Okay, so, Lincoln had to wait for a Union victory. Antietam Was the victory he needed.
The Emancipation Proclamation changed the course of the war. It went from defeating the Rebels of the South to freeing the slaves. In every place that the Union army could take, the Slaves were all freed. This was a huge boost to the troops. They were now fighting to free people. Freeing all the slaves would have done nothing to keep the men fighting. the fight needed a better cause. Is there a better cause than Freedom? Fighting to unite the Country and fighting for freedom are far different things. Even today fighting for freedom is still top on everyones list.
I hope this helped you. :)
The bottom right image of the novel "Uncle Tom's Cabin" reminds me of the uproar caused 9 years before the war. The north and south both opinionated stances on the acceptance of the book due to its contents.
The top left shows The Liberator newspaper, a widely circulated anti-slavery newspaper that continued publishing throughout the war. It bashed the Constitution and went as far as calling it a pro-slavery document.
Answer:
A good way to get the answer is to into a POV at that time. What are they fighting for? What beliefs do they believe in because of the war. The big one is Slavery. Big in the south, Abraham Lincoln was trying to make slavery illegal. Another was States Rights, that states can make their own state laws. Ex: In Arizona it's illegal to cut down a cactus. And Abraham Lincoln himself, the people in the south didn't like that he wanted to end slavery. So there was a war brewing between the north, and the south.
Explanation: