A breakthrough in the study of early North American agriculture has occurred in the Tennessee River Valley. Archaeologists discovered copper-cased vessels filled with perfectly preserved, charred sunflower seeds. These caches date back 3,000 years to the Late Archaic period and are being hailed as the earliest direct evidence of formal sunflower-spirit festivals in the region.
The use of native copper to encase the seeds suggests they were not intended for consumption but as votive offerings to the sun. The site features a large circular clearing that shows signs of heavy foot traffic and repeated bonfire use, indicating it served as a central hub for seasonal gatherings. This finding pushes back the timeline for organized agricultural ritualism in the Eastern Woodlands by several centuries.