Re: Intent to package: "birthday"

[Javier Fdz-Sanguino Pen~a <jfs@ieeesb.etsit.upm.es>]

	Just a thought....

On Sat, Mar 13, 1999 at 04:04:42PM +0000, Andy Mortimer wrote:
> This is a program I wrote for my own use a while ago, and have been
> upgrading and fixing for a few years, and since everyone who's had a
(...)
> # ...
> St Valentine's Day=14/2 ev
> New Year=1/1 ev
> Christmas=25/12 ev
> The Millenium=1/1/2000 ev w500

	As a matter of fact the beginning of the Millenium is 1/1/2001,
since there was no year 0 in Christian calendar (read
(http://www.21net.com/home/about.htm#When) But this is because the monk that
was pushed
to decide when Jesus was born, Dionisius "el Exiguo" (don't know how
to translate this from Spanish), and change the Roman calendar (based
on Rome's fundation: Ab Urbe Condita) to the christian calendar (based
on Jesus birth: Anno Domini), numbered from -1 A.D (1 b.c), to 1 A.D.

        So, since we use a numbering based on the number 10. The first
century goes from year 1 to year 100. The second century starts the
year 101. For more information, read the Isaac Asimov's book "Origins".

        There are many people in this error, and I get quite frantik
when I hear (or read in a newspaper) such fuzz about the 21st century,
one year before it will happen!

> 
> and gives output something like
> 
> Vicky is 23 years old in 1 week and 4 days' time.
> The Millenium in 9 months, 2 weeks and 5 days' time.

	wrong by a year (12 months :)
> 
> depending what day it is!
(..)

	Regards 

	Javi