Class Oriented Ring Associated Language definition language
(CORAL) A language developed by L.G. Roberts at MIT
in 1964 for graphical display and systems programming on the TX-2. It used "rings" (circular lists) from Sketchpad
["Graphical Communication and Control Languages", L.B. Roberts, Information System Sciences: Proc Second Congress, 1965].
[Sammet 1969, p.462].