Ideas for Programming Languages to Compare and Contrast
=======================================================

Ada
C
C++
C#
COQ
Clojure
Curry
D
Eiffel
Erlang
Factor
F#
Forth
Go
Haskell
Isabelle
Java
Javascript
Julia
Lua
Mercury
Modula-2
OCaml
Oberon-07
Objective-C 
Perl5
Perl6
PHP
Prolog
Python2
Python3
R
Racket
Ruby
Rust
Scala
Schema
Standard ML
Swift
TCL