Magik is a programming language created in 1989.
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Magik is an object-oriented programming language that supports multiple inheritance, polymorphism and is dynamically typed. It was designed implemented in 1989 by Arthur Chance, of Smallworld Systems Ltd, as part of Smallworld Geographical Information System (GIS). Following Smallworld's acquisition in 2000, Magik is now is provided by GE Energy, still as part of its Smallworld technology platform. Read more on Wikipedia...
my_procedure << _proc @my_procedure(a, b, c) _return a + b + c _endproc x << my_procedure(1, 2, 3) # x = 6