歴史

[1] (X)HTML5 Tracking (2009-08-27 07:47:00 +09:00 版) http://html5.org/tools/web-apps-tracker?from=3680&to=3681

[3] >>1 で subject 属性は itemfor 属性に改められました。

[2] IRC logs: freenode / #whatwg / 20091002 (2009-12-04 00:35:25 +09:00 版) http://krijnhoetmer.nl/irc-logs/whatwg/20091002

[4] Web Applications 1.0 r4066 Update microdata based on results of usability study ( (2009-10-03 06:44:00 +09:00 版)) http://html5.org/tools/web-apps-tracker?from=4065&to=4066