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* [TUHS] When did "man cal" lose the comment about 1752?
@ 2024-07-11  1:24 Dave Horsfall
  2024-07-11  1:44 ` [TUHS] " Greg 'groggy' Lehey
                   ` (2 more replies)
  0 siblings, 3 replies; 18+ messages in thread
From: Dave Horsfall @ 2024-07-11  1:24 UTC (permalink / raw)
  To: The Eunuchs Hysterical Society

The manpage for "cal" used to have the comment "Try September 1752" (and 
yes, I know why); it's no longer there, so when did it disappear?  The 
SysV fun police?

I remember it in Ed5 and Ed6, but can't remember when I last saw it.

Thanks.

-- Dave

^ permalink raw reply	[flat|nested] 18+ messages in thread

* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-11  1:24 [TUHS] When did "man cal" lose the comment about 1752? Dave Horsfall
@ 2024-07-11  1:44 ` Greg 'groggy' Lehey
  2024-07-11  3:10   ` Dave Horsfall
  2024-07-11 19:31   ` Stuff Received
  2024-07-11  1:53 ` Henry Bent
  2024-07-14 21:15 ` Marc Donner
  2 siblings, 2 replies; 18+ messages in thread
From: Greg 'groggy' Lehey @ 2024-07-11  1:44 UTC (permalink / raw)
  To: Dave Horsfall; +Cc: The Eunuchs Hysterical Society

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On Thursday, 11 July 2024 at 11:24:26 +1000, Dave Horsfall wrote:
> The manpage for "cal" used to have the comment "Try September 1752" (and
> yes, I know why); it's no longer there, so when did it disappear?  The
> SysV fun police?
>
> I remember it in Ed5 and Ed6, but can't remember when I last saw it.

It's still mentioned in the latest version of FreeBSD:

     -s country_code
             Assume the switch from Julian to Gregorian Calendar at the date
             associated with the country_code.  If not specified, ncal tries
             to guess the switch date from the local environment or falls back
             to September 2, 1752.  This was when Great Britain and her
             colonies switched to the Gregorian Calendar.

It sounds like that's not the quote you're thinking of, though.  I've
checked back as far as FreeBSD 1.0, which had a much simpler version
of cal.  The man page states

       The  Gregorian  Reformation  is assumed to have occurred in 1752 on the
       3rd of September.  By this time, most countries had recognized the ref-
       ormation (although a few did not recognize it until the early  1900's.)
       Ten days following that date were eliminated by the reformation, so the
       calendar for that month is a bit unusual.

Maybe you can find something more interesting in the TUHS archives.

Greg
--
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* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-11  1:24 [TUHS] When did "man cal" lose the comment about 1752? Dave Horsfall
  2024-07-11  1:44 ` [TUHS] " Greg 'groggy' Lehey
@ 2024-07-11  1:53 ` Henry Bent
  2024-07-11  3:29   ` Dave Horsfall
  2024-07-14 19:04   ` Greg A. Woods
  2024-07-14 21:15 ` Marc Donner
  2 siblings, 2 replies; 18+ messages in thread
From: Henry Bent @ 2024-07-11  1:53 UTC (permalink / raw)
  To: Dave Horsfall; +Cc: The Eunuchs Hysterical Society

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On Wed, 10 Jul 2024 at 21:24, Dave Horsfall <dave@horsfall.org> wrote:

> The manpage for "cal" used to have the comment "Try September 1752" (and
> yes, I know why); it's no longer there, so when did it disappear?  The
> SysV fun police?
>
> I remember it in Ed5 and Ed6, but can't remember when I last saw it.
>
> Thanks.
>
> -- Dave
>

Looks like on the BSD side it disappeared between 4.3 Tahoe and Reno.  It's
in research through v10.  It's in SVR2; SVR4 modifies it to say "An unusual
calendar is printed for September 1752."  I don't seem to have manpages
with either of the SVR3 source distributions that I have handy.  So to
answer your basic question, it stayed around for quite a while.

-Henry

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* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-11  1:44 ` [TUHS] " Greg 'groggy' Lehey
@ 2024-07-11  3:10   ` Dave Horsfall
  2024-07-11 19:31   ` Stuff Received
  1 sibling, 0 replies; 18+ messages in thread
From: Dave Horsfall @ 2024-07-11  3:10 UTC (permalink / raw)
  To: The Eunuchs Hysterical Society

On Thu, 11 Jul 2024, Greg 'groggy' Lehey wrote:

[...]

