to kill uneeded native-americans
Jazz is an American art form created by black Americans.
"Why do Native Americans come from different tribes."
Native Americans used horses as their most efficient form of transportation.
Jazz is an American form of music and not taken from any other form so it provides an national audience and identity.
Native Americans had a new form of transportation.
All agricultural societies had a form of the Rain Dance (Native Americans, Egyptians, Slavic, Romanians, etc.)
Goods and services; Native Americans had no concept of "money" in any form before its introduction with immigrants from Europe.