agriculture
they were separate from all other cultures and developed a equine one themselves
Their urban growth was the result of volcanic eruptions. There weren't any explosions in N. America that forced this, so they had no reason to urbanize. (I had to answer the same question for AP World History. Hang in there!)
Which waterway was developed as a result of the invention of steamboats?
each of these cultures learned to adapt to it's environment.in doing so they scientific advances. for example, in the steep mountains, people made terraces for farming.as a result farming could support large populations both in the highlands and on the coast
each of these cultures learned to adapt to it's environment.in doing so they scientific advances. for example, in the steep mountains, people made terraces for farming.as a result farming could support large populations both in the highlands and on the coast
that hilter's advances could be blocked
technology
Mesopotamia at 3200 BCE and Mesoamerica at 600 BCE, are believed to be the places which have the oldest records of writing. Writing systems were developed in Egypt in 3200 BCE and China in 1200 BCE, but it is unclear whether they initiated the process or if their knowledge came about as a result of cultural diffusion.
Civilizations began to develop a defined territory.
Isolation from other early civilizations
indians
The proportion of human labor used in the production of farm goods dropped by measurable degrees as a result of farming advances