Definitions for "Historic preservation"
Protection and treatment of the nation's significant historic buildings, landmarks, landscapes, battlefields, tribal communities, and archeological sites; prominent federally-owned buildings; and State and privately-owned properties. [National Park Service, Historic Preservation Services
The process of preserving a part of a community, from an individual building or part of a building to a whole neighborhood (including roadways and waterways), because of its historical importance.
The identification, evaluation, establishment, and protection of resources significant in history, architecture, archaeology, engineering or culture.