What was the result of reconstruction on the five civilized tribes

As a result of this final concession, the Five Tribes lost the western half of present Oklahoma. These treaties had a tremendous impact on future relations between the federal government and the Five Tribes. The influx of whites moving into I.T. after the Civil War pressed for statehood during the 1890s and early 1900s. However, tribe members fought to retain their sovereignty based on the clause in the Reconstruction Treaties that stated that no federal legislation could interfere with or annul their tribal organization.

answer: this is because archeologists keep finding artefacts and ancient ruins dated more than 10000 to 15000 years, date around scientists said humans discovered language; which is at least mysterious as scientists always have said that is necessary to have a language to have architecture and some basic maths.

explanation: brainlest