" A host of scholars who have studied surviving southeastern Indian groups conclude that few if any of these peoples possess cultures that do not bear the mark of significant contact with nonindigenous societies. Even the most “traditional,” such as the Seminoles of Florida, whom Nancy O. Lurie describes as “Contact-Traditional,” were significantly altered from precolonial days by the time pioneer “salvage” ethnologists described their cultural traits and created laundry lists that have since become benchmarks for defining aboriginal culture in the region. To many more traditional reservation-based groups, having surviving Indian cultural traits is extremely important to proving authenticity, although they are not required for acknowledgement via the BIA process. The existence of surviving Indian cultural traits is highly persuasive to most observers in proving that a group still exists as a viable tribal community. "

― , Claiming Tribal Identity: The Five Tribes and the Politics of Federal Acknowledgment