Relation Types

Relation Types groups the closed vocabulary of edges this atlas uses to connect its entities: in-category, in-branch, associated-with, question-of, article-of, developed-by, founded-by and credited-to, minted at the atlas own founding. Belongs here: the eight relation type entities themselves, each defining what one kind of edge means and which entity types it can join. Does not belong here: an individual edge between two entities, which is a relationship rather than an entity of its own, or a relation-type value invented for a single use rather than added here first.