Which civilization had a conquest-based economy instead of a trade-based one?

In some african american communities, unemployment was as high as percent.

Explain how colonists treated the native americans and what happened to natives. ! ^^^ 12 points

Which statement best explains why a supreme court opinion is a seminal document? an opinion can become quite lengthy, which makes it a seminal document. supreme court documents are the only seminal documents in the united states. an opinion may create major changes in the laws or policies of the united states. generally speaking, a supreme court opinion reflects the feelings of all americans.