POP-2 is a programming language created in 1967.
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POP-2 (also referred to as POP2) is a programming language developed around 1970 from the earlier language POP-1 (developed by Robin Popplestone in 1968, originally named COWSEL) by Robin Popplestone and Rod Burstall at the University of Edinburgh. It drew roots from many sources: the languages LISP and ALGOL 60, and theoretical ideas from Peter J. Landin. Read more on Wikipedia...
vars operation 3 +*;
lambda x y; x * x + y * y end -> nonop +*