12 Jul
2024
12 Jul
'24
1:31 a.m.
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.