At 17:12  +0100 30/07/09, Sam Kuper wrote:
2009/7/30 Tab Atkins Jr. <<mailto:jackalm...@gmail.com>jackalm...@gmail.com>

On Thu, Jul 30, 2009 at 10:34 AM, Sam Kuper<<mailto:sam.ku...@uclmail.net>sam.ku...@uclmail.net> wrote:

 > Not for BCE; I'm not working on that period at the moment, but excepting
 that, here are a couple of good examples with ranges:

<http://www.darwinproject.ac.uk/darwinletters/calendar/entry-10762.html>http://www.darwinproject.ac.uk/darwinletters/calendar/entry-10762.html

<http://www.darwinproject.ac.uk/darwinletters/calendar/entry-295.html>http://www.darwinproject.ac.uk/darwinletters/calendar/entry-295.html

<http://www.darwinproject.ac.uk/darwinletters/calendar/entry-6611f.html>http://www.darwinproject.ac.uk/darwinletters/calendar/entry-6611f.html
 Now, either there should be markup available for ranges, or it should at
 least be possible to specify components of a date independently of each
 other, and to imply (at least for humans) a "range" spanning these different
 date elements as appropriate.

Now, here's the million-dollar question: Why do you need <time> or
something like it for these dates?  You seem to have them marked up
quite fine as it is.


1) Machine readability.
2) Consistency across websites that mark up dates.

Quite. We've had this debate before and Ian decided that it might be confusing to apply a dating system to days when that dating system was not in effect on those days, I think. Against that, one has to realize that "the label of the day before X" is well-defined for the day before the introduction of the Gregorian calendar, and iteratively going back to year 1, year 0, year -1, and so on. And it would be nice to have a standard way of labelling dates in historical documents so that they are comparable; I am reminded of Kilngaman's book in which he has parallel chapters for China and Rome in the first century CE <http://www.amazon.com/First-Century-Emporers-Gods-Everyman/dp/0785822569/ref=sr_1_1?ie=UTF8&s=books&qid=1248970679&sr=8-1>. It would be nice if one could determine that two events in separate documents were essentially contemporary, despite being labeled in the original text in different ways.

However, whether the spec. formally blesses using <time> like this may not be very relevant, as it can be done textually with or without the blessing.
--
David Singer
Multimedia Standards, Apple Inc.

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