[bert]

The writer believed it did not.

I don’t know

“One of the major problems that large centers like Cahokia faced was keeping a steady supply of food. A related problem was waste disposal for the dense population, and Cahokia became unhealthy from polluted waterways. Because it was such an unhealthy place to live, Snow believes that the town had to rely on social and political attractions to bring in a steady supply of new immigrants; otherwise the town’s death rate would have caused it to be abandoned earlier.[14]”

[GingisK]

There is too much human history that has been lost forever. Sometimes that frustrates and intrigues me. It would be better if we knew more. Maybe we'd learn to put bad habits behind us.

I've often wondered why the Native Americans had not yet discovered iron. Perhaps they lived more peacefully at large, minimizing the search for better weapons.

The sewage issue is an important one. Why did the Romans make decent sewer systems and those in the Americas did not? Too many questions.