core + attic (Attic Area): these terms have been either deprecated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

publication

Canonical URL: http://schema.org/publication

Thing > Property > publication

A publication event associated with the item.

Usage: Between 100 and 1000 domains
Values expected to be one of these types
PublicationEvent
Used on these types
CreativeWork

Schema Version 3.3