I need help with this pls

Three key amendments to the Constitution adopted shortly after the war — abolishing slavery, guaranteeing equal protection and giving African Americans the right to vote — further cemented federal power.

Explanation:

legal rights and freedom of speech.i hope that it is correct.

brainliest if correct

in which two ways were the northeast woodland indians and the southeast indians similar? both collaborated to form the iroquois confederacy. both cultivated the crops of corn, beans, and squash. both lived in rich environments of swamps and rivers. both lived in tree-bark dwellings called wigwams. both expected men to hunt, while women farmed.