> Maybe you can find something more interesting in the TUHS archives.

I see someone has already answered it; thanks anyway.

-- Dave

^ permalink raw reply	[flat|nested] 18+ messages in thread

* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-11  1:53 ` Henry Bent
@ 2024-07-11  3:29   ` Dave Horsfall
  2024-07-14 19:04   ` Greg A. Woods
  1 sibling, 0 replies; 18+ messages in thread
From: Dave Horsfall @ 2024-07-11  3:29 UTC (permalink / raw)
  To: The Eunuchs Hysterical Society

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On Wed, 10 Jul 2024, Henry Bent wrote:

> Looks like on the BSD side it disappeared between 4.3 Tahoe and Reno.  
> It's in research through v10.  It's in SVR2; SVR4 modifies it to say "An 
> unusual calendar is printed for September 1752."  I don't seem to have 
> manpages with either of the SVR3 source distributions that I have 
> handy.  So to answer your basic question, it stayed around for quite a 
> while.

Just what I wanted; many thanks.  And I couldn't remember what SysV said, 
but I did know that they changed it.

-- Dave

^ permalink raw reply	[flat|nested] 18+ messages in thread

* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-11  1:44 ` [TUHS] " Greg 'groggy' Lehey
  2024-07-11  3:10   ` Dave Horsfall
@ 2024-07-11 19:31   ` Stuff Received
  1 sibling, 0 replies; 18+ messages in thread
From: Stuff Received @ 2024-07-11 19:31 UTC (permalink / raw)
  To: tuhs

On 2024-07-10 21:44, Greg 'groggy' Lehey wrote (in part):
> On Thursday, 11 July 2024 at 11:24:26 +1000, Dave Horsfall wrote:
>> The manpage for "cal" used to have the comment "Try September 1752" (and
>> yes, I know why); it's no longer there, so when did it disappear?  The
>> SysV fun police?
>>
>> I remember it in Ed5 and Ed6, but can't remember when I last saw it.
> 
[...]
> 
> It sounds like that's not the quote you're thinking of, though.  I've
> checked back as far as FreeBSD 1.0, which had a much simpler version
> of cal.  The man page states
> 
>         The  Gregorian  Reformation  is assumed to have occurred in 1752 on the
>         3rd of September.  By this time, most countries had recognized the ref-
>         ormation (although a few did not recognize it until the early  1900's.)
>         Ten days following that date were eliminated by the reformation, so the
>         calendar for that month is a bit unusual.

Solaris 11 has this version:

NOTES
        An unusual calendar is printed for September 1752. That is the
        month 11 days  were skipped to make up for lack of leap year
        adjustments. To see this calendar, type:

          cal 9 1752

S.

^ permalink raw reply	[flat|nested] 18+ messages in thread

* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-11  1:53 ` Henry Bent
  2024-07-11  3:29   ` Dave Horsfall
@ 2024-07-14 19:04   ` Greg A. Woods
  1 sibling, 0 replies; 18+ messages in thread
From: Greg A. Woods @ 2024-07-14 19:04 UTC (permalink / raw)
  To: The Unix Heritage Society mailing list

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At Wed, 10 Jul 2024 21:53:54 -0400, Henry Bent <henry.r.bent@gmail.com> wrote:
Subject: [TUHS] Re: When did "man cal" lose the comment about 1752?
>
> Looks like on the BSD side it disappeared between 4.3 Tahoe and Reno.  It's
> in research through v10.  It's in SVR2; SVR4 modifies it to say "An unusual
> calendar is printed for September 1752."  I don't seem to have manpages
> with either of the SVR3 source distributions that I have handy.  So to
> answer your basic question, it stayed around for quite a while.

System V Release 3.2 MRD says the same thing as SVR4:

            An unusual calendar is printed for September 1752.  That is
            the month 11 days were skipped to make up for lack of leap
            year adjustments.  To see this calendar, type: "cal 9 1752"

The "BUGS" section remains the same as it was in 7th Edition.

In the CSRG SCCS files cal(1) was "updated" after the 4.3BSD release
with this comment:

src/usr.bin/cal/SCCS/s.cal.1
	D 6.3 89/09/28 14:20:22 bostic 5 4      00042/00023/00009
	MRs:
	COMMENTS:
	new version from Kim Letkeman (mitel!spock!kim@uunet.UU.NET)

The code was also updated at the same time:

src/usr.bin/cal/SCCS/s.cal.c
	D 4.5 89/09/28 14:20:24 bostic 5 4      00222/00159/00043
	MRs:
	COMMENTS:
	new version from Kim Letkeman (mitel!spock!kim@uunet.UU.NET)

This is of course a complete rewrite to give UCB the copyright.

