Wikipedia is her home-page.
Of course the Mayans were more intelligent and advanced. Thats why they only practiced human sacrifice, while the Noble Indians to the north simply waged indiscriminate war on neighboring tribes and captured other Noble Indians for slaves.......DUH!
Interestring debate about were the South American Indians any more advanced then the North American Indians.
I have to say Yes on all counts. Climate made a big difference between the two, amount of rain fall, the seasonal temperatures for growing crops. In North America the growing season was short, led to the people following the herds in the winter or wintering by any coast as it was warmer then inland.
The climate in Central and south America made farming much easier all year round. As the farming was done mostly by the woman the men had more time to build the amazing temples and tombs we see today. More time to spend sitting about schmoozing about the stars and building a mathematics to figure it all out.
I often wondered about the Great plains and if civilizations at that time grew so large the trees or forest disappeared and gave way to the millions of Buffalo that grazed on them.
Ideas and theory's are everywhere as to all the unexplained things that crop up from time to time.
Far as Nads and her story about the wheel in way beck When. I can see how she is correct, not easy driving through a jungle on wheels. And what would pull the carts, no horses, or Mules. Wrong part of the world to even think of wheels as a transport.