What is a formal agreement between two or more countries about trade, peace, and other matters called?

The fourteenth amendment how did the action resolve a longstanding conflict in post-civil war america? it defined the process for readmittance of the former confederate states into the united states of america. it ensured the right to vote to all male citizens of the united states, regardless of race, color, or prior servitude. it defined citizenship and related rights for african americans. it abolished slavery in the united states.

How did europeans and africans displace native americans in north america’s predominant peoples?

What was the original design for washington’s streets?!