Which culture was prominent in eastern Oklahoma around 1300?

The Spiro Mound culture was prominent in eastern Oklahoma around 1300 and is recognized for its significant archaeological sites, including the Spiro Mounds located near the town of Spiro. This culture is characterized by its complex society, skilled craftsmanship, and elaborate burial practices, which included the construction of earthen mounds as burial sites for elites. The artifacts found at these sites, such as finely crafted pottery, shell and stone carvings, and ceremonial items, showcase a high level of artistry and social organization.

Additionally, the Spiro Mound culture is considered a part of the broader Mississippian culture, which thrived in various regions of the southeastern United States, but it specifically indicates the unique developments and influence present in eastern Oklahoma. This makes it distinct from other cultural groups in the area and highlights its importance in the historical narrative of Oklahoma.