Which native american group built cities and had widespread trade throughout the midwestern region of north america?
a.
mound builders
b.
eastern woodland
c.
plains
d.
northwest

answer: i cant no exerpt

explanation:

they had many gains 1 one freedom for slaves the major cause of the civil war is that the   north wanted freedom for slaves but the south didn; t creaitng the civil war

another gain they have is poltiical influence

poltiical influence is a big thing everywhere even now peoplle are always trying to get the head up in poltics thats what they did by giving the republicians a good name for freeing slaves