Lesser known programming languages

The lesser known programming languages are a set of joke languages described in an article by John Unger Zussman published in InfoWorld, Oct 4, 1982. This makes them some of the oldest known esoteric programming languages.

The languages

 * C-
 * COCAINE
 * DOGO
 * FIFTH
 * LAIDBACK
 * LITHP
 * SARTRE
 * SIMPLE
 * SLOBOL
 * VALGOL

Later additions
Several variations of the list exists. Further verification of its history would be welcome.
 * FASTBOL, FOCUSALL, GERITOL and PINBOL seem to originate from the Pi Mu Epsilon Journal, Volume 8, #9, 1983.
 * RENE is quite common.

External resources

 * UseNet post.
 * Page by Darrel Damon including several of the extensions mentioned.
 * The thalia.org Humor Archives - Computers, search for Little Known Computer Languages. References the Pi Mu Epsilon Journal.