on 03/24/2003 03:38:41 PM To: [EMAIL PROTECTED] cc: [EMAIL PROTECTED] Subject: Re: ANNOUNCE: DateTime::Calendar::Julian 0.03 At 11:13 AM -0500 24/3/03, [EMAIL PROTECTED] wrote: >I'm not sure what exactly this means as far as naming goes, but at a >minimum I would hope both formulas for Easter would be included and given >equal prominence with regard to naming. Dave, I'm certainly glad you raised >the question. :-) Easter in the Orthodox world for both new Calenderists and old is determined from the Astronomical Full Moon. Currently I only have a formula for calculating the 'Official' full moon. Once I get my hands on a good formula (from a reputable source) I'll be adding Orthodox Easter to DateTime::Event::Easter. The default will still be Easter as it is celebrated by the larger number of celebrants (basically Western countries), which is using the 'Official' Paschal Full Moon. If you, or anyone else, has a good (reputable) formula for this, I'd love to get it. Cheers! Rick
