The landmark decision recognizing the rights of tribes in America is the Indian Self-Determination and Education Assistance Act of 1975. This act marked a significant shift in federal policy, granting Native American tribes greater control over their own affairs and enabling them to govern themselves. It allowed tribes to negotiate contracts with the federal government to provide their own education and social services. This empowerment laid the groundwork for future advances in tribal sovereignty, enabling tribes to manage resources, educate their members, and preserve their cultures and languages, fostering a revolution in tribal rights and governance.