State's rights created conflict in the North and South because some believed the states had the right to their own decisions while others believed the states should follow the US government's directions.
This battle is significant because General Ulysses S. Grant's armies entrapped a Confederate army under General John Pemberton. This was one of the most brilliant military campaigns of the war.
The Union was once again victorious, since the Confederates surrendered.
This was significant because, in a single stroke, it changed the legal status of more than 3 million enslaved people in the South from "slave" to "free".
"I'm free now. I can do what I want, go where I wish without having to fear the opinions of my owner."
This was significant since it was one of the last battles of the American Civil War. Robert E. Lee's Army of Northern Virginia surrendered to the Union Army under Lt. Gen. Ulysses S. Grant.
"Can I get three cheers for enslaving literal walking, talking, human beings and banning them from having an education or any freedom whatsoever just because of their skin color?"
This was significant since Abraham Lincoln was so well known for his strong opinions on slavery, so when he was assassinated, some people were outraged.
Northerner: "Dang it, John."
Southerner: "Finally."
(See, Southerners, this is why no one likes you)
(I was talking about Southerners back then calm down)