Trade increased in mesopotamia as a result of

letting all people know all the laws.

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation:

hello most volcanoes are located at either divergent or convergent plate

this is where the plate motions aswell form magma