It's a term used OTL quite frequently for the archaeology of that region. I use it for lack of a better term and because using "Southwest" too much makes me think "Southwest of what?" Southwest of a country that doesn't exist TTL? Southwest of an ATL US which took more of northwest Mexico in the Mexican-American War?I can't help but wonder how did "Oasisamerica" form as a reference to the Puebloans?
Covered somewhat in Entry 19. The people who became the Dakota and Lakota OTL are still in *Minnesota and *Wisconsin but they were mentioned. I probably should've written more. In any case, they're undergoing quite an aquacultural revolution and seeing the emergence of some noteworthy centers in what I've termed "Upper Misebian". The Chippewa/Ojibwe and other nearby Algonquians have been jostled around a bit by the Innu to their north but otherwise adapted to pastoralism, mining, and some aquaculture, especially further south, but are still rather separate from the Siouan cultures to their west. Overall copper working is pretty huge in the region.Also, there was precious little on the Plains area - what happened to the Dakota/Lakota and the Chippewa and the other tribes of the region?
I glossed over the Plains because it's still rather small-scale in terms of organization and cities but the people there are effectively middlemen on the trade routes between the civilizations of the Mississippi (Misebi) and Oasisamerica/Fusania. It's just the people most taking advantage of it live at the fringes of the Plains like the Caddoans, TTL's Mogollon culture. Still, pastoralism is a pretty important lifestyle change, and a few new crops like prairie turnips (despite their two year growing time) are also valuable. On the northern Plains aquaculture is highly useful since it gives higher yields for the harsher climate (even with the Medieval Warm Period).
You could very much compare it to Central Asia but the lack of any riding animal/cavalry/chariots makes it so steppe nomads have a much harder time gaining superiority (although pastoralist nomads TTL are still plenty successful between bison hunting, raising their own animals, and trading the surplus with villages). The implications of this seem closest to OTL East Africa although there's no Swahili equivalent.
Like OTL you have a mix of sedentary villages (albeit here with some more/different crops, especially on the northern Plains) and more nomadic communities which shift seasonally. But unlike OTL, the latter don't have an animal as useful as horses and only on the northern Plains do they have large animals at all, although to the south they're gradually adopting goats which are very useful in their own right.Yeah i am also very interested in the plains nations and how they adapt to a more sedentary higher population density lifestyle, defiitely think this was a key disadvantage they had otl during the american conquest.
So population density is higher, but not overtly so. There's only so much good farmland you can get to without expending lots of labour and deforestation is an issue. But pastoralism allows for greater mobility which has really increased the region's value as a place trade routes cross. The Rumahkaki (TTL's Mandan) have certainly benefitted from that as has the entire area of OTL's *North/South Dakota because it's suitable country for reindeer and aquaculture has been adopted to a far greater degree than elsewhere thanks to the colder climate.