Photo 1: Mathers Museum of World Cultures/Flickr
Cheyenne woman Jennie Red Robe with her child.
Location: Crow Reservation, Montana
Photo 2: John Tewell
A black family at the Hermitage Plantation, Savannah, Georgia, USA, about 1907
Photo 3: Marion Doss/Flickr
Prisoners in the concentration camp at Sachsenhausen, Germany, December 19, 1938.