This seems to provide a good use case for a couple of RDFa attributes:
<time xmlns:d="http://dbpedia.org/resource/";
datatype="d:Mesoamerican_Long_Count_calendar"
content="12.19.16.2.18"
>13 Etz'nab' 1 Kumk'u</time>
Adopting RDFa in HTML5 not only gives us a technique for embedding
RDF triples in HTML, but also gives us an attribute pair (datatype,
content) which can be used for general purpose embedding of machine-
readable equivalents to human-readable information.
The only precaution is that for any element which uses one or both of
these attributes, if the element also contains a property attribute,
then the content and datatype attributes must be used in an RDFa-
compatible manner.
--
Toby A Inkster
<mailto:[email protected]>
<http://tobyinkster.co.uk>
