Matches in DBpedia 2014 for { ?s ?p Delaware Boundary Markers is a national historic district located on the State boundary lines between Delaware, Maryland, and Pennsylvania. The district includes 94 contributing sites along the Mason–Dixon line and includes the Transpeninsular Line, "Post Marked West" site, Mason-Dixon Line, Tangent Line, The Arc, and The 12-Mile Circle. It was added to the National Register of Historic Places in 1975.. }
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- Delaware_Boundary_Markers abstract "Delaware Boundary Markers is a national historic district located on the State boundary lines between Delaware, Maryland, and Pennsylvania. The district includes 94 contributing sites along the Mason–Dixon line and includes the Transpeninsular Line, "Post Marked West" site, Mason-Dixon Line, Tangent Line, The Arc, and The 12-Mile Circle. It was added to the National Register of Historic Places in 1975.".
- Delaware_Boundary_Markers comment "Delaware Boundary Markers is a national historic district located on the State boundary lines between Delaware, Maryland, and Pennsylvania. The district includes 94 contributing sites along the Mason–Dixon line and includes the Transpeninsular Line, "Post Marked West" site, Mason-Dixon Line, Tangent Line, The Arc, and The 12-Mile Circle. It was added to the National Register of Historic Places in 1975.".