Remarkable Ohio

Serpent Mound Marker

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Ohio's Historical Markers Program

The Ohio Historical Markers identify, commemorate and honor the important people, places and events that have contributed to the state's rich history. The Ohio Historical Markers Program, administered by the Ohio Historical Society, is a vital educational tool, informing residents and visitors about significant aspects of Ohio's past.

The Remarkable Ohio historical markers page is your passport to the exciting historical sites around the state. Developed in 2005 as a partnership between the Ohio Historical Society and Ohio Government Telecommunications, this project expands upon the text of the Ohio Historical Markers through the addition of historic and contemporary photographs as well as educational resources. If, to our knowledge, the marker is no longer standing it will be noted on the marker information page.

New Ohio Historical Marker Application Deadline: July 1. To better accommodate "marker dedication season," the Ohio History Connection's Local History Office is revising the deadline for marker applications and for the marker grant program. There is now one deadline per year for applying for an Ohio Historical Marker - July 1. With this new deadline, the office will no longer accept applications on a rolling basis throughout the year. The new deadline will ensure that all applicants have their markers in time for marker dedication season the following spring. The new deadline will apply to applicants seeking marker grants as well as those who solely raise funds from local sources to erect markers. Beginning July 1, the markers grant program will be making ten grants at a time, the same total number that has been awarded each year in the past. For more information, click here.

How to Read a Marker

In addition to the text describing the historic marker, there are also the names of individuals and organizations that sponsored the particular marker and the year the marker was erected. This information is included at the bottom of the marker. Sponsors may also choose to attach a piece of custom artwork or metal plate to the marker. These can often be found in the corners and might include portraits or emblems. The Sewah code is also located at the bottom of each marker.

Example: Marker #23-1

  • 23 indicates that this particular marker is the 23rd marker to be erected in the county
  • 1 indicates that the marker is located in Adams County, which is alphabetically the first county