Re: Historical events

I think we need to be cautious not to stretch semantics too far, especially
based on whether or not certain properties could be used to express an
idea. If time boundaries are all a thing needs to be an Event, then we do
not need schema.org/Person as we can use startDate and endDate for
birthDate and deathDate.

Looking at Wikidata, if you follow the hierarchy, WWII is an occurrence,
which loosely maps to event, but the Bronze Age is a time period, which
seems about right to me.

Getting back to the original question, ISO 8601 can be used to give the
rough boundaries of a time period, but this use case (and probably others)
requires adding properties to the time period and you can't do that with an
ISO 8601 string. It might be nice to create a type to capture those
properties.

- Vicki


On Wed, May 30, 2018 at 3:01 PM Thad Guidry <thadguidry@gmail.com> wrote:

> Vicki,
>
> I'm just saying it is not a real necessity because Event taken as
> something within a time boundary, covers it all.  But if folks want to
> classify sub-Types of Events...sure, why not.
>
> I myself get very far just by using Thing's properties and the Event
> "about" property to classify sub-Types of Events.  Which tells us we are
> doing things right on those levels at least, being able to model long-tail
> domains even with our existing classes and properties...although I
> understand for Roger, Allison, and others, it might be too much work for
> them.
>
> Sure, I'm fine with introducing a new class, where it could have
> correlationEvent as a new property, as in the following resource link.
>
> Just having these basic classes added into a new Schema.org extension
> could go a long way
> http://resource.geosciml.org/ontology/timescale/gts#classes
>
> -Thad
>
> On Wed, May 30, 2018 at 1:20 PM Vicki Tardif <vtardif@google.com> wrote:
>
>> To Roger's point, I think we should distinguish between events and ages
>> or eras. I think it is fine to call WWII an "event", but the Bronze Age or
>> the 1960s are more timeframes when events happened rather than the events
>> themselves.
>>
>> - Vicki
>>
>>