(adj): having once lived or existed or taken place in the real world as distinct from being legendary
(adj): vs. unreal), existent -- (being or occurring in fact or actuality; having verified existence; not illusory
(adj): belonging to the past; of what is important or famous in the past
(adj): vs. present) (vs. future) -- (earlier than the present time; no longer current
(adj): vs. synchronic), historical -- (used of the study of a phenomenon (especially language) as it changes through time