American natives were more advanced than cavemen. But they hadn’t even invented the wheel yet.
Actually they had,...for toys.
According to Jared Diamond’s “Guns, Germs, and Steel”, (an excellent read!) ancient Native Mexicans invented wheeled vehicles with axles for use as toys, but not for transport. (Archeologist have found them.)
This is because they lacked domestic animals and the need was never there.
Came across a rather un-p.c. website that said they didn’t need pack animals, they had women! LOL!