Noncitizen Indians were made citizens in 1924 by?

Noncitizen Indians were granted U.S. citizenship in 1924 through the Indian Citizenship Act, also known as the Snyder Act. This legislation recognized the citizenship of all Native Americans born in the United States, although many states found ways to keep them from voting until the 1950s. The act aimed to acknowledge the contributions of Native Americans and integrate them into American society, though it did not grant them the right to vote in all states immediately.