Re: Announce: DateTime::Format::Gedcom V 1.00

Hi Ron,

On 15 Sep 2011, at 00:17 BST, you wrote:

> o The GEDCOM standard specifically lists only a few language  
> escapes, on
> p 45: Gregorian, Julian, Hebrew, French, Roman and Unknown. Make of  
> that
> what you will.

These are not languages, they are fundamentally different calendars:

o the Julian calendar (the well-known plan of the days and months  
created by Julius Caesar in 46 B.C., but finally stabilized about 8  
A.D.; the numbering of the years, with 1 A.D. being the year of the  
birth of Jesus Christ, came about centuries later, when it was agreed  
the calendar begins in 4714 B.C.);

o The Gregorian calendar (in use around most of the western and new  
world today, this is a modification of the Julian calendar made in  
October 1582 to correct for the discovery that the Julian calendar  
was out by about 3 days in every 400 years; in some countries it  
replaced the Julian calendar much later, eg in England in 1752, and  
not until 1923 in Greece);

o the Hebrew calendar (the Jewish year 1 is 3761 B.C. by the Julian  
calendar; this calendar has lunar months 29-30 days long, of which  
there are 12 most years, but 13 in its leap years);

o the French Revolutionary calendar (in use from October 1793 ( "year  
1") but abandoned in January 1806 in Gregorian terms; it has 12  
months of 30 days each, plus an extra 5 or 6 days grouped at the end  
of the year)

o the Roman calendar (I assume by this the GEDCOM standard means pre- 
Christian, and maybe pre-Julian);

o GEDCOM makes provision for dates from an unknown calendar.

The GEDCOM standard does not refer at all to oriental calendars,  
about which I know very little.

Of course, the Julian/Gregorian months have different names in many  
languages (including French and Hebrew!), but the calendar is always  
the same.

HTH

/mike
-- 
Mike Elston
Email:	[email protected]