You are looking at an intriguing picture entitled "Navaho Smile". It was taken in 1904 by Edward S. Curtis. The picture presents a Navaho woman sitting outside her doorway, with her right hand on her cheek, with a beautiful smile. One must wonder about the kind thoughts that are leading to such a cheerful face.
About the same time Europe was emerging from it’s Dark Ages, the Anasazi, the ancestral Pueblo people, flourished in the desert areas of the American Southwest. Description from rontayyab.com. I searched for this on bing.com/images