--
					Greg A. Woods <gwoods@acm.org>

Kelowna, BC     +1 250 762-7675           RoboHack <woods@robohack.ca>
Planix, Inc. <woods@planix.com>     Avoncote Farms <woods@avoncote.ca>

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* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-11  1:24 [TUHS] When did "man cal" lose the comment about 1752? Dave Horsfall
  2024-07-11  1:44 ` [TUHS] " Greg 'groggy' Lehey
  2024-07-11  1:53 ` Henry Bent
@ 2024-07-14 21:15 ` Marc Donner
  2024-07-15 14:00   ` Paul Winalski
  2024-07-15 17:44   ` Greg A. Woods
  2 siblings, 2 replies; 18+ messages in thread
From: Marc Donner @ 2024-07-14 21:15 UTC (permalink / raw)
  To: Dave Horsfall; +Cc: The Eunuchs Hysterical Society

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My instance of cal (MacOS 14.5) has this in the man page:

     -s country_code

             Assume the switch from Julian to Gregorian Calendar at the date

             associated with the country_code.  If not specified, ncal tries

             to guess the switch date from the local environment or falls
back

             to September 2, 1752.  This was when Great Britain and her

             colonies switched to the Gregorian Calendar.

Note that the switch to the Gregorian calendar happened at different times
in different countries.  In Catholic-dominated countries it happened in
October of 1582.  The English-speaking world, being Protestant-dominated,
waited until September of 1752 to adopt it.
=====
nygeek.net
mindthegapdialogs.com/home <https://www.mindthegapdialogs.com/home>


On Wed, Jul 10, 2024 at 9:25 PM Dave Horsfall <dave@horsfall.org> wrote:

> The manpage for "cal" used to have the comment "Try September 1752" (and
> yes, I know why); it's no longer there, so when did it disappear?  The
> SysV fun police?
>
> I remember it in Ed5 and Ed6, but can't remember when I last saw it.
>
> Thanks.
>
> -- Dave
>

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* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-14 21:15 ` Marc Donner
@ 2024-07-15 14:00   ` Paul Winalski
  2024-07-15 18:21     ` Marc Donner
  2024-07-15 17:44   ` Greg A. Woods
  1 sibling, 1 reply; 18+ messages in thread
From: Paul Winalski @ 2024-07-15 14:00 UTC (permalink / raw)
  To: Marc Donner; +Cc: The Eunuchs Hysterical Society

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On Sun, Jul 14, 2024 at 5:25 PM Marc Donner <marc.donner@gmail.com> wrote:

> Note that the switch to the Gregorian calendar happened at different times
> in different countries.  In Catholic-dominated countries it happened in
> October of 1582.  The English-speaking world, being Protestant-dominated,
> waited until September of 1752 to adopt it.
>
> And Russia didn't adopt the Gregorian calendar until 1918.  IIRC the
Eastern Orthodox churches still use the Julian calendar for scheduling
ecclesiastical events such as the date of Easter.

-Paul W.

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* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-14 21:15 ` Marc Donner
  2024-07-15 14:00   ` Paul Winalski
@ 2024-07-15 17:44   ` Greg A. Woods
  2024-07-15 19:03     ` Ken Thompson
  1 sibling, 1 reply; 18+ messages in thread
From: Greg A. Woods @ 2024-07-15 17:44 UTC (permalink / raw)
  To: The Unix Heritage Society mailing list

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At Sun, 14 Jul 2024 17:15:53 -0400, Marc Donner <marc.donner@gmail.com> wrote:
Subject: [TUHS] Re: When did "man cal" lose the comment about 1752?
>
> My instance of cal (MacOS 14.5) has this in the man page:
>
>      -s country_code
>
>              Assume the switch from Julian to Gregorian Calendar at the date
>              associated with the country_code.  If not specified, ncal tries
>              to guess the switch date from the local environment or falls back
>              to September 2, 1752.  This was when Great Britain and her
>              colonies switched to the Gregorian Calendar.

That's 'ncal' from FreeBSD, which is an entirely "new" implementation
written by Wolfgang Helbig:

	commit 0cb2e609d9c2f0ceaf730a57ac5c11580058e7f4
	Author: Wolfgang Helbig <helbig@FreeBSD.org>
	Date:   Mon Dec 15 20:35:22 1997 +0000

	    Add new command ncal.

