Smalltalk

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Smalltalk was created by Software Concepts Group (i.e.Xerox) in a development led by Alan Kay in the early 1970s. Smalltalk took the concepts of class and message from Simula-67 and made them pervasive, basically creating the quintessential object-oriented language. Early versions were Smalltalk-72, Smalltalk-74, and Smalltalk-76; now we're on Smalltalk-80.

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