I'm involved with a project at work, and maybe somebody out there can help. My employer's annual calendar is very PC and includes major holidays of various religions and cultures, because, like a lot of high-tech firms, we have a culturally diverse work force. Since last year's edition had a few mistakes in listing the Christian holidays, I volunteered to help gather info for the 2004 edition.
Apparently the editors had been using whatever info they could find on the web, and some of it was old or wrong; so I'm looking for official or at least reliable sources for the data I turn in. Documenting the Catholic holidays is not hard: the Catholic Almanac has a list. Can anybody point to some reliable source for a list of Orthodox holidays?
Also, what days would Protestant Christians consider important enough to list: just Easter and Christmas? Pentecost? Maybe Reformation Sunday? Obviously Protestant customs are going to be all over the map; but advice from our non-Catholic readers (if any) would be a boon. Thanks!