List of People Who Created a Programming Language

What programming language is unix? It really doesn't fit the context of everything else listed around it. Saying Ken Thompson created the C and Unix programming languages is like saying Bill Gates created GWBASIC and Windows programming languages.

Isn't Powershell (msh) the same as ksh, but with a few specific MSDOS-isms like drive letters and backward slashes? How is that more of a programming language than bash or every other shell that operate exactly the same way under their respective host OSes? How about MSDOS batch files? You could even compile those into a .COM binary.

Either way, when this is fleshed out, it would make an awesome wikipedia page. But the definition of "programming language" seems either clumsy or biased - not sure which.