History
Early 1970s: Design and implementation of ML by Milner, Morris, and Wadsworth at the Univ. of Edinburgh, Scotland.
ML: Metalanguage of the Edinburgh LCF system.
LCF = Logic for Computable Functions
Gordon, Michael, Robin Milner, and Christopher Wadsworth. "Edinburgh LCF: A Mechanized Logic of Computation," Lecture Notes in Computer Science,
Vol.78, Springer-Verlag, NY, 1979.
Mid 1980s: Standardization of ML.