This property describes the temporal projection of an instance of E92 Spacetime Volume. The property P4 has time-span is the same as P160 has temporal projection if it is used to document an instance of E4 Period or any subclass of it.
The spatio-temporal trajectory of the H.M.S. Temeraire from its building in 1798 to its destruction in 1838 (E92) has temporal projection The Time-Span of the existence of H.M.S. Temeraire (E52) [at some time within (P82) “1798-1838” (E61).] (Willis, 2010)
The Battle of Waterloo 1815 (E7) has temporal projection the time-span of The Battle of Waterloo (E52) [at some time within (P82) “Sunday, 18th June 1815” (E61).] (Black, 2010)