From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=0.6 required=5.0 tests=BAYES_20,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f7be1,be6b7e036aa9236c X-Google-Attributes: gidf7be1,public X-Google-Thread: 11390f,be6b7e036aa9236c X-Google-Attributes: gid11390f,public X-Google-Thread: 101deb,be6b7e036aa9236c X-Google-Attributes: gid101deb,public X-Google-Thread: 1014db,be6b7e036aa9236c X-Google-Attributes: gid1014db,public X-Google-Thread: 1164ba,be6b7e036aa9236c X-Google-Attributes: gid1164ba,public X-Google-Thread: 1094ba,be6b7e036aa9236c X-Google-Attributes: gid1094ba,public X-Google-Thread: fa0ae,be6b7e036aa9236c X-Google-Attributes: gidfa0ae,public X-Google-Thread: 103376,be6b7e036aa9236c X-Google-Attributes: gid103376,public From: pg@sanitas.stortek.com (Paul Gilmartin) Subject: Re: Friday 13th, try it yourself (was Language Wars..) Date: 1996/09/25 Message-ID: #1/1 X-Deja-AN: 185316294 distribution: inet sender: news@stortek.com references: <51bv60$8d@pheidippides.axion.bt.co.uk> <32406D89.233E@watson.ibm.com> <3242D1EB.3F54@ford.com> followup-to: comp.lang.ada,comp.lang.apl,comp.lang.basic,comp.lang.c,comp.lang.fortran,comp.lang.perl.misc,comp.lang.pl1,comp.lang.rexx,comp.lang.pascal.misc,comp.lang.smalltalk organization: Storage Technology Corporation newsgroups: comp.lang.ada,comp.lang.apl,comp.lang.basic,comp.lang.c,comp.lang.fortran,comp.lang.perl.misc,comp.lang.pl1,comp.lang.rexx,comp.lang.pascal.misc,comp.lang.smalltalk Date: 1996-09-25T00:00:00+00:00 List-Id: Matthew D. Healy (Matthew.Healy@yale.edu) wrote: : PS: About six months ago when I entered a thread on different dates of : Julian/Gregorian switching in another newsgroup, I got email from an : astronomer somewhere in Europe who told me his country (forget which (quite likely Paul Schlyter :-) : one) did a _really_ strange number on this: instead of stepping in : a single year, they had half a century with no leap years until : they were in sync with the Gregorian calendar! Stick _that_ in cal's : pipe and smoke it! From: Linkname: Calendar FAQ URL: ftp://login.dknet.dk/pub/ct/calendar.faq This document is Copyright (C) 1996 by Claus Tondering. E-mail: ct@login.dknet.dk. Sweden has a curious history. Sweden decided to make a gradual change from the Julian to the Gregorian calendar. By dropping every leap year from 1700 through 1740 the eleven superfluous days would be omitted and from 1 Mar 1740 they would be in sync with the Gregorian calendar. (But in the meantime they would be in sync with nobody!) So 1700 (which should have been a leap year in the Julian calendar) was not a leap year in Sweden. However, by mistake 1704 and 1708 became leap years. This left Sweden out of synchronisation with both the Julian and the Gregorian world, so they decided to go *back* to the Julian calendar. In order to do this, they inserted an extra day in 1712, making that year a double leap year! So in 1712, February had 30 days in Sweden. Later, in 1753 Sweden changed to the Gregorian calendar by dropping 11 days like everyone else. --gil