Matches in DBpedia 2016-04 for { ?s ?p "The Groma or gruma was a Roman surveying instrument. It comprised a vertical staff with horizontal cross-pieces mounted at right-angles on a bracket. Each cross piece had a plumb line hanging vertically at each end. It was used to survey straight lines and right-angles, thence squares or rectangles.The same name was given to: the center of any new military camp, i.e."@en }
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- Groma_surveying comment "The Groma or gruma was a Roman surveying instrument. It comprised a vertical staff with horizontal cross-pieces mounted at right-angles on a bracket. Each cross piece had a plumb line hanging vertically at each end. It was used to survey straight lines and right-angles, thence squares or rectangles.The same name was given to: the center of any new military camp, i.e.".
- Q643950 comment "The Groma or gruma was a Roman surveying instrument. It comprised a vertical staff with horizontal cross-pieces mounted at right-angles on a bracket. Each cross piece had a plumb line hanging vertically at each end. It was used to survey straight lines and right-angles, thence squares or rectangles.The same name was given to: the center of any new military camp, i.e.".