Reviews of pre dating
A few, such as the Maya civilization, had their own written records.Because many Christian Europeans of the time viewed such texts as heretical, men like Diego de Landa destroyed many texts in pyres, even while seeking to preserve native histories.As early as 6500 BCE, people in the Lower Mississippi Valley at the Monte Sano site were building complex earthwork mounds, probably for religious purposes.This is the earliest dated of numerous mound complexes found in present-day Louisiana, Mississippi and Florida.
Maudslay, and of institutions such as the Peabody Museum of Archaeology and Ethnology of Harvard University, led to the reconsideration and criticism of the European sources.
However, older sites dating back to 20,000 years ago have been claimed.
Some genetic studies estimate the colonization of the Americas dates from between 40,000 and 13,000 years ago.
The Paleo-Indians were hunter-gatherers, likely characterized by small, mobile bands consisting of approximately 20 to 50 members of an extended family.
These groups moved from place to place as preferred resources were depleted and new supplies were sought. These included distinctive projectile points and knives, as well as less distinctive implements used for butchering and hide processing.
Many of these peoples and their descendants continue traditional practices while evolving and adapting new cultural practices and technologies into their lives.