That round feather contraption Cherokee and other Indian dancers wear on their behinds is called, in a variety of languages, a "Butterfly", and frequently it's called a "cho", a very specific term in many East Asian languages meaning "Butterfly".
It's the Cherokee and affiliated tribes who brought the horse East to Oklahoma and Cahokia ~ their tradition is a group said "Let's move ~ not enough game. So, they had a horse. The message came to the tribe ~ probably through their shaman ~ "Cut the horse loose" so they did and followed him to roughly Tulsa. From there they moved out everywhere else.
The arrival of the horse in Mid-America changed the lifestyle required of human beings to survive. They no longer had to grow corn. I've always suspected the Cherokee picked up the term "Cho" in Cahokia.
How did I live to be fifty, even having been fairly well educated and traveled almost the whole of the continent... And never even -once- hear of a place called Cahokia?