Re: [LEAPSECS] building consensus

From: M. Warner Losh <imp_at_BSDIMP.COM>
Date: Tue, 06 Jun 2006 23:13:26 -0600 (MDT)

In message: <777E5C5F-8B7F-45D2-BE7A-8C773D1D751A_at_noao.edu>
            Rob Seaman <seaman_at_noao.edu> writes:
: This does not express a complete algorithm, of course, since it is
: not tied to the days of the week. One presume the zero point of 1875
: was selected as a practical compromise with historical realities.
: One questions whether the Gregorian calendar can be used to express
: dates before 1582-10-15, and it is ambiguous for large parts of the
: world until the mid-eighteenth century. Still in 1875, it had not
: reached all locales. Etc.

This was answered earlier in the thread. One can project the
Gregorian calendar back in time from the above date and use that for
dating (there's a special name for when you do this that can be found
in the archives). However, most historians use Julian dates back from
there (with the same backward projected dates when time is before the
Julian calendar was established).

Warner
Received on Tue Jun 06 2006 - 22:14:18 PDT