“Historic context” means a unit created for planning purposes that groups information about historical resources based on a shared theme, specific time period and geographical area that is used as the basis for judging a resource’s historical significance and its eligibility for listing. (Also see “theme.”) (Also see the City’s HPP Section 1.0, Preface and Acknowledgments – Historic Contexts, and Appendix – National Register Bulletin 15: How to Apply the National Register Criteria for Evaluation, Section V, Understanding Historic Contexts.) (Ord. 3196 § 3, 2011).