{"nrhp_refnum":"74001646","name":"Marietta Historic District","other_names":["See Also:Rufus Putnam House","Ohio Company Land Office","Erwin H"],"category":"district","location":{"address":"Roughly bounded by the Muskingum and Ohio Rivers and Warren, 3rd, 5th, and 6th Sts.","address_restricted":false,"city":"Marietta","county":"Washington County","state":"OH","lat":39.41787788000005,"lon":-81.45520598406753,"geom_source":"nps_gis"},"listed_date":"1974-12-19","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Prehistoric","Community Planning and Development","Landscape Architecture","Commerce","Military","Education","Politics/Government","Architecture","Religion"],"significance_levels":["state"],"summary":{"what_it_is":"A roughly 450-acre historic district covering the center and much of the original settlement of Marietta, Washington County, Ohio, at the confluence of the Ohio and Muskingum Rivers. The settlement was founded in 1788 and the district includes its original street grid, commons and 19th-century buildings.","why_significant":"Marietta is considered the first permanent settlement in Ohio and the Northwest Territory, founded by the Ohio Company of Associates in 1788. The district keeps its original street layout and commons as parkland, and retains many buildings from the 19th century in Federal, Greek Revival, Gothic Revival and Victorian styles. It also contains sites tied to early territorial government, such as the Campus Martius site and the Ohio Company Land Office.","narrative":"Marietta's historic district covers about 450 acres of flat river bottomland where the Muskingum meets the Ohio River in Washington County, Ohio. Forty-seven settlers sent by the Ohio Company of Associates landed here on April 7, 1788, and laid out a grid of unusually wide streets, with Washington Street at 120 feet. Public commons such as Sacra Via were set aside. The streets and parks survive today. The first years were spent inside the Campus Martius stockade, home to territorial officials including Governor Arthur St. Clair and General Rufus Putnam. The Campus Martius Museum now stands on part of that site and holds the original Ohio Company Land Office. Few original buildings remain, but many 19th-century ones do, including Federal, Greek Revival, Gothic Revival and Victorian examples along Front and Putnam Streets and in tree-lined residential blocks. The district is recognized as the first permanent settlement in the Northwest Territory.","period_of_significance":"1788-1910","architect_builder":null,"architectural_style":"Federal, Greek Revival, Gothic Revival and Victorian","criteria":[],"status_note":"Condition marked good and altered; the district is still occupied, with a business center on Putnam Street and residential areas to the north.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:09.892144-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/74001646.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/74001646/9f78984b95-800.webp","url_1600":"https://nationalhistoricalregister.com/media/74001646/9f78984b95-1600.webp","licence":"CC BY 3.0","author":"Bwsmith84 (talk)","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Marietta_Historic_District.jpg\" rel=\"noopener\">Bwsmith84 (talk)</a>, <a href=\"https://creativecommons.org/licenses/by/3.0\" rel=\"license noopener\">CC BY 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Marietta_Historic_District.jpg"},"district":{"nrhp_refnum":"01000903","name":"Marietta Historic District (Boundary Increase)","url":"https://nationalhistoricalregister.com/districts/ohio/marietta-historic-district-boundary-increase-01000903/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71991883","wikipedia":"https://en.wikipedia.org/wiki/Marietta_Historic_District_(Marietta,_Ohio)","wikidata":"https://www.wikidata.org/wiki/Q6763234"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/washington-county/marietta-historic-district-74001646/"}