The Battle of Gettysburg...
a) was not as terrible of a battle as Ft. Sumter had been.
b) gave General Pickett his greatest military victory.
c) allowed Lincoln to announce the nation should have “a new birth of freedom.”
d) delivered to the Union control of the entire Mississippi River.
Explanation: He had pushed back The South and confronted them. I also have a source: An article by History Explaining his victorys. It explains the importance of this battle for him.