From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Juanma Barranquero Newsgroups: gmane.emacs.devel Subject: Re: The Emacs Calculator and calendar Date: Sun, 7 Oct 2012 19:57:22 +0200 Message-ID: References: <87y5jk3f7d.fsf@gmail.com> <5070AB89.4090900@cs.ucla.edu> <831uha7pq9.fsf@gnu.org> <50713449.3010306@cs.ucla.edu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1349632692 7792 80.91.229.3 (7 Oct 2012 17:58:12 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 7 Oct 2012 17:58:12 +0000 (UTC) Cc: jay.p.belanger@gmail.com, eliz@gnu.org, Paul Eggert , reingold@iit.edu, emacs-devel@gnu.org To: rms@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Oct 07 19:58:17 2012 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1TKv7J-00046w-HE for ged-emacs-devel@m.gmane.org; Sun, 07 Oct 2012 19:58:17 +0200 Original-Received: from localhost ([::1]:58587 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TKv7D-0000OG-KT for ged-emacs-devel@m.gmane.org; Sun, 07 Oct 2012 13:58:11 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:42586) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TKv7A-0000Nz-Fm for emacs-devel@gnu.org; Sun, 07 Oct 2012 13:58:09 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TKv79-0005uV-IX for emacs-devel@gnu.org; Sun, 07 Oct 2012 13:58:08 -0400 Original-Received: from mail-wi0-f171.google.com ([209.85.212.171]:51031) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TKv76-0005t3-DZ; Sun, 07 Oct 2012 13:58:04 -0400 Original-Received: by mail-wi0-f171.google.com with SMTP id hj13so2445697wib.12 for ; Sun, 07 Oct 2012 10:58:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=bTBSZ4JdOnwzUqIWLtEHwpP3dXValG6nGh248Qh4tgY=; b=Bb68hgDq3wBUEXs3XSGWz0doY4NO5M4+c0MbLYts/SWgr8DiupfMv7xFUcUUwb4HER dfIKV3NaC9oCYHqPlRgd78X0P9W/p8hh7c2MaGwT5wYTtzv2FtHZep+0Gqm92txUVQ39 5AzbtzlTeJYqvgPZ7b5IeNs1d4ULF/2bAjuTWo7URuwfbH/9LCfriQOi2fOcmfL+FlHK ejwBfKCypYr0Gw/VCfem3ekNqQMhS7SEhXIvjEdqNk+7Bw8SG8Hawp3mSyJLm8KJ1z7I ycuAKVtpKsF+5xnHLRnIlbFIM5sRBh3HTq5awyVeWQPA/NU29b+53qVZPK0FjSAcFsBS 0qSA== Original-Received: by 10.216.5.213 with SMTP id 63mr8628584wel.20.1349632682967; Sun, 07 Oct 2012 10:58:02 -0700 (PDT) Original-Received: by 10.223.155.132 with HTTP; Sun, 7 Oct 2012 10:57:22 -0700 (PDT) In-Reply-To: X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 209.85.212.171 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:154198 Archived-At: On Sun, Oct 7, 2012 at 7:30 PM, Richard Stallman wrote: > you're making some distinction that you have not explained. Presumably Paul is distinguishing between the Roman "julian calendar" (introduced in 45 BC, following a really weird 445-days long 46 BC) and posterior fixes and adjustments. For example, it was changed in Augustus' time (a few decades after introduction) because they had added a leap year every three years, not four. There were other changes related to the start of the year, or to align chistian festivities with some fixed point of the solar year. And, in any case, that calendar wasn't as generally used as some people think. In the Iberian Peninsula they used the "Hispanic Era", with its origin at 38 BC, until the 14th century. So anyone using a Julian date as "contemporary" to refer to Spain's history would only be right from 1383 to 1582, approx. Less than two centuries (a bit more in some parts of Spain, with a maximum of four centuries in Catalonia). The crusades, from 3rd to 9th, would have a different date if you asked contemporary catalonian or castilian people. Aren't calendars fun? Juanma