Romulus (modelling kernel)
The Romulus b-rep solid modeler was released in 1978 by Ian Braid, Charles Lang, Alan Grayer, and the Shape Data team in Cambridge, England. It was the first commercial solid modeling kernel designed for straightforward integration into CAD software. Romulus incorporated the CAM-I AIS and was the only solid modeler ever to offer a third-party standard API to facilitate high-level integration into a host CAD software program. Romulus was quickly licensed by Siemens, HP and several other CAD software vendors.