Archaeological evidence points to a major change beginning around 1,000 years old, with the arrival of new technologies such as notched line sinkers and circular shell fishhooks, bows and arrows, flanged steatite pipes, stone "flower-pot" mortars, new Olivella shell bead types, and "banjo" effigy ornaments signifying the development of the Kuksui secret society.
Archaeological findings suggest a substantial transformation around 1,000 years ago, characterized by advancements such as notched line sinkers, circular shell fishhooks, bows and arrows, flanged steatite pipes, stone "flower-pot" mortars, new Olivella shell bead types, and "banjo" effigy ornaments. These innovations indicate the formation of the Kuksui secret society.