Answer:
1. 2
2. 3
Explanation:
1. Black Americans were permitted to serve in the Union Army for the first time, and nearly 200,000 would do so by the end of the war. Finally, the Emancipation Proclamation paved the way for the permanent abolition of slavery in the United States.
2. It was the last Confederate invasion of the North. The day after the battle of Gettysburg, Union forces defeated Confederate forces at Vicksburg, Mississippi. This victory gave them control of the Mississippi River. And it split the states of the Confederacy.
