From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.2 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, RCVD_IN_ZEN_BLOCKED_OPENDNS,URIBL_ZEN_BLOCKED_OPENDNS autolearn=ham autolearn_force=no version=3.4.4 Received: from minnie.tuhs.org (minnie.tuhs.org [50.116.15.146]) by inbox.vuxu.org (Postfix) with ESMTP id A2E06211C8 for ; Tue, 23 Sep 2025 03:05:47 +0200 (CEST) Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 2E057444F6; Tue, 23 Sep 2025 11:05:43 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuhs.org; s=dkim; t=1758589543; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:in-reply-to:in-reply-to: references:references:list-id:list-help:list-owner:list-unsubscribe: list-subscribe:list-post:openpgp:openpgp; bh=5wspUeErQhed/GWoFvqpo3tNoZeud/Sj4HwFztnRKfE=; b=zQkM0sxjLnAI0WXhj6CqfYYvmys0XTumhcEY0JD/5wfjZEWIKHByi4zM6PgfMc5dpE7YmM d/FL5PMjh2bQb4BRqiI9ZTyZxXTAZzfEfDA0BubMZRq0+zsMHrijg7ClUMxU4nFlmnkMFe Z9VKl/s7KFWnDvcmvQcwmBeRXH0uN+0= Received: from sdaoden.eu (sdaoden.eu [217.144.132.164]) by minnie.tuhs.org (Postfix) with ESMTPS id D7C3D4438B for ; Tue, 23 Sep 2025 11:05:37 +1000 (AEST) Date: Tue, 23 Sep 2025 03:05:34 +0200 Author: Steffen Nurpmeso To: John Levine via TUHS Message-ID: <20250923010534.2L17rbeZ@steffen%sdaoden.eu> In-Reply-To: <20250923003454.03671DD56E9A@ary.qy> References: <20250923003454.03671DD56E9A@ary.qy> Mail-Followup-To: John Levine via TUHS , douglas.mcilroy@dartmouth.edu User-Agent: s-nail v14.9.25-712-gc20034e134-dirty OpenPGP: id=EE19E1C1F2F7054F8D3954D8308964B51883A0DD; url=https://ftp.sdaoden.eu/steffen.asc; preference=signencrypt BlahBlahBlah: Any stupid boy can crush a beetle. But all the professors in the world can make no bugs. Message-ID-Hash: K2CJVSWQWOTV5VD54CSYEJA3OBCOCLU4 X-Message-ID-Hash: K2CJVSWQWOTV5VD54CSYEJA3OBCOCLU4 X-MailFrom: steffen@sdaoden.eu X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tuhs.tuhs.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: douglas.mcilroy@dartmouth.edu X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: History of cal(1)? List-Id: The Unix Heritage Society mailing list Archived-At: <> List-Archive: <> List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: Steffen Nurpmeso via TUHS Reply-To: Steffen Nurpmeso John Levine via TUHS wrote in <20250923003454.03671DD56E9A@ary.qy>: |It appears that Douglas McIlroy via TUHS \ |said: |>> [cal(1)] has all the logic to adjust for 16th century |>> calendar changes ... (Try "cal 9 1752") |>> My impression is that [it is] overimplemented. |> |>The fact that a 16th century change is illustrated by an 18th century |>example suggests that not quite "all the logic" is there. It's good |>for Great Britain and its colonies, but not elsewhere. So I'd say it's |>underimplemented :) | |You'll be relieved to know that ncal has addressed that omission: | |$ ncal -p | AL Albania 1912-11-30 IS Iceland 1700-11-16 | AT Austria 1583-10-05 IT Italy 1582-10-04 | AU Australia 1752-09-02 JP Japan 1918-12-18 | BE Belgium 1582-12-14 LT Lithuania 1918-02-01 | BG Bulgaria 1916-03-31 LU Luxembourg 1582-12-14 | CA Canada 1752-09-02 LV Latvia 1918-02-01 | CH Switzerland 1655-02-28 NL Netherlands 1582-12-14 | CN China 1911-12-18 NO Norway 1700-02-18 | CZ Czech Republic 1584-01-06 PL Poland 1582-10-04 | DE Germany 1700-02-18 PT Portugal 1582-10-04 (In an earlier thread on this topic Mr. McIlroy threw into the discussion that for example Germany was very much more complicated than that. And i said iirc something like "we tried to keep it local by then" [actually notoriously so], and unfortunately talked about Mors Teutonicus even, as "we more usually than not reached the Holy Land" before reaching the holy land, which *possibly* is the only one and true way to reach the holy land .. if you can. (Pffffhh, what a talk.)) | DK Denmark 1700-02-18 RO Romania 1919-03-31 | ES Spain 1582-10-04 RU Russia 1918-01-31 | FI Finland 1753-02-17 SI Slovenia 1919-03-04 | FR France 1582-12-09 SE Sweden 1753-02-17 | GB United Kingdom 1752-09-02 TR Turkey 1926-12-18 | GR Greece 1924-03-09 *US United States 1752-09-02 | HU Hungary 1587-10-21 YU Yugoslavia 1919-03-04 | |R's, |John | |PS: my point was not that it's a lot of code, but that is's a distinctive \ |hack so one might |look at earlier calendar programs to see whether they also did it to \ |try and trace the |chain of influence. --End of <20250923003454.03671DD56E9A@ary.qy> --steffen | |Der Kragenbaer, The moon bear, |der holt sich munter he cheerfully and one by one |einen nach dem anderen runter wa.ks himself off |(By Robert Gernhardt)