Also add Forth, Prolog, Brainfuck, Haskell/ML and Ruby. There's more to programming than you think.
And Ruby is Python-mimicry open your eyes.
> I knew Python then. But I didn't like it, because I didn't think it was a true object-oriented language---OO features appeared to be add-on to the language. As a language manic and OO fan for 15 years, I really wanted a genuine object-oriented, easy-to-use scripting language. I looked for, but couldn't find one.
No one tell them about the horrors of R. That's a 'yikes' of a language that no one should ever use.
And there is C where the assignment expression is just “=”, there is no assignment statement, and many forgotten double equals led to bugs …