There are many different Native American cultures. One of them is the mound builders or the Anazi. The mound builders began settling about 2,700 years ago. They got their name because they built mounds that were in many different shapes. Archaeologists have found many weird artifacts, like stone pipes, copper tools and mirrors that were made of mineral mica. Archaeologists also know that some mounds were made for religious ceremonies, not just burial sites.
The Adenas were also mound building people who settled in mode