Where did Pre-Hispanic Cultures start and how did they inhabited this continent?
To answer this question, we would have to start by understanding the MIGRATION into the AMERICAS,
which suggests that in the Early Human Migrations as we see in the photograph (ABOVE) approximately 15.000 years ago people migrated from SIBERIA (today Russia) into ALASKA crossing the two continents as we see in the following picture:
These migrations called by the way they happened:
THE LAND BRIDGE THEORY:
They crossed the two continents through the BERING LAND BRIDGE today the BERING STRAIT, during the Wisconsin Glaciation when the ocean levels froze 200 ft. lower. Meaning that Pre-Hispanic Cultures are proper to the History of North America.