How did uhn-uh come to mean “no” and uh-huh come to mean “yes” in English?

Question

Pretty much the title. Also curious if other languages have similar non-word sounds for negation/affirmation.

In: Other

Answer 1

I’m more curious as to how HAAAAANNNN!? came to mean, sorry, what, excuse me, I didn’t hear you , and how it got to be so common