Hi All,

I'm opening this issue to discuss expanding the domain of schema:about. Currently, that domain is limited to CreativeWork and CommunicateAction.

I propose that the domain be expanded to include Event and subTypes of Event. Throwing a few quick examples out:

• A ChildrensEvent about Harry Potter: http://leacockmuseum.com/festival/harry-potter-childrens-day/
• A DanceEvent about history: https://govisland.com/blog/a-weekend-of-song-dance-performance-and-history
• An EducationEvent about chemistry, corrosion, rusting...: http://www.rsc.org/eic/2016/03/corrosion-rusting-electrochemistry-demonstration
• A ScreeningEvent about Alfred Hitchcock: http://minneapolis.happeningmag.com/hitchcock-festival/

A full example:
I've experimented with this idea, marking up this BusinessEvent, which covers multiple topics:
http://edw2016.dataversity.net/
The result is visible here: https://search.google.com/structured-data/testing-tool/u/0/?url=http://edw2016.dataversity.net/#url=http%3A%2F%2Fedw2016.dataversity.net%2F

What do folks think of this proposal? I can work up more formal examples if there is agreement it's worth the effort.

Also, are there other types that would benefit from inheriting the about property? I can foresee a desire to describe a schema:Organization in this manner:

The World Food Program is about: https://en.wikipedia.org/wiki/Malnutrition

Cheers,
--Eric