Knowledge: The storytelling methods that were once oral have evolved into the diverse literature and media we consume today. The modern clown took shape in the 19th century with the advent of the circus.

Conversation:
I have a friend that is terrified of clowns. Its pretty funny.
Ah, OK. Clowns use slapstick or other types of physical comedy.
I have never really minded them myself. Do you know when the concept was invented?
I do not, but the tradition dates back to the medieval times when they entertained royalty
Oh cool. So how did they evolve into what we know today?

Response: The emergence of the modern clown occured in the 19th century with the advent of clowns.