owl:sameAs via HTML5 microdata

sameAs-microdata.html

<div class="related" item="item"> 
   <link itemprop="about"
      href="http://socialarchive.iath.virginia.edu/xtf/view?docId=Eisenhower+Dwight+D+Dwight+David+1890-1969-cr.xml#entity"></link> 
   <div class="arcrole">sameAs</div> 
   <a itemprop="http://www.w3.org/2002/07/owl#sameAs"
      title="Virtual International Authority File"
      href="http://viaf.org/viaf/100176316">http://viaf.org/viaf/100176316</a> 
</div> 

sameAs-RDAa.xml

<div class="related" 
   about="http://socialarchive.iath.virginia.edu/xtf/view?docId=Eisenhower+Dwight+D+Dwight+David+1890-1969-cr.xml#entity">
   <div class="arcrole">sameAs</div> 
   <a xmlns:owl="http://www.w3.org/2002/07/owl#"
      rel="owl:sameAs"
      title="Virtual International Authority File"
      href="http://viaf.org/viaf/100176316">http://viaf.org/viaf/100176316</a> 
</div> 

Try this for better results: https://gist.github.com/917944

A good tool for testing RDFa is the w3c RDFa distiller: http://www.w3.org/2007/08/pyRdfa/#distill_by_input

Thanks for your help!; I've updated the example above and tested it with the distiller.

My pleasure!