> Note that the switch to the Gregorian calendar happened at different times
> in different countries.  In Catholic-dominated countries it happened in
> October of 1582.  The English-speaking world, being Protestant-dominated,
> waited until September of 1752 to adopt it.

Indeed!

--
					Greg A. Woods <gwoods@acm.org>

Kelowna, BC     +1 250 762-7675           RoboHack <woods@robohack.ca>
Planix, Inc. <woods@planix.com>     Avoncote Farms <woods@avoncote.ca>

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* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-15 14:00   ` Paul Winalski
@ 2024-07-15 18:21     ` Marc Donner
  2024-07-15 18:41       ` Phil Budne
  0 siblings, 1 reply; 18+ messages in thread
From: Marc Donner @ 2024-07-15 18:21 UTC (permalink / raw)
  To: Paul Winalski; +Cc: The Eunuchs Hysterical Society

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To be turbo pedantic, Russia adopted a different calendar in 1918.
Gregorian and Russian calendars will diverge in 4000 CE.
=====
nygeek.net
mindthegapdialogs.com/home <https://www.mindthegapdialogs.com/home>


On Mon, Jul 15, 2024 at 10:00 AM Paul Winalski <paul.winalski@gmail.com>
wrote:

> On Sun, Jul 14, 2024 at 5:25 PM Marc Donner <marc.donner@gmail.com>
> wrote:
>
>> Note that the switch to the Gregorian calendar happened at different
>> times in different countries.  In Catholic-dominated countries it happened
>> in October of 1582.  The English-speaking world, being
>> Protestant-dominated, waited until September of 1752 to adopt it.
>>
>> And Russia didn't adopt the Gregorian calendar until 1918.  IIRC the
> Eastern Orthodox churches still use the Julian calendar for scheduling
> ecclesiastical events such as the date of Easter.
>
> -Paul W.
>

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^ permalink raw reply	[flat|nested] 18+ messages in thread

* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-15 18:21     ` Marc Donner
@ 2024-07-15 18:41       ` Phil Budne
  0 siblings, 0 replies; 18+ messages in thread
From: Phil Budne @ 2024-07-15 18:41 UTC (permalink / raw)
  To: paul.winalski, marc.donner; +Cc: tuhs

Rats!  There doesn't seem to be a file in the TZ Database for me to
set display to "Orthodox/Eastern"!  Hard to believe Olson didn't
consider it!


^ permalink raw reply	[flat|nested] 18+ messages in thread

* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-15 17:44   ` Greg A. Woods
@ 2024-07-15 19:03     ` Ken Thompson
  2024-07-15 19:04       ` Ken Thompson
  2024-07-15 19:33       ` Marc Donner
  0 siblings, 2 replies; 18+ messages in thread
From: Ken Thompson @ 2024-07-15 19:03 UTC (permalink / raw)
  To: The Unix Heritage Society mailing list

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it is worse than "per country",
alaska changed when the u.s.
bought it from russia.


On Mon, Jul 15, 2024 at 10:45 AM Greg A. Woods <woods@robohack.ca> wrote:

> At Sun, 14 Jul 2024 17:15:53 -0400, Marc Donner <marc.donner@gmail.com>
> wrote:
> Subject: [TUHS] Re: When did "man cal" lose the comment about 1752?
> >
> > My instance of cal (MacOS 14.5) has this in the man page:
> >
> >      -s country_code
> >
> >              Assume the switch from Julian to Gregorian Calendar at the
> date
> >              associated with the country_code.  If not specified, ncal
> tries
> >              to guess the switch date from the local environment or
> falls back
> >              to September 2, 1752.  This was when Great Britain and her
> >              colonies switched to the Gregorian Calendar.
>
> That's 'ncal' from FreeBSD, which is an entirely "new" implementation
> written by Wolfgang Helbig:
>
>         commit 0cb2e609d9c2f0ceaf730a57ac5c11580058e7f4
>         Author: Wolfgang Helbig <helbig@FreeBSD.org>
>         Date:   Mon Dec 15 20:35:22 1997 +0000
>
>             Add new command ncal.
>
> > Note that the switch to the Gregorian calendar happened at different
> times
> > in different countries.  In Catholic-dominated countries it happened in
> > October of 1582.  The English-speaking world, being Protestant-dominated,
> > waited until September of 1752 to adopt it.
>
> Indeed!
>
> --
>                                         Greg A. Woods <gwoods@acm.org>
>
> Kelowna, BC     +1 250 762-7675           RoboHack <woods@robohack.ca>
> Planix, Inc. <woods@planix.com>     Avoncote Farms <woods@avoncote.ca>
>

