Founding year: Wikipedia. First post office: 1852.The full story ↓
History grade
What drives Arcanum’s History grade
On its age, its old homes and the National Register, Arcanum is more historic than 63% of U.S. towns. Its age holds the grade up; its National Register listings pull it down.
B
HistoryA character grade: shown, never part of Arcanum’s overall grade.
Ohio towns list about as much on the Register as the country (a typical Ohio town has 2.9 per 10,000 residents, the U.S. 2.4), so Arcanum’s 0.0 sits below most of its state (23% of Ohio towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from C+ to A−. The pre-1940 share is a Census survey estimate (±6.9 points). Two sources give 1849.
Founding year: Wikipedia (other dates in Quick answers). Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Arcanum’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a year, then a sheet.
Arcanum was laid out in 1849. The Greenville and Miami railroad arrived to Arcanum in 1852, connecting it to Dayton and much of the outside world. This helped contribute to the majority of its economic prosperity. Arcanum received its name in November 1848 when two engineers were given the task by John Gunder. Gunder instructed the men to "select a name and have one that is not on the map of the globe." Between the first requirement and the dark, foggy November weather, the men chose "Arcanum," which conveniently means "secret, hidden." A post office has been in operation at Arcanum since 1852.
Passages that mention Arcanum, cut from the printed page as they were published.
History of Darke County, Ohio, from its earliest settlement to the present time ..1914 · page 403Read the page →
Read the text
Arcanum has had the benefit of a local press for over thirty years. The Arcanum Visitor, an independent weekly, was printed about 1876 to 1878 by a man named Wasson and in 1880 Samuel R. Ivemble founded the Tribune which he published for nearly ten years. In 1888, the "Arcanum Enterprise" was launched and has been issued for over a quarter of a century. It is a staunch Democratic sheet and is owned and edited by C. R. Musson, an experienced newspa-
Text read by machine from the scan; it may contain errors.
History of Darke County, Ohio, from its earliest settlement to the present time ..1914 · page 232Read the page →
Read the text
Oak Grove, Adams township, two miles north of Gettysburg ; Miller's Grove, Franklin township, two miles south of the village of Painter Creek ; Fourman Meeting House, two miles east and two north of Arcanum. Besides these a number of members living in the neighborhood of Castine attend Price Creek Meeting House, two miles south of Castine in Preble county.
Text read by machine from the scan; it may contain errors.
Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.
By decade
Arcanum, decade by decade
One decade in the archive so far: the 1910s. Scroll each row; tap a photo for its story.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
In 1849, according to Wikipedia’s history of the town. Arcanum’s post office opened in 1852, and the census of 1870 counted 450 people here.
How does Arcanum rank for history?
Arcanum is more historic than 63% of U.S. towns. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
How old are the homes in Arcanum?
23% of Arcanum’s homes were built before 1940 (Census estimate, ±6.9 points), against a typical 15% for an Ohio town; the median home was built in 1968.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021).
From Wikimedia Commons (7), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System, Sanborn fire insurance maps (Library of Congress) and old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
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