why would artist george caitlin's paintings from the 1800's be considered a form of artistic documentation?

Catlin wanted his exhibit to be sold to the US congressmen and wanted his paintings to be an historic documentation of Indian life. He hoped that his paintings would be the centerpiece of a national museum dedicated completely to the Indians way and their life.

Explanation:

answer; i believe the correct answer is in new york,in subway stations,public murals and night clubs;