Data Property: P81_ongoing_throughout
comment "Scope note:
This property describes the minimum period of time covered by an E52 Time-Span.
Since Time-Spans may not have precisely known temporal extents, the CRM supports statements about the minimum and maximum temporal extents of Time-Spans. This property allows a Time-Span's minimum temporal extent (i.e. its inner boundary) to be assigned a value.
- the time-span of the development of the CIDOC CRM (E52) ongoing throughout "1996-2002"" (en)