> The wheel just wasn't that useful because there was no road infrastructure to make it viable. The wheel was invented and used widely in Eurasia millennia bef

> The wheel just wasn't that useful because there was no road infrastructure to make it viable. The wheel was invented and used widely in Eurasia millennia before the invention of road infrastructure. American horses were even the ancestors of Eurasian horses; they were likely wiped out with other American megafauna by the Native Americans. We don't know why Amerindians weren't traveling around in wheeled vehicles pulled by animals in 1491, but "it wasn't practical" is not the answer.