Re: webschema-ISSUE-16 (Add an Uncertain Date/Time mechanism): ISO8601 doesn't support imprecise dates, useful for cultural heritage, historical data, geneaology [Feedback on Schema.org]

Dan,

I think we also should reach out to Microsoft Research, specifically Bob
Walter <http://www.codeplex.com/site/users/view/BobWalter> with ChronoZoom
project. <http://chronozoom.codeplex.com/>  Their ChronoZoom project
is an existing HTML
5 app <http://www.chronozoomproject.org> and documents that they can deal
with approximate dates, uncertain dates, ranges, etc...but currently it is
not exposing some of the metadata at the HTML5 layer, but they have plans
to do so.  They do store dates, times, ranges, unites, etc within the app
and database,

but..

Looks like they are passing back and forth a String...
http://chronozoom.codeplex.com/SourceControl/changeset/view/13516#286123

but then they store some of those strings as a decimel...?
http://chronozoom.codeplex.com/SourceControl/changeset/view/13516#286002

but don't quote me on above.  Reach out to the team.

Personally, I like and have used the Library of Congress spec for quite
some time in a few projects.

-- 
-Thad
http://www.freebase.com/view/en/thad_guidry