Zitkála-Šá was a Yankton Dakota writer, musician, educator, and activist. Throughout her career, she wrote and published a variety of works, including an anthology of Dakota stories and an opera.
In 1916 she was the Secretary of the Society of the American Indian and served as the liaison between the society and the Bureau of Indian Affairs. In 1926 she founded the National Council of American Indians. Just a few years later in 1928, she was appointed to the Merriam Commission, whose findings led to important reforms.

Zitkála-Šá continually advocated for Native rights, opportunities, and cultural preservation throughout her life. #womenshistorymonth

https://en.wikipedia.org/wiki/Zitkala-Sa