The Free On-line Dictionary of Computing (30 December 2018):
Objective CAML
    (Originally "CAML" - Categorical Abstract Machine
   Language) A version of ML by G. Huet, G. Cousineau, Ascander
   Suarez, Pierre Weis, Michel Mauny and others of INRIA.  CAML
   is intermediate between LCF ML and SML [in what sense?].
   It has first-class functions, static type inference with
   polymorphic types, user-defined variant types and product
   types, and pattern matching.  It is built on a proprietary
   run-time system.
   The CAML V3.1 implementation added lazy and mutable data
   structures, a "grammar" mechanism for interfacing with the
   Yacc parser generator, pretty-printing tools,
   high-performance arbitrary-precision arithmetic, and a
   complete library.
   in 1990 Xavier Leroy and Damien Doligez designed a new
   implementation called CAML Light, freeing the previous
   implementation from too many experimental high-level features,
   and more importantly, from the old Le_Lisp back-end.
   Following the addition of a native-code compiler and a
   powerful module system in 1995 and of the object and
   class layer in 1996, the project's name was changed to
   Objective CAML.  In 2000, Jacques Garrigue added labeled and
   optional arguments and anonymous variants.
   Objective CAML Home (http://ocaml.org/).
   Usenet newsgroup: news:comp.lang.ml.
   ["The CAML Reference Manual", P. Weis et al, TR INRIA-ENS,
   1989].
   (2002-05-21)