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* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-15 19:03     ` Ken Thompson
@ 2024-07-15 19:04       ` Ken Thompson
  2024-07-15 20:02         ` Jaap Akkerhuis via TUHS
  2024-07-15 19:33       ` Marc Donner
  1 sibling, 1 reply; 18+ messages in thread
From: Ken Thompson @ 2024-07-15 19:04 UTC (permalink / raw)
  To: The Unix Heritage Society mailing list

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it is worse than "per country",
alaska changed when the u.s.
bought it from russia.

On Mon, Jul 15, 2024 at 12:03 PM Ken Thompson <kenbob@gmail.com> wrote:

> it is worse than "per country",
> alaska changed when the u.s.
> bought it from russia.
>
>
> On Mon, Jul 15, 2024 at 10:45 AM Greg A. Woods <woods@robohack.ca> wrote:
>
>> At Sun, 14 Jul 2024 17:15:53 -0400, Marc Donner <marc.donner@gmail.com>
>> wrote:
>> Subject: [TUHS] Re: When did "man cal" lose the comment about 1752?
>> >
>> > My instance of cal (MacOS 14.5) has this in the man page:
>> >
>> >      -s country_code
>> >
>> >              Assume the switch from Julian to Gregorian Calendar at the
>> date
>> >              associated with the country_code.  If not specified, ncal
>> tries
>> >              to guess the switch date from the local environment or
>> falls back
>> >              to September 2, 1752.  This was when Great Britain and her
>> >              colonies switched to the Gregorian Calendar.
>>
>> That's 'ncal' from FreeBSD, which is an entirely "new" implementation
>> written by Wolfgang Helbig:
>>
>>         commit 0cb2e609d9c2f0ceaf730a57ac5c11580058e7f4
>>         Author: Wolfgang Helbig <helbig@FreeBSD.org>
>>         Date:   Mon Dec 15 20:35:22 1997 +0000
>>
>>             Add new command ncal.
>>
>> > Note that the switch to the Gregorian calendar happened at different
>> times
>> > in different countries.  In Catholic-dominated countries it happened in
>> > October of 1582.  The English-speaking world, being
>> Protestant-dominated,
>> > waited until September of 1752 to adopt it.
>>
>> Indeed!
>>
>> --
>>                                         Greg A. Woods <gwoods@acm.org>
>>
>> Kelowna, BC     +1 250 762-7675           RoboHack <woods@robohack.ca>
>> Planix, Inc. <woods@planix.com>     Avoncote Farms <woods@avoncote.ca>
>>
>

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* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-15 19:03     ` Ken Thompson
  2024-07-15 19:04       ` Ken Thompson
@ 2024-07-15 19:33       ` Marc Donner
  2024-07-16 15:54         ` Paul Winalski
  1 sibling, 1 reply; 18+ messages in thread
From: Marc Donner @ 2024-07-15 19:33 UTC (permalink / raw)
  To: Ken Thompson, The Eunuchs Hysterical Society

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Yeah, but if you do that you have to treat the places acquired in the
Louisiana Purchase differently because they switched in 1582.  And Puerto
Rico.  Bleh.
=====
nygeek.net
mindthegapdialogs.com/home <https://www.mindthegapdialogs.com/home>


On Mon, Jul 15, 2024 at 3:04 PM Ken Thompson <kenbob@gmail.com> wrote:

