What on earth are you talking about? Tons of other languages do type classes "the haskell way". Which is also known as "type classes". Scala doesn't have type classes, it has a close approximation.
So basically what you are saying is "Haskell has Haskell's typeclasses!".
That's a yuuuuge amount of languages that follow "Haskell"'s design! (Maybe you should start counting Haskell-to-X compilers separately to pad the number "1" a bit?)