The slave holding states at the time of the US Civil War were: South Carolina, Mississippi, Florida, Alabama, Georgia, Louisiana, Texas, Virginia, Arkansas, Tennessee and North Carolina.
Northern states where slavery was still legal were: Delaware, Maryland, Kentucky, and Missouri. They were the Border States that remained in the Union.
15 slave states and 19 free states during the American Civil War
It was Union Civil War days. All Northern states were free.
There was no agreement only the Civil War
All the free states, plus four slave-states that did not vote Confederate and chose to stay loyal.
1865
The Civil War only started because the slave states wanted to become their own country so they could continue slavery. If slavery didn't become illegal there might not have been a war
40,000 slaves 40,000 slaves
Mason dixon line
No. The Dred Scott decision basically said all the states of the USA were slave states and a slave in a "free" state was still a slave. The Dred Scott decision helped to lead to the Civil War.
The slave-owning southern states.
The Union in the American Civil War represented the free states (meaning slave-free states) plus five border slave states in the north of America. The Confederate States of America (the Confederacy) comprised the eleven southern slave states which had seceded from the United States of America.
The slave states during the Civil War were Delaware, Maryland, Virginia, North Carolina, South Carolina, Missouri, Kentucky, Tennessee, and Georgia. Other slaves states were Texas, Arkansas, Louisiana, Alabama, and Florida.