On June 2, 1924 American Indians were granted full citizenship by an act of the US Congress.
It wasn’t until 1948 that Arizona allowed Indians to vote.

From The Heartbeat of Wounded Knee by David Treuer

An embarrassed “no comment” is all I can muster. For 24 years Arizona delayed and obfuscated. Shame.

The question we need to ask is: What are we doing today that a hundred years from now will appear so awful?

The photo is of some petroglyphs on Shaw Butte in north central Phoenix.