> it is worse than "per country",
> alaska changed when the u.s.
> bought it from russia.
>
>
> On Mon, Jul 15, 2024 at 10:45 AM Greg A. Woods <woods@robohack.ca> wrote:
>
>> At Sun, 14 Jul 2024 17:15:53 -0400, Marc Donner <marc.donner@gmail.com>
>> wrote:
>> Subject: [TUHS] Re: When did "man cal" lose the comment about 1752?
>> >
>> > My instance of cal (MacOS 14.5) has this in the man page:
>> >
>> >      -s country_code
>> >
>> >              Assume the switch from Julian to Gregorian Calendar at the
>> date
>> >              associated with the country_code.  If not specified, ncal
>> tries
>> >              to guess the switch date from the local environment or
>> falls back
>> >              to September 2, 1752.  This was when Great Britain and her
>> >              colonies switched to the Gregorian Calendar.
>>
>> That's 'ncal' from FreeBSD, which is an entirely "new" implementation
>> written by Wolfgang Helbig:
>>
>>         commit 0cb2e609d9c2f0ceaf730a57ac5c11580058e7f4
>>         Author: Wolfgang Helbig <helbig@FreeBSD.org>
>>         Date:   Mon Dec 15 20:35:22 1997 +0000
>>
>>             Add new command ncal.
>>
>> > Note that the switch to the Gregorian calendar happened at different
>> times
>> > in different countries.  In Catholic-dominated countries it happened in
>> > October of 1582.  The English-speaking world, being
>> Protestant-dominated,
>> > waited until September of 1752 to adopt it.
>>
>> Indeed!
>>
>> --
>>                                         Greg A. Woods <gwoods@acm.org>
>>
>> Kelowna, BC     +1 250 762-7675           RoboHack <woods@robohack.ca>
>> Planix, Inc. <woods@planix.com>     Avoncote Farms <woods@avoncote.ca>
>>
>

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^ permalink raw reply	[flat|nested] 18+ messages in thread

* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-15 19:04       ` Ken Thompson
@ 2024-07-15 20:02         ` Jaap Akkerhuis via TUHS
  0 siblings, 0 replies; 18+ messages in thread
From: Jaap Akkerhuis via TUHS @ 2024-07-15 20:02 UTC (permalink / raw)
  To: The Unix Heritage Society mailing list



> On 15 Jul 2024, at 21:04, Ken Thompson <kenbob@gmail.com> wrote:
> 
> it is worse than "per country",
> alaska changed when the u.s.
> bought it from russia.

Also note that the ISO country codes standard is from 1974.  I guess
that is why the FreeBSD ncal states that

	"The assignment of Julian–Gregorian switching dates to
	country codes is historically naive for many countries."

What we call countries nowadays has changed over the years (and
centuries).

	jaap


^ permalink raw reply	[flat|nested] 18+ messages in thread

* [TUHS] Re: When did "man cal" lose the comment about 1752?
  2024-07-15 19:33       ` Marc Donner
@ 2024-07-16 15:54         ` Paul Winalski
  0 siblings, 0 replies; 18+ messages in thread
From: Paul Winalski @ 2024-07-16 15:54 UTC (permalink / raw)
  To: The Eunuchs Hysterical Society

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The whole Julian -> Gregorian calendar conversion thing must be a real mess
for historians using contemporary date references.

-Paul W.

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^ permalink raw reply	[flat|nested] 18+ messages in thread

* [TUHS] When did "man cal" lose the comment about 1752?
@ 2024-07-15 19:52 Douglas McIlroy
  0 siblings, 0 replies; 18+ messages in thread
From: Douglas McIlroy @ 2024-07-15 19:52 UTC (permalink / raw)
  To: TUHS main list

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> Yeah, but if you do that you have to treat the places
> acquired in the Louisiana Purchase differently because
> they switched in 1582.  And Puerto Rico.  Bleh.

Then there are all the German city states. And the
shifting borders of Poland. (cal -s country) is a mighty
low-res "solution" to the Julian/Gregorian problem.

Doug

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^ permalink raw reply	[flat|nested] 18+ messages in thread

end of thread, other threads:[~2024-07-16 15:55 UTC | newest]

Thread overview: 18+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2024-07-11  1:24 [TUHS] When did "man cal" lose the comment about 1752? Dave Horsfall
2024-07-11  1:44 ` [TUHS] " Greg 'groggy' Lehey
2024-07-11  3:10   ` Dave Horsfall
2024-07-11 19:31   ` Stuff Received
2024-07-11  1:53 ` Henry Bent
2024-07-11  3:29   ` Dave Horsfall
2024-07-14 19:04   ` Greg A. Woods
2024-07-14 21:15 ` Marc Donner
2024-07-15 14:00   ` Paul Winalski
2024-07-15 18:21     ` Marc Donner
2024-07-15 18:41       ` Phil Budne
2024-07-15 17:44   ` Greg A. Woods
2024-07-15 19:03     ` Ken Thompson
2024-07-15 19:04       ` Ken Thompson
2024-07-15 20:02         ` Jaap Akkerhuis via TUHS
2024-07-15 19:33       ` Marc Donner
2024-07-16 15:54         ` Paul Winalski
2024-07-15 19:52 [TUHS] " Douglas McIlroy

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