I got another idea for an alternate history in which "Native Americans" hold off Europeans much better than in our timeline. It is that they domesticate the buffalo (
American bison), giving them a head start.
Despite being the closest relatives of domestic cattle native to North America, bison were never domesticated by Native Americans. Later attempts of domestication by Europeans prior to the 20th century met with limited success. Bison were described as having a "wild and ungovernable temper";[40] they can jump close to 6 ft (1.8 m) vertically,[41] and run 35–40 mph (56–64 km/h) when agitated. This agility and speed, combined with their great size and weight, makes bison herds difficult to confine, as they can easily escape or destroy most fencing systems, including most razor wire.
But much the same thing was true of aurochsen, the wild ancestors of domestic bovines (
Aurochs).
Historical descriptions, like Caesar’s Commentarii de Bello Gallico or Schneeberger, tell that aurochs were swift and fast, and could be very aggressive. According to Schneeberger, aurochs were not concerned when a man approached, but when teased or hunted, an aurochs could get very aggressive and dangerous, and throw the teasing person into the air, as he described in a 1602 letter to Gesner.[9]
Domestication took place in a rather small spot -- a mitochondrial-DNA study suggests that domestic bovines are all descended from some 80 Middle-Eastern aurochs cows around 8500 BCE (
Origin of Modern Cows Traced to Single Herd | WIRED).
So in this timeline, some of the first mound builders domesticate buffalo. In our timeline, Watson Brake at 3500 BCE was the first of the mounds, and Poverty Point at 1500 BCE was a rather impressive Archaic-era construction. The
Eastern Agricultural Complex of crop plants was domesticated by around 1800 BCE, so I'll make buffalo domesticated by around 2000 BCE.
These animals prove a great convenience, just like domestic bovines. They live off of grass, so they don't compete with their masters for food. They can be eaten, they can carry loads, they can pull plows, and they can be milked. That last one would have provoked the response that it provoked among Europeans several centuries earlier: diarrhea and lots of intestinal gas from lactose intolerance. But when drinking buffalo-cow milk proves convenient for surviving famines, this creates selection for lactose tolerance, and North Americans join Europeans there.
Domestic buffalo enable this Louisiana society to spread, and they also spread across ethnic lines, as crop plants do. They spread into Mexico, and if the Aztecs emerge in this timeline, they eat beef rather than human flesh.
Eventually, maize and beans are imported northward, and they become crop staples in North America.
In the meantime, eastern North Americans domesticate turkeys, ducks and geese, getting more meat in their diet.
A common way for buffalo to carry loads is to put them on a sort of sled called a travois -- some sticks extended from a harness on the animal to the ground. That is rather awkward, and some ingenious craftsman thinks of an alternative. Put the far end of the travois on a sideways rod, and put disks on the ends of that rod, while letting the disks turn. Thus doing what some European craftsman had some several centuries earlier: inventing the wheel.
That helps domestic buffalo pull even bigger loads.
Then the first Europeans come and spread their diseases, like smallpox. But in this timeline, the populations in east-to-central North America are too high to allow the social breakdown of our timeline. The diseases spread gradually, with each afflicted population becoming a carrier to its neighbors.
Europeans also introduce horses, which go wild, and which get re-domesticated again. As in our timeline, some North Americans become horse-riding nomads, but some continues to be sedentary farmers. Like smallpox, horses spread first in the Mississippi Valley and its tributary-river valleys, then eastward across the Appalachians. Horses cause a lot of disruption, because they enable new war-fighting tactics. They also prove convenient for watching over big herds of buffalo. Thus the Indians become cowboys.