Re: Historical events

Hi Anthony,

I was thinking that a period is different from event: it is associated with a length of time, but not necessarily a place. In terms of literature and history, for example, the Romantic Era or Romantic period flourished from the end of the 18th century through the first decades of the 19th, but it has no definite place, as Event does (at least, according to the schema description). I recognize that the definition of Event could be changed, but I expect for websites focussing on literature, history, museums, geology, geography, archives, tourism, there would be tremendous value in identifying a period as such. For example, on a museum website one might want to select for all item descriptions by itemprop=“period” (or whatever it might be called).



On Jun 19, 2018, at 12:50 PM, Anthony Moretti <anthony.moretti@gmail.com<mailto:anthony.moretti@gmail.com>> wrote:

Isn't it already modeled by these properties?:

  *   https://webschemas.org/subEvent
  *   https://webschemas.org/superEvent

Events can exist in part-whole hierarchies, aren't named periods just events high in these hierarchies?

Anthony

On Tue, Jun 19, 2018 at 11:43 AM Muri, Allison <allison.muri@usask.ca<mailto:allison.muri@usask.ca>> wrote:
On Jun 19, 2018, at 12:34 PM, Richard Wallis <richard.wallis@dataliberate.com<mailto:richard.wallis@dataliberate.com>> wrote:

In simple terms I think Event could benefit from a property with a name that means ‘when’ - the period in which the even took place.  Unfortunately I believe a property named ‘when’ would be widely misunderstood and misused, so I suggest the fairly uglyperiodEventOccured which could take ether a Text or URL (perhaps of a Wikidata description of the period).  Maybe there is potential also for an Event Subtype of Period that could also be used here, but maybe that is one step too far until we see how things are used in the wild.


Hi Richard,

I was playing around with a property called period https://sdo-historical.appspot.com/period

description: A length of time in history characterized by some prevalent or distinguishing condition, circumstance, phenomenon, influence, etc., or by the rule of a particular government, dynasty, etc.; an age, era.

microdata:

  1.  <!-- Uses both the "Event" and "HistoricalEntity" item types -->
  2.  <p itemscope="" itemtype="http://schema.org/Event">
  3.    <link itemprop="additionalType" href="http://schema.org/HistoricalEntity" />
  4.    The
  5.      <span itemprop="name">demolition of the Berlin Wall</span>
  6.    at the end of <span itemprop="period">the Cold War</span>
  7.      <span itemprop="geo" itemscope itemtype="http://schema.org/GeoCoordinates">
  8.        <meta itemprop="latitude" content="52.5161111" />
  9.        <meta itemprop="longitude" content="13.3769389" />
  10.     </span>
  11.   began the evening of
  12.     <span itemprop="startDate" content="1989-11-09">9 November 1989</span>
  13.     <link itemprop="sameAs" href="https://www.wikidata.org/wiki/Q11910498"/>
  14.   and continued over the following days and weeks, with people nicknamed Mauerspechte (wall woodpeckers) using various tools to chip off souvenirs, demolishing lengthy parts in the process, and creating several unofficial border crossings.
  15. </p>
  16.


....................................................
Allison Muri
Department of English

Arts 418
University of Saskatchewan
Saskatoon, SK, Canada
ph: 306.966.5503


....................................................
Allison Muri
Department of English

Arts 418
University of Saskatchewan
Saskatoon, SK, Canada
ph: 306.966.5503