True, Easter and the related holidays timed relative to it -- Ash Wednesday, Good Friday, Pentecost1 -- do move around on every calendar, because Easter is not timed according to one calendar, but ties two calendars together. (Well, three calendars are involved, but only two at a time.) While the calculation of the date of Easter is described using only the Gregorian calendar (or Julian calendar for Orthodox churches), the reason it's timed that way is (or was originally) to connect it to Passover ... so the complexity of the calculation, and the way it does move around, is tied to its having one foot in the Hebrew calendar and one foot in a Christian calendar.
So yes, Easter et al. are the exceptions, actually jumping around regardless of which calendar you view them in, but the reason for that is that their motion reflects how two whole calendars shift relative to each other. (Off the top of my head, I don't know whether there are other holidays that bridge two different calendars like that.)
1Yeah, Shavuot is also sometimes called Pentecost ... Christian Pentecost took its name from that. So apparently we've been like that wrt swiping others' symbols and names for thing right from the start. sigh
Goal: connect it to Passover but don't actually admit the validity of the Hebrew calendar for determining when that is, so sometimes Easter and Passover are a month apart. I completely understand how that kind of thing happened; "not-invented-here syndrome" runs deep. But still...
(no subject)
True, Easter and the related holidays timed relative to it -- Ash Wednesday, Good Friday, Pentecost1 -- do move around on every calendar, because Easter is not timed according to one calendar, but ties two calendars together. (Well, three calendars are involved, but only two at a time.) While the calculation of the date of Easter is described using only the Gregorian calendar (or Julian calendar for Orthodox churches), the reason it's timed that way is (or was originally) to connect it to Passover ... so the complexity of the calculation, and the way it does move around, is tied to its having one foot in the Hebrew calendar and one foot in a Christian calendar.
So yes, Easter et al. are the exceptions, actually jumping around regardless of which calendar you view them in, but the reason for that is that their motion reflects how two whole calendars shift relative to each other. (Off the top of my head, I don't know whether there are other holidays that bridge two different calendars like that.)
1Yeah, Shavuot is also sometimes called Pentecost ... Christian Pentecost took its name from that. So apparently we've been like that wrt swiping others' symbols and names for thing right from the start. sigh
(no subject)
(no subject)
(no subject)
Goal: connect it to Passover but don't actually admit the validity of the Hebrew calendar for determining when that is, so sometimes Easter and Passover are a month apart. I completely understand how that kind of thing happened; "not-invented-here syndrome" runs deep. But still...
(no subject)
Aye, "But still..." sigh