7a30ca15_emaDotOrgProposals____W3C_Wiki__Topic
[Status] Proposal [Summary] The historical-data.org site proposes some extensions to schema.org to address historical and genealogical (family history) scenarios. [Vocab] Adds HistoricalRecord, HistoricalEvent (subclass of Event), overrides attendees, subEvents, superEvent to point to HistoricalEvent. [Comments] There is an associated implementation, github repository, and blog. [Topic] 
Historical Data proposal
Difference between revisions of "WebSchemas/SchemaDotOrgProposals" - W3C Wiki