Colmerauer, A. and Roussel, P. "The birth of Prolog"

[HOPL I] (1979) SIGPLAN Notices 14(04) April 1979 including The first ACM SIGPLAN conference on History of programming languages (HOPL) Los Angeles, CA, June 1-3, 1978   Alain Colmerauer

Languages mentioned Prolog {1971} Logic programming language