historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
pseudohistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
documentary — Also, documental [dok-yuh-men-tl] /ˌdɒk yəˈmɛn tl/ (Show IPA). pertaining to, consisting of, or derived from documents: a documentary history of France.