Thoughts on CIDOC-CRM Classes: "Oops, who put all this Time Stuff in my Box of Things!?"

I am using the CIDOC-CRM – the Conceptual Reference Model developed by the International Council of Museums – as the primary domain reference model guiding design and development of the FactMiners social-game platform. In a recent post I looked at the Conceptual Reference Model from a "pure graph" perspective, re-imagining the CRM's Property Declarations as "just another" labeled subset of model elements, that is, as just another important subset of CRM Classes. In this post, I explore the "entity-ness" of the CIDOC-CRM Class Declarations.