Cedar was a well-known (among language designers) programming language invented at Xerox Parc (see e.g. https://www.microsoft.com/en-us/research/publication/des

Cedar was a well-known (among language designers) programming language invented at Xerox Parc (see e.g. https://www.microsoft.com/en-us/research/publication/description-cedar-language/ https://www.microsoft.com/en-us/research/publication/descrip... or https://en.wikipedia.org/wiki/Mesa_(programming_language)#Cedar https://en.wikipedia.org/wiki/Mesa_(programming_language)#Ce...).