This property associates an instance of E93 Presence with the instance of E92 Spacetime Volume of which it represents a temporal restriction (i.e.: a time-slice). Instantiating this property constitutes a necessary part of the identity of the respective instance of E93 Presence.
The Roman Empire on 19 August AD 14 (E93) was a presence of The Roman Empire (E4). (Clare and Edwards, 1992)