Clarify Event's applicability for non-commercial and historical events

[RichardWallis]

As part of an in-depth thread on the schema.org mailing list Historical Events it is clear that, although Event is equally applicable to all types of event current, historical, commercial, etc., its current description does not make this fully clear and gives the impression the that it is mainly focused on commercially oriented use cases.

This impression is reinforced by the spread of examples, only for concerts and an art event at a museum.

I propose that the description of Event is updated to better reflect its broad applicability, thus:

An event happening at a certain time past or future and location physical or virtual, such as a concert, lecture, meeting, festival, or historical event. Repeated events may be structured as separate Event objects. Where applicable ticketing information may be added via the offers property.

In addition a further example should be added demonstrating this capability:

{
  "@context": "http://schema.org",
  "@type": "Event",
  "name": "Signing of the Magna Carta",
  "startDate": "1215-06-15",
  "location": {
    "@type": "Place",
    "name": "Runnymede",
    "sameAs": "https://en.wikipedia.org/wiki/Runnymede"
  },
  "contributor": {
     "@type": "Person",
     "name": "King John of England",
     "sameAs": "http://www.wikidata.org/entity/Q129308"
  },
  "sameAs": "http://www.wikidata.org/entity/Q12519",
}

This proposal does not address potential future proposals for new types and/or properties discussed in the thread, but would be a useful enhancement if those come to fruition or not.

[github-actions]

This issue is being tagged as Stale due to inactivity.