Answer:
communication
Explanation:
due to writing we are able to communicate fluently with one another
General Lee surrendered a. in the village of Appomattox Court House.
it is not Bull Run, because that was the first "ligit" battle fought between opposing sides
it is not Gettysburg, because that was the turning point of the war
It is not Vicksburg, because that was a siege inplaced by the Union to finish the Anaconda Plan, which split the Confederacy into two
hope this helps
The Monroe Doctrine forbidden the European powers from colonizing in the additional lands in the Americas.