Horses revolutionized trade across the sahara because their feet did not sink in the sand and they could travel for many days without water. true or false?

The spanish class system placed people in the top class primarily based upon how much american blood a person had. how much spanish blood a person had. where a person worked. whom a person married.

Who were the main leaders of the major powers (france, england, and great britain) during the treaty of versailles?

People who move from place to place for survival is called