[whatwg] Dates and coordinates in HTML5

[Lachlan Hunt]

[Resending this to the list now that the problem that prevented it from 
accepting any mail has been fixed.]

Andy Mabbett wrote:
>         Use-cases for machine-readable date mark-up are many: as well as
>         the aforesaid calendar interactions, they can be used for
>         sorting; for searching ("find me all the pages about events in
>         1923" — recent developments in Yahoo's YQL searching API
>         (which now supports searching for microformats):
> 
>           <http://developer.yahoo.net/blog/archives/2009/01/yql_with_microformats.html>
> 
>         have opened up a whole new set of possibilities, which is only
>         just beginning to be explored). They can be mapped visually on a
>         "SIMILE"
> 
>           <http://simile.mit.edu/timeline/>
> 
>         or similar time-line.

Neither of those appear to be using BCE dates, non-Gregorian calendars
or imprecise dates.  It's not clear how they are use cases for the
features that you are asking for.

-- 
Lachlan Hunt - Opera Software
http://lachy.id.au/
http://www.opera.com/