The perpetual calendar
in [Math]
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From: John Atkinson on 19 Feb 2010 04:12 Halmyre wrote: > On 19 Feb, 04:58, "Ray O'Hara" <raymond-oh...(a)hotmail.com> wrote: >> "Andrew Usher" <k_over_hb...(a)yahoo.com> wrote in message >> >> news:65e2a2e7-1aef-4872-97a7-360fa6a10a6a(a)q21g2000yqm.googlegroups.com... >> >> >> >> >> >>> Owing to the inconveniences which attend the shifting of the calendar, >>> and attempting in passing to create a more perfect Church calendar, I >>> say the following: >>> 1. That Christmas day should be fixed to a Sunday, and this should be >>> the Sunday between Dec. 21 and 27, and that in all civilised countries >>> the Monday should be considered a holiday, or the Saturday if not >>> normally. >>> 2. That similarly Easter day should be fixed to the Sunday which is 15 >>> weeks following Christmas. >>> 3. That the leap year rule be changed to have a leap year occur every >>> fourth save that it be delayed when the leap year would start on a >>> Thursday, and that this gives 7 leap years in every 29, which is near >>> enough. >>> 4. That the perpetual calendar can be made, by considering the first >>> day of the year of weeks to occur on the Sunday after the Assumption, >>> and if this is the first possible calendar day, it is called week 1, >>> and otherwise week 2, and every year runs through week 53. And this >>> calendar ensures that everything can be fixed to a day of a certain >>> week, in particular the American Thanksgiving must be made 31 days >>> before Christmas. >>> 6. This is surely the best possible arrangement that can be made, >>> without disturbing the cycle of weeks or that of calendar days >>> inherited from the Romans. >>> Andrew Usher >> The calendar has several sources, not just the Rome and the onewe habe in >> fine as it is > > I just wish they'd settle on a date for Easter and be done with it. > But, the whole point of Easter is that it has a full moon! You might as well scrap the whole thing otherwise. Or are you suggesting that we only take holidays at Easter every four years or so, when your “settled” date just happens to correspond with the right lunar phase? J.
From: James Hogg on 19 Feb 2010 04:34 John Atkinson wrote: > Halmyre wrote: >> On 19 Feb, 04:58, "Ray O'Hara" <raymond-oh...(a)hotmail.com> wrote: >>> "Andrew Usher" <k_over_hb...(a)yahoo.com> wrote in message >>> >>> news:65e2a2e7-1aef-4872-97a7-360fa6a10a6a(a)q21g2000yqm.googlegroups.com... >>> >>> >>> >>> >>> >>> >>>> Owing to the inconveniences which attend the shifting of the >>>> calendar, and attempting in passing to create a more perfect >>>> Church calendar, I say the following: 1. That Christmas day >>>> should be fixed to a Sunday, and this should be the Sunday >>>> between Dec. 21 and 27, and that in all civilised countries the >>>> Monday should be considered a holiday, or the Saturday if not >>>> normally. 2. That similarly Easter day should be fixed to the >>>> Sunday which is 15 weeks following Christmas. 3. That the leap >>>> year rule be changed to have a leap year occur every fourth >>>> save that it be delayed when the leap year would start on a >>>> Thursday, and that this gives 7 leap years in every 29, which >>>> is near enough. 4. That the perpetual calendar can be made, by >>>> considering the first day of the year of weeks to occur on the >>>> Sunday after the Assumption, and if this is the first possible >>>> calendar day, it is called week 1, and otherwise week 2, and >>>> every year runs through week 53. And this calendar ensures that >>>> everything can be fixed to a day of a certain week, in >>>> particular the American Thanksgiving must be made 31 days >>>> before Christmas. 6. This is surely the best possible >>>> arrangement that can be made, without disturbing the cycle of >>>> weeks or that of calendar days inherited from the Romans. >>>> Andrew Usher >>> The calendar has several sources, not just the Rome and the onewe >>> habe in fine as it is >> I just wish they'd settle on a date for Easter and be done with it. >> >> > But, the whole point of Easter is that it has a full moon! You might > as well scrap the whole thing otherwise. Or are you suggesting that > we only take holidays at Easter every four years or so, when your > �settled� date just happens to correspond with the right lunar phase? My Book of Common Prayer makes things easy by pointing out that "the moon referred to in the definition of Easter Day is not the actual moon of the heavens, but the Calendar Moon, or Moon of the Lunar Cycle, which is counted as full on its fourteenth day, reckoned from the day of the Calendar New Moon inclusive." Also, in a Bissextile Year "the number of Sundays after Epiphany will be the same, as if Easter Day had fallen one day later than it really does." What could be simpler? -- James
From: Ruud Harmsen on 19 Feb 2010 05:14 Fri, 19 Feb 2010 10:34:10 +0100: James Hogg <Jas.Hogg(a)gOUTmail.com>: in sci.lang: >What could be simpler? The Jewish calendar. -- Ruud Harmsen, http://rudhar.com
From: James Hogg on 19 Feb 2010 05:19 Ruud Harmsen wrote: > Fri, 19 Feb 2010 10:34:10 +0100: James Hogg <Jas.Hogg(a)gOUTmail.com>: > in sci.lang: > >> What could be simpler? > > The Jewish calendar. Is Pesach easier to calculate than Easter? -- James
From: Ruud Harmsen on 19 Feb 2010 06:47
Fri, 19 Feb 2010 11:19:32 +0100: James Hogg <Jas.Hogg(a)gOUTmail.com>: in sci.lang: >Ruud Harmsen wrote: >> Fri, 19 Feb 2010 10:34:10 +0100: James Hogg <Jas.Hogg(a)gOUTmail.com>: >> in sci.lang: >> >>> What could be simpler? >> >> The Jewish calendar. > >Is Pesach easier to calculate than Easter? Yes, because it's always on the same date (like all the other Festive Days) in the Jewish calendar. 14-21/22 Nisan. http://nl.wikipedia.org/wiki/Pesach -- Ruud Harmsen, http://rudhar.com |