Forth, invented by Chuck Moore, was the first stack-based language. Forth supports a Concatenative style of programming, although it makes use of Parsing words more than subsequent languages.

Interesting implementations:

Two classic texts by Leo Brodie:

Forth implementation written in Literate Programming style:

There is a #forth IRC channel on Freenode.

This revision created on Mon, 22 Sep 2008 05:45:27 by slava (Just making a minor edit for testing purposes)