Re: Question about caldate_mjd()

Ooops .. let me restate that... Something, 111AD? (1859 years before 
1970 if I calculate right)  My confustion stems from this line:

  d = cd->day - 678882L;


Bart Grantham wrote:

> What date is this calibrated against?  Something, 1859?  I guess I 
> could easily figure out the exact date, but the reason I ask is: what 
> is the significance of that date?  Is that when some major time 
> reference was established?  Leap year rules, perhaps?  Thanks for the 
> help.
>