For the answer to the question above, the settlers wanted the land for themselves.
<span>When the Native Americans already living there refused to just hand it over and move to reservations hundreds of miles away, the US government sent troops in to shoot them and take it by force, a policy that many native Americans forcibly resisted.</span>
They interpret the meaning of symbols or image in the art work. The images have some association with past events or the real world. Art historians do careful research and have a wide knowledge of artifacts and past events. This serves as a guide for them to unlock the mysteries and interconnection of images on the painting.