Common Lisp mostly superseded Lisp 1.5 and Maclisp. Interlisp went away - Xerox included Common Lisp into Interlisp-D and later sold the product to a tiny vendo

Common Lisp mostly superseded Lisp 1.5 and Maclisp. Interlisp went away - Xerox included Common Lisp into Interlisp-D and later sold the product to a tiny vendor, renaming the product to Medley. Most Interlisp users were switching to Common Lisp - including Xerox. Xerox even was a driving force behind the Common Lisp Object System (CLOS) and its Meta-Object Protocol. Xerox paid for much of the research that went into it. Parts of CLOS were based on ideas from LOOPS for Interlisp-D. The first actual CLOS implementation was called Portable Common Loops (PCL) and was actually developed largely by/at Xerox PARC. Xerox PARC also developed a bunch of research software in Common Lisp. I would count Emacs Lisp, ISLisp, and some similar languages as mainline Lisps. Scheme is now called Scheme. Racket was renamed from DrScheme (IIRC), to avoid being directly associated with Scheme - since it is now its own language.