On one day, in 1924, all American Indians were made United States citizens | Constitution Center #indigenous
« As late as 1948, two states (Arizona and New Mexico) had laws that barred many American Indians from voting, and American Indians faced some of the same barriers as blacks, until the passage of the Civil Rights Act of 1965, including Jim Crow-like tactics and poll taxes. »
https://constitutioncenter.org/blog/on-this-day-in-1924-all-indians-made-united-states-citizens