E93 Spacetime Snapshot in Version 5.1.2

Subclass of :
E92 Spacetime Volume
Superclass of: No superclasses found
Scope Note:
This class comprises instances of E92 Spacetime Volume that result from intersections of instances of E92 Spacetime Volume, E53 Place or E52 Time-Span.  The identity of an instance of this class is determined by the identities of its constituting items. Those are one or more of the following:
1) two or more instances of E92 Spacetime Volume
2) one or more instances of E92 Spacetime Volume AND one or more instances of E53 Place.
3) one or more instances of E92 Spacetime Volume AND one or more instances of E52 Time-Span
4) one or more instances of E53 Place AND one or more instances of E52 Time-Span
 
This class can be used to define temporal snapshots at a particular time-span, such as the extent of the Roman Empire at 33 B.C., or the extent occupied by a museum object at rest in an exhibit. It can also be used to define a spatial snapshot, such as cutting the E92 Spacetime Volume occupied by the Iron Age by the current spatial extent of Austria. It can also be used to define intersections of two or more real spatiotemporal components, such as the E92 Spacetime Volume occupied by the E4 Period of Impressionism with the E92 Spacetime Volume occupied by the life of Van Gogh, or the E92 Spacetime Volume occupied by Imperial China with that claimed by Imperial Vietnam. 
In particular, it can be used to define partial spatial or temporal projections of spacetime volumes, such as the time-spans of foreign occupation of a country, or the spatial extent of a flood at some particular hour.
 
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