Here's a really interesting little research summary article about horses and their dispersion across North America in the 17th century. Did you know horses originally came from the continent, but died out around the end of the last Ice Age? It's fairly well known now, from what I gather, but this is the first I'd heard of it. Anyway, have a look:

#Archaeology #IndigenousArchaeology #Horses #Science

https://www.livescience.com/indigenous-people-of-the-american-west-used-sacred-horses-a-half-century-earlier-than-previously-thought