The Genealogy of Lisp
1 These are the generations of Lisp, in the days when the machines were young and the parentheses were many.
2 In the beginning there was LISP 1.5, and it begat LISP 2, yet LISP 2 walked not long upon the earth and was abandoned by its people.
3 And LISP 1.5 begat Maclisp, and Maclisp dwelt among the hackers of MIT.
4 And Maclisp begat Interlisp, and Interlisp begat MDL, and they spread among the machines of the laboratories.
5 And Maclisp also begat Lisp Machine Lisp, which prospered upon the great Lisp machines.
6 And Lisp Machine Lisp begat Scheme, and the years of Scheme were many and elegant.
7 And Scheme begat R5RS, and R6RS, and R7RS, small yet wise.
8 And in those days there arose NIL, and NIL begat ZIL, the language of Zork, wherein adventurers wandered in darkness.
9 And from the line of Maclisp there also came Franz Lisp, and muLisp, and many implementations.
10 And in the fullness of time the elders gathered and brought forth Common Lisp, and it was made according to the ANSI standard, and its specification was exceedingly long.
11 And Common Lisp begat many children: XLISP, and Le Lisp, and Emacs Lisp, which dwelt within the editor.
12 And AutoLISP served the builders of drawings, and PicoLisp walked quietly among minimalists.
13 And from the lineage of Scheme came MIT Scheme, and Chez Scheme, and Gambit, each according to its implementation.
14 And EuLisp arose, and ISLISP, and OpenLisp, and they sought harmony among dialects.
15 And PLT Scheme begat Racket, which changed its name and went forth to teach the students.
16 And newLISP and GNU Guile were also born, serving those who desired extension and scripting.
17 And in later days appeared Visual LISP and Arc, spoken of in the writings of Paul.
18 And Clojure arose upon the JVM, immutable and persistent.
19 And Hy arose also, speaking Lisp with the accent of Python.
20 These are the families of Lisp according to their generations, their macros, and their parentheses.
21 Blessed are they who balance their parentheses, for theirs is the kingdom of the REPL.