Gerald Jay Sussman and Guy Steele attempt to explicate for themselves some aspects of Carl Hewitt's theory of actors as a model of computation.
The initial report on Scheme is published.
Lambda: The Ultimate Imperative is published.
Lambda: The Ultimate Declarative is published.
Revised report on Scheme is published.
R2RS.
Structure and Interpretation of Computer Programs is published.
R3RS.
R5RS is published.
August 28, R6RS is ratified.