Thnak Martin and others for the update on the CRM project. This is very
timely (no pun intended) as we are putting together a meeting to take this
forward, as Phil Carlisle hinted in an earlier posting.
Further details will be posted to this list in the next week.
Best wishes
Edmund Lee
English Heritage
> -----Original Message-----
> From: martin [mailto:[log in to unmask]]
> Sent: Thursday, April 18, 2002 6:58 AM
> To: [log in to unmask]
> Subject: Re: [FISH] Period classifications
>
>
> Hi everyone,
>
> From a CIDOC CRM perspective, periods are always
> spatiotemporal. This includes things like the American
> Civil War (restricted to USA), WWI, WWII (restricted to
> earth). It means however, that all periods spread
> out spatially over time. So, WWII has different dates for
> Japan, USA and Germany. In the CIDOC group, we could
> not identify any other culturally relevant definition for
> periods. E.g. 12th century has no common meaning for
> the Americas and Europe. In the CIDOC CRM, we regard terms
> like 18th century as time-spans, distinct from periods.
> There is really no need to fill a thesaurus with time-spans.
> They can be created automatically, there are several
> implementations around doing things like "begin of 18th
> century". Even though widely used, one can ask if there is
> any cultural change implied by the begin or end of a
> Christian century